Hydrogel compositions, devices, and microscale components
US7988685B2 · kind B2 · utility
66Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2002 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Feb 17, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/80
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides hydrogel compositions, components, and hydrogel-actuated or mediated devices, and methods for the incorporation of hydrogel microscale components in microscale devices and systems. The methods and devices result in active microvalves that are useful in microfluidic applications, including analyte sensing, in process chemical and fermentation stream monitoring, and drug delivery. In particular, the devices are useful for controlled drug delivery either in response to a pre-determined stimulus or for pulsatile delivery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.