Luminescent lanthanide chelates
US5571897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1994 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jul 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/533
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Lanthanide chelates which contain three heterocyclic rings covalently coupled to each other (either one 2,6-pyridylene and two five-membered unsaturated heterocyclic ring moieties or two 2,6-pyridylene and one five-membered unsaturated heterocyclic ring moiety) and two chelating groups so seated that they together chelate the same lanthanide ion even in aqueous solutions. These lanthanide chelates can optionally contain a reactive group for coupling to biologically active molecules. The new chelates are suitable for classical lanthanide chelate applications and are also useful as probes in time-resolved fluorescence microscopy, cytometry, multilabelling techniques and in process controls in industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.