Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers.

Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Research Abstract Details 

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Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Abstract Text:

Wei Wang,Wei Wan,Hong-Hui Zhou,Shuqiang Niu,Alexander D Q Li,

Foldable polymers with alternating single-strand deoxyribonucleic acid and planar conjugated organic perylene tetracarboxylic diimide units were found to self-organize into loosely folded nanostructures. Upon heating, the loosely folded structures become more ordered as evidenced by pi-stacking in the perylene segments. The folding and unfolding processes driven by the molecular interactions of adjacent perylenes were monitored in both aqueous and organic solutions. Heat-promoted folding, or inverse temperature behavior, which originates from positive enthalpy changes, was only observed in water. Therefore, we attributed this inverse temperature dependence to hydrophobic effects rather than pi-pi molecular orbital overlap between the perylene planes. These findings shed light on the design of new thermophiles in protein engineering as well as the construction of macromolecular-based nanodevices with actuator and sensory properties.

Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Publishing Authors By Initials

W Wang,W Wan,HH Zhou,S Niu,AD Li,

For similar natural sciences: physics: thermodynamics research abstracts see: natural sciences: physics: thermodynamics research

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Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the American Chemical Society

VOLUME: 125

Page Numbers: 5248-9

Journal Abbreviation: J. Am. Chem. Soc.

ISSN: 0002-7863

DAY: 7

MONTH: May

YEAR: 2003

Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 7503056

Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Keywords Mesh Terms:

KEYWORDS: Thermodynamics

MESH TERMS: chemistry

Chemical & Substance for Abstract: Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers. Information

Substance Name: Perylene

Registry Number: 198-55-0

Grant and Affiliation Information for Alternating DNA and pi-conjugated sequences. Thermophilic foldable polymers.

AFFILIATION: Department of Chemistry, Washington State University, Pullman, Washington 99164, USA.

Country: United States

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MEDLINETA: J Am Chem Soc

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