Researchers at the Institute of Science (IISS) Institute of Science (IISS) have developed painless, useless alternative to traditional blood sugar monitoring, using PhotoCoustic sensing, laser-based technology.
People with diabetes are now needed to test their glucose level during the day using invasive methods that attract needle guts, which can be uncomfortable and increased the risk of infections. New techniques to measure glucose concentrations have been developed by scientists from the Faculty of Instrumentation and Applied Physics (IAP).
Photoacoustic sensing includes a laser beam of biological tissue that absorbs the light and feels a slight increase in temperature (less than 1 ┬░ C). This results in the creation of tissue expansion and contraction, ultrasound sound waves found with sensitive tools. Different molecules absorb light on different wavelengths, producing a unique sound wave examples. This technique allows you to detect accurate detection without causing damage to tissue.
The researchers used a polarized light to analyze glucose concentrations. Glucose, being a sweat molecule, changes the orientation of polarized light fluctuations. The team found that this change affected the intensity of the sound signal caused by the tissues. Measuring these voice signals, researchers can assess glucose concentrations with almost clinical accuracy of water and serum solutions, as well as in animal tissue samples.
“We don’t really know why the sound signal changes when we change the state of polarization, but we create a relationship with a certain wavelength.
The team also successfully measured the glucose level in different depths of the tissue. As the sound waves do not scatter in the tissue significantly, researchers could get accurate readings in different layers.
A pilot study has been conducted using techniques before and after three days of meals to track blood glucose levels during the meal. Although the current laser source is hard and expensive, researchers work more compact and practical clinical applications.
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“This experience was difficult, especially in installing the right equipment. We now use a laser that causes very small now.
Out of glucose detection, researchers believe that technique can be used to detect other Kurdish molecules, including usual drugs like Naproxen, anti-inflammatory drug.
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