Defining the Period of Recovery of the Glucose Concentration after Its Local Perturbation by the Implantation of a Miniature Sensor
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Ting Chen
Abstract
At the wound caused by implanting a subcutaneous glucose sensor, the concentration of glucose differs transiently from that in the subcutaneous fluid near non-wounded skin. The period of recovery differs for different wounds and is difficult to predict. A diabetic patient implanting a subcutaneous sensor needs to know whether the transient difference subsided sufficiently for the sensor readings and the sensor's in vivo calibration to be valid. The miniature amperometric glucose sensor has a compound membrane including a layer of glucose oxidase the reaction centers of which are electrically connected to the electrode through a redox polymer; layers excluding interferents and poisons of the electrocatalytic oxidation of glucose; and a layer reducing fouling by components of the biological fluids. We show that the sensor maintains its in vitro sensitivity after its implantation for four hours in the jugular vein and in the peritoneal fluid of the rat. For a diabetic patient who implants the sensor the four-hour period is long enough for the insertion-trauma-caused local perturbation of the glucose concentration to subside and to safely rely on the readings of the implanted sensor.
Copyright © 2002 by Walter de Gruyter GmbH & Co. KG
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- Meetings and Awards
Articles in the same Issue
- SIBioC 2002 - 34th National Congress of the Italian Society of Clinical Biochemistry and Clinical Molecular Biology, Rimini, Italy, 17-20 September 2002
- Santorini Biologie Prospective Conference 2002 From Genetic Variations to Risk Prediction and Pharmacogenomics Santorini, Greece, 25-28 September 2002
- CCLM Special Issue on Diabetes Mellitus - Call for Papers
- Pathophysiological and Clinical Relevance of Circulating Levels of Cardiac Natriuretic Hormones: Are They Merely Markers of Cardiac Disease?
- Comparative Measurement of N-Terminal Pro-Brain Natriuretic Peptide and Brain Natriuretic Peptide in Ambulatory Patients with Heart Failure
- Tumor Necrosis Factor-α-Induced Accumulation of Tumor Suppressor Protein p53 and Cyclin-dependent Protein Kinase Inhibitory Protein p21 Is Inhibited by Insulin in ME-180S Cells
- Inflammatory Response to Coronary Stent Implantation in Patients with Unstable Angina
- Immature Granulocyte Count after Liver Transplantation
- An Ideal Substrate for the Measurement of Pancreatic Amylase?
- Defining the Period of Recovery of the Glucose Concentration after Its Local Perturbation by the Implantation of a Miniature Sensor
- Measurement of Serum β-Crosslaps Is Influenced by Proteolytic Conditions
- Quantitative Determination of Faecal Fatty Acids and Triglycerides by Fourier Transform Infrared Analysis with a Sodium Chloride Transmission Flow Cell
- Rapid Identification of Atypical Variant of Plasma Butyrylcholinesterase by PCR
- Determination of Nitrite Plus Nitrate and Malondialdehyde in Human Plasma: Analytical Performance and the Effect of Smoking and Exercise
- Iron Status in Black Persons Is Not Influenced by Haptoglobin Polymorphism
- Molecular Characterization of Glucose-6-Phosphate Dehydrogenase Deficiency in the Eastern Province of Saudi Arabia
- Comparison of Urine Cell Characteristics by Flow Cytometry and Cytology in Patients Suspected of Having Bladder Cancer
- Clinical Validation of a Fully Automated 17β-Estradiol and Progesterone Assay (VIDAS®) for Use in Monitoring Assisted Reproduction Treatment
- Evaluation of a Commercially Available Serologic Assay for Antibodies against Tuberculosis-associated Glycolipid Antigen
- Evaluation of Two Modified Cardiac Troponin I Enzyme Immunoassays
- Evaluation of Denka-Seiken Turbidimetric High-Sensitivity C-Reactive Protein Assay
- Amiodarone and Desethylamiodarone Bind to Barrier Gels in Serum Separator Blood Collection Tubes
- A Novel Explanation for Low Alanine Aminotransferase Activity in Human Serum Caused by IgG Inhibitor
- Serum Total Antioxidant Status Is Higher in Postmenopausal Women and after Estrogen Replacement Therapy
- Immunoturbidimetric Assay for Serum Cystatin C Using the Cobas Fara Analyzer
- Meetings and Awards