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Review

New Trends in Nanoclay-Modified Sensors

1
Instituto Ciencia de los Materiales de Sevilla, CSIC-Universidad de Sevilla, Avda. Américo Vespucio, 49. 41092 Seville, Spain
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Departamento Física de la Materia Condensada, Universidad de Sevilla, Av. Reina Mercedes s/n, 41012 Seville, Spain
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Departamento QUIPRE, Universidad de Cantabria, Avda. de Los Castros 46, 39005 Santander, Spain
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Grupo de Nanomedicina, IDIVAL, Avda. Cardenal Herrera Oria s/n, 39011 Santander, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Antonino Gulino
Inorganics 2021, 9(6), 43; https://doi.org/10.3390/inorganics9060043
Received: 11 May 2021 / Revised: 28 May 2021 / Accepted: 28 May 2021 / Published: 2 June 2021
(This article belongs to the Special Issue Inorganic Nanostructures)
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. View Full-Text
Keywords: nanoclays; sensor; electrochemical; optical; biosensors; bioanalytes nanoclays; sensor; electrochemical; optical; biosensors; bioanalytes
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MDPI and ACS Style

Pavón, E.; Martín-Rodríguez, R.; Perdigón, A.C.; Alba, M.D. New Trends in Nanoclay-Modified Sensors. Inorganics 2021, 9, 43. https://doi.org/10.3390/inorganics9060043

AMA Style

Pavón E, Martín-Rodríguez R, Perdigón AC, Alba MD. New Trends in Nanoclay-Modified Sensors. Inorganics. 2021; 9(6):43. https://doi.org/10.3390/inorganics9060043

Chicago/Turabian Style

Pavón, Esperanza, Rosa Martín-Rodríguez, Ana C. Perdigón, and María D. Alba 2021. "New Trends in Nanoclay-Modified Sensors" Inorganics 9, no. 6: 43. https://doi.org/10.3390/inorganics9060043

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