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Issue 7, 2015
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Direct laser writing of μ-chips based on hybrid C–Au–Ag nanoparticles for express analysis of hazardous and biological substances

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Abstract

Micro-chips based on organic–inorganic hybrid nanoparticles (NPs) composed of nanoalloys of gold (Au) and silver (Ag) embedded in an amorphous carbonaceous matrix (C–Au–Ag NPs) were prepared directly on a substrate by the laser-induced deposition (for short: LID) method. The C–Au–Ag NPs show a unique plasmon resonance which enhances Raman scattering of analytes, making the μ-chips suitable to detect ultra-low-volumes (10−12 liter) and concentrations (10−9 M) of bio-agents and a hazardous compound. These micro-chips constitute a novel, flexible solid-state device that can be used for applications in point-of-care diagnostics, consumer electronics, homeland security and environmental monitoring.

Graphical abstract: Direct laser writing of μ-chips based on hybrid C–Au–Ag nanoparticles for express analysis of hazardous and biological substances

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Publication details

The article was received on 21 Nov 2014, accepted on 04 Feb 2015 and first published on 04 Feb 2015


Article type: Paper
DOI: 10.1039/C4LC01376J
Author version available: Download Author version (PDF)
Citation: Lab Chip, 2015,15, 1742-1747
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    Direct laser writing of μ-chips based on hybrid C–Au–Ag nanoparticles for express analysis of hazardous and biological substances

    M. Y. Bashouti, A. Manshina, A. Povolotckaia, A. Povolotskiy, A. Kireev, Y. Petrov, M. Mačković, E. Spiecker, I. Koshevoy, S. Tunik and S. Christiansen, Lab Chip, 2015, 15, 1742
    DOI: 10.1039/C4LC01376J

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