Brushing, a simple way to fabricate SERS active paper substrates

Autor:	Wei Zhang, Xuehua Ma, Aiguo Wu, Bowei Li, Lingxin Chen, Dingxue Gao, Yunqing Wang
Rok vydání:	2014
Předmět:	Reproducibility Materials science General Chemical Engineering Microfluidics General Engineering Nanoparticle Nanotechnology Chip Silver nanoparticle Analytical Chemistry Rhodamine 6G chemistry.chemical_compound symbols.namesake Nanolithography chemistry symbols Raman scattering
Zdroj:	Anal. Methods. 6:2066-2071
ISSN:	1759-9679 1759-9660
Popis:	A simple and facile method has been demonstrated to fabricate low-cost surface enhanced Raman scattering (SERS) active microfluidic paper chips using a painting brush. This strategy solves the problem of mass production of highly reproducible SERS substrates without complicated or bulky micro- or nanofabrication instruments. Rhodamine 6G (R6G) was chosen as a probe molecule to evaluate the performance of the SERS active chip. To further demonstrate the possibility of this method's potential application in environmental monitoring, trace malachite green (MG) was successfully analyzed on this chip. The performance of our chips was desirable. The paper substrates with silver nanoparticles deposited by brush were found to be cost-efficient and highly sensitive (LOD for R6G and MG are 1 nM and 10 nM, respectively), and have good reproducibility (∼15% relative standard deviation).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::90b0c498c8e7158286c24f6e6137d2b2 https://doi.org/10.1039/c4ay00046c Zobrazit plný text záznamu