Determination of Catechol by a Laccase Biosensor Based on Silica-Modified Zirconia Nanoparticles

Qu, Jianying; Wang, Yong; Guo, Jianhui; Lou, Tongfang; Dong, Ying

doi:10.1080/00032719.2014.915402

Cited by 15 publications

(5 citation statements)

References 19 publications

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“…20,21 Zirconia (ZrO 2 ) nanoparticles are also of great interest due to their appreciable chemical inertness, thermal stability, adaptable structure, high electrical conductivity along with the property to enhance strength and toughness leading to application in optics, catalysis, adsorption, catalytic support, sensors, electrical, thermal and magnetic elds of interest. 22,23 It is well-known that the properties of nanoparticles could be effectively tuned by mixing two or more elements/oxides together. NiO and ZrO 2 nanoparticles offer various functions for electroanalysis, with these nanoparticles being reported for their enhanced catalytic and conductivity properties owing to the nano dimensions that facilitate the electrical contact of redox-sites in analyte with the electrode surface.…”

Section: Introductionmentioning

confidence: 99%

NiO–ZrO₂nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

et al. 2015

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Section: Introductionmentioning

confidence: 99%

NiO–ZrO₂nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

et al. 2015

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“…The limits of detection were obtained to be 0.11 and 12.26 μM. In table 2, the behaviour of the proposed biosensor is compared with the other biosensors based on Lac immobilized in different matrices [45,[51][52][53][54]. Compared to some other biosensors, the detection limit of our presented biosensor for catechol detection is much lower and also its sensitivity is higher.…”

Section: Effect Of Scan Ratementioning

confidence: 98%

Novel fabrication of a laccase biosensor to detect phenolic compounds using a carboxylated multiwalled carbon nanotube on the electropolymerized support

et al. 2019

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Biosensors research is one of the fastest growing fields in which tens of thousands of papers have been published over the years; even more, numerous biosensors have been developed for the detection of phenolic compounds, such as catechol which reacts with an appropriate enzymatic bioreceptor like laccase. A biosensing electrode for catechol detection was investigated by covalent immobilization of laccase on a glassy carbon electrode modified by conducting polymers built of poly(3,4-ethylenedioxythiophene), gold nanoparticles and carboxylated multiwalled carbon nanotubes. The fabrication process of the sensing surface was investigated by Fourier transform infrared spectroscopy, scanning electron microscopy and electrochemical procedures. The electrochemical results demonstrate that the enzyme was immobilized covalently onto the modified glassy carbon electrode by the interaction between carboxyl groups of the carboxylated multiwalled carbon nanotubes and laccase. The biosensor demonstrates a direct electron transfer between the electrode and immobilized laccase. Under optimum conditions, it presented two linear responses in the range of 0.1-0.5 and 11.99-94.11 μM. The limits of detection were found to be 0.11 and 12.26 μM.

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“…Three redox sites hold four Cu atoms per monomer of laccase, one in each T1 and T2 site and two in T3 sites. However, the poor stability and easily changeable properties of laccase in the during its application process limit its use [94] . Qu and colleagues [94] used silica‐modified zirconia nanoparticles (Si‐ZrO 2 ) to immobilize laccase.…”

Section: Individual Detection Of Ctmentioning

confidence: 99%

“…However, the poor stability and easily changeable properties of laccase in the during its application process limit its use [94] . Qu and colleagues [94] used silica‐modified zirconia nanoparticles (Si‐ZrO 2 ) to immobilize laccase. The enzyme activity was maintained using a Si‐ZrO 2 nanohybrid.…”

Section: Individual Detection Of Ctmentioning

confidence: 99%

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 2 – Nanomaterials Excluding Carbon Nanotubes and Graphene

Nayem

Shah

Sultana

et al. 2021

The Chemical Record

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The high surface‐to‐volume ratio and desirable chemical, thermal, and catalytic properties of nanomaterials have made them promising electrode materials for sensing applications. As such, different nanomaterials and their nanocomposite‐based individual and/or simultaneous detection of dihydroxybenzene (DHB) have been reported in recent years. Due to the low degradation rate and high toxicity of DHB isomers, the development of innovative and robust sensors for their simultaneous detection has received considerable attention. In this review, applications of different nanomaterials (with the exception of carbon nanotubes, graphene, and their derivatives) for individual and/or simultaneous detection of DHB are briefly discussed. The focal point is on the characteristic features of the modified electrodes that improve their electrocatalytic activities toward DHB. Real sample analysis and electrolyte media are also summarized. This review includes studies published from 2011 to 2020.

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Determination of Catechol by a Laccase Biosensor Based on Silica-Modified Zirconia Nanoparticles

Cited by 15 publications

References 19 publications

NiO–ZrO₂nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

NiO–ZrO₂nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

Novel fabrication of a laccase biosensor to detect phenolic compounds using a carboxylated multiwalled carbon nanotube on the electropolymerized support

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 2 – Nanomaterials Excluding Carbon Nanotubes and Graphene

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Determination of Catechol by a Laccase Biosensor Based on Silica-Modified Zirconia Nanoparticles

Cited by 15 publications

References 19 publications

NiO–ZrO2nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

NiO–ZrO2nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

Novel fabrication of a laccase biosensor to detect phenolic compounds using a carboxylated multiwalled carbon nanotube on the electropolymerized support

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 2 – Nanomaterials Excluding Carbon Nanotubes and Graphene

Contact Info

Product

Resources

About

NiO–ZrO₂nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug

NiO–ZrO₂nanocomposite modified electrode for the sensitive and selective determination of efavirenz, an anti-HIV drug