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Optical force aggregation of gold nanoparticles as a tool to fabrication a multifunctional sensor
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SYSNO ASEP 0568181 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Optical force aggregation of gold nanoparticles as a tool to fabrication a multifunctional sensor Author(s) Bernatová, Silvie (UPT-D) RID, SAI
Kizovský, Martin (UPT-D)
Donato, M. G. (IT)
Foti, A. (IT)
Zemánek, Pavel (UPT-D) RID, SAI, ORCID
Samek, Ota (UPT-D) RID, ORCID, SAI
Maragò, O. M. (IT)
Gucciardi, P. G. (IT)Source Title Book of Abstracts. 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, September 5-9, 2022, Wojanów, Poland. - Wrocław : Wroclaw University of Science and Technology, 2022 / Sztylińska K.
S. 57Number of pages 1 s. Publication form Online - E Action Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics /22./ Event date 05.09.2022 - 09.09.2022 VEvent location Wojanow Country PL - Poland Event type WRD Language eng - English Country PL - Poland Keywords optical printing ; optical pushing ; surface enhanced Raman spectroscopy ; nanoplastics ; sensor ; biomolecule Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) Institutional support UPT-D - RVO:68081731 Annotation Optical nano-printing provides a versatile platform to print various nanometer size particles into arbitrary configurations. Optical printing, the use of light to direct the formation of a desired structure, has been of significant interest in the last two decades. For particles much smaller than the laser wavelength, optical forces can be well described in the dipole approximation. For a focused laser beam, two main optical force components are identified: the gradient force, which attracts particles toward the high-intensity focal spot, and the scattering force, which tends to push particles along the beam propagation direction. When the light is nearly resonant with the particle localized surface plasmons resonance, optical forces are dominated by radiation
pressure and can be used to efficiently push nanoparticles along the beam optical axis onto a substrate. In this context, optical forces can be applied to optically print nanoparticles
into patterns aggregated elements on surfaces such as glass. Here, we summarize a recent progress in our experiments that use optical nanoprinting of plasmonic nanoparticles to create an active aggregate in a solution containing biomolecules or nanoplastics. The active aggregate, produced on the base of optical forces, serves as a sensitive sensor which is used to detect biomolecules in concentration below the limit of detection for Raman spectroscopy and/or to detection of nanometer size plastic particles.Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2023
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