About
Professor Summers is internationally recognised for his research excellence, which focuses on two areas: metrologies for cell analysis (cytometry) and the development of nanoparticle-based diagnostics and therapeutics (nanomedicine).
Professor Huw Summers
Chair in Nanotechnology to Health,
Biomedical Engineering
Telephone number
+44 (0) 1792 602915
Research Links
Office - 421
Fourth Floor
Engineering North
Bay Campus
Fourth Floor
Engineering North
Bay Campus
Available For Postgraduate Supervision
Areas Of Expertise
- Systems Cytometry
- Nanoparticle metrology and toxicology
- Nanoparticle fluorophores
Publications
Research Highlights
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Piasecka, J., Thornton, C., Rees, P., & Summers, H. (2020). Diffusion Mapping of Eosinophil‐Activation State. Cytometry Part A, 97(3), 253-258.
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Verma, J., Harte, D., Shah, U., Summers, H., Thornton, C., Doak, S., Jenkins, G., Rees, P., Wills, J., & Johnson, G. (2018). Investigating FlowSight® imaging flow cytometry as a platform to assess chemically induced micronuclei using human lymphoblastoid cells in vitro. Mutagenesis, 33(4), 283-289.
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Mei, K., Ghazaryan, A., Teoh, E., Summers, H., Li, Y., Ballesteros, B., Piasecka, J., Walters, A., Hider, R., Mailänder, V., & Al-Jamal, K. (2018). Protein-Corona-by-Design in 2D: A Reliable Platform to Decode Bio-Nano Interactions for the Next-Generation Quality-by-Design Nanomedicines. Advanced Materials, 30(40), 1802732
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Clark, C., Barnes, C., Summers, H., Mackintosh, K., & Stratton, G. (2017). Profiling Movement Quality Characteristics of Children (9-11y) During Recess. European Journal of Human Movement, 39, 143-160.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa38121
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Clark, C., Barnes, C., Swindell, N., Holton, M., Bingham, D., Collings, P., Barber, S., Summers, H., Mackintosh, K., Stratton, G., Holton, M., Summers, H., Mackintosh, K., & Stratton, G. (2018). Profiling Movement and Gait Quality Characteristics in Pre-School Children. Journal of Motor Behavior, 50(5), 557-565.
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Summers, H., Rees, P., Wang, J., Al-Jamal, K., Rees, P., & Summers, H. (2017). Spatially-resolved profiling of carbon nanotube uptake across cell lines. Nanoscale, 9(20), 6800-6807.
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Hassan, H., Smyth, L., Rubio, N., Ratnasothy, K., Wang, J., Bansal, S., Summers, H., Diebold, S., Lombardi, G., & Al-Jamal, K. (2016). Carbon nanotubes' surface chemistry determines their potency as vaccine nanocarriers in vitro and in vivo. Journal of Controlled Release, 225, 205-216.
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HONDOW, N., BROWN, M., STARBORG, T., MONTEITH, A., BRYDSON, R., Summers, H., Rees, P., BROWN, A., & Brown, R. (2016). Quantifying the cellular uptake of semiconductor quantum dot nanoparticles by analytical electron microscopy. Journal of Microscopy, n/a-n/a.
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Summers, H., Ware, M., Majithia, R., Meissner, K., Godin, B., & Rees, P. (2016). Multiscale benchmarking of drug delivery vectors. Nanomedicine: Nanotechnology, Biology and Medicine, 12(7), 1843-1851.
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Summers, H., Wills, J., Brown, M., & Rees, P. (2015). Poisson-event-based analysis of cell proliferation. Cytometry Part A, 87(5), 385-392.
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Brown, M., Hondow, N., Brydson, R., Rees, P., Brown, A., & Summers, H. (2015). Statistical prediction of nanoparticle delivery: from culture media to cell. Nanotechnology, 26(15), 155101
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Margulis, K., Srinivasan, S., Ware, M., Summers, H., Godin, B., Magdassi, S., & Summers, H. (2014). Active curcumin nanoparticles formed from a volatile microemulsion template. Journal of Materials Chemistry B, 2(24), 3745
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Rees, P., Wills, J., Brown, R., Tonkin, J., Holton, M., Hondow, N., Brown, A., Brydson, R., Millar, V., Carpenter, A., & Summers, H. (2014). Nanoparticle vesicle encoding for imaging and tracking cell populations. Nature Methods, 11(11), 1177-1181.
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Ware, M., Godin, B., Singh, N., Majithia, R., Shamsudeen, S., Serda, R., Meissner, K., Rees, P., & Summers, H. (2014). Analysis of the Influence of Cell Heterogeneity on Nanoparticle Dose Response. ACS Nano, 8(7), 6693-6700.
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Summers, H. & Summers, H. (2013). Nanomedicine
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Summers, H. & Summers, H. (2013). Nanomedicine
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Begum, J., Day, W., Henderson, C., Purewal, S., Cerveira, J., Summers, H., Rees, P., Davies, D., Filby, A., Rees, P., & Summers, H. (2013). A method for evaluating the use of fluorescent dyes to track proliferation in cell lines by dye dilution. Cytometry Part A, 83(12), 1085-1095.
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Hondow, N., Wang, P., Brydson, R., Holton, M., Rees, P., Summers, H., Brown, A., Rees, P., & Summers, H. (2012). TEM analysis of nanoparticle dispersions with application towards the quantification ofin vitrocellular uptake. Journal of Physics: Conference Series, 371, 012020
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Ferrati, S., Shamsudeen, S., Summers, H., Rees, P., Abbey, J., Schmulen, J., Liu, X., Wong, S., Bean, A., Ferrari, M., Serda, R., Rees, P., & Summers, H. (2012). Inter-endothelial Transport of Microvectors using Cellular Shuttles and Tunneling Nanotubes. Small, 8(20), 3151-3160.
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Summers, H. & Summers, H. (2012). Bionanoscience: Nanoparticles in the life of a cell. Nature Nanotechnology, 7(1), 9-10.
