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Chromatographic paper embedded with silver nanostructure as a disposable substrate for surface‐enhanced Raman spectroscopy and catalytic reactor
Author(s) -
Nie Bei,
Zhou Qiuhong,
He Jiming,
Yang Fumo
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.4636
Subject(s) - raman spectroscopy , catalysis , substrate (aquarium) , microanalysis , surface enhanced raman spectroscopy , nanostructure , spectroscopy , chemical engineering , chemistry , materials science , nanotechnology , analytical chemistry (journal) , chromatography , raman scattering , organic chemistry , physics , oceanography , engineering , quantum mechanics , optics , geology
The high cost of regular diagnostic kits severely impeded its uses for routine clinical assay and fieldworks. A cost‐effective chromatography paper is chemically modified with Ag nanostructures using the simple electroless silver deposition, producing a scalable and disposable substrate for surface‐enhanced Raman spectroscopy, as well as a large scale of catalytic active sites over many chemical reactions. Synergetic measurement including surface‐enhanced Raman spectroscopy and laser desorption ionization‐mass spectrometry is performed on Ag decorated filter paper using a thiol containing compound as indicator, allowing for the acquisition of spatially correlated spectroscopy in the tandem mode. In addition, hydrophilic porous cellulose network that contains a certain amount of liquid naturally served as a chemical reactor for molecular transport and reaction. Positive results from catalytic reaction on metallized paper convincingly demonstrated that total microanalysis system on paper (μ‐TASoP), as a compelling alternative would find a wide breadth of applications in developing disposable medical devices and customary laboratory assays. Copyright © 2015 John Wiley & Sons, Ltd.