Patterned growth of ZnO nanorods and enzyme immobilization toward the fabrication of glucose sensors

Ogata, Kenichi; Dobashi, H.; Koike, Kazuto; Sasa, Shigehiko; Inoue, M.; Yano, Mitsuaki

doi:10.1016/j.physe.2010.04.011

Cited by 23 publications

(17 citation statements)

References 24 publications

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“…There are only few studies reported that used ZnO, copper and aluminum oxide (43)(44)(45). Patterned growth of ZnO nanorods using photoresist was successfully performed on epitaxial single crystalline ZnO using a hydrothermal method and glucose oxidase was immobilized (45).…”

Section: Other Metallic Materialsmentioning

confidence: 99%

“…Patterned growth of ZnO nanorods using photoresist was successfully performed on epitaxial single crystalline ZnO using a hydrothermal method and glucose oxidase was immobilized (45). Because the large surface area of ZnO nanorods is expected to be advantageous for the detection of biomolecules, the immobilization of enzyme on their surface is one of the key issues for the fabrication of high sensitive biosensors.…”

Section: Other Metallic Materialsmentioning

confidence: 99%

“…Thus recent years witness the vigorous applications of inorganic nanomaterials in the development of biosensors (71). To develop biosensor systems, oxidizing enzymes (i.e., glucose oxidase and horseradish peroxidase) are conducted to sensing elements because they do not consume itself during the recognition event (catalyzing reaction of O2 or H2O2), hence can be reused thus providing a long lifetime for the device (43,45,72). Delvaux and Demoustier-Champagne reported that arrays of nanoscopic gold tubes were prepared by electroless deposition of the metal within the pores of polycarbonate particle track-etched membranes (70).…”

Section: Biosensorsmentioning

confidence: 99%

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Inorganic nanomaterial-based biocatalysts

Lee

Lee²,

Chang³

et al. 2011

BMB Reports

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Over the years, nanostructures have been developed to enable to support enzyme usability to obtain highly selective and efficient biocatalysts for catalyzing processes under various conditions. This review summarizes recent developments in the nanostructures for enzyme supporters, typically those formed with various inorganic materials. To improve enzyme attachment, the surface of nanomaterials is properly modified to express specific functional groups. Various materials and nanostructures can be applied to improve both enzyme activity and stability. The merits of the incorporation of enzymes in inorganic nanomaterials and unprecedented opportunities for enhanced enzyme properties are discussed.

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Section: Other Metallic Materialsmentioning

confidence: 99%

Section: Other Metallic Materialsmentioning

confidence: 99%

Section: Biosensorsmentioning

confidence: 99%

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Inorganic nanomaterial-based biocatalysts

Lee

Lee²,

Chang³

et al. 2011

BMB Reports

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“…Thus, the undoped ZnO nanowire with n-type properties could be used as a FET biosensor. Patterned ZnO nanorods hydrothermally synthesized on selected areas were integrated as glucose FET sensors [121]. GOx modified with both covalent and electrostatic bonding has been characterized, and indicated a large amount of GOx was immobilized on the ZnO nanorods.…”

Section: Science China Materialsmentioning

confidence: 99%

ZnO nanostructures in enzyme biosensors

et al. 2015

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Biosensing has developed tremendously since it was demonstrated by Leland C. Clark Jr. in 1962. ZnO nanomaterials are attractive candidates for fabricating biosensors, because of their diverse range of nanostructures, high electron mobility, chemical stability, electrochemical activity, high isoelectric points which promote enzyme adsorption, biocompatibility, and piezoelectric properties. This review covers ZnO nanostructures applied in enzyme biosensors, in the light of electrochemical transduction and field effect transduction. Different assembly processes and immobilization methods have been used to load enzymes into various ZnO nanostructures, providing enzymes with favorable micro-environments and enhancing their sensing performance. We briefly describe recent trends in ZnO syntheses, and the analytical performance of the fabricated biosensors, summarize the advantages of using ZnO nanostructures in biosensors, and conclude with future challenges and prospects.

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“…Considering energy consumption and environmental harmoniness, we have focused our attention on low temperature growth using aqueous solution. Thus ZnO nanorod growth via microwaveheating [3][4][5][6] was conducted, where rapid temperature increase with efficient heating was available. Obtained ZnO nanorods have average diameter of 200 nm and glucose sensing with detection limit of 0.01 mmol/L [5] was achieved by immobilizing enzymes on those nanorod surfaces [6].…”

mentioning

confidence: 99%

ZnO nanorod growth from aqueous solution via microwave heating on paper substrates

Ogata

Koike

Sasa

et al. 2013

Phys. Status Solidi C

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ZnO nanorods were grown on paper substrates using aqueous solution at 95 °C by microwave heating. Although no direct growth on paper substrates was observed, surface coating with ZnMgO and Au layers enabled ZnO nanorod growth on paper substrates with rough surface structures of cellulose. X‐ray diffraction (XRD) measurements showed a weak diffraction peak from c‐axis oriented ZnO nanorods associated with tilted ones, which is related with not only rough surface structure of cellulose but also the poor properties of coated layers. In cathodoluminescence (CL) spectra, stronger bandedge emission was observed in ZnO nanorods on ZnMgO/paper in comparison of that on Au/paper substrates. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Patterned growth of ZnO nanorods and enzyme immobilization toward the fabrication of glucose sensors

Cited by 23 publications

References 24 publications

Inorganic nanomaterial-based biocatalysts

Inorganic nanomaterial-based biocatalysts

ZnO nanostructures in enzyme biosensors

ZnO nanorod growth from aqueous solution via microwave heating on paper substrates

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