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Issue 4, 2011
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Microdroplet fabrication of silver–agarose nanocomposite beads for SERS optical accumulation

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Abstract

Microdroplets have been used as reactors for the fabrication of agarose beads with high uniformity in shape and size, and densely loaded with silver ions, which were subsequently reduced into nanoparticles using hydrazine. The resulting nanocomposite beads not only display a high plasmonic activity, but can also trap/concentrate analytes, which can be identified by means of surface-enhanced Raman scattering (SERS) spectroscopy. The size of the beads is such that it allows the detection of a single bead under a conventional optical microscope, which is very useful to reduce the amount of material required for SERS detection.

Graphical abstract: Microdroplet fabrication of silver–agarose nanocomposite beads for SERS optical accumulation

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Supplementary files

Article information


Submitted
30 Jun 2010
Accepted
23 Sep 2010
First published
26 Oct 2010

Soft Matter, 2011,7, 1321-1325
Article type
Paper

Microdroplet fabrication of silver–agarose nanocomposite beads for SERS optical accumulation

S. Abalde-Cela, B. Auguié, M. Fischlechner, W. T. S. Huck, R. A. Alvarez-Puebla, L. M. Liz-Marzán and C. Abell, Soft Matter, 2011, 7, 1321
DOI: 10.1039/C0SM00601G

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