Z-Scan technique: To measure the total protein and albumin in blood

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Z-Scan technique: To measure the total protein and albumin in blood

Z-scan technique is an effective tool for measuring the optical nonlinearity of the materials. By using this technique the measurement was made for total protein and albumin. The nonlinear refractive index of the total protein and albumin were found to vary linearly with concentration. Hence by calculating the nonlinear refractive index it is possible to measure their concentration in the sampl...

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Nonlinear Optical Investigation of Biochemical Analytes in Blood Serum via Z-Scan Technique

Background and Aims: Biomolecules' optical and nonlinear optical properties are widely used for different medical diagnoses and applications in biophotonic devices. These properties are essential in studying biological processes in living tissues. Aside from biomolecules' linear optical characteristics, their nonlinear optical characteristics have lately been considered. Materials and Methods:...

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Photoexcited Carrier Lifetime and Refractive Nonlinearity in Direct and Indirect Band Gap Crystals on the Z-Scan Technique

The Photoexcited carrier lifetime (τ) and peak to valley transmission difference (ΔTp-v) in direct and indirect band gap crystals has been investigated by the use of single beam open and closed aperture z-scan technique using frequency doubled Nd:YAG laser. The peak to valley transmission difference (ΔTp-v) is found to be of the order of 10-2 in case of direct band gap crystals and of the order...

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Single-beam differential z-scan technique.

We report a single-beam, differential z-scan technique with improved sensitivity for the determination of nonlinear absorption and refraction of materials. A sample is scanned in the direction of beam propagation as usual, but, in addition, its longitudinal position is dithered, producing a detector signal proportional to the spatial derivative of only the nonlinear transmission and therefore g...

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The Comparison of Total protein,Albumin and Phosphorus Level in Preeclamptic Pregnant Women and Women with Normal Pregnancy

Introduction:preeclampsia has remained one of the important obstetrical problems for which different factors have been suggested.decrease of serum levels of albumin,total protein and phosphorous have been suggested in the pathophysiology of precclampsia.the aim of this study was to determine serum levels of albumin,total protein and phosphorous in normal pregnancy and preeclamptic woman.   Me...

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ژورنال

عنوان ژورنال: Journal of Biomedical Science and Engineering

سال: 2010

ISSN: 1937-6871,1937-688X

DOI: 10.4236/jbise.2010.33038