Slippery liquid-infused porous surfaces and biological applications thereof
US9932484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2012 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Oct 27, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D5/083
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A self-healing, scratch resistant slippery surface that is manufactured by wicking a chemically-inert, high-density liquid coating over a roughened solid surface featuring micro and nanoscale topographies is described. Such a slippery surface shows anti-wetting properties, as well as exhibits significant reduction of adhesion of a broad range of biological materials, including particles in suspension or solution. Specifically, the slippery surfaces can be applied to medical devices and equipment to effectively repel biological materials such as blood, and prevent, reduce, or delay coagulation and surface-mediated clot formation. Moreover, the slippery surfaces can be used to prevent fouling by microorganisms such as bacteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.