Bioelectrocatalysis at mesoporous antimony doped tin oxide electrodes—Electrochemical characterization and direct enzyme communication

Frasca, Stefano; Milan, Anabel Molero; Guiet, Amandine; Goebel, Caren; Pérez-Caballero, Fernando; Stiba, Konstanze; Leimkühler, Silke; Fischer, Anna; Wollenberger, Ulla

doi:10.1016/j.electacta.2013.03.144

Cited by 33 publications

(42 citation statements)

References 58 publications

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“…They have indeed potential applications in adsorption 28–31, separation 32–34, catalysis 35–37, electrochemistry 38, 39, sensors 39–46 and biosensors 44, 47–53, drug delivery and other biomedical fields 54–58, immobilization of biomolecules and biocatalysis 59–64, environmental processes 28, 30, 31, 65, 66, energy conversion and storage 39, 66–69, and so on 70, 71. Nowadays, effective synthesis procedures have been developed to generate various types of ordered mesoporous materials, such as silica and silica‐based organic‐inorganic hybrid materials 1–8, 72, metal oxides other than silica 1, 9–12, 73–75, mesoporous non‐oxide materials 13, 14, 76, ordered porous metals 1, 11, 15, 16, ordered mesoporous carbons 1, 17–26, 77, 78, or mesostructured organic polymers 22, 26, 27. Many of them are particularly attractive for being used in electrochemical sensing and biosensing devices, in which one can take advantage of their support/hosting properties (i.e., for immobilization of biomolecules, catalysts, or charge transfer mediators), their intrinsic (electro)catalytic and/or conductivity properties (mainly mesoporous metal and carbon), their widely open, highly ordered and mechanically stable inorganic mesostructure (ensuring fast transport of reactants throughout highly porous and accessible spaces), and their ease of functionalization with huge amounts of diverse reactive moieties that can be attached to mesopore walls over wide surface areas (mainly on mesoporous silica), for instance.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Materials‐Based Electrochemical Enzymatic Biosensors

et al. 2015

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This review (239 references) is dealing with the use of mesoporous materials in the field of electrochemical enzymatic biosensors. After a brief discussion on the interest of mesoporous materials for electrochemical biosensing, a presentation of the various types of inorganic and organic‐inorganic hybrid mesostructures used to date in the elaboration of enzymatic bioelectrodes is given and the main bioelectrode configurations are described. The various biosensor applications are then summarized on the basis of a comprehensive table and some representative illustrations. The main detection schemes developed in the field are based on amperometry and mediated electrocatalysis, as well as some on spectroelectrochemistry.

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Section: Introductionmentioning

confidence: 99%

Mesoporous Materials‐Based Electrochemical Enzymatic Biosensors

et al. 2015

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“…The increase in the current density with the increase in the potential scan rate is attributed to the excitation signal caused during the charging of the interface capacitance by the charge transfer process. Thus, showing the CV for bare GCE and ZnO nanoparticles at different scan rates [35,48]. The shape of the curves is nearly rectangular show clear increase in current with scan rate which suggests the contribution from faradaic reaction [15,31].…”

Section: Electrochemical Studymentioning

confidence: 99%

The Study of Structural, Physical and Electrochemical Activity of Zno Nanoparticles Synthesized by Green Natural Extracts of Sageretia Thea

Mayedwa¹,

Khalil²,

Mongwaketsi³

et al. 2017

Nano Res Appl

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In this contribution an exceptionally simple, cost effective and reliable method for biosynthesis of ZnO nanoparticles through using Sageretia thea natural extracts as an effective chelating agent. The morphological analysis shows ZnO has nanoscale particles size 28.09 nm ± 5 nm, crystalline and possess distinct nanostructure hexagonal wurtzite structure. Effects of heat on ZnO synthesised at room temperature caused bonds with in the molecule to be broken exhibited continuous weight loss with 3 quasi sharp changes and 3 endothermic peaks occurring at 79°C, 228°C and 300°C. A proposed mechanism of reaction for Zn(NO 3 ) 2 6H 2 O precursor with bioactive compounds in Sageretia thea extract such as phenolic acid, flavonoids, natural sterolin and vitamin based compounds to form ZnO nanoparticles. Electrochemically ZnO nanoparticles are electroactive by exhibiting charge transfer resistance (R ct ) 82006 Ω and bare GCE 3.7707 × 10 5 Ω. Showed good catalytic and conductivity which can be applied for pseudo capacitors.

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“…Recently, Frasca et al . [286] also used thin films of ATO with two different porosities (ATO-F127 and pl-ATO) as platforms to adsorb Human sulfite oxidase ( h SO) by immersion for 2 h. The response of the obtained biosensor was carried out using a flow injection/amperometric detection system while the electrode was polarized at 0 V.…”

Section: Adsorbedproteinsmentioning

confidence: 99%

Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: A review

Bhakta

Evans

Benavidez

et al. 2015

Analytica Chimica Acta

222

116

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An important consideration for the development of biosensors is the adsorption of the bio recognition element to the surface of a substrate. As the first step in the immobilization process, adsorption affects most immobilization routes and much attention is given into the research of this process to maximize the overall activity of the bio sensor. The use of nanomaterials, specifically nanoparticles and nanostructured films, offers advantageous properties that can be fine-tuned for interaction with specific proteins to maximize activity, minimize structural changes, and enhance the catalytic step. In the biosensor field, protein-nanomaterial interactions are an emerging trend that span across many disciplines. This review addresses recent publications about the proteins most frequently used, their most relevant characteristics, and the conditions required to adsorb them to nanomaterials. When relevant and available, subsequent analytical figures of merits are discussed for selected biosensors. The general trend amongst the research papers allows concluding that the use of nanomaterials has already provided significant improvements in the analytical performance of many biosensors and that this research field will continue to grow.

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Bioelectrocatalysis at mesoporous antimony doped tin oxide electrodes—Electrochemical characterization and direct enzyme communication

Cited by 33 publications

References 58 publications

Mesoporous Materials‐Based Electrochemical Enzymatic Biosensors

Mesoporous Materials‐Based Electrochemical Enzymatic Biosensors

The Study of Structural, Physical and Electrochemical Activity of Zno Nanoparticles Synthesized by Green Natural Extracts of Sageretia Thea

Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: A review

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