New method developed by researchers allows for blood glucose measurement using smartphone  | Technology News

Revolutionizing Glucose Monitoring with Smartphones: How NIST Leverages Magnetometers for Cost-Effective Healthcare Solutions

Recently, the National Institute of Standards and Technology (NIST) unveiled a new technique that employs a standard cellphone’s magnetometer to precisely measure blood glucose levels. Modern smartphones are equipped with magnetometers that function as compasses by detecting Earth’s magnetic field. Researchers have discovered an innovative use for this feature in analyzing blood glucose concentrations and other biomarkers.

In their proof of concept study, the researchers attached a small container containing 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. This approach offers a low-cost alternative to current glucose monitoring devices, which can be expensive and difficult for individuals with diabetes and other health conditions to access at home.

The study results have been published in the journal Nature Communications, highlighting the potential of using smartphones for innovative healthcare applications. This advancement has the potential to revolutionize at-home monitoring of blood glucose levels, providing a promising solution for individuals with diabetes and other health conditions who require regular monitoring of their glucose levels.

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