All Research
Journal Articles
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Summers, H., Wills, J., & Rees, P. (2022). Spatial statistics is a comprehensive tool for quantifying cell neighbor relationships and biological processes via tissue image analysis. Cell Reports Methods, 2(11), 100348
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White, M., Neville, J., Rees, P., Summers, H., & Bezodis, N. (2022). The effects of curve registration on linear models of jump performance and classification based on vertical ground reaction forces. Journal of Biomechanics, 140, 111167
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White, M., Bezodis, N., Neville, J., Summers, H., & Rees, P. (2022). Determining jumping performance from a single body-worn accelerometer using machine learning. PLOS ONE, 17(2), e0263846
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Summers, H. (2021). Practical machine learning for disease diagnosis. Cell Reports Methods, 1(6), 100103
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Summers, H., Gomes, C., Varela-Moreira, A., Spencer, A., Gomez-Lazaro, M., Pêgo, A., & Rees, P. (2021). Data-Driven Modeling of the Cellular Pharmacokinetics of Degradable Chitosan-Based Nanoparticles. Nanomaterials, 11(10), 2606
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Wills, J., Verma, J., Rees, B., Harte, D., Haxhiraj, C., Barnes, C., Barnes, R., Rodrigues, M., Doan, M., Filby, A., Hewitt, R., Thornton, C., Cronin, J., Kenny, J., Buckley, R., Lynch, A., Carpenter, A., Summers, H., Johnson, G., & Rees, P. (2021). Inter-laboratory automation of the in vitro micronucleus assay using imaging flow cytometry and deep learning. Archives of Toxicology, 95(9), 3101-3115.
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Wills, J., Halkes-Wellstead, E., Summers, H., Rees, P., & Johnson, G. (2021). Empirical comparison of genotoxic potency estimations: the in vitro DNA-damage ToxTracker endpoints versus the in vivo micronucleus assay. Mutagenesis, 36(4), 311-320.
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James, D., Filby, A., Brown, R., Summers, H., Francis, L., & Rees, P. (2021). Data Driven Cell Cycle Model to Quantify the Efficacy of Cancer Therapeutics Targeting Specific Cell-Cycle Phases From Flow Cytometry Results. Frontiers in Bioinformatics, 1
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Wills, J., Robertson, J., Summers, H., Miniter, M., Barnes, C., Hewitt, R., Keita, Å., Söderholm, J., Rees, P., & Powell, J. (2020). Image‐Based Cell Profiling Enables Quantitative Tissue Microscopy in Gastroenterology. Cytometry Part A, 97(12), 1222-1237.
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Doan, M., Case, M., Masic, D., Hennig, H., McQuin, C., Caicedo, J., Singh, S., Goodman, A., Wolkenhauer, O., Summers, H., Jamieson, D., Delft, F., Filby, A., Carpenter, A., Rees, P., & Irving, J. (2020). Label‐Free Leukemia Monitoring by Computer Vision. Cytometry Part A, 97(4), 407-414.
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Piasecka, J., Thornton, C., Rees, P., & Summers, H. (2020). Diffusion Mapping of Eosinophil‐Activation State. Cytometry Part A, 97(3), 253-258.
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Nassar, M., Doan, M., Filby, A., Wolkenhauer, O., Fogg, D., Piasecka, J., Thornton, C., Carpenter, A., Summers, H., Rees, P., & Hennig, H. (2019). Label‐Free Identification of White Blood Cells Using Machine Learning. Cytometry Part A
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Clark, C., Barnes, C., Duncan, M., Summers, H., & Stratton, G. (2019). Physical activity, motor competence and movement and gait quality: A principal component analysis. Human Movement Science, 68, 102523
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Rees, P., Wills, J., Brown, R., Barnes, C., & Summers, H. (2019). The origin of heterogeneous nanoparticle uptake by cells. Nature Communications, 10(1)
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Barnes, C., Clark, C., Rees, P., Stratton, G., & Summers, H. (2018). Objective profiling of varied human motion based on normative assessment of magnetometer time series data. Physiological Measurement, 39(4), 045007
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Verma, J., Harte, D., Shah, U., Summers, H., Thornton, C., Doak, S., Jenkins, G., Rees, P., Wills, J., & Johnson, G. (2018). Investigating FlowSight® imaging flow cytometry as a platform to assess chemically induced micronuclei using human lymphoblastoid cells in vitro. Mutagenesis, 33(4), 283-289.
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Mei, K., Ghazaryan, A., Teoh, E., Summers, H., Li, Y., Ballesteros, B., Piasecka, J., Walters, A., Hider, R., Mailänder, V., & Al-Jamal, K. (2018). Protein-Corona-by-Design in 2D: A Reliable Platform to Decode Bio-Nano Interactions for the Next-Generation Quality-by-Design Nanomedicines. Advanced Materials, 30(40), 1802732
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Clark, C., Barnes, C., Swindell, N., Holton, M., Bingham, D., Collings, P., Barber, S., Summers, H., Mackintosh, K., Stratton, G., Holton, M., Summers, H., Mackintosh, K., & Stratton, G. (2018). Profiling Movement and Gait Quality Characteristics in Pre-School Children. Journal of Motor Behavior, 50(5), 557-565.
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Clark, C., Barnes, C., Summers, H., Mackintosh, K., & Stratton, G. (2017). Profiling Movement Quality Characteristics of Children (9-11y) During Recess. European Journal of Human Movement, 39, 143-160.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa38121
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Summers, H., Rees, P., Wang, J., Al-Jamal, K., Rees, P., & Summers, H. (2017). Spatially-resolved profiling of carbon nanotube uptake across cell lines. Nanoscale, 9(20), 6800-6807.
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Wills, J., Summers, H., Hondow, N., Sooresh, A., Meissner, K., White, P., Rees, P., Brown, A., & Doak, S. (2017). Characterizing Nanoparticles in Biological Matrices: Tipping Points in Agglomeration State and Cellular Delivery In Vitro. ACS Nano, 11(12), 11986-12000.
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Barnes, C., Clark, C., Holton, M., Stratton, G., & Summers, H. (2017). Quantitative Time Profiling of Children's Activity and Motion. Medicine & Science in Sports & Exercise, 49(1), 183-190.
