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	Single-Molecule Study on Intermolecular Interaction between C-60 and Porphyrin Derivatives: Toward Understanding the Strength of the Multivalency
	Zhang, Yiheng ; Yu, Ying ; Jiang, Zhenhua ; Xu, Huaping ; Wang, Zhiqiang ; Zhang, Xi ; Oda, Masafumi ; Ishizuka, Tomoya ; Jiang, Donglin ; Chi, Lifeng ; Fuchs, Harald
	2010-10-12 ; 2010-10-12
关键词	SELF-ASSEMBLED MONOLAYERS ATOMIC-FORCE MICROSCOPY SUPRAMOLECULAR CHEMISTRY POLYMER-CHAINS DESORPTION FORCE SPECTROSCOPY AFM BOND COOPERATIVITY SURFACE Chemistry, Multidisciplinary Chemistry, Physical Materials Science, Multidisciplinary
中文摘要	Multivalency is important in molecular self-assembly, although it remains a challenge to correlate the single-molecule results with the multivalent interaction. As the first example, we have combined a well-defined self-assembling system with AFM-based single-molecule force spectroscopy (SMFS) to investigate the intermolecular interactions and multivalency between C-60 and porphyrin derivatives. Compared with the interaction between C-60 and a single porphyrin (29 pN), SM FS has revealed that porphyrin tweezers can provide an enhanced binding interaction with C-60, resulting in a more than 2-fold higher unbinding force (75 pN, at the same loading rate). In addition, a much lower dissociation rate and a shorter effective distance between the bound state and transition state of the interaction are indicated by dynamic force spectroscopy. These results provide new quantitative information on the divalency effect in the unbinding process of C-60 and porphyrin tweezers at the single-molecule level, which is of significance in understanding the strength of the multivalency in the molecular assembly.
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80832]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Yiheng,Yu, Ying,Jiang, Zhenhua,et al. Single-Molecule Study on Intermolecular Interaction between C-60 and Porphyrin Derivatives: Toward Understanding the Strength of the Multivalency[J],2010, 2010.
APA	Zhang, Yiheng.,Yu, Ying.,Jiang, Zhenhua.,Xu, Huaping.,Wang, Zhiqiang.,...&Fuchs, Harald.(2010).Single-Molecule Study on Intermolecular Interaction between C-60 and Porphyrin Derivatives: Toward Understanding the Strength of the Multivalency..
MLA	Zhang, Yiheng,et al."Single-Molecule Study on Intermolecular Interaction between C-60 and Porphyrin Derivatives: Toward Understanding the Strength of the Multivalency".(2010).

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