Russian University Develops Advanced Technology for Non-Invasive Blood Sugar Monitoring

A team of researchers at Saratov State University in Russia has successfully developed an innovative sensor that can measure glucose levels in the body without piercing the skin — a promising breakthrough that could revolutionize diabetes monitoring.

This next-generation device enables real-time and highly accurate detection of blood sugar fluctuations. It spares patients the pain of traditional finger-prick tests and provides doctors with more detailed data on daily glucose variations.

The sensor is made of a flexible, highly breathable polyacrylonitrile material coated with silver nanoparticles, which amplify the glucose light signals using surface-enhanced Raman scattering technology. This allows for the detection of even the slightest changes in sugar levels. The sensor is also coated with glucose oxidase, an enzyme that reacts directly with the target molecules.

During laboratory tests, the device proved effective in detecting glucose concentrations in water and artificial sweat samples ranging from 1 to 10 mmol/L — covering both normal and high blood sugar levels.

Olga Gouslyakova, a researcher at the university’s Biomedical Optoacoustics Laboratory, explained that the microscopic structure of the nonwoven fibers controls light properties and enhances measurement sensitivity while maintaining flexibility and ease of daily use. This makes it a strong candidate for the future development of non-invasive glucose monitoring devices.