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Clark, C., Barnes, C., Stratton, G., McNarry, M., Mackintosh, K., & Summers, H. (2016). A Review of Emerging Analytical Techniques for Objective Physical Activity Measurement in Humans. Sports Medicine
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Summers, H., Ware, M., Majithia, R., Meissner, K., Godin, B., & Rees, P. (2016). Multiscale benchmarking of drug delivery vectors. Nanomedicine: Nanotechnology, Biology and Medicine, 12(7), 1843-1851.
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Clark, C., Barnes, C., Holton, M., Summers, H., & Stratton, G. (2016). Profiling movement quality and gait characteristics according to body-mass index in children (9–11 y). Human Movement Science, 49, 291-300.
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Hassan, H., Smyth, L., Rubio, N., Ratnasothy, K., Wang, J., Bansal, S., Summers, H., Diebold, S., Lombardi, G., & Al-Jamal, K. (2016). Carbon nanotubes' surface chemistry determines their potency as vaccine nanocarriers in vitro and in vivo. Journal of Controlled Release, 225, 205-216.
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HONDOW, N., BROWN, M., STARBORG, T., MONTEITH, A., BRYDSON, R., Summers, H., Rees, P., BROWN, A., & Brown, R. (2016). Quantifying the cellular uptake of semiconductor quantum dot nanoparticles by analytical electron microscopy. Journal of Microscopy, n/a-n/a.
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Blasi, T., Hennig, H., Summers, H., Theis, F., Cerveira, J., Patterson, J., Davies, D., Filby, A., Carpenter, A., & Rees, P. (2016). Label-free cell cycle analysis for high-throughput imaging flow cytometry. Nature Communications, 7
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McConnell, K., Shamsudeen, S., Meraz, I., Mahadevan, T., Ziemys, A., Rees, P., Summers, H., & Serda, R. (2016). Reduced Cationic Nanoparticle Cytotoxicity Based on Serum Masking of Surface Potential. Journal of Biomedical Nanotechnology, 12(1), 154-164.
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Summers, H., Wills, J., Brown, M., Rees, P., & Brown, R. (2015). Poisson-event-based analysis of cell proliferation. Cytometry Part A, n/a-n/a.
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Muñoz-Barrutia, A., Corr, S., Shamsudeen, S., Vergara, L., Ho, J., Ware, M., Keshishian, V., Yokoi, K., Savage, D., Meraz, I., Kaluarachchi, W., Cisneros, B., Raoof, M., Nguyen, D., Zhang, Y., Wilson, L., Summers, H., Rees, P., Curley, S., & Serda, R. (2015). A New Imaging Platform for Visualizing Biological Effects of Non-Invasive Radiofrequency Electric-Field Cancer Hyperthermia. PLOS ONE, 10(8), e0136382
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Ware, M., Tinger, S., Colbert, K., Corr, S., Rees, P., Koshkina, N., Curley, S., Summers, H., & Godin, B. (2015). Radiofrequency treatment alters cancer cell phenotype. Scientific Reports, 5(1)
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Summers, H., Wills, J., Brown, M., & Rees, P. (2015). Poisson-event-based analysis of cell proliferation. Cytometry Part A, 87(5), 385-392.
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Brown, M., Hondow, N., Brydson, R., Rees, P., Brown, A., & Summers, H. (2015). Statistical prediction of nanoparticle delivery: from culture media to cell. Nanotechnology, 26(15), 155101
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Brown, M., Hondow, N., Brydson, R., Rees, P., Brown, A., Summers, H., & Brown, R. (2015). Statistical prediction of nanoparticle delivery: from culture media to cell. Nanotechnology, 26(15), 155101
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Margulis, K., Srinivasan, S., Ware, M., Summers, H., Godin, B., Magdassi, S., & Summers, H. (2014). Active curcumin nanoparticles formed from a volatile microemulsion template. Journal of Materials Chemistry B, 2(24), 3745
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Davies, N., Holland, P., Brown, R., & Summers, H. (2014). Development of an Optically Transparent Silicon CMOS Technology Platform for Biological Analysis. IEEE Sensors Journal, 1-1.
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Tonkin, J., Serda, R., Brown, M., Summers, H., Shamsudeen, S., Rees, P., & Brown, R. (2014). Optical tracking of drug release from porous silicon delivery vectors. IET Optoelectronics, 8(2), 113-116.
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Hondow, N., Brown, A., Summers, H., Rowan Brown, M., Rees, P., Holton, M., Brydson, R., & Brown, R. (2014). Quantifying Nanoparticle–Cell Interactions. Microscopy and Microanalysis, 20(S3), 1300-1301.
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Rees, P., Wills, J., Brown, R., Tonkin, J., Holton, M., Hondow, N., Brown, A., Brydson, R., Millar, V., Carpenter, A., & Summers, H. (2014). Nanoparticle vesicle encoding for imaging and tracking cell populations. Nature Methods, 11(11), 1177-1181.
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Ware, M., Godin, B., Singh, N., Majithia, R., Shamsudeen, S., Serda, R., Meissner, K., Rees, P., & Summers, H. (2014). Analysis of the Influence of Cell Heterogeneity on Nanoparticle Dose Response. ACS Nano, 8(7), 6693-6700.
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Begum, J., Day, W., Henderson, C., Purewal, S., Cerveira, J., Summers, H., Rees, P., Davies, D., Filby, A., Rees, P., & Summers, H. (2013). A method for evaluating the use of fluorescent dyes to track proliferation in cell lines by dye dilution. Cytometry Part A, 83(12), 1085-1095.
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Summers, H., Brown, M., Holton, M., Tonkin, J., Hondow, N., Brown, A., Brydson, R., Rees, P., & Brown, R. (2013). Quantification of Nanoparticle Dose and Vesicular Inheritance in Proliferating Cells. ACS Nano, 7(7), 6129-6137.
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Hondow, N., Wang, P., Brydson, R., Holton, M., Rees, P., Summers, H., Brown, A., Rees, P., & Summers, H. (2012). TEM analysis of nanoparticle dispersions with application towards the quantification ofin vitrocellular uptake. Journal of Physics: Conference Series, 371, 012020
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Ferrati, S., Shamsudeen, S., Summers, H., Rees, P., Abbey, J., Schmulen, J., Liu, X., Wong, S., Bean, A., Ferrari, M., Serda, R., Rees, P., & Summers, H. (2012). Inter-endothelial Transport of Microvectors using Cellular Shuttles and Tunneling Nanotubes. Small, 8(20), 3151-3160.
