Layer-by-layer polyelectrolyte coating for surface-enhanced Raman scattering on gold nanostars inside hollow core photonic crystal fibers

Natalia A. Burmistrova; Sergei D. Bondarenko; Daniil N. Bratashov; Andrei A. Shuvalov; Anastasiya A. Chibrova; Boris N. Khlebtsov; Julia S. Skibina; Irina Y. Goryacheva

doi:10.1117/12.2311437

26 April 2018 Layer-by-layer polyelectrolyte coating for surface-enhanced Raman scattering on gold nanostars inside hollow core photonic crystal fibers

Natalia A. Burmistrova, Sergei D. Bondarenko, Daniil N. Bratashov, Andrei A. Shuvalov, Anastasiya A. Chibrova, Boris N. Khlebtsov, Julia S. Skibina, Irina Y. Goryacheva

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Proceedings Volume 10716, Saratov Fall Meeting 2017: Optical Technologies in Biophysics and Medicine XIX; 107161D (2018) https://doi.org/10.1117/12.2311437
Event: Saratov Fall Meeting 2017, 2017, Saratov, Russian Federation

Abstract

Photonic crystal fibers with hollow core (HC PCFs) are a specific class of optical fibers characterized by microstructure with periodic holes oriented along fiber. The combination of HC PCF with Raman spectroscopy for biosensors creation is attractive in the terms of the low sample volume, the possibility to increase the integration time without sample degradation and maintaining constant focus during experiments. Here we propose layer-by-layer polyelectrolyte coating of HC PCF inner surface in order to obtain charge-selective absorption of analyte, stabilization of Surface-Enhanced Raman scattering (SERS)-active gold nanoparticles. Distance between SERS hotspots and glass reduces nonlinear signals from glass, and increases signal-to-noise ratio of SERS spectra.

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Natalia A. Burmistrova, Sergei D. Bondarenko, Daniil N. Bratashov, Andrei A. Shuvalov, Anastasiya A. Chibrova, Boris N. Khlebtsov, Julia S. Skibina, and Irina Y. Goryacheva "Layer-by-layer polyelectrolyte coating for surface-enhanced Raman scattering on gold nanostars inside hollow core photonic crystal fibers", Proc. SPIE 10716, Saratov Fall Meeting 2017: Optical Technologies in Biophysics and Medicine XIX, 107161D (26 April 2018); https://doi.org/10.1117/12.2311437

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KEYWORDS

Gold

Glasses

Surface enhanced Raman spectroscopy

Coating

Photonic crystal fibers

Polymers

Raman scattering

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