Biomolecular synthesis of quantum dot composites
US6350515B1 · kind B1 · utility
9Cited by
5References
25Claims
0Family size
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Key dates
| Filing date | Sep 28, 1999 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A biomimetic approach utilizing biomolecular self-assembly is described to form nanometer particle size composites for uses, such as, nonlinear optical media. Yeast tRNA was utilized as an ion-exchange/nucleation site within a polymeric matrix (polyacrylamide). Cadmium ion-exchange and subsequent sulfide precipitation resulted in formation of nanometer particle size composites. Illumination of samples with an Argon laster (514 nm) utilizing the Z-scan measurement method resulted in third order nonlinearity &khgr;3 values of +2.7×10−6 esu.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.