Three-dimensional nanofabrication by patterning of hydrogels
US11214661B2 · kind B2 · utility
3Cited by
4References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2016 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Jan 17, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention enables three-dimensional nanofabrication by isotropic shrinking of patterned hydrogels. A hydrogel is first expanded, the rate of expansion being controlled by the concentration of the crosslinker. The hydrogel is then infused with a reactive group and patterned in three dimensions using a photon beam through a limited-diffraction microscope. Functional particles or materials are then deposited on the pattern. The hydrogel is then shrunk and cleaved from the pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.