Multiphoton photosensitization system
US7381516B2 · kind B2 · utility
34Cited by
58References
38Claims
0Family size
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Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Oct 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/117
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A photoreactive composition comprises (a) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction; and (b) a photoinitiator system comprising photochemically-effective amounts of (1) at least one type of semiconductor nanoparticle quantum dot that has at least one electronic excited state that is accessible by absorption of two or more photons, and (2) a composition, different from said reactive species, that is capable of interacting with the excited state of the semiconductor nanoparticle quantum dot to form at least one reaction-initiating species.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.