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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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Publication details

The article was received on 30 Jun 2010, accepted on 23 Sep 2010 and first published on 26 Oct 2010


Article type: Paper
DOI: 10.1039/C0SM00601G
Citation: Soft Matter, 2011,7, 1321-1325
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    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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