Method and apparatus for electrostatic dispensing of microdroplets
US6995024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Jul 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and device for dispensing femtoliter to nanoliter volumes of liquid samples are disclosed. The apparatus includes a liquid-support plate, two electrodes, a substrate, and a control unit. The liquid support plate has a plurality of liquid-support regions, each capable of supporting a liquid meniscus thereon. The first electrode contains a plurality of electrode connections, each operatively connected to one of the liquid support regions, for electrical contact with a meniscus supported in such region. The substrate has a first side confronting the plate and an opposite side, and a plurality of sample-holding regions formed in the first side. The second electrode is disposed adjacent one of the two substrate sides. Thus, a selected volume of the liquid can be ejected from or to one or more of the liquid-support regions to or from one or more of the sample-holding regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.