Abstract
In this study, a new optical method is presented to determine the concentrations of NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope. By measuring the microwave near-field distribution intensity, concentration changes of NaCl and glucose aqueous solutions were detected in the 0–100 mg/ml range, when exposed to microwave irradiation at 12 GHz frequency. Microwave near-field distribution intensity decreased as the NaCl or glucose concentration increased due to the changes of the absorption properties of aqueous solution. This method provides a novel approach for monitoring NaCl and glucose in biological liquids by using a CCD sensor capable of visualizing NaCl and glucose concentrations without scanning.
Highlights
In this study, a new optical method is presented to determine the concentrations of NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope
Using molecular dynamics (MD) simulation interfaces, researchers investigated the behaviors of polar aqueous solutions upon microwave heating[41,42], dissociation processes[43], dynamical couplings between ions and solvent molecules, and the dependence of solvent dynamical properties on ion c oncentrations[44]
The magnetic microwave near-field (H-MWNF) distribution was visualized around NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope (TEOIM) technique
Summary
A new optical method is presented to determine the concentrations of NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope. Easy configuration of the experimental setup and an optical way of visualization of microwave near field without scanning are the advantages of TEOIM method This technique has some similarity to the colorimetric analysis method[45,46,47], where the main difference is that TEOIM provides concentration detection in the microwave range. This study can be a paradigm for future researches, and the TEOIM visualization system can be a practical tool for non-invasive and in-vivo blood analysis It can be a practical and useful tool to characterize the dynamic properties of complex liquids, to determine aqueous solution concentration changes and understand the behavior of liquid interaction with the electromagnetic field and microwave heating
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