New method of SERS-active gold surfaces fabrication for bacterial cells Raman analysis

Andrey Y. Zyubin; Karina I. Matveeva; I. I. Kon; D. S. Kalinnikov; M. A. Shevchenko; Ilia G. Samusev

doi:10.1117/12.2555895

1 April 2020 New method of SERS-active gold surfaces fabrication for bacterial cells Raman analysis

Andrey Y. Zyubin, Karina I. Matveeva, I. I. Kon, D. S. Kalinnikov, M. A. Shevchenko, Ilia G. Samusev

Proceedings Volume 11345, Nanophotonics VIII; 113452I (2020) https://doi.org/10.1117/12.2555895
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Paper performs results of SERS-active surfaces fabrication for Raman bacterial cells analysis. Based on FDTD simulation, the synthesis of colloidal gold nanoparticles (NPs) with the size range of 10 – 100 nm has been performed by the following methods: a) femtosecond laser ablation of a plate in a liquid; b) chemical reduction from tetrachloroauric acid trihydrate (HAuCl₄). Optimal sizes and shapes of the particles with a maximum of plasmon absorption in the range 500 – 800 nm have been determined by numerical simulation. For NPs deposited on quartz glass with rodamine 6G (R6G) and E. Coli bacterial cells, SERS solutions have been tested.

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Andrey Y. Zyubin, Karina I. Matveeva, I. I. Kon, D. S. Kalinnikov, M. A. Shevchenko, and Ilia G. Samusev "New method of SERS-active gold surfaces fabrication for bacterial cells Raman analysis", Proc. SPIE 11345, Nanophotonics VIII, 113452I (1 April 2020); https://doi.org/10.1117/12.2555895

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