photonic biosensors

Photonic biosensors are devices that detect biological substances through interactions with light. They use precise optical components, such as tiny fibers or surfaces, to sense changes in light properties—like intensity, wavelength, or phase—cained by the presence of specific molecules, such as proteins or DNA. When target molecules bind to the sensor’s surface, they cause measurable changes in the light signal, allowing for sensitive and rapid detection. These sensors are valuable in medical diagnostics, environmental monitoring, and food safety because they provide accurate, real-time data with minimal sample preparation.