20.500.12556/DKUM-86990 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 zlati nanodelci predelava ultrazvočna piroliza karakterizacija true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/materials Članek v reviji 2024-02-06 06:40:17 2024-02-09 09:50:08 2024-04-05 12:14:04 0000-00-00 00:00:00 2023 0 0 Str. 1-12 Št. 17, št. članka 5770 Letn. 16 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-08-01 2023-08-22 2023-08-23 620.3:669.21 162504195 10.3390/ma16175770 1996-1944 Svarc-2023-Recovery_Study_of_Gold_Nanoparticle.pdf Svarc-2023-Recovery_Study_of_Gold_Nanoparticle.pdf 1 AD5338F67043F66DAF3E152D5C96E931 52aa5a7af8b9cd13c1a033d48593b96c9e45ace3972cc67cf169f1eca1bb0960 0f2a17a1-c728-11ee-a1af-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=176029 https://doi.org/10.3390/ma16175770 0 35bcd89a-c4b2-11ee-b2aa-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=175924 Fakulteta za strojništvo 0 0 0