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Summers, H. & Summers, H. (2012). Bionanoscience: Nanoparticles in the life of a cell. Nature Nanotechnology, 7(1), 9-10.
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Brown, R., Rees, P., & Summers, H. (2012). Quantitative characterization of nanoparticle agglomeration within biological media. Journal of Nanoparticle Research, 14(7)
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Brown, R., Rees, P., & Summers, H. (2012). Automated Cell Identification and Tracking Using Nanoparticle Moving-Light-Displays. PLoS ONE, 7(7), e40835
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Ferrati, S., Shamsudeen, S., Summers, H., Rees, P., Abbey, J., Schmulen, J., Liu, X., Wong, S., Bean, A., Ferrari, M., & Serda, R. (2012). Cellular Shuttles: Inter-endothelial Transport of Microvectors using Cellular Shuttles and Tunneling Nanotubes (Small 20/2012). Small, 8(20), 3065
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Brown, M., Curtis, D., Rees, P., Summers, H., Hawkins, K., Evans, P., Williams, P., Williams, R., Hawkins, K., Brown, R., Rees, P., Summers, H., Curtis, D., & Evans, A. (2012). Fractal discrimination of random fractal aggregates and its application in biomarker analysis for blood coagulation. Chaos, Solitons & Fractals, 45(8), 1025-1032.
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Brown, R., Rees, P., & Summers, H. (2011). Statistical analysis of nanoparticle dosing in a dynamic cellular system. Nature Nanotechnology
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Brown, R., Rees, P., & Summers, H. (2011). A transfer function approach to measuring cell inheritance. BMC Systems Biology
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Filby, A., Perucha, E., Summers, H., Rees, P., Chana, P., Heck, S., Lord, G., & Davies, D. (2011). An imaging flow cytometric method for measuring cell division history and molecular symmetry during mitosis. Cytometry Part A, 79A(7), 496-506.
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Naidu, D., Smowton, P., Summers, H., & Summers, H. (2010). The measured dependence of the lateral ambipolar diffusion length on carrier injection-level in Stranski-Krastanov quantum dot devices. Journal of Applied Physics, 108(4), 043108
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Summers, H. & Summers, H. (2010). Can cells reduce nanoparticle toxicity?. Nano Today, 5(2), 83-84.
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Wu, J., Summers, H., & Summers, H. (2010). An efficient approach to characterizing and calculating carrier loss due to heating and barrier height variation in vertical-cavity surface-emitting lasers. Chinese Physics B, 19(1), 014213-6.
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Williams, P., Rees, P., & Summers, H. (2010). Analysis of quantum dot fluorescence stability in primary blood mononuclear cells. Cytometry Part A
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Brown, R., Rees, P., & Summers, H. (2010). Flow-Based Cytometric Analysis of Cell Cycle via Simulated Cell Populations. PLoS Computational Biology
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Brown, M., Summers, H., Rees, P., Chappell, S., Silvestre, O., Khan, I., Smith, P., Errington, R., & Brown, R. (2010). Long-term time series analysis of quantum dot encoded cells by deconvolution of the autofluorescence signal. Cytometry Part A, 77A(10), 925-932.
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Rees, P., Brown, R., & Summers, H. (2010). Single cell nanoparticle tracking to model cell cycle dynamics and compartmental inheritance. Cell Cycle, 9(1)
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Liu, H., Smowton, P., Summers, H., Edwards, G., & Drexler, W. (2009). Self-pulsing 1050 nm quantum dot edge emitting laser diodes. Applied Physics Letters, 95(10), 101111
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Holton, M., Silvestre, O., Errington, R., Smith, P., Matthews, D., Rees, P., & Summers, H. (2009). Stroboscopic fluorescence lifetime imaging. Optics Express, 17(7), 5205-5216.
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Summers, H. (2009). Fluorescence lifetime based contrast imaging using variable period excitation pulse trains.
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Wu, J., Summers, H., & Summers, H. (2009). Analytical modelling of end thermal coupling in a solid-state laser longitudinally bonded by a vertical-cavity top-emitting laser diode. Chinese Physics B, 18(11), 4912-4918.
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Summers, H. (2008). Cell-population tracking using quantum dots in flow cytometry.
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Summers, H., Rees, P., Matthews, D., Edwards, G., Brown, M., Cundin, M., Dominguez, J., Lewis, G., Brown, R., Rees, P., & Summers, H. (2007). The Influence of the Gain—Carrier Density Characteristic on <formula formulatype="inline"><tex>$Q$</tex></formula>-Switching in Quantum-Dot Lasers. IEEE Journal of Selected Topics in Quantum Electronics, 13(5), 1222-1226.
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Matthews, D., Summers, H., Njoh, K., Chappell, S., Errington, R., Smith, P., & Summers, H. (2007). Optical antenna arrays in the visible range. Optics Express, 15(6), 3478
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Blood, P., Pask, H., Summers, H., Sandall, I., & Summers, H. (2007). Localized Auger Recombination in Quantum-Dot Lasers. IEEE Journal of Quantum Electronics, 43(12), 1140-1146.
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Chong, E., Matthews, D., Summers, H., Njoh, K., Errington, R., Smith, P., & Summers, H. (2007). Development of FRET-Based Assays in the Far-Red Using CdTe Quantum Dots. Journal of Biomedicine and Biotechnology, 2007, 1-7.
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Brown, M., Rees, P., Wilks, S., Holton, M., Dunstan, P., Summers, H., Chong, Z., Brown, R., Rees, P., & Summers, H. (2007). Calculation of quantum-dot blinking using the Gillespie Monte Carlo algorithm. IET Optoelectronics, 1(6), 280-283.
