Vidcast:  https://youtu.be/O3lUQSeRkFA

 

UC-San Diego have developed a skin patch that continually measures your oxygen-carrying hemoglobin not just in your skin but in deeper locations like your vital organs.  The patch works by combining micro lasers and piezoelectric transducers that monitor the acoustic waves generate by the laser energy.  

 

Too little hemoglobin as a measure of blood perfusion can indicate heart attack or extremity vascular disease.  An overabundance of blood suggests bleeding or tumors including cancer.  This same information is available with MRI imaging, but that requires large, non-mobile equipment and makes continuous monitoring awkward if not impossible.

 

https://www.nature.com/articles/s41467-022-35455-3

 

#hemoglobin #laser #piezoelectric #cancer #cardiovascular