RT info:eu-repo/semantics/article T1 Development of a bioelectronic tongue modified with gold nanoparticles for dairy analysis A1 Pérez González, Clara A1 Salvo Comino, Coral A1 Martín Pedrosa, Fernando A1 García Cabezón, Ana Cristina A1 Rodríguez Méndez, María Luz K1 Biosensors K1 Potentiometry K1 Physical chemistry K1 Dairy products industry K1 Industria lechera K1 Productos lácteos - Análisis K1 Nanoparticles K1 Electronic tongue K1 3312 Tecnología de Materiales AB The objective of this work was to create an all-solid-state potentiometric bioelectronic tongue with an array of polymeric membrane-based sensors, which could then be used in the dairy sector. Membranes were modified with gold nanoparticles, and enzymes were covalently linked to the sensor’s surface to create an array of sensors with greater sensitivity. The responses of the sensors modified with gold nanoparticles and covalently associated enzymes, showed higher sensitivities. Moreover, the developed bioelectronic tongue was able to perform the discrimination of milks with different nutritional characteristics by applying principal component analysis. In addition, the results obtained showed that by applying partial least squares analysis, the system could be used as a prediction system for different chemical parameters (such as acidity, proteins, lactose, etc.). PB MDPI SN 2673-4583 YR 2021 FD 2021 LK https://uvadoc.uva.es/handle/10324/59618 UL https://uvadoc.uva.es/handle/10324/59618 LA eng NO Chemistry Proceedings, 2021, Vol. 5, Nº. 1, 31 NO Producción Científica DS UVaDOC RD 15-may-2024