COLUMBIA, Mo. – Researchers from the University of Missouri School of Medicine and Massachusetts Institute of Technology have developed a device that measures blood glucose without having to draw blood.
The Raman spectroscopy proved just as accurate as a finger prick test in testing, according to a paper published in Analytical and Bioanalytical Chemistry.
“We know that handheld skin prick tests are not always accurate and may be uncomfortable for patients,” said Jeon Woong Kang, an MIT researcher, in a statement. “We were pleased to find that our initial results show Raman spectroscopy can measure glucose levels that are comparable to the finger stick devices.”
The device measures the chemical composition of skin and extracts the amount of glucose out of other skin compartments. A fiber-optic cable attached to a wristband passes laser light onto the skin to detect different components in the skin, such as fat tissue, protein, collagen and glucose molecules. The shifts in wavelengths associated with glucose present in the blood creates a sort of molecular fingerprint that can be used to determine glucose levels.
The researchers hope to refine the technology to be a noninvasive continuous glucose monitoring sensor, Kang said.