Gold nanostructures for detection of pesticides, nitrates and drugs using Surface Enhanced Raman Spectroscopy

N. Nedyalkov, Ru Nikov, Ro Nikov, A. Nikolov, P. Atanasov, Y. Nakajima, M. Terakawa, M. Sawczak, K. Grochowska, G. Sliwinski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this work laser-assisted methods for metal nanostructures formation and their application as active substrates in Surface Enhanced Raman Spectroscopy are presented. The nanostructures are fabricated by laser processing of gold thin films deposited on low cost substrates as glass, ceramic, polymer and paper. The films are deposited by classical PLD technology. The produced films are then processed by nanosecond pulses delivered by nanosecond Nd:YAG laser system. At certain conditions the laser treatment leads to formation of discrete nanostructure on the substrate surface. Femtosecond Pulsed Laser Deposition in air is also applied for direct deposition of gold nanostructure. In another set of experiments gold nanoparticle colloids are fabricated by laser ablation of gold target in chloroform. The fabricated structures are then tested as active systems in SERS, as detection of pesticides (DDT), nitrates (NH4NO3), and drugs (Methylene blue) is demonstrated. The obtained results show that these nanostructures can be efficiently used in the detection and monitoring of materials with a high social impact.

Original languageEnglish
Title of host publication19th International Conference and School on Quantum Electronics
Subtitle of host publicationLaser Physics and Applications
EditorsSanka Gateva, Tanja Dreischuh, Alexandros Serafetinides, Albena Daskalova
PublisherSPIE
ISBN (Electronic)9781510609532
DOIs
Publication statusPublished - 2017
Event19th International Conference and School on Quantum Electronics: Laser Physics and Applications, ICSQE 2016 - Sozopol, Bulgaria
Duration: 2016 Sep 262016 Sep 30

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10226
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other19th International Conference and School on Quantum Electronics: Laser Physics and Applications, ICSQE 2016
CountryBulgaria
CitySozopol
Period16/9/2616/9/30

Keywords

  • Laser nanostructuring
  • SERS application

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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