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Summers, H. & Rees, P. (2007). Derivation of a modified Fermi-Dirac distribution for quantum dot ensembles under nonthermal conditions. Journal of Applied Physics, 101(7), 073106
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Matthews, D., Summers, H., Njoh, K., Errington, R., Smith, P., Barber, P., Ameer-Beg, S., Vojnovic, B., & Summers, H. (2006). Technique for measurement of fluorescence lifetime by use of stroboscopic excitation and continuous-wave detection. Applied Optics, 45(9), 2115
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Porta, P., Harries, M., Summers, H., & Summers, H. (2006). Surface plasmon mediated emission in resonant-cavity light-emitting diodes. Applied Physics Letters, 89(12), 121120
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Harries, M., Summers, H., & Summers, H. (2006). Directional Control of Light-Emitting-Diode Emission Via a Subwavelength-Apertured Metal Surface. IEEE Photonics Technology Letters, 18(21), 2197-2199.
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Porta, P., Summers, H., & Summers, H. (2005). Vertical-cavity semiconductor devices for fluorescence spectroscopy in biochips and microfluidic platforms. Journal of Biomedical Optics, 10(3), 034001
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Summers, H., Porta, P., & Summers, H. (2005). Resonant-cavity optoelectronic devices for fluorimetry. IEEE Journal of Selected Topics in Quantum Electronics, 11(4), 854-857.
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Pask, H., Summers, H., Blood, P., & Summers, H. (2005). Light-current characteristics of quantum dots with localized recombination. Applied Physics Letters, 87(8), 083109
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Matthews, D., Summers, H., Smowton, P., Blood, P., Rees, P., Hopkinson, M., Rees, P., & Summers, H. (2005). Dynamics of the wetting-Layer-quantum-dot interaction in InGaAs self-assembled systems. IEEE Journal of Quantum Electronics, 41(3), 344-350.
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Porta, P., Summers, H., & Summers, H. (2004). Vertical-cavity semiconductor devices for generation and detection of fluorescence emission on a single chip. Applied Physics Letters, 85(11), 1889
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Summers, H., Matthews, D., Smowton, P., Rees, P., Hopkinson, M., Rees, P., & Summers, H. (2004). Laser dynamics in self-pulsating quantum dot systems. Journal of Applied Physics, 95(3), 1036
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Owen, A., Rees, P., Pierce, I., Matthews, D., Summers, H., Rees, P., & Summers, H. (2003). Theory of Q-switching in a quantum-dot laser diode. IEE Proceedings - Optoelectronics, 150(2), 152-158.
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Pierce, I., Summers, H., Rees, P., Jones, D., Rees, P., & Summers, H. (2003). Multi-mode self-pulsation in laser diodes with epitaxially integrated saturable absorbers: mode competition and carrier dynamics. IEE Proceedings - Optoelectronics, 150(2), 159-162.
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Blood, P., Lewis, G., Smowton, P., Summers, H., Thomson, J., Lutti, J., & Summers, H. (2003). Characterization of semiconductor laser gain media by the segmented contact method. IEEE Journal of Selected Topics in Quantum Electronics, 9(5), 1275-1282.
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Lewis, G., Smowton, P., Thomson, J., Summers, H., Blood, P., & Summers, H. (2002). Measurement of true spontaneous emission spectra from the facet of diode laser structures. Applied Physics Letters, 80(1), 1
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Matthews, D., Summers, H., Smowton, P., Hopkinson, M., & Summers, H. (2002). Experimental investigation of the effect of wetting-layer states on the gain–current characteristic of quantum-dot lasers. Applied Physics Letters, 81(26), 4904
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Summers, H., Thomson, J., Smowton, P., Blood, P., Hopkinson, M., & Summers, H. (2001). Thermodynamic balance in quantum dot lasers. Semiconductor Science and Technology, 16(3), 140-143.
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Thomson, J., Summers, H., Smowton, P., Herrmann, E., Blood, P., Hopkinson, M., & Summers, H. (2001). Temperature dependence of the lasing wavelength of InGaAs quantum dot lasers. Journal of Applied Physics, 90(9), 4859
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Summers, H., Smowton, P., Blood, P., Dineen, M., Perks, R., Bour, D., Kneissel, M., & Summers, H. (2001). Spatially and spectrally resolved measurement of optical loss in InGaN laser structures. Journal of Crystal Growth, 230(3-4), 517-521.
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Jones, D., Rees, P., Pierce, I., Summers, H., Rees, P., & Summers, H. (2001). Power output of 650-nm self-pulsating AlGaInP laser diodes for optical storage applications. IEEE Journal of Quantum Electronics, 37(12), 1632-1635.
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Smowton, P., Herrmann, E., Ning, Y., Summers, H., Blood, P., Hopkinson, M., & Summers, H. (2001). Optical mode loss and gain of multiple-layer quantum-dot lasers. Applied Physics Letters, 78(18), 2629
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Wu, J., Iordache, G., Summers, H., Roberts, J., & Summers, H. (2001). Optical characteristics of VCSEL pumped microchip lasers. Optics Communications, 196(1-6), 251-256.
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Ivanov, A., Summers, H., Smowton, P., Blood, P., & Summers, H. (2001). Long-Range Interface-Photon-Mediated Interactions between Self-Assembled Quantum Dots. physica status solidi (b), 224(3), 781-786.
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Jones, D., Rees, P., Pierce, I., Summers, H., Rees, P., & Summers, H. (2001). Investigation of changes in absorber position in the 650 nm AlGaInP self-pulsating laser for optical storage applications. IEE Proceedings - Optoelectronics, 148(1), 65-68.
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Summers, H., Wu, J., Roberts, J., & Summers, H. (2001). Experimental investigation of thermally induced power saturation in vertical-cavity surface-emitting lasers. IEE Proceedings - Optoelectronics, 148(5), 261-265.
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Herrmann, E., Smowton, P., Summers, H., Thomson, J., Hopkinson, M., & Summers, H. (2000). Modal gain and internal optical mode loss of a quantum dot laser. , 77SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25398
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Jones, D., Rees, P., Pierce, I., Summers, H., Rees, P., & Summers, H. (1999). Theoretical optimization of self-pulsating 650-nm-wavelength AlGaInP laser diodes. IEEE Journal of Selected Topics in Quantum Electronics, 5(3), 740-744.
