20.500.12556/DiRROS-18076-c632b5c9-172c-7d42-8a9b-99397d3a8816 Recovery study of gold nanoparticle markers from lateral flow immunoassays Lateral flow immunoassays (LFIAs) are a simple diagnostic device used to detect targeted analytes. Wasted and unused rapid antigen lateral flow immunoassays represent mass waste that needs to be broken down and recycled into new material components. The aim of this study was to recover gold nanoparticles that are used as markers in lateral flow immunoassays. For this purpose, a dissolution process with aqua regia was utilised, where gold nanoparticles were released from the lateral flow immunoassay conjugate pads. The obtained solution was then concentrated further with gold chloride salt (HAuCl4) so that it could be used for the synthesis of new gold nanoparticles in the process of ultrasonic spray pyrolysis (USP). Various characterisation methods including scanning electron microscopy, transmission electron microscopy, ultraviolet-visible spectroscopy and optical emission spectrometry with inductively coupled plasma were used during this study. The results of this study showed that the recovery of gold nanoparticles from lateral flow immunoassays is possible, and the newly synthesised gold nanoparticles represent the possibility for incorporation into new products. gold nanoparticles recovery LFIA ultrasonic spray pyrolysis characterisation true false true MDPI Švica Angleški jezik Ni določen © 2023 by the authors Neznano 2024-02-02 07:13:41 2024-02-02 07:13:42 2024-04-18 07:26:30 0000-00-00 00:00:00 2023 0 0 Nasl. z nasl. zaslona; Opis vira z dne 29. 8. 2023; str. 1-12 iss. 17 Vol. 16 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2023-08-23 620.3:669.21 1996-1944 10.3390/ma16175770 162504195 RAZ_Svarc_Tilen_2023.pdf RAZ_Svarc_Tilen_2023.pdf 1 28B992B42416E6A1E58856B410B4CF1B d1f974663268d0abd0eff3ee431a5c299601371fa8c6a9d070e41eee76ac38e4 6f36ec8e-c195-11ee-b0d4-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=24545 https://www.mdpi.com/1996-1944/16/17/5770 0 8accf070-c195-11ee-b0d4-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=24546 Inštitut za kovinske materiale in tehnologije 0 0 0