The Effects of Silicone Enclosure Colour on the Function of Optical Sensors

Biology

Shahbaz Askari¹  Sadra Khosravi¹  Babak Shadgan¹  Garrett Frank¹  Katharina Raschdorf¹  Brian K. Kwon¹ 

[1] International Collaboration on Repair Discoveries, 818 West 10th Avenue, Vancouver, BC V5Z 1M9, Canada;

关键词: implantable;    biosensor;    phantom;    diagnostics;    direct measurement;    absorption;   

DOI  :  10.3390/biology11060932

来源: DOAJ

【 摘 要 】

The colour of the silicone enclosure of an implantable reflectance-based optical probe plays a critical role in sensor performance. Red-coloured probes that are highly reflective to near-infrared light have been found to increase photodetector power by a factor of 6 for wavelengths between 660 and 950 nm and triple the magnitude of measured cardiac pulsations compared to traditional black probes. The increase in photodetector power and cardiac pulsation magnitude is presumably due to increased spatial range resulting from a higher magnitude of superficial tissue scattering. Conversely, probes with highly absorbent colours such as black and blue result in more stable signals and are expected to have higher spatial resolution and depth of penetration.

【 授权许可】

Unknown