Laser-Based Sensor Could Replace Invasive Blood Analysis Methods

Researchers have created a broadband laser-based sensor that can remotely detect the concentration level of key blood components like lactate, glucose, urea, ketones, or ethanol without drawing blood to make noninvasive blood analysis possible. Chronic disease patients, such as those with diabetes, won’t have to repeatedly prick their fingers to check their blood glucose levels once the technology has received regulatory clearance and is incorporated into small devices.

The laser-based sensor technology’s spectral band has largely remained unexplored. Carbon, oxygen, hydrogen, and nitrogen are the four discrete elements of every molecule, including lactate and glucose. The geometrical arrangement of these atoms is distinctive. An atom moves at specific frequencies in response to its surroundings; these frequencies are known as molecular fingerprints and can be detected with laser light.

Researchers can distinguish between various molecules by measuring these vibrations thanks to molecular fingerprints. The laser’s ability to conduct research from a distance makes it special. The item receives the laser light, which then interacts with the object’s components. After being diffusely reflected back, the system gathers the light. The analysis is done on the object-specific data in the reflected light. Using this technique, they can examine distant objects in the liquid, gas, or solid phases.

Read more

Related Content: Light-Scattering Method Maps Tumors