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Ultrasound-induced modulations of tetrapeptide hierarchical 1-d self-assembly and underlying molecular structures via sonocrystallization

文献类型：期刊论文

作者Ke, Damei1,2; Zhan, Chuanlang1; Li, Xiao1,2; Wang, Xi1,2; Zeng, Yi1,2; Yao, Jiannian1
刊名Journal of colloid and interface science
出版日期2009-09-01
卷号337期号:1页码:54-60
关键词Tetrapeptide Self-assembly Ultrasound Hierarchical structures
ISSN号0021-9797
DOI10.1016/j.jcis.2009.05.024
通讯作者Zhan, chuanlang(clzhan@iccas.ac.cn)
英文摘要Herein, we report the ultrasound-induced modulations of the morphologies and underlying molecular structures of tetrapeptide 1-d self-assembly. the self-assembly of the tetrapeptide (ttr108-111) precipitating out of the 1:1 mixed methanol/water is modulated from microtapes into nanotapes, nanofibers, and then bundles of nanorods when subjected to sonication for a period. the sonication-treated and untreated self-assemblies all give a set of equatorial pattern and a series of meridional pattern, indications of a typical "cross-beta-structure" as the core structural motif. ftir data indicate that all the assemblies contain a mixed pattern of beta-sheets (dominant) and unstructured conformations (minor), and the relative proportion of unbound structures to beta-sheets is as a function of sonication time, suggesting an ultrasound-induced modulation of beta-sheet interactions. accordingly, a possible model regarding a dynamic equilibrium between re-dissolution and re-assembling processes, e.g., a typical sonocrystallization process was proposed for such ultrasound-induced modulations of morphologies and underlying molecular structures. (c) 2009 elsevier inc. all rights reserved.
WOS关键词AMYLOID-LIKE FIBRILS ; LEAST-SQUARES METHODS ; SOL-GEL TRANSITION ; ENZYMATIC HYDROGELATION ; INDUCED GELATION ; ORGANIC FLUIDS ; AMIDE-I ; PEPTIDE ; PROTEIN ; SWITCH
WOS研究方向Chemistry
WOS类目Chemistry, Physical
语种英语
WOS记录号WOS:000268111800008
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
URI标识http://www.irgrid.ac.cn/handle/1471x/2404586
专题中国科学院大学
通讯作者Zhan, Chuanlang
作者单位1.Chinese Acad Sci, Inst Chem, Lab Photochem, BNLMS, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Ke, Damei,Zhan, Chuanlang,Li, Xiao,et al. Ultrasound-induced modulations of tetrapeptide hierarchical 1-d self-assembly and underlying molecular structures via sonocrystallization[J]. Journal of colloid and interface science,2009,337(1):54-60.
APA Ke, Damei,Zhan, Chuanlang,Li, Xiao,Wang, Xi,Zeng, Yi,&Yao, Jiannian.(2009).Ultrasound-induced modulations of tetrapeptide hierarchical 1-d self-assembly and underlying molecular structures via sonocrystallization.Journal of colloid and interface science,337(1),54-60.
MLA Ke, Damei,et al."Ultrasound-induced modulations of tetrapeptide hierarchical 1-d self-assembly and underlying molecular structures via sonocrystallization".Journal of colloid and interface science 337.1(2009):54-60.

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来源：中国科学院大学

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