CC BY
9LM-O-11
LASER-MATTER INTERACTION
Laser processing as an approach for an inexpensive, green, and scalable dual-channel pesticide sensor fabrication
M. Fatkullin, A. Lipovka, A. Averkiev, A. Ivanov, J. Kolesnikova, R. Rodriguez, E. Sheremet
Tomsk Polytechnic University, Lenina ave. 30, 634034, Tomsk, Russia fatkullin.262@gmail.com
The demand of humanity to have clean and safe food and water raised to a critical point during the last century as the concern for the environment, which is hardly affected by humankind. That is why all over the world scientists tend to research how to preserve and minimize damage we are making to the environment and ourselves. The American Chemical Society partially summarized this trend in their 12 principles of green chemistry, one of which is formulated as "Real-time analysis for pollution prevention" [1]. To fulfill this principle, there is a huge need for a new generation of sensors and methods, which would be able to detect targeted analytes fast, selective, and in very small concentrations.
In this work, we are expanding our laser processing technology, for the time shown on aluminum nanoparticles [2], towards the creation of stable high-performance pesticides sensors. We implemented this approach for the integration of silver nanoparticle films on polyethylene terephthalate (PET) substrate to create a plasmonic laser-induced metal/polymer composite (AgLIMPc) (Fig. 1a). This sensor was used to detect organophosphate pesticides by surface-enhanced Raman spectroscopy (SERS) and electrochemistry (Fig. 1b).
We choose the combination of these two methods since SERS is highly selective and sensitive, but often could not be used to make a quantitative analysis. On the other hand, electrochemistry allows quantitative analysis. Also combining these two methods in a single platform gives the opportunity to enhance each other performance [3].
C3) Concentration from "Fingerprint'
Fig. 1 (a) Sketch of manufacturing of plasmonic sensor based on AgLIMPc; (b) concept art of dual-channel detection.
The reported study was funded by RFBR and DFG, project number 21-51-150001. The research was carried out using the core facilities of TPU's "Physics and Chemical methods of analysis".
[1] Jessop PG, Trakhtenberg S, Warner J. The twelve principles of green chemistry, Innovations in Industrial and Engineering Chemistry. Washington, DC: American Chemical Society, pp. 401-436, (2008)
[2] Rodriguez RD, Shchadenko S, Murastov G, Lipovka A, Fatkullin M, Petrov I, et al. Ultra-robust flexible electronics by laser-driven polymer-nanomaterials integration, Adv Funct Mater.; 2008818, (2021)
[3] Lipovka A, Fatkullin M, Averkiev A, Pavlova M, Adiraju A, Weheabby S, et al. Surface-Enhanced Raman Spectroscopy and Electrochemistry: The Ultimate Chemical Sensing and Manipulation Combination, Crit Rev Anal Chem, pp. 1-25, (2022)
