Africk S. – TechConnect Briefs

Ultrasonic Pulsed Doppler, a Novel Method for Nanoparticle Characterization

Africk S., Prodyne Corp., US

USPD is a unique ultrasonic backscatter technology for the characterization of nanoparticles. Particles are interrogated in motion and the backscattered energy is received at Doppler-shifted frequencies, allowing clutter-free detection of backscatter from particles in the [...]

A Novel Ultrasonic Method for Characterizing Suspensions of Nanoparticles

Africk S., Colton C.K., Prodyne Corp. and Massachusetts Institute of Technology, US

Originally developed to measure concentration of human Islets of Langerhans in transplant preparations, the Ultrasonic Pulsed Doppler (USPD) method uses a single transducer as both source and receiver of pulsed ultrasound to measure backscattered energy [...]