Nanoparticle Separation in a Microfluidic Channel by Acoustophoresis and its Application to the development of a Personal Ultrafine Particle Sensor
Existing Ultrafine Classifier
(Scanning mobility particle sizer)
Need X-ray/radioactive to neutralize the particle
Bulky
Use Electrostatic
Particles separated by Acoustophoresis
1
Using acoustic wave to manipulate the particle motion in a microchannel
2
Sorting the particle according to sizes
3
Potentially to be developed into a ultrafine particle (Diameter < 0.1 um) sensor
Larger particles move to the equilibrium position at a faster rate
Smaller Particles
Interdigital Transducer
Larger Particles
Interdigital Transducer
Smaller Particles
1. Miniature for personal usage
2. Simpler method to manipulate and sort small particles
Advantages
Flutter-driven Hybridized Triboelectric-Piezoelectric Nanogenerator for Smart Building Applications