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Smowton, P., Johnston, E., Dewar, S., Hulyer, P., Summers, H., Patanè, A., Polimeni, A., Henini, M., & Summers, H. (1999). Spectral analysis of InGaAs/GaAs quantum-dot lasers. , 75SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25403
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Summers, H., Molloy, C., Smowton, P., Rees, P., Pierce, I., Jones, D., Rees, P., & Summers, H. (1999). Experimental analysis of self-pulsation 650-nm-wavelength AlGaInP laser diodes with epitaxial absorbing layers. IEEE Journal of Selected Topics in Quantum Electronics, 5(3), 745-749.
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Thomson, J., Summers, H., Hulyer, P., Smowton, P., Blood, P., & Summers, H. (1999). Determination of single-pass optical gain and internal loss using a multisection device. , 75SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25405
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Smowton, P., Lewis, G., Yin, M., Summers, H., Berry, G., Button, C., & Summers, H. (1999). 650-nm lasers with narrow far-field divergence with integrated optical mode expansion layers. IEEE Journal of Selected Topics in Quantum Electronics, 5(3), 735-739.
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Summers, H., Berry, G., Lewis, G., Blood, P., & Summers, H. (1998). Spontaneous emission control in quantum well laser diodes. , 2SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25408
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Summers, H., Rees, P., Rees, P., & Summers, H. (1998). High-temperature operation of 650-nm wavelength AlGaInP self-pulsating laser diodes. IEEE Photonics Technology Letters, 10(9), 1217-1219.
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Summers, H., Rees, P., Rees, P., & Summers, H. (1997). Thermal limitation of self-pulsation in 650 nm AlGaInP laser diodes with an epitaxially integrated absorber. Applied Physics Letters, 71(18), 2665-2667.
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Zhu, B., White, I., Penty, R., Wonfor, A., Lach, E., Summers, H., & Summers, H. (1997). Theoretical analysis of timing jitter in monolithic multisection mode-locked DBR laser diodes. IEEE Journal of Quantum Electronics, 33(7), 1216-1220.
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Raddatz, L., White, I., Summers, H., Hahn, K., Tan, M., Wang, S., & Summers, H. (1996). Measurement of guiding effects in vertical-cavity surface-emitting lasers. IEEE Photonics Technology Letters, 8(6), 743-745.
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Summers, H., Rees, P., Rees, P., & Summers, H. (1996). Experimental investigation of the differential gain in semiconductor lasers and its influence on Q‐switching performance. Applied Physics Letters, 69(14), 2009-2011.
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Dowd, P., Summers, H., White, I., Tan, M., Houng, Y., Wang, S., & Summers, H. (1995). Measurement of differential gain and linewidth enhancement factor of InGaAs vertical cavity surface emitting laser. Electronics Letters, 31(7), 557-559.
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Summers, H., Dowd, P., White, I., Tan, M., & Summers, H. (1995). Calculation of differential gain and linewidth enhancement factor in 980-nm InGaAs vertical cavity surface-emitting lasers. IEEE Photonics Technology Letters, 7(7), 736-738.
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Smowton, P., Summers, H., Rees, P., Blood, P., Rees, P., & Summers, H. (1994). Threshold current of 670-nm AlGaInP strained quantum well lasers. IEEE Photonics Technology Letters, 6(8), 910-912.
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Summers, H., Blood, P., & Summers, H. (1994). Strain effects in (AlyGa1-y)xIn1-xP lasers operating at fixed threshold gain. Electronics Letters, 30(3), 236-238.
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Smowton, P., Summers, H., Rees, P., Blood, P., Rees, P., & Summers, H. (1994). Optimisation of 670 nm strained-quantum-well laser diodes for high-temperature operation. IEE Proceedings - Optoelectronics, 141(2), 136-140.
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Summers, H., White, I., & Summers, H. (1994). Measurement of the static and dynamic linewidth enhancement factor in strained 1.55 µm InGaAsP lasers. Electronics Letters, 30(14), 1140-1141.
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Summers, H., Blood, P., & Summers, H. (1993). Room temperature operation of ultrashort wavelength (619nm) AlGaInP/GaInP tensile strained quantum well lasers. , 29SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25428
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Summers, H., Blood, P., Rees, P., Rees, P., & Summers, H. (1993). Gain-current characteristics of strained AlGaInP quantum well lasers. Applied Physics Letters, 63(20), 2792
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Rees, P., Summers, H., Blood, P., Rees, P., & Summers, H. (1991). Gain-current calculations for bulk GaInP lasers including many-body effects. Applied Physics Letters, 59(27), 3521
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Rees, P., Summers, H., Filby, A., Carpenter, A., & Doan, M. (n.d.) Imaging flow cytometry. Nature Reviews Methods Primers, 2(1)
Authored Books
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Summers, H. & Summers, H. (2013). Nanomedicine
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Summers, H. & Summers, H. (2013). Nanomedicine
Book Chapters
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Brown, M., Rees, P., Wilks, S., Summers, H., Errington, R., Njoh, K., Chappell, S., Smith, P., Leary, J., & Brown, R. (2007). Computational Simulation of Optical Tracking of Cell Populations Using Quantum Dot Fluorophores. Computational Methods in Systems Biology (pp. 96
Conference Contributions
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Michell, G., Smowton, P., Summers, H., & Summers, H. (2010). Manipulation of optical modes in quantum dot laser diodes by selective oxidation of high aluminum content AlGaAs layers.
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Naidu, D., Smowton, P., Summers, H., & Summers, H. (2010). Carrier injection-level dependence of lateral ambipolar diffusion in S-K quantum-dot lasers.
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Liu, H., Smowton, P., Edwards, G., Drexler, W., Summers, H., & Summers, H. (2009). Self pulsing quantum dot lasers for optical coherence tomography.
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Grafton, M., Reece, L., Irazoqui, P., Jung, B., Summers, H., Bashir, R., Leary, J., & Summers, H. (2008). Design of a multi-stage microfluidics system for high-speed flow cytometry and closed system cell sorting for cytomics.
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Summers, H., Errington, R., Smith, P., Matthews, D., Leary, J., & Summers, H. (2008). Cytometric biochips with optically active surfaces for spatial engineering of fluorescence excitation.
