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Plasmonic Properties of Halloysite Nanotubes with Immobilized Silver Nanoparticles for Applications in Surface‐Enhanced Raman Scattering
Author(s) -
Kornilova Anastasiia V.,
Gorbachevskii Maxim V.,
Kuralbayeva Galiya A.,
Jana Subhra,
Novikov Andrei A.,
Eliseev Andrei A.,
Vasiliev Alexander N.,
Timoshenko Victor Yu.
Publication year - 2019
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.201800886
Subject(s) - halloysite , materials science , raman scattering , nanocomposite , raman spectroscopy , plasmon , transmission electron microscopy , chemical engineering , nanoparticle , nanotechnology , silver nanoparticle , aqueous solution , surface plasmon resonance , chemistry , optics , composite material , optoelectronics , organic chemistry , physics , engineering
Halloysite nanotubes (HNTs) with surface‐immobilized silver (Ag) nanoparticles (NPs) are explored as nano‐templates for the surface‐enhanced Raman scattering (SERS). The structure and plasmonic properties of HNTs/Ag nanocomposite during storage in water are checked by means of the transmission electron microscopy and optical absorption spectroscopy, respectively. A remarkable SERS response is observed for and the SERS activity of HNTs/Ag stored in water for 1 week decreases by several times. The observed SERS‐activity is explained by desired morphology of Ag NP distribution on the surface of HNTs, which is modified during storage in aqueous medium. The revealed SERS activity of HNTs/Ag nanocomposites seems to be promising for their application in biosensorics.