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Nanoparticle Separation in a Microfluidic Channel by Acoustophoresis and its Application to the development of a Personal Ultrafine Particle Sensor
Nanoparticle Separation
Existing Ultrafine Classifier
(Scanning mobility particle sizer)
Need X-ray/radioactive to neutralize the particle
Bulky
Use Electrostatic
Existing Ultrafine Classifier
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
Separation by Acoustophoresis
Advantages
Other Research
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