| Active Control of Silver Nanoparticles Spacing Using Dielectrophoresis for SERS. | |
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MedLine Citation:
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PMID: 22468827 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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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 bio-marker of <i>Bacillus anthracis</i>. The validity of the results is discussed using several complementing characterization scenarios. |
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Authors:
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Adam F Chrimes; Khashayar Khoshmanesh; Paul R Stoddart; Aminuddin A Kayani; Arnan Mitchell; Hemant Daima; Vipul Bansal; Kourosh Kalantar-Zadeh |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-4-2 |
Journal Detail:
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Title: Analytical chemistry Volume: - ISSN: 1520-6882 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-4-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370536 Medline TA: Anal Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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