Controller for a Continuous Near Infrared Glucose Sensor

2005 ◽  
Author(s):  
Kiran Kanukurthy ◽  
Usha Viswanathan ◽  
David Andersen ◽  
Jon Olesberg ◽  
Mark Arnold ◽  
...  
Keyword(s):  
Near Infrared ◽  
Glucose Sensor

Microwave-assisted Synthesis of Near-infrared-luminescent Ovalbumin-protected Gold Nanoparticles as a Luminescent Glucose Sensor

2014 ◽  
Vol 43 (6) ◽  
pp. 793-795 ◽  
Author(s):  
Junya Yoshimoto ◽  
Naoki Tanaka ◽  
Mitsuru Inada ◽  
Ryuichi Arakawa ◽  
Hideya Kawasaki
Keyword(s):  
Gold Nanoparticles ◽  
Near Infrared ◽  
Glucose Sensor ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

Variable Selection in Multivariate Calibration of a Spectroscopic Glucose Sensor

1997 ◽  
Vol 51 (10) ◽  
pp. 1559-1564 ◽  
Author(s):  
Michael J. McShane ◽  
Gerard L. Coté ◽  
Clifford Spiegelman
Keyword(s):  
Variable Selection ◽  
Near Infrared ◽  
Glucose Sensor ◽  
Multivariate Calibration ◽  
Glucose Absorption ◽  
Calibration Data ◽  
Least Squares Regression ◽  
Peak Areas ◽  
Ph Buffer ◽  
Prediction Capability

A variable selection method that reduces prediction bias in partial least-squares regression models was developed and applied to near-infrared absorbance spectra of glucose in pH buffer and cell culture medium. Comparisons between calibration and prediction capability for full spectra and reduced sets were completed. Variable selection resulted in statistically equivalent errors while reducing the number of wavelengths needed to fit the calibration data and predict concentrations from new spectra. Fewer than 25 wavelengths were selected to produce errors statistically equivalent to those yielded by the full set containing over 500 wavelengths. The algorithm correctly chose the glucose absorption peak areas as the information-carrying spectral regions.

Capillary Recruitment for Preservation of Cerebral Glucose Influx in Hypoglycemic, Preterm Newborns: Evidence for a Glucose Sensor?

PEDIATRICS ◽  
1992 ◽  
Vol 90 (2) ◽  
pp. 193-195
Author(s):  
L. Skov ◽  
O. Pryds
Keyword(s):  
Blood Volume ◽  
Near Infrared ◽  
Cerebral Blood Volume ◽  
Glucose Sensor ◽  
Blood Glucose Concentration ◽  
Blood Gas ◽  
Capillary Recruitment ◽  
Glucose Levels ◽  
Arterial Blood ◽  
Preterm Newborns

Changes in cerebral blood volume (CBV) were investigated by means of near-infrared spectroscopy in 18 preterm newborns during treatment with intravenous bolus glucose. All newborns were breathing spontaneously, and their postnatal age was 2 hours. Blood glucose concentration ranged between 0.3 and 2.2 mmol/L. Cerebral blood volume began to decrease shortly after the glucose infusion was terminated, and steady state was obtained after approximately 3 minutes. The decrease in CBV averaged 0.15 mL/100 g (range 0.02 to 0.40 mL/100 g). Thereafter, CBV remained constant. Individual reductions in CBV were inversely related to the pretreatment concentration of glucose, whereas there was no relation between changes in CBV and alterations in blood gas values or in mean arterial blood pressure. It is suggested that previously unperfused capillaries are recruited to maintain the glucose transport into neurons of hypoglycemic, preterm newborns. The rapidity whereby vessels adjust to alterations in glucose levels indicates the existence of a cerebral glucose sensor.

Near-infrared bulk optical properties of goat wound tissue and human serum: consequences for an implantable optical glucose sensor

2015 ◽  
Vol 9 (10) ◽  
pp. 1033-1043 ◽  
Author(s):  
Ben Aernouts ◽  
Sandeep Sharma ◽  
Karolien Gellynck ◽  
Lieven Vlaminck ◽  
Maria Cornelissen ◽  
...  
Keyword(s):  
Optical Properties ◽  
Human Serum ◽  
Near Infrared ◽  
Glucose Sensor ◽  
Optical Glucose Sensor ◽  
Wound Tissue

A near infrared holographic glucose sensor

2015 ◽  
Vol 68 ◽  
pp. 371-381 ◽  
Author(s):  
Evangelia Vezouviou ◽  
Christopher R. Lowe
Keyword(s):  
Near Infrared ◽  
Glucose Sensor

Low-voltage field-emission SEM of polymeric membranes for glucose biosensors

1990 ◽  
Vol 48 (3) ◽  
pp. 860-861
Author(s):  
Lorna K. Mayo ◽  
Kenneth C. Moore ◽  
Mark A. Arnold
Keyword(s):  
Glucose Sensor ◽  
Low Voltage ◽  
Glucose Sensors ◽  
Polymeric Membranes ◽  
Artificial Endocrine Pancreas ◽  
Self Monitoring ◽  
Conducting Materials ◽  
Insulin Dependent ◽  
Living Tissues ◽  
Voltage Scanning

An implantable artificial endocrine pancreas consisting of a glucose sensor and a closed-loop insulin delivery system could potentially replace the need for glucose self-monitoring and regulation among insulin dependent diabetics. Achieving such a break through largely depends on the development of an appropriate, biocompatible membrane for the sensor. Biocompatibility is crucial since changes in the glucose sensors membrane resulting from attack by orinter action with living tissues can interfere with sensor reliability and accuracy. If such interactions can be understood, however, compensations can be made for their effects. Current polymer technology offers several possible membranes that meet the unique chemical dynamics required of a glucose sensor. Two of the most promising polymer membranes are polytetrafluoroethylene (PTFE) and silicone (Si). Low-voltage scanning electron microscopy, which is an excellent technique for characterizing a variety of polymeric and non-conducting materials, 27 was applied to the examination of experimental sensor membranes.

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