Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide.

Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Research Abstract Details 

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Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Abstract Text:

Rhett C Smith,Andrew G Tennyson,Annie C Won,Stephen J Lippard,

A series of eight pi-conjugated polymers (CPs) composed of phenylenevinylene, phenyleneethynylene, fluorene, and thiophene derivatives have been prepared with bipyridyl or terpyridyl substituents within the pi-conjugated backbone or at side-chain positions. These ligand-modified CPs serve as macromolecular scaffolds for conducting metallopolymers. The optical and photoluminescent properties of the polymers and corresponding copper(II) metallopolymers were investigated. Copper(II) is a highly efficient quencher of CP emission (75-100% quenching). CPs featuring bipyridyl units within the CP backbone are quenched more efficiently than those with terpyridyl units. The copper(II) metallopolymer undergoes reduction to the corresponding copper(I) species upon reaction with nitric oxide, with concomitant changes in integrated emission ranging from a 50% decrease to a 320% increase. The positive emission response is largest when Cu(II) was bound to the CP through bipyridyl units within the backbone, making these materials the best candidates for NO sensing by a turn-on emission mechanism.

Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Publishing Authors By Initials

RC Smith,AG Tennyson,AC Won,SJ Lippard,

For similar macromolecular substances: polymers research abstracts see: macromolecular substances: polymers research

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Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Inorganic chemistry

VOLUME: 45

Page Numbers: 9367-73

Journal Abbreviation:

ISSN: 0020-1669

DAY: 13

MONTH: Nov

YEAR: 2006

Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Information

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LANGUAGE: eng

NlmUniqueID: 366543

Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Keywords Mesh Terms:

KEYWORDS: Polymers

MESH TERMS: chemistry

Chemical & Substance for Abstract: Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide. Information

Substance Name: Copper

Registry Number: 7440-50-8

Grant and Affiliation Information for Conjugated metallopolymers for fluorescent turn-on detection of nitric oxide.

AFFILIATION: Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Country: United States

AGENCY: United States NCRR

GRANT: 1S10RR13886-01

ACRONYM: RR

MEDLINETA: Inorg Chem

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