Microbial detection and quantification
US7687245B2 · kind B2 · utility
4Cited by
47References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 16, 2004 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jun 10, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/04
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Suitable dyes are used herein to indicate the presence of microbial contamination by spraying them onto surfaces in the form of an aqueous solution. The dye solution may also be allowed to dry, thus producing the dried residue of an aqueous solution. It's believed that these dyes change color in response to a change in polarity of the environment. Since water is a polar solvent and most bacteria are made from non-polar substances, the presence of bacteria changes the polarity of the environment, triggering a change visible by the unaided eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.