Tunable hydrogel microparticles
US8535644B2 · kind B2 · utility
5Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | Oct 13, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Sep 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Techniques are provided to produce and use non-spherical colloidal particles with independently tuned size, shape, flexibility, and chemical properties. A pre-polymer mixture for forming hydrogel particles includes a percentage of PEGDA selected to impart a target stiffness to the particles and includes, a percentage of acrylic acid selected to impart an independent target chemical function to the particles. The mixture also includes a percentage of photo-initiator to polymerize PEGDA upon exposure to a light source to impart an independently selected target size or shape or both to the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.