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, S. Christiansen

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

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.

Original languageEnglish
Pages (from-to)1742-1747
Number of pages6
JournalLab on a Chip
Volume15
Issue number7
DOIs
StatePublished - 7 Apr 2015
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • General Chemistry
  • Biomedical Engineering

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