| Literature DB >> 22468827 |
Adam F Chrimes1, Khashayar Khoshmanesh, Paul R Stoddart, Aminuddin A Kayani, Arnan Mitchell, Hemant Daima, Vipul Bansal, Kourosh Kalantar-zadeh.
Abstract
We demonstrate an active microfluidic platform that integrates dielectrophoresis for the control of silver nanoparticles spacing, as they flow in a liquid channel. By careful control of the nanoparticles spacing, we can effectively increase the surface-enhanced Raman scattering (SERS) signal intensity based on augmenting the number of SERS-active hot-spots, while avoiding irreversible aggregation of the particles. The system is benchmarked using dipicolinate (2,6-pyridinedicarboxylic acid) (DPA), which is a biomarker of Bacillus anthracis. The validity of the results is discussed using several complementing characterization scenarios.Entities:
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Year: 2012 PMID： 22468827 DOI： 10.1021/ac203381n
Source DB: PubMed Journal: Anal Chem ISSN： 0003-2700 Impact factor: 6.986