RT Journal Article T1 A chemically functionalized glass support for gold and silver metallic nanoparticle analysis with LIBS A1 Cárdenas Escudero, Jafet A1 Gardette, Vincent A1 Villalonga Chico, Anabel A1 Sánchez Sánchez, Alfredo A1 Villalonga Santana, Reynaldo A1 Motto-Ros, Vincent A1 Galán Madruga, David A1 Cáceres, Jorge Omar AB This work has focused on the development of a new analytical alternative based on the laser-induced breakdown spectroscopy (LIBS) technique for the fast, reliable, and economical determination of the gold and silver nanoparticle content in a low linear concentration range between 2.9 and 0.058 μg mL−1 and 2.9–0.116 μg mL−1, respectively, without requiring complicated sample pretreatment procedures or advanced separation techniques. Metallic nanoparticles are currently essential materials for the development of new technologies in different scientific and technical areas. However, numerous studies have pointed out these nanomaterials' toxic and polluting potential and the various health implications for humans, animals, and the ecosystem. The current reality reflects the lack of analytical techniques with low economic, environmental, and health impacts and the capacity to quantify the total metallic nanoparticle content. For this purpose, a novel and simple method for the selective capture of gold and silver nanoparticles, consisting of a chemically functionalized glass surface, has been custom-developed for subsequent analysis with LIBS. The results show that the proposed method, employing a functionalized sample glass support, presents a suitable analytical performance characterized by increased sensitivity, specifically 4.7% and 329.2% for Au-NPs and Ag-NPs, and proportionally decreased error in the slope and intercept of the calibration curves, 68% for Au-NPs and 87% for Ag-NPs, respectively. PB Royal Society of Chemistry YR 2024 FD 2024 LK https://hdl.handle.net/20.500.14352/109219 UL https://hdl.handle.net/20.500.14352/109219 LA eng NO J. Cárdenas-Escudero, V. Gardette, A. Villalonga, A. Sánchez, R. Villalonga, V. Motto-Ros, D. Galán-Madruga and J. O. Cáceres, A chemically functionalized glass support for gold and silver metallic nanoparticle analysis with LIBS, J. Anal. At. Spectrom., 2024, 39, 962–973. NO 2024 Acuerdos transformativos CRUE NO Instituto para la Formación y Aprovechamiento de Recursos Humanos (Panamá) NO Universidad Complutense de Madrid DS Docta Complutense RD 14 dic 2025