April 23, 2024 3:03 pm
New method developed by researchers allows for blood glucose measurement using smartphone  | Technology News

A recent study published in the journal Nature Communications has shown that modern cellphones can be used to accurately measure blood glucose levels. The US government’s National Institute of Standards and Technology (NIST) has introduced a new technique that leverages the magnetometer on standard cellphones to detect changes in magnetic field strength, which can be used to measure blood glucose concentrations and other biomarkers.

Modern cellphones are equipped with magnetometers that function as compasses by detecting Earth’s magnetic field. Researchers have found a novel use for this feature by attaching a small container with a solution, representing blood, and a hydrogel strip to the cellphone. Hydrogel is a porous material that expands when exposed to water. By incorporating magnetic particles into the hydrogel and modifying it to respond to glucose or pH levels, the researchers could detect changes in magnetic field strength using the phone’s magnetometer.

The NIST team believes that this technology could lead to cost-effective glucose monitoring solutions that are easily accessible. The smart hydrogels used in the study are affordable and simple to manufacture, making them potential candidates for commercial test kits that could be attached to smartphones for glucose level measurements. By utilizing existing smartphone technology, this approach offers a low-cost alternative to current glucose monitoring devices.

The study results showcase the potential of using smartphones for innovative healthcare applications and could pave the way for convenient and affordable at-home monitoring of blood glucose levels, offering a promising solution for individuals with diabetes and other health conditions.

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