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Open AccessArticle

A New Possibility for Fermentation Monitoring by Electrical Driven Sensing of Ultraviolet Light and Glucose

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School of Sciences and Engineering, Av. Domingos da Costa Lopes, São Paulo State University (Unesp), 780 Jardim Itaipu, CEP 17602-496 Tupã, SP, Brazil
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São Carlos Institute of Physics, University of São Paulo—Box 369, 13566-970, São Carlos, SP, Brazil
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NanOLaB, Departamento de Física, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luiz, Km 235 Monjolinho, CP 676, CEP 13565-905 São Carlos, SP, Brazil
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Institute of Chemistry, Araraquara. Rua Professor Francisco Degni, São Paulo State University (Unesp), Jardim Quitandinha, CEP 14800-060 Araraquara, SP, Brazil
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Institute of Biosciences, Department of General and Applied Biology, São Paulo State University (Unesp), Rio Claro, Rio Claro, Av. 24-A, 1515 Bela Vista, CEP 13506-692 Rio Claro, SP, Brazil
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Institute for Research in Bioenergy, São Paulo State University (Unesp) Rua 10, 2527 Santana, CEP 13500-230 Rio Claro, SP, Brazil
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Author to whom correspondence should be addressed.
Biosensors 2020, 10(8), 97; https://doi.org/10.3390/bios10080097
Received: 22 June 2020 / Revised: 21 July 2020 / Accepted: 23 July 2020 / Published: 12 August 2020
(This article belongs to the Section Biosensor and Bioelectronic Devices)
Industrial fermentation generates products through microbial growth associated with the consumption of substrates. The efficiency of industrial production of high commercial value microbial products such as ethanol from glucose (GLU) is dependent on bacterial contamination. Controlling the sugar conversion into products as well as the sterility of the fermentation process are objectives to be considered here by studying GLU and ultraviolet light (UV) sensors. In this work, we present two different approaches of SnO2 nanowires grown by the Vapor–Liquid–Solid (VLS) method. In the GLU sensor, we use SnO2 nanowires as active electrodes, while for the UV sensor, a nanowire film was built for detection. The results showed a wide range of GLU sensing and as well as a significant influence of UV in the electrical signal. The effect of a wide range of GLU concentrations on the responsiveness of the sensor through current–voltage based on SnO2 nanowire films under different concentration conditions ranging was verified from 1 to 1000 mmol. UV sensors show a typical amperometric response of SnO2 nanowires under the excitation of UV and GLU in ten cycles of 300 s with 1.0 V observing a stable and reliable amperometric response. GLU and UV sensors proved to have a promising potential for detection and to control the conversion of a substrate into a product by GLU control and decontamination by UV control in industrial fermentation systems. View Full-Text
Keywords: glucose sensor; UV light sensor; nanowire biosensor; controlling fermentation glucose sensor; UV light sensor; nanowire biosensor; controlling fermentation
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MDPI and ACS Style

Amorim, C.A.; Blanco, K.C.; Costa, I.M.; de Araújo, E.P.; Arantes, A.d.N.; Contiero, J.; Chiquito, A.J. A New Possibility for Fermentation Monitoring by Electrical Driven Sensing of Ultraviolet Light and Glucose. Biosensors 2020, 10, 97. https://doi.org/10.3390/bios10080097

AMA Style

Amorim CA, Blanco KC, Costa IM, de Araújo EP, Arantes AdN, Contiero J, Chiquito AJ. A New Possibility for Fermentation Monitoring by Electrical Driven Sensing of Ultraviolet Light and Glucose. Biosensors. 2020; 10(8):97. https://doi.org/10.3390/bios10080097

Chicago/Turabian Style

Amorim, Cleber A.; Blanco, Kate C.; Costa, Ivani M.; de Araújo, Estácio P.; Arantes, Adryelle d.N.; Contiero, Jonas; Chiquito, Adenilson J. 2020. "A New Possibility for Fermentation Monitoring by Electrical Driven Sensing of Ultraviolet Light and Glucose" Biosensors 10, no. 8: 97. https://doi.org/10.3390/bios10080097

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