Studies of Electrooxidation of Dextrose in Neutral Media

Rao, Meera; Drake, Roger F.

doi:10.1149/1.2411841

Cited by 103 publications

(53 citation statements)

References 1 publication

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“…21 Nevertheless, partial oxidation products of glucose irreversibly adsorb on and poison most electrocatalysts. 22 Hence, electrochemical assays of biological glucose solutions utilize glucose oxidation-catalyzing enzymes.…”

Section: Direct Nonenzymatic Electrooxidation and Electroreduction mentioning

confidence: 99%

Electrochemical Glucose Sensors and Their Applications in Diabetes Management

2008

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About 6,000 peer reviewed articles have been published on electrochemical glucose assays and sensors, of which 700 were published in the 2005-2006 two-year period. Their number makes a full review of the literature, or even of the most recent advances, impossible. Nevertheless, this review should acquaint the reader with the fundamentals of the electrochemistry of glucose and provide a perspective of the evolution of the electrochemical glucose assays and monitors helping diabetic people, who constitute about 5% of the world's population. Because of the large number of diabetic people, no assay is performed more frequently than that of glucose. Most of these assays are electrochemical. The reader interested also in nonelectrochemical assays used in, or proposed for, the management of diabetes is referred to a 2007 review of Kondepati and Heise. 1 Adam Heller was born in 1933. Surviving the Holocaust, he arrived in Israel in 1945. He received his M.Sc. in Chemistry and Physics in 1957, then his PhD in Organic Chemistry in 1961 from Ernst David Bergman at the Hebrew University in Jerusalem. He postdoced at UC Berkeley (1962-3) and at Bell Laboratories . At GTE Labs (1964-1975 he built the first Nd 3+ liquid laser and, with J. J. Auborn, the still worldwide used Li/SOCl 2 battery. At Bell Labs (1975)(1976)(1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984)(1985)(1986)(1987)(1988) he designed the first >10% efficient electrochemical solar cells and the first >10% efficient hydrogengenerating solar-powered photoelectrode. He also headed Bell Labs' Electronic Materials Research Department (1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984)(1985)(1986)(1987)(1988), which developed part of the high density chip interconnection technology underlying the miniaturization of portable electronic devices. He was appointed to the Ernest Cockrell Sr. Chair in Engineering of the University of Texas at Austin in 1988, and in 2001 became one of UT's first Research Professors. At UT he pioneered the electrical wiring of enzymes. In 1996 he cofounded with his son Ephraim Heller TheraSense Inc., now part of Abbott Diabetes Care, to improve the lives of diabetic people. The company introduced in 2000 the blood sugar monitor FreeStyle, a thin-layer microcoulometer utilizing only 300 nL of blood, so little that it was, for the first time, painlessly obtained. In 2007 it provided for more than 1 billion painless glucose assays. After alleviating the pain of diabetes monitoring, FreeStyle Navigator, based on the electrical wiring of glucose oxidase, introduced in 2007 in Europe and Israel and in 2008 in the U.S., removed the worry of diabetic people by continuously monitoring their glucose levels. Heller aims his work at alleviating suffering through bioelectrochemistry.

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Section: Direct Nonenzymatic Electrooxidation and Electroreduction mentioning

confidence: 99%

Electrochemical Glucose Sensors and Their Applications in Diabetes Management

2008

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“…Figure 3a shows the potential-time waveform of ASV. In the first step, Pt 3 PdNPs/RGO modified GCE was maintained at 0.67 V for 15 s. At this potential, high catalytically active PtO formed to electrooxidation the absorbents and generated a clean surface of the Pt 3 PdNPs/RGO when the potential was low enough to reduce the PtO formed [20]. Next, the potential was set to −0.45 V to concentrate glucose on the surface of the Pt 3 PdNPs/RGO.…”

Section: Electrocatalytic Oxidation and The Asv Detection Of Glucosementioning

confidence: 99%

“…At a potential lower than −0.3 V (vs a saturated calomel electrode), dehydrogenation of the glucose molecule at the hemiacetalic carbon 1 atom (C1) occurs, and adsorption of the glucose molecule onto the Pt surface follows. When the potential is positively moved forward, accompanied by the generation of catalytically active OH ads and subsequently PtO, catalytic oxidation of the absorbed glucose and the bulk glucose solution occur, and the two anodic oxidation current peaks are used to quantify the glucose concentration [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive non-enzymatic glucose sensing at near-neutral pH values via anodic stripping voltammetry using a glassy carbon electrode modified with Pt3Pd nanoparticles and reduced graphene oxide

Li¹,

Cai

et al. 2015

Microchim Acta

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We describe an anodic stripping voltammetric (ASV) method for glucose sensing that widely expands the typical amperometric i-t response of glucose sensors. The electrode is based on a working electrode consisting of a glassy carbon electrode modified with Pt-Pd nanoparticles (NPs; in an atomic ratio of 3:1) on a reduced graphene oxide (rGO) support. The material was prepared via the spontaneous redox reaction between rGO, PdCl 4 2− and PtCl 4 2− without any additional reductant or surfactant. Unlike known Pt-based sensors, the use of Pt 3 Pd NPs results in an ultrasensitive ASV approach for sensing glucose even at near-neutral pH values. If operated at a working voltage as low as 0.06 V (vs. SCE), the modified electrode can detect glucose in the 2 nM to 300 μM concentration range. The lowest detectable concentration is 2 nM which is much lower than the LODs obtained with other amperometric i-t type sensing approaches, most of which have LODs at a μM level. The sensor is not interfered by the presence of 0.1 M of NaCl.

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“…Generally, there is no agreement in literature regarding the nature of the poisoning species [79]. Early studies indicated the reaction product gluconic acid [80] to be the poisoning species, whereas later works identified linear CO and bridged CO as adsorbates, depending on the pH [81,82].…”

Section: Factors Affecting Long-term Operationmentioning

confidence: 99%

Abiotic (Nonenzymatic) Implantable Biofuel Cells

Kerzenmacher

2014

Implantable Bioelectronics

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Studies of Electrooxidation of Dextrose in Neutral Media

Cited by 103 publications

References 1 publication

Electrochemical Glucose Sensors and Their Applications in Diabetes Management

Electrochemical Glucose Sensors and Their Applications in Diabetes Management

Ultrasensitive non-enzymatic glucose sensing at near-neutral pH values via anodic stripping voltammetry using a glassy carbon electrode modified with Pt3Pd nanoparticles and reduced graphene oxide

Abiotic (Nonenzymatic) Implantable Biofuel Cells

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