Differential Thick-Film Amperometric Glucose Sensor with an Enzyme-Immobilized Nitrocellulose Membrane

Cui, Gang; Yoo, Jae Hyun; Yoo, Jina; Lee, Sang Woo; Nam, Hakhyun; Sig, Geun

doi:10.1002/1521-4109(200103)13:3<224::aid-elan224>3.0.co;2-n

Cited by 21 publications

(9 citation statements)

References 32 publications

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“…Electrochemistry substantially increases the scope of options for detection using paper and fiber-based systems 1,27,28. We have demonstrated the chronoamperometric analysis of glucose, and the square-wave anodic stripping voltammetry measurements of heavy-metal ions using μPEDs.…”

Section: Discussionmentioning

confidence: 99%

Electrochemical sensing in paper-based microfluidic devices

et al. 2010

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This paper describes the fabrication and the performance of microfluidic paper-based electrochemical sensing devices (we call the microfluidic paper-based electrochemical devices, μPEDs). The μPEDs comprise paper-based microfluidic channels patterned by photolithography or wax printing, and electrodes screen-printed from conducting inks (e.g., carbon or Ag/AgCl). We demonstrated that the μPEDs are capable of quantifying the concentrations of various analytes (e.g., heavy-metal ions and glucose) in aqueous solutions. This low-cost analytical device should be useful for applications in public health, environmental monitoring, and the developing world.

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Section: Discussionmentioning

confidence: 99%

Electrochemical sensing in paper-based microfluidic devices

et al. 2010

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“…Mixtures containing 400 μM galactose and either 120 μM ascorbic acid, 140 μM acetaminophen, 60 μM uric acid, or 30 μM acetoacetic acid were prepared, and the corresponding interfering effects were estimated using the strip-type galactose sensors. Furthermore, recovery of galactose was determined from human plasma samples according to the reported methods [29][30][31]. The fresh frozen hum an plasm a was thawed at 37 o C and centrifuged at 3000 rpm for 20 min.…”

Section: Methodsmentioning

confidence: 99%

Disposable Strip-Type Biosensors for Amperometric Determination of Galactose

Gwon¹,

Lee²,

Nam³

et al. 2020

J. Electrochem. Sci. Technol

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A development of disposable strip-type galactose sensor for point-of-care testing (POCT) was studied, which was constructed using screen-printed carbon electrodes. Galactose levels were determined by the redox reaction of galactose oxidase in the presence of potassium ferricyanide as an electron transfer mediator in a small sample volume (i.e., less than 1 µL). The optimal performance of biosensor was systematically designated by varying applied potential, operating pH, mediator concentration, and amount of enzyme on the electrode. The sensor system was identified as a highly active for the galactose measurement in terms of the sensitivity (slope = 4.76 ± 0.05 nA/µM) with high sensor-to-sensor reproducibility, the linearity (R 2 = 0.9915 in galactose concentration range from 0 to 400 µM), and response time (t 9 5 % = <17 s). A lower applied potential (i.e., 0.25 V vs. Ag/AgCl) allowed to minimize interference from readily oxidizable metabolites such as ascorbic acid, acetaminophen, uric acid, and acetoacetic acid. The proposed galactose sensor represents a promising system with advantage for use in POCT.

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“…Diagnostic Applications. The binding characteristics of cellulose nitrate membranes have led to their use in numerous biosensor applications, such as in an electrochemical microbial biosensor for EtOH (85) and in glucose oxidase based glucose sensors (86). Cellulose nitrate continues to play an important role in the development of new biosensors as both a solid support and a method for removal of unbound reagents (87)(88)(89)(90)(91)(92)(93).…”

Section: Cellulose Esters Inorganicmentioning

confidence: 99%

Cellulose Esters, Inorganic

Shelton

2003

Encyclopedia of Polymer Science and Technology

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Inorganic esters of cellulose have a valuable place in history, from the birth of the plastics industry to elucidation of the genetic code. It is important not to forget the large number of applications in which these materials have played a role: coatings, explosives, pharmaceuticals, membranes, and synthetic intermediates. Although inorganic esters of cellulose have been around for over 100 years, these materials remain important tools for coatings scientists, explosives experts, and biochemists. This article provides a summary of work on inorganic esters of cellulose, including cellulose nitrate, cellulose phosphate, cellulose sulfate, and cellulose sulfonates.

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Differential Thick-Film Amperometric Glucose Sensor with an Enzyme-Immobilized Nitrocellulose Membrane

Cited by 21 publications

References 32 publications

Electrochemical sensing in paper-based microfluidic devices

Electrochemical sensing in paper-based microfluidic devices

Disposable Strip-Type Biosensors for Amperometric Determination of Galactose

Cellulose Esters, Inorganic

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