MICROPARTICLE FRACTIONATING APPARATUS AND METHOD OF FRACTIONATING MICROPARTICLE

摘要

Described are microparticle fractionating apparatus and methods of fractionating microparticles. Multiple electrodes may be used to charge droplets when separating and collecting microparticles based on a result analyzed by an optical methodologies. A first electrode may be used to charge a sample fluid, and a second electrode used to apply additional charge near a droplet break-off point.

主权项

1. A charging apparatus for charging droplets discharged from an orifice of a microparticle fractionating apparatus, the charging apparatus comprising:
a first electrode configured to apply a first bias from a bias source to a sample liquid supplying the orifice; and a second electrode configured to apply a second bias from the bias source and referenced to the first bias to the droplets formed from the sample liquid, wherein the second electrode is located at a droplet break-off-point near the orifice.