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Dive into the research topics where William P. Van Antwerp is active.

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Featured researches published by William P. Van Antwerp.


Sensors and Actuators B-chemical | 2002

Ruthenium bipyridine complexes for the recognition of glucose

Douglas R. Cary; Christopher B. Darrow; Stephen M. Lane; Thomas A. Peyser; Joe H. Satcher; William P. Van Antwerp; A. J. Nelson; John G. Reynolds

Bipyridine ligands containing pendant methyl, amino, and amino-boronic acid groups were synthesized. Coordination complexes of these ligands with rhenium were prepared straightforwardly and in good yield. The fluorescence behavior of the Re complexes was studied as a function of pH and exposure to various concentrations of glucose. The methyl bipyridine complex showed no change in fluorescence with pH, the amino derivative showed a rapid decrease from low pH to neutral, and the amino-boronate derivative showed little change from pH 4 to 10. Fluorescence quenching was observed at high pH as expected on the basis of a photoinduced electron transfer (PET) signaling mechanism. This behavior can be explained on the basis of the first oxidation and reduction potentials of these complexes. Glucose testing showed a significant dependence on the solvent system used. In pure methanol, the rhenium boronate complex exhibited a 55% fluorescence intensity increase upon increasing glucose concentration from 0 to 400 mg/dL. However, in 50 vol % methanol/phosphate buffered saline, none of the complexes showed significant response in the glucose range of physiological interest.


Archive | 1994

Method of fabricating thin film sensors

S. Cheney Ii Paul; William P. Van Antwerp


Archive | 2003

Reusable analyte sensor site and method of using the same

Bahar Reghabi; Rajiv Shah; Eunjoo Jin; Rebecca K. Gottlieb; Michael E. Miller; Nannette M. Van Antwerp; Bradley J. Enegren; William P. Van Antwerp; John J. Mastrototaro


Archive | 1994

Flex circuit connector

Peter C. Lord; William P. Van Antwerp; John J. Mastrototaro; S. Cheney Ii Paul; Nannette M Schnabel


American Journal of Physiology-endocrinology and Metabolism | 1999

Subcutaneous glucose predicts plasma glucose independent of insulin: implications for continuous monitoring

Kerstin Rebrin; Garry M. Steil; William P. Van Antwerp; John J. Mastrototaro


Archive | 1996

Detection of biological molecules using chemical amplification and optical sensors

William P. Van Antwerp; John J. Mastrototaro


Archive | 1997

Hydrophilic, swellable coatings for biosensors

William P. Van Antwerp; Christian C. Decker; John J. Mastrototaro


Archive | 2001

Analyte sensor method of making the same

James D. Holker; Guillermo A. Calle; Kevin D. Branch; John J. Mastrototaro; William P. Van Antwerp; Nannette M. Van Antwerp


Archive | 1996

Detection of biological molecules using boronate-based chemical amplification and optical sensors

William P. Van Antwerp; John J. Mastrototaro; Stephen M. Lane; Joe H. Satcher; Christopher B. Darrow; Thomas A. Peyser; Jennifer Harder


Archive | 1997

Constant flow medication infusion pump

Alfred E. Mann; Magdi F. Valencia Habib; Susan M. Mcconnell; William P. Van Antwerp; Peter C. Lord

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Christopher B. Darrow

Lawrence Livermore National Laboratory

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Joe H. Satcher

Lawrence Livermore National Laboratory

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Thomas A. Peyser

Lawrence Livermore National Laboratory

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A. J. Nelson

Lawrence Livermore National Laboratory

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Douglas R. Cary

Lawrence Livermore National Laboratory

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Garry M. Steil

Boston Children's Hospital

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John G. Reynolds

Lawrence Livermore National Laboratory

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Kerstin Rebrin

University of Southern California

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