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Impedimetric Characterization of Bipolar Nanoelectrodes with Cancer Cells (2021)
Journal Article
Robinson, A. J., Jain, A., Rahman, R., Abayzeed, S., Hague, R. J., & Rawson, F. J. (2021). Impedimetric Characterization of Bipolar Nanoelectrodes with Cancer Cells. ACS Omega, 6(44), 29495-29505. https://doi.org/10.1021/acsomega.1c03547

Merging of electronics with biology, defined as bioelectronics, at the nanoscale holds considerable promise for sensing and modulating cellular behavior. Advancing our understanding of nanobioelectronics will facilitate development and enable applica... Read More about Impedimetric Characterization of Bipolar Nanoelectrodes with Cancer Cells.

Plasmonic-based impedance microspectroscopy of optically heterogeneous samples (2020)
Journal Article
Abayzeed, S. A. (2020). Plasmonic-based impedance microspectroscopy of optically heterogeneous samples. Biomedical Optics Express, 11(11), 6168-6180. https://doi.org/10.1364/boe.395474

A robust impedance microscopy technique is presented. This optical tool enables high resolution imaging of electrical properties with promising biophysical applications. The underlying principle is that surface plasmon resonance (SPR) sensors are abl... Read More about Plasmonic-based impedance microspectroscopy of optically heterogeneous samples.

Surface plasmon resonance imaging of excitable cells (2019)
Journal Article
Howe, C. L., Webb, K. F., Abayzeed, S. A., Anderson, D. J., Denning, C., & Russell, N. A. (2019). Surface plasmon resonance imaging of excitable cells. Journal of Physics D: Applied Physics, 52(10), Article 104001. https://doi.org/10.1088/1361-6463/aaf849

Surface plasmons (SPs) are surface charge density oscillations occuring at a metal/dieletric interface and are highly sensitive to refractive index variations adjacent to the surface. This sensitivity has been exploited successfully for chemical and... Read More about Surface plasmon resonance imaging of excitable cells.

Analysis of noise in differential and ratiometric biosensing systems (2018)
Journal Article
Abayzeed, S., Smith, R. J., See, C. W., & Somekh, M. G. (2018). Analysis of noise in differential and ratiometric biosensing systems. Sensors and Actuators B: Chemical, 260, 1059-1067. https://doi.org/10.1016/j.snb.2018.01.004

This paper presents formulations to evaluate noise in differential and ratiometric measurements that are often performed in biosensing. These measurements are performed to improve signal to noise ratio of the sensing systems for sensitive detection o... Read More about Analysis of noise in differential and ratiometric biosensing systems.

Sensitive detection of voltage transients using differential intensity surface plasmon resonance system (2017)
Journal Article
Abayzeed, S. A., Smith, R. J., Webb, K. F., Somekh, M. G., & See, C. W. (in press). Sensitive detection of voltage transients using differential intensity surface plasmon resonance system. Optics Express, 25(25), https://doi.org/10.1364/OE.25.031552

This paper describes theoretical and experimental study of the fundamentals of using surface plasmon resonance (SPR) for label-free detection of voltage. Plasmonic voltage sensing relies on the capacitive properties of metal-electrolyte interface tha... Read More about Sensitive detection of voltage transients using differential intensity surface plasmon resonance system.