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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

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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 
WhatsApp Image 2020-09-14 at 5.38.36 PM.
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