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Issue 9, 2011
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Nanocomposite mesoporous ordered films for lab-on-chip intrinsic surface enhanced Raman scattering detection

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Abstract

Mesoporous nanocomposite materials have been fabricated through integration of evaporation-induced self-assembly and deep X-ray lithography. Micropatterned films made using a mesoporous ordered silica matrix which contains silver nanoparticles have been obtained. The exposure of the mesoporous films to high energy X-rays, which are generated by a synchrotron source, produces several effects: the removal of the surfactant, the densification of the silica backbone and the formation of silver nanoparticles. This integrated process produces a nanocomposite material which has a 2D-hexagonal organized porosity and silver nanoparticles with a sharp size distribution around 5 nm. The patterned nanostructured films have been tested as a lab-on-chip device for intrinsic surface enhanced Raman scattering detection using a solution containing rhodamine 6G in ethanol and measuring Raman response as a function of laser power.

Graphical abstract: Nanocomposite mesoporous ordered films for lab-on-chip intrinsic surface enhanced Raman scattering detection

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Publication details

The article was received on 20 Apr 2011, accepted on 10 Jun 2011 and first published on 08 Aug 2011


Article type: Paper
DOI: 10.1039/C1NR10404G
Citation: Nanoscale, 2011,3, 3760-3766
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    Nanocomposite mesoporous ordered films for lab-on-chip intrinsic surface enhanced Raman scattering detection

    L. Malfatti, P. Falcaro, B. Marmiroli, H. Amenitsch, M. Piccinini, A. Falqui and P. Innocenzi, Nanoscale, 2011, 3, 3760
    DOI: 10.1039/C1NR10404G

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