Nanofluidic preconcentration device in an open environment
US8329115B2 · kind B2 · utility
12Cited by
0References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Mar 27, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2224
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides a device and methods for increasing the concentration of a charged species in solution, wherein the solution containing the concentrated species is exposed to the environment. Such solution can be formed on a surface or on a tip of a measurement device. The open-environment concentration technique overcomes the disadvantages of in-channel concentration devices, especially by eliminating flow-induced delivery processes that lead to concentration losses. Combined with direct contact dispensing, methods of this invention can be used for various applications such as immunoassay and MALDI-MS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.