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SERS studies of DNA nucleobases using new silver poly(methyl methacrylate) nanocomposites as analytical platforms
Author(s) -
Pinheiro Paula C.,
Fateixa Sara,
Nogueira Helena I. S.,
Trindade Tito
Publication year - 2015
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.4589
Subject(s) - miniemulsion , nanocomposite , nucleobase , methyl methacrylate , polymerization , raman spectroscopy , polymer , materials science , poly(methyl methacrylate) , nanoparticle , nanotechnology , biomolecule , methacrylate , dna , chemistry , chemical engineering , composite material , optics , biochemistry , physics , engineering
The implementation of polymer‐based composites provides a plausible alternative to develop efficient, handy and scalable substrates for surface‐enhanced Raman spectroscopy (SERS) aiming the widespread use of this technique for chemical analysis and molecular sensing. In this research, new poly(methylmethacrylate) based nanocomposites for SERS were prepared by in situ miniemulsion polymerization in the presence of organically capped metal silver nanoparticles. The ensuing composites have been investigated as analytical platforms for SERS detection of DNA constituents for variable analytical conditions. Finally, we show that in special cases, selective detection of DNA bases by SERS can be possible by varying the pH of the solution under analysis. Copyright © 2014 John Wiley & Sons, Ltd.