期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.148301
关键词
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资金
- National Science Foundation [CHE-0616925, DMR-0606086, CBET-0609087]
- National Institutes of Health [1-R01-HL0775486A]
- Petroleum Research Fund [46204-AC7]
We propose a method for the design of branched macromolecules that are capable of building up high tension (similar to nN) in their covalent bonds without applying an external force. The tension is self-generated due to repulsion between branches and depends on the molecular architecture leading to amplification and focusing of tension in specific bonds. The simplest architecture is a pom-pom composed of a linear spacer and two z-arm stars at its ends resulting in z-fold tension amplification. Adsorption of those macromolecules on a substrate results in further increase in tension as compared to molecules in solution.
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