RT info:eu-repo/semantics/article
T1 Analysis of grapes and wines using a voltammetric bioelectronic tongue. Correlation with the phenolic and sugar content
A1 Rodríguez Méndez, María Luz
A1 Medina Plaza, Cristina
A1 García Hernández, Celia
A1 Saja Sáez, José Antonio de
A1 Fernández Escudero, José Antonio
A1 Barajas Tola, Enrique
A1 Medrano, Germán
AB Arrays of voltammetric sensors and biosensors based on phthalocyanines have been developed and used to analyze wines and grapes. Nanostructured sensors prepared by the Langmuir-Blodgett (LB), Layer by Layer (LbL) or electro-deposition are superior because the high number of active sites. The LB and the LbL techniques can be used to co-deposit electrocatalytic materials to obtain a synergistic electrocatalytic effect. Moreover, LB and LbL can be used to immobilize enzymes in a biomimetic structure formed by amphiphilic lipids. Such sensors show an enhanced selectivity. The presence of phthalocyanines as electron mediators improves the performance of the sensors. Combining sensors and biosensors in the same array provides the advantages of classical phthalocyanine based-sensors, with the specificity of the enzyme-substrate reaction typical of biosensors. The selectivity of the electronic tongue and its capability of discrimination are clearly improved when biosensors containing glucose oxidase or tyrosinase are included in the array.
YR 2014
FD 2014
LK http://uvadoc.uva.es/handle/10324/30600
UL http://uvadoc.uva.es/handle/10324/30600
LA eng
NO Sensors IEEE , Páginas, inicial: 2139,final: 2142 	Año: 2014
NO Producción Científica
DS UVaDOC
RD 22-dic-2024