A new glucose sensor based on encapsulated glucose oxidase within organically modified sol–gel glass

Pandey, Prem C.; Upadhyay, S.K.; Pathak, H. C.

doi:10.1016/s0925-4005(99)00246-4

Cited by 79 publications

(46 citation statements)

References 7 publications

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“…Figure 3 shows typical recording on the subsequent addition of ethanol (0.08, 0.12, 0.20, 0.32, 0.64, 0.96 mM). The response time (time required to reach 95% of steady-state response) of the biosensor is relatively fast, on the order of ϳ25-35 s, compared to that of any ormosil-based biosensor reported earlier (9,10,20). The calibration curve of ethanol analysis is shown in Fig.…”

Section: Resultsmentioning

confidence: 88%

“…Studies indicate a great potential for use of ferrocene-encapsulated/linked sol-gel glasses in mediated biosensor applications. We recently reported a glucose biosensor (9,10,20) based on a sol-gel matrix of controlled porosity with an enzyme layer and subsequently another layer of sol-gel glass of controlled porosity using 3-aminopropyltriethoxysilane and 2-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane as solgel glass precursors (9). We studied both the mediated and the nonmediated responses of glucose biosensors.…”

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confidence: 99%

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An Organically Modified Silicate-Based Ethanol Biosensor

Pandey

Upadhyay

Tiwari

et al. 2001

Analytical Biochemistry

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Section: Resultsmentioning

confidence: 88%

mentioning

confidence: 99%

An Organically Modified Silicate-Based Ethanol Biosensor

Pandey

Upadhyay

Tiwari

et al. 2001

Analytical Biochemistry

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“…The I p are proportional to the square root of potential scan rate, which indicated that the peak current is diffusion controlled [28].…”

Section: Not Modified Electrodementioning

confidence: 98%

Glucose Biosensor Mediated by 1,2‐Diferrocenylethane in a Sono‐Gel Composite Electrode

et al. 2007

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An amperometric glucose biosensor was constructed based on a renewable carbon composite sono-gel matrix incorporating 1,2-diferrocenylethane as electron transfer mediator between the electrode and the active site of glucose oxidase. The enzyme was immobilized on the electrode surface by cross-linking with glutaraldehyde and bovine serum albumin. The process parameters for the fabrication of the biosensor and the influence of various experimental conditions (i.e., pH, temperature, operating potential) were investigated. Cyclic voltammetry and amperometric measurements were used to study the response of the glucose sensor, which displayed fast response time and good reproducibility. The analytical performances and the apparent Michaelis-Menten constant of the biosensor were evaluated.

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“…Porous silica materials are used in a wide variety of applications, including molecular sieves and filters [1,2], catalysts [3], ion exchangers [4], nanosensors [5], or drug-delivery systems [6,7]. They are appreciated for their large pore volume, large surface area, and high chemical and structural flexibility and tunability.…”

Section: Introductionmentioning

confidence: 99%

Review. Fluorescence Microscopy Studies of Porous Silica Materials

Rühle

Davies

Bein

et al. 2013

Zeitschrift Für Naturforschung B

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In this article, we discuss how fluorescence microscopy techniques are used to investigate important characteristics of porous silica materials. We start with a discussion of the synthesis, formation mechanism and functionalization of these materials. We then give an introduction to single molecule microscopy and show how this technique can be used to gain deeper insights into some defining properties of porous silica, such as pore structure, host-guest interactions and diffusion dynamics. We also provide examples from the literature demonstrating how fluorescence microscopy is used for elucidating important aspects of porous silica materials and heterogeneous catalysis, e. g. diffusion properties, reactivity, morphology, intergrowth, accessibility, and catalyst deactivation. Finally, a short outlook on the scope of porous silica hosts in drug delivery applications is given.

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A new glucose sensor based on encapsulated glucose oxidase within organically modified sol–gel glass

Cited by 79 publications

References 7 publications

An Organically Modified Silicate-Based Ethanol Biosensor

An Organically Modified Silicate-Based Ethanol Biosensor

Glucose Biosensor Mediated by 1,2‐Diferrocenylethane in a Sono‐Gel Composite Electrode

Review. Fluorescence Microscopy Studies of Porous Silica Materials

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