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New trends in nanoclay-modified sensors

Abstract: Nanoclays are widespread materials characterized by a layered structure in the nano-scale range. They have multiple applications in diverse scientific and industrial areas, mainly due to their swelling capacity, cation exchange capacity, and plasticity. Due to the cation exchange capacity, nanoclays can serve as host matrices for the stabilization of several molecules and, thus, they can be used as sensors by incorporating electroactive ions, biomolecules as enzymes, or fluorescence probes. In this review, the most recent applications as bioanalyte sensors are addressed, focusing on two main detection systems: electrochemical and optical methods. Particularly, the application of electrochemical sensors with clay-modified electrodes (CLME) for pesticide detection is described. Moreover, recent advances of both electrochemical and optical sensors based on nanoclays for diverse bioanalytes? detection such as glucose, H2O2, organic acids, proteins, or bacteria are also discussed. As it can be seen from this review, nanoclays can become a key factor in sensors? development, creating an emerging technology for the detection of bioanalytes, with application in both environmental and biomedical fields.

 Autoría: Pavón E., Martín-Rodríguez R., Perdigón A.C., Alba M.D.,

 Fuente: Inorganics, 2021, 9(6), 43

Editorial: MDPI

 Fecha de publicación: 02/06/2021

Nº de páginas: 23

Tipo de publicación: Artículo de Revista

 DOI: 10.3390/inorganics9060043

ISSN: 2304-6740

Autores/as

PAVÓN GONZÁLEZ, ESPERANZA

MARIA DOLORES ALBA CARRANZA