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Summers, H., Matthews, D., Errington, R., Njoh, K., Smith, P., Goater, A., Burt, J., Rizvi, N., Menachery, A., Morris, D., & Summers, H. (2007). Semiconductor light-emitting devices with in-built bioreaction chambers.
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Naidu, D., Mexis, M., Sobiesierski, A., Smowton, P., Summers, H., Mowbray, D., Liu, H., Hopkinson, M., & Summers, H. (2007). Role of device structure on the performance of quantum dot lasers.
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Blood, P., Pask, H., Sandall, I., Summers, H., & Summers, H. (2007). Recombination in quantum dot ensembles.
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Njoh, K., Smith, P., Chappell, S., Summers, H., Matthews, D., Morris, D., Goater, A., Burt, J., Pope, I., Vojnovic, B., Ameer-Beg, S., Errington, R., & Summers, H. (2007). Live cell tracking on an optical biochip platform.
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Goater, A., Burt, J., Morris, D., Menachery, A., Rizvi, N., Matthews, D., Summers, H., & Summers, H. (2007). Laser micromachining of optical biochips.
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Chong, E., Matthews, D., Summers, H., Njoh, K., Errington, R., Smith, P., & Summers, H. (2007). Investigation of quantum dot FRET in the far-red spectral region.
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Morris, D., Goater, A., Menachery, A., Burt, J., Rizvi, N., Matthews, D., Summers, H., Pope, I., Vojnovic, B., Njoh, K., Chappell, S., Errington, R., Smith, P., & Summers, H. (2007). Development of an optical biochip for the analysis of cell environment sensitivity.
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Summers, H., Matthews, D., Njoh, K., Errington, R., & Summers, H. (2007). Beam-steering at optical frequencies using metal-grating antennas.
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Matthews, D., Summers, H., Njoh, K., Chappell, S., Errington, R., Smith, P., Pope, I., Vojnovic, B., Ameer-Beg, S., & Summers, H. (2007). A plasmon-controlled fluorescence biochip.
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Matthews, D., Summers, H., Njoh, K., Chappell, S., Errington, R., Smith, P., Pope, I., Barber, P., Vojnovic, B., Ameer-Beg, S., & Summers, H. (2007). A fluorescence biochip with a plasmon active surface.
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Porta, P., Summers, H., & Summers, H. (2006). Surface plasmon mediated emission from resonant-cavity LEDs.
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Matthews, D., Summers, H., Njoh, K., Chappell, S., Errington, R., Smith, P., & Summers, H. (2006). Surface plasmon control of excitation and fluorescence in optical biochips.
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Njoh, K., Patterson, L., Pors, K., Zloh, M., Ameer-Beg, S., Summers, H., Matthews, D., Errington, R., Smith, P., & Summers, H. (2006). Screening far red probes for use on optical biochip devices.
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Blood, P., Pask, H., Summers, H., & Summers, H. (2006). Random population and localised recombination in quantum dot structures.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25350
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Sandall, I., Pask, H., Smowton, P., Summers, H., Blood, P., Liu, H., Hopkinson, M., & Summers, H. (2006). Localised recombination in quantum dot structures.
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Pask, H., Summers, H., Blood, P., & Summers, H. (2006). Localised recombination and gain in quantum dots.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25352
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Harries, M., Summers, H., & Summers, H. (2006). LED emission through sub-wavelength apertures.
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Summers, H., Pask, H., Blood, P., & Summers, H. (2006). Analysis of localized recombination in quantum dots.
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Matthews, D., Summers, H., Njoh, K., Errington, R., Smith, P., Ameer-Beg, S., Vojnovic, B., & Summers, H. (2005). Time-resolved fluorescence measurements using stroboscopic excitation.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25357
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Matthews, D., Summers, H., Njoh, K., Errington, R., Smith, P., Ameer-Beg, S., Vojnovic, B., & Summers, H. (2005). Time-resolved fluorescence measurements using self-pulsing 650-nm laser diodes.
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Pask, H., Summers, H., Blood, P., & Summers, H. (2005). Localised recombination in quantum dots. In physica status solidi (c) (pp. 3860-3863).
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Porta, P., Summers, H., & Summers, H. (2004). Vertical-cavity semiconductor devices for fluorescence spectroscopy.
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Matthews, D., Edwards, G., Summers, H., Smowton, P., & Summers, H. (2004). Saturable absorber characteristics in quantum dot lasers.
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Matthews, D., Summers, H., & Summers, H. (2004). GalnP-650nm self-pulsing laser diodes for fluorescence lifetime measurements.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25367
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Smowton, P., Pearce, E., Lutti, J., Matthews, D., Summers, H., Lewis, G., Blood, P., Hopkinson, M., Krysa, A., & Summers, H. (2004). Carrier distribution, spontaneous emission and gain in self assembled quantum dot lasers.
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Pearce, E., Smowton, P., Summers, H., Hopkinson, M., & Summers, H. (2003). A comparison of the overall radiative efficiency of DWELL, standard QD and QW laser structures.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25372
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Smowton, P., Lewis, G., Summers, H., Thomson, J., Blood, P., & Summers, H. (2002). Spontaneous emission measurements of tensile strained GaInP laser diodes.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25373
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Matthews, D., Summers, H., Smowton, P., Hopkinson, M., & Summers, H. (2002). Self-sustained Q-switching in InGaAs quantum dot lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25374
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Matthews, D., Summers, H., Smowton, P., Hopkinson, M., & Summers, H. (2002). Differential-gain damping in quantum dot lasers due to wetting layer states.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25377
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Wu, J., Summers, H., Iordache, G., & Summers, H. (2001). VCSEL pumped, planar cavity, low threshold Nd:YVO4 microchip lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25378
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Lewis, G., Thomson, J., Smowton, P., Summers, H., Blood, P., & Summers, H. (2001). Thermodynamic balance in the modelling of quantum well lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25379
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Herrmann, E., Smowton, P., Ning, Y., Summers, H., Blood, P., Hopkinson, M., & Summers, H. (2001). Optical mode loss and gain of multiple layer quantum dot lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25385
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Ren, G., Summers, H., Blood, P., Perks, R., Bour, D., & Summers, H. (2001). Non-radiative recombination and efficiency of InGaN quantum well light emitting diodes.
