Nanoparticle-textured surfaces and related methods for selective adhesion, sensing and separation
US8652640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2013 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25375
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention includes an article of manufacture or device, or related system, comprising a heterogeneous surface for selective analyte sensing or separation. Such an article can comprise a surface member and a plurality of spaced components extending therefrom and coupled thereto, such a surface member and spaced components providing a surface heterogeneity selected from different electrostatic interactions, different non-electrostatic interactions and a combination of such interactions, such that the interactions are at least partially sufficient for selective analyte interaction and/or separation. Each such component extension can be of a nanometer dimension about the Debye length of a medium comprising an analyte particle exposed to such a surface. An analyte particle, optionally of a mixture of particles, can be dimensioned from about 30 nm to 20 μm. In some embodiments, the extended components have a density at least partially sufficient for interaction of a single such component or multiple components with a single analyte particle, at a given Debye length. In other embodiments, such components have an average spatial density at least partially sufficient for selecti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.