Results 211 to 220 of about 116,203 (264)
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ASAIO Journal, 1995
A major problem in development of a glucose sensor for use in an implantable artificial pancreas is the lack of reproducibility in signals from sensor to sensor. Each glucose sensor fabricated with currently used methods has a unique response to varying levels of glucose concentration and thus needs to be individually calibrated before use.
J F, Patzer +5 more
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A major problem in development of a glucose sensor for use in an implantable artificial pancreas is the lack of reproducibility in signals from sensor to sensor. Each glucose sensor fabricated with currently used methods has a unique response to varying levels of glucose concentration and thus needs to be individually calibrated before use.
J F, Patzer +5 more
openaire +2 more sources
Fluorescence-based glucose sensors
Biosensors and Bioelectronics, 2005There is an urgent need to develop technology for continuous in vivo glucose monitoring in subjects with diabetes mellitus. Problems with existing devices based on electrochemistry have encouraged alternative approaches to glucose sensing in recent years, and those based on fluorescence intensity and lifetime have special advantages, including ...
Pickup, John C. +4 more
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Implanted Electroenzymatic Glucose Sensors
Diabetes Care, 1982The advent of electrochemical sensors for intermittent sampling of blood gases and hydrogen ions in the clinic, intensive care, and surgical units has revolutionized diagnostic and critical care medical technics. The use of electrochemical sensors for continuous transcutaneous monitoring of blood gases is further enhancing the medical surveillance of ...
L C, Clark, C A, Duggan
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Intraocular Lens Glucose Sensor
Diabetes Technology & Therapeutics, 2000Ocular spectroscopy, which is the use of the eye to monitor optically the concentration of metabolites in the body, has been successfully applied to monitor aqueous humor glucose concentration. In the United States, 1.7 million intraocular lenses are currently implanted yearly.
W F, March, K, Ochsner, J, Horna
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SPIE Proceedings, 1987
Oxygen concentration has been measured using fluorescence quenching in solid polymer hosts. The feasibility of generalizing these oxygen transducers to a wider class of chemical sensors through coupling to other chemistries is proposed. An example of such coupling is given in a glucose/oxygen transducer. The glucose transducer is produced by entrapping
J. W. Parker, M. E. Cox
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Oxygen concentration has been measured using fluorescence quenching in solid polymer hosts. The feasibility of generalizing these oxygen transducers to a wider class of chemical sensors through coupling to other chemistries is proposed. An example of such coupling is given in a glucose/oxygen transducer. The glucose transducer is produced by entrapping
J. W. Parker, M. E. Cox
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Potentiometric glucose sensors.
Hormone and metabolic research. Supplement series, 1989The determination of glucose is possible with the enzymatic reaction of glucose oxidase and potentiometric detection. The signal is proportional to the concentration up to 50 mg/dl. This value is fixed by the concentration of oxygen in the sample. By adding catalase, concentrations up to 2000 mg/dl are detectable. The steepness of the calibration curve
Honold, F., Cammann, K.
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Biosensors and Bioelectronics, 1996
Abstract Until now the enzyme membrane in micro-enzyme sensors has been deposited on the top of the transducer. In such sensors problems are often caused by membrane adhesion and the mechanical stability of the membrane. Furthermore, a place-selective deposition of the membrane material, which is a precondition for the development of multi-functional
R Steinkuhl +6 more
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Abstract Until now the enzyme membrane in micro-enzyme sensors has been deposited on the top of the transducer. In such sensors problems are often caused by membrane adhesion and the mechanical stability of the membrane. Furthermore, a place-selective deposition of the membrane material, which is a precondition for the development of multi-functional
R Steinkuhl +6 more
openaire +1 more source
Implantable Continuous Glucose Sensors
Current Diabetes Reviews, 2008Because of the limits of wearable needle-type or microdialysis-based enzymatic sensors in clinical use, fully implantable glucose monitoring systems (IGMS) represent a promising alternative. Long-term use reducing impact of invasiveness due to implantation, less frequent calibration needs because of a more stable tissue environment around the sensor ...
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Coated glucose sensors dodge recalibration
Nature Biomedical Engineering, 2018Coating continuous glucose-monitoring sensors with zwitterionic polymer reduces early inflammatory responses and signal noise after sensor implantation in live animals, and improves the performance of the sensors without the need for additional recalibration.
Ershuai, Zhang, Zhiqiang, Cao
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Acta Medica Scandinavica, 1983
ABSTRACT. This review goes through the development of the glucose‐controlled insulin infusion systems. The closed‐loop system, Biostator®, is described with discussion of demands on technique and function. It deals with the applicability of the glucose sensor in normalizing the diabetic mal‐metabolism and selection of any glucose control wanted in ...
S E, Christensen +3 more
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ABSTRACT. This review goes through the development of the glucose‐controlled insulin infusion systems. The closed‐loop system, Biostator®, is described with discussion of demands on technique and function. It deals with the applicability of the glucose sensor in normalizing the diabetic mal‐metabolism and selection of any glucose control wanted in ...
S E, Christensen +3 more
openaire +2 more sources