Quantitative effect of temperature to the absorbance of aqueous glucose in wavelength range from 1200 nm to 1700 nm

Cui, Houxin; An, Lin; Chen, Wenliang

doi:10.1117/12.710929

Cited by 8 publications

(7 citation statements)

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“…The quantitative effect of temperature to the absorbance of aqueous glucose was investigated by Cui et.al. 28 The results showed that the absorption of aqueous glucose decreases with the increasing of temperature, also the absorbance decreases. In addition, only 1°C change in the temperature induces about -7x10 -3 and -4.10 -3 errors in the absorbance of the aqueous glucose at the wavelength of 1550 nm, 1610 nm respectively.…”

Section: Resultsmentioning

confidence: 94%

Near-infrared absorbance measurements of hemoglobin solutions incubated with glucose

Zhernovaya

Tuchin

Meglinski

et al. 2007

Complex Dynamics and Fluctuations in Biomedical Photonics IV

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It is known that glucose influences on spectral properties of blood and hemoglobin and interacts with plasma proteins and hemoglobin in erythrocytes. Changes of optical properties of blood and hemoglobin at glucose concentration within physiological level are important for diagnosis and monitoring of diabetes. The purpose of this study is to investigate the effect of presence of glucose and glycation of hemoglobin on absorbance of aqueous hemoglobin solutions with different glucose concentrations. Measurements were taken using spectrophotometer EQUINOX 55 (Bruker Optic GmbH) in a range 1000-1800 nm.Water has absorption bands in the near-infrared region which may be influenced by glucose presence. We have hypothesized that glucose and hemoglobin, especially glycated hemoglobin, may influence the absorption band of water in solution. The hemoglobin solutions with different amount of glucose (from 0 to 1000 mg/dl with a step 100 mg/dl) were incubated up to 28 days. Our measurements show that presence of glucose affects the spectra of aqueous hemoglobin solutions. The magnitude of absorbance depends on glucose concentration. At the beginning of incubation hemoglobin solution without glucose has the lowest absorbance magnitude, but after a rather long time of incubation (28 days) the absorbance of hemoglobin solutions with glucose become smaller compared to the absorbance of hemoglobin solution without glucose. This fact may be explained by assumption of hemoglobin glycation, when glucose molecules chemically bind to hemoglobin, and water binding to hemoglobin. In the case of water binding to hemoglobin molecules the amount of free water molecules in solution decreases, so the water aborbance is excepted to decrease.

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Section: Resultsmentioning

confidence: 94%

Near-infrared absorbance measurements of hemoglobin solutions incubated with glucose

Zhernovaya

Tuchin

Meglinski

et al. 2007

Complex Dynamics and Fluctuations in Biomedical Photonics IV

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“…The temperature dependence has been known in NIR spectrometry in biomedical, agricultural, and polymer sciences, but it has usually been regarded as a disturbance. While some experimenters have made use of it to measure the temperature of various samples that contain water (Kakuta et al [42]; Lin and Brown [44]; Hollis et al [47]; Otal et al [48]; Thomson et al [49]), others have tried to cancel out the temperature effect in noninvasive measurements of glucose concentration (Arimoto et al [50]; Jensen et al [51]; Ye et al [52]; Cui et al [53]). …”

Section: Temperature Monitoring Of Small Amounts Of Liquidmentioning

confidence: 97%

Infrared temperature measurements in micro-channels and micro-fluid systems

Hetsroni

Mosyak

Pogrebnyak

et al. 2011

International Journal of Thermal Sciences

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“…The temperature dependence has been known in NIR spectrometry in biomedical, agricultural, and polymer sciences, but it has usually been regarded as a disturbance. While some experimenters have made use of it to measure the temperature of various samples that contain water [23,25,[28][29][30], others have tried to cancel out the temperature effect in noninvasive measurements of glucose concentration in vivo [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%