Fluorescent Indicators for Cytosolic Lithium Ion

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$50,000.00
Award Year:
1993
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
22443
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Covalent Associates, Inc.
10 State Street, Woburn, MA, 01801
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Christopher Blackburn
(617) 938-1140
Business Contact:
() -
Research Institution:
n/a
Abstract
We propose to synthesize and test new fluorescent indicators for the lithium ion in aqueous solution. The indicators are designed to be water soluble and to respond selectively to Li+ by undergoing a shift in absorption and emission wavelengths. The proposed compounds will be of primary interest for determining the concentration of cytosolic Li+ and for monitoring any flux of Li+ in single cells acted on by neurotransmitters. The indicators will be of use to cell physiologists and neuroscientists studying the influence of Li+ on the phosphatidylinositol cycle implicated in the mechanism by which Li+ functions in the treatment of manic-depressive psychosis. The indicators may also be of use for measuring the concentration of Li+ in the serum of patients undergoing therapy.

* information listed above is at the time of submission.

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