Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Study of the Application of Recycled Gold Nanoparticles in Coatings for Eyewear Lenses

Peter Majerič
ORCID logo ,
Djuro Koruga
,
Zorana Njegovan
,
Žiga Jelen
,
Tilen Švarc
ORCID logo ,
Andrej Horvat
,
Rebeka Rudolf
* ORCID logo
Version 1 : Received: 21 August 2023 / Approved: 21 August 2023 / Online: 22 August 2023 (10:54:21 CEST)

A peer-reviewed article of this Preprint also exists.

Majerič, P.; Koruga, D.; Njegovan, Z.; Jelen, Ž.; Švarc, T.; Horvat, A.; Rudolf, R. Study of the Application of Recycled Gold Nanoparticles in Coatings for Eyewear Lenses. Coatings 2023, 13, 1666. Majerič, P.; Koruga, D.; Njegovan, Z.; Jelen, Ž.; Švarc, T.; Horvat, A.; Rudolf, R. Study of the Application of Recycled Gold Nanoparticles in Coatings for Eyewear Lenses. Coatings 2023, 13, 1666.

Abstract

The surface plasmon resonance of gold nanoparticles causes visible light absorption and scattering effects that may be used in optical coatings for eliminating blue light emission from display monitors, blocking UV light and for decorative applications. This study examines the achievement of functional properties provided by gold nanoparticles in a commercially established C60 fullerene-coated eyewear product. The gold nanoparticles used were sourced from recycling rapid lateral flow tests (LFIA), which use gold nanoparticles as test markers. After the gold`s recovery Ultrasonic Spray Pyrolysis (USP) with freeze-drying was used for the synthesis of new gold nanoparticles, to be used in optical coatings. The gold nanoparticles were examined with SEM, TEM, DLS, zeta potential, BET, and Vis-NIR for characterising their shapes and sizes, required for determination of the surface plasmon resonance effect. After applying the newly produced gold nanoparticles with fullerene C60 in a combined coating for eyewear lenses, the absorption and transmission of the lenses was determined for establishing changes in the coating functionality. The results show that enhancing the fullerene C60 coating with gold nanoparticles improves light absorption and reflectance for blue and UV light further, which may be evaluated as beneficial for the eyewear user, as the reduction of eye strain is improved due to the coating.

Keywords

gold nanoparticles; lens; coating; characterisation

Subject

Chemistry and Materials Science, Nanotechnology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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