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Lewis, G., Smowton, P., Thomson, J., Summers, H., Blood, P., & Summers, H. (2001). Measurement of spontaneous emission spectra of diode laser structures.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25388
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Smowton, P., Chow, W., Lewis, G., Blood, P., Summers, H., Thomson, J., & Summers, H. (2001). Comparison of experimental and theoretical optical properties of GaInP lasers.
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Thomson, J., Summers, H., Matthews, D., Smowton, P., Blood, P., & Summers, H. (2000). Thermodynamic relation between optical gain and spontaneous emission in GaInP quantum well lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25393
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Summers, H., Thomson, J., Smowton, P., Herrmann, E., Blood, P., Hopkinson, M., & Summers, H. (2000). Thermodynamic relation between optical emission and absorption processes in quantum dot lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25394
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Thomson, J., Herrmann, E., Summers, H., Smowton, P., Hopkinson, M., & Summers, H. (2000). Temperature insensitive quantum dot structures for vertical cavity lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25395
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Thomson, J., Summers, H., Smowton, P., Herrmann, E., Blood, P., & Hopkinson, M. (2000). Temperature dependence of the wavelength of quantum dot lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25396
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Thomson, J., Summers, H., Hulyer, P., Smowton, P., Blood, P., & Summers, H. (2000). Measurement of optical gain and Fermi level separation in semiconductor structures.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25399
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Thomson, J., Smowton, P., Summers, H., Herrmann, E., Blood, P., & Hopkinson, M. (2000). Intrinsic performance of InGaAs/GaAs quantum dot lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25400
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Summers, H., Wu, J., Roberts, J., & Summers, H. (2000). Experimental analysis of gain detuning and thermal roll-over in AlInGaAs/AlGaAs vertical-cavity, surface-emitting laser diodes.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25401
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Pierce, I., Rees, P., Jones, D., & Summers, H. (2000). Multi-mode self-pulsation in laser diodes with epitaxially integrated saturable absorber. In Conference on Lasers and Electro-Optics Europe - Technical DigestConference on Lasers and Electro-Optics Europe - Technical Digest (CLEO).SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25397
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Berry, G., Lewis, G., Summers, H., Blood, P., Roberts, J., & Summers, H. (1998). Theoretical and experimental analysis of the spontaneous emission and threshold current of edge-emitting Bragg microcavity laser structures.
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Berry, G., Summers, H., Blood, P., Claisse, P., & Lebby, M. (1998). Optical bi-stability in vertical cavity surface emitting lasers with a simple intra-cavity epitaxial absorber layer.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25409
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Smowton, P., Summers, H., Berry, G., Blood, P., Button, C., & Summers, H. (1998). 650 nm lasers with narrow far-field divergence.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25412
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Summers, H., Molloy, C., Smowton, P., Rees, P., Pierce, I., Jones, D., Rees, P., & Summers, H. (1998). High temperature self-pulsation in 650 nm wavelength, AlGaInP lasers with an epitaxially integrated saturable absorber. In IEEE 16th International Semiconductor Laser Conference (pp. 145-146). IEEE 16th International Semiconductor Laser Conference.
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Zhu, B., Summers, H., White, I., Penty, R., & Summers, H. (1996). Numerical modelling of dynamic response of loss modulated monolithic multisection mode-locked semiconductor lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25415
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Williams, K., Summers, H., Rahman, M., Muller, J., Laughton, F., White, I., Penty, R., Jiang, Z., Sarma, J., Middlemast, I., Ralston, J., & Summers, H. (1995). Monolithic passive mode-locking in single contact tapered lasers.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25418
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Summers, H., White, I., Rees, P., Blood, P., Rees, P., & Summers, H. (1994). Reduction of linewidth enhancement factor in strained 1.55-μm InGaAsP lasers. In Conference on Lasers and Electro-Optics Europe - Technical DigestConference on Lasers and Electro-Optics Europe - Technical Digest.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25423
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Summers, H., Mogensen, P., Rees, P., Blood, P., Rees, P., & Summers, H. (1994). Recombination mechanisms and optical losses in strained layer, (AlyGa1-y)xIn1-xP lasers. In Lasers and Electro-Optics Society Annual MeetingLasers and Electro-Optics Society Annual Meeting.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25424
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Smowton, P., Summers, H., Rees, P., & Blood, P. (1994). Optimization of 670-nm strained quantum well laser diodes. In SPIE - The International Society for Optical EngineeringSPIE - The International Society for Optical Engineering.SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25425
Supervision
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The application of advanced data analytics techniques to understand differences in performance between on-water and ergometer rowing (current)
PhDOther supervisor: Prof Neil Bezodis
Taught Modules
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EGA226 Physiological systems
This course will consider human physiology from an Engineering standpoint, concentrating on the system architecture of major physiological components within the body, e.g. cardiovascular, nervous, muscular and respiratory systems. Emphasis will be place on the system level output and the control mechanisms required to maintain body homeostasis. A major practical element will run alongside the presentation of taught material. The Simulink programming environment will be used to: i. Model the behaviour and control of generalised systems and; ii. Simulate the function of specific biological systems relating to human physiology. Course elements: ¿ Introduction to basic systems - definition, components and architecture, emergent phenomenon ¿ Introduction to control theory - feedback, error monitoring, proportional control, dynamic systems ¿ Translation of systems control theory and models to human physiology ¿ Detailed modelling and simulation of specific physiological systems
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SR-M13 Principles of Measurement and Data Analysis
The aim of this module is to introduce the science of measurement and explain the potential and the limitations of sensors commonly used in performance sports applications. Throughout the module, foundational principles will be explained using sporting examples of data analysis, with a particular focus on time-series data. A core principle of the module is that the process of measurement must be understood before applied studies are designed and data analysis is undertaken. The limits to measurement and the errors that can exist in a dataset have to be appreciated in the context of performance sport applications. The origin of the data also has to be considered as there are often hidden assumptions influencing its acquisition and pre-processing built into sensors. The aim here is to educate students about where their data comes from and to encourage them to critically assess the conditions under which valid measurements can be obtained in applied performance environments.