TY - GEN
T1 - Gold nanostructures for detection of pesticides, nitrates and drugs using Surface Enhanced Raman Spectroscopy
AU - Nedyalkov, N.
AU - Nikov, Ru
AU - Nikov, Ro
AU - Nikolov, A.
AU - Atanasov, P.
AU - Nakajima, Y.
AU - Terakawa, M.
AU - Sawczak, M.
AU - Grochowska, K.
AU - Sliwinski, G.
N1 - Funding Information:
The authors acknowledge the financial support of the project DFNP-185 "Preparation of colloids by laser ablation in liquids for printing of two-dimensional and three-dimensional structures" under scientific program "Assistance for young scientists", BAS. The support in the frame of the bilateral project "Laser assisted nanostructure fabrication with application in detection of water pollutions and light harvesting" between Bulgarian and Polish Academies of Sciences is also acknowledged. The support form project DNTS 01/1 funded by Bulgarian National Science Fund in the frame of bilateral program with Germany is also appreciated.
Publisher Copyright:
© 2017 SPIE.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - Laser nanostructuring
KW - SERS application
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U2 - 10.1117/12.2261674
DO - 10.1117/12.2261674
M3 - Conference contribution
AN - SCOPUS:85017375635
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 19th International Conference and School on Quantum Electronics
A2 - Gateva, Sanka
A2 - Dreischuh, Tanja
A2 - Serafetinides, Alexandros
A2 - Daskalova, Albena
PB - SPIE
T2 - 19th International Conference and School on Quantum Electronics: Laser Physics and Applications, ICSQE 2016
Y2 - 26 September 2016 through 30 September 2016
ER -