End-to-end distance distribution of force stretched chains reconstruction by maximum-entropy method

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	End-to-end distance distribution of force stretched chains reconstruction by maximum-entropy method
	Dai, LR; Liu, F; Ou-Yang, ZC; Dai, LR , Chinese Acad Sci, Inst Theoret Phys, Interdisciplinary Ctr Theoret Studies, POB 2735, Beijing 100080, Peoples R China.
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS B
	2004
卷号	18 期号:17-19 页码:2365-2375
关键词	Single-stranded-dna Molecules
ISSN号	0217-9792
英文摘要	Using the maximum-entropy method, the end-to-end distance distribution of the force stretched chain is calculated from the moments of the distribution, which can be obtained from the extension-force curves recorded in single-molecule experiments. If one knows force expansion of the extension through the (n - 1)th power of force, it is enough information to calculate the n moments of the distribution. The method is examined with force stretched chain models, Gaussian chain and excluded-volume chain on two-dimension lattice. The method reconstructs all distributions precisely. The method also is applied to force stretched complex chain molecules: the hairpin and secondary structure conformations. We find that the distributions of homogeneous chains of two conformations are very different: there axe two independent peaks in hairpin distribution; while only one peak is observed in the distribution of secondary structure conformations. Our discussion also shows that the end-to-end distance distribution may discover more critical physical information than the simpler extension-force curves can give.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000224475600003
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14039]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Dai, LR , Chinese Acad Sci, Inst Theoret Phys, Interdisciplinary Ctr Theoret Studies, POB 2735, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Dai, LR,Liu, F,Ou-Yang, ZC,et al. End-to-end distance distribution of force stretched chains reconstruction by maximum-entropy method[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2004,18(17-19):2365-2375.
APA	Dai, LR,Liu, F,Ou-Yang, ZC,&Dai, LR , Chinese Acad Sci, Inst Theoret Phys, Interdisciplinary Ctr Theoret Studies, POB 2735, Beijing 100080, Peoples R China..(2004).End-to-end distance distribution of force stretched chains reconstruction by maximum-entropy method.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,18(17-19),2365-2375.
MLA	Dai, LR,et al."End-to-end distance distribution of force stretched chains reconstruction by maximum-entropy method".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 18.17-19(2004):2365-2375.