Manipulation of fluids in three-dimensional porous photonic structures with patterned surface properties
US9279771B2 · kind B2 · utility
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Key dates
| Filing date | Nov 21, 2011 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | May 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7773
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A three-dimensional porous photonic structure, whose internal pore surfaces can be provided with desired surface properties in a spatially selective manner with arbitrary patterns, and methods for making the same are described. When exposed to a fluid (e.g., via immersion or wicking), the fluid can selectively penetrate the regions of the structure with compatible surface properties. Broad applications, for example in security, encryption and document authentication, as well as in areas such as simple microfluidics and diagnostics, are anticipated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.