Trapping of Au nanoparticles in a microfluidic device using dielectrophoresis for surface enhanced Raman spectroscopy

Almeida, Gabriela B.; Poppi, Ronei J.; Fracassi da Silva, Jose A.

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Trapping of Au nanoparticles in a microfluidic device using dielectrophoresis for surface enhanced Raman spectroscopy

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Author(s):	Almeida, Gabriela B. ; Poppi, Ronei J. ; Fracassi da Silva, Jose A. Total Authors: 3
Document type:	Journal article
Source:	ANALYST; v. 142, n. 2, p. 375-379, 2017.
Web of Science Citations:	6
Abstract
Dielectrophoresis (DEP) is the electrokinetic movement of non-charged particles when they are subjected to a non-uniform electric field. This is a growing area of research, which can be used for trapping, concentrating and separating different particles. Some work has been reported with the intention of trapping metal particles to optimize the surface enhanced Raman spectroscopy (SERS) effect. In this paper, we use DEP with insulating structures (iDEP) to generate a non-uniform electric field for trapping gold nanoparticles (AuNP). The system was coupled to a Raman spectrometer for the detection of Crystal Violet by utilizing the SERS effect. (AU)

FAPESP's process:	13/22127-2 - Development of novel materials strategic for integrated analytical devices
Grantee:	Lauro Tatsuo Kubota
Support Opportunities:	Research Projects - Thematic Grants

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