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Phospholipid detection by surface‐enhanced Raman scattering using silvered porous silicon substrates
Author(s) -
Arzumanyan Grigory,
Doroshkevich Nelya,
Mamatkulov Kahramon,
Shashkov Sergej,
Girel Kseniya,
Bandarenka Hanna,
Borisenko Victor
Publication year - 2017
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201600915
Subject(s) - porous silicon , raman scattering , materials science , dipalmitoylphosphatidylcholine , raman spectroscopy , silicon , wavelength , porosity , molecule , phospholipid , scattering , analytical chemistry (journal) , nanotechnology , optoelectronics , optics , chemistry , chromatography , membrane , composite material , phosphatidylcholine , organic chemistry , biochemistry , physics
Silver particles, predominantly with the size of 40–80 nm, were immersion deposited onto porous silicon to form substrates appropriate for the detection of organic molecules by surface‐enhanced Raman scattering technique. These substrates have been demonstrated for the first time to provide detection of phospholipid molecules represented by dipalmitoylphosphatidylcholine at concentrations as low as 10 −12 M when a 532 nm laser wavelength is used and 10 −11 M at 633 nm wavelength. Label‐free detection is realized at these conditions.