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Porosity‐Controlled Eggshell Membrane as 3D SERS‐Active Substrate
Author(s) -
Lin PeiYing,
Hsieh ChiungWen,
Tsai PeiChuan,
Hsieh Shuchen
Publication year - 2014
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201301222
Subject(s) - eggshell membrane , porosity , ascorbic acid , hydrogen peroxide , substrate (aquarium) , membrane , materials science , chemical engineering , raman scattering , silver nanoparticle , raman spectroscopy , nanoparticle , nanotechnology , chemistry , composite material , organic chemistry , biochemistry , oceanography , food science , physics , optics , engineering , geology
We report on the fabrication of a surface‐enhanced Raman scattering (SERS) platform, comprised of a three‐dimensional (3D) porous eggshell membrane (ESM) scaffold decorated with Ag nanoparticles (NPs). Both native and treated ESM were used, where the treated ESM pore size and fiber crossing density was controlled by timed exposure to hydrogen peroxide (H 2 O 2 ). Ag NPs were synthesized in situ by reduction of silver nitrate with ascorbic acid. Our results demonstrate that H 2 O 2 ‐treated Ag‐ESM provides a more densely packed 3D network of active material, which leads to consistently higher SERS enhancement than untreated Ag‐ESM substrates.