Alignment of twisted nanoribbons formed by C17 H35 CO-Val-Ala sodium salts

Soft Matter
Qiyun TongYonggang Yang

Abstract

C17H35CO-l-Val-l-Ala and C17H35CO-d-Val-d-Ala sodium salts can form physical gels in water, and self-assemble into right- and left-handed twisted nanoribbons, respectively. FT-IR and 1H NMR spectra indicate that the H-bonding between the neighboring valine residues and electrostatic interactions of carboxylate groups play important roles in the formation of helical nanoribbons. Circular dichroism characterization and theoretical chemical calculations indicate that the dipeptide segments pack in a helical manner. X-ray diffraction patterns and theoretical chemical simulations indicate an interdigitated bilayer structure. The hydrogels exhibit a thixotropic behavior. The twisted nanoribbons are able to align under directional force.

References

Nov 27, 2001·Science·J D HartgerinkS I Stupp
Jun 28, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·C Nogues, P Lang
Feb 6, 2009·Nano Letters·Honggang CuiSamuel I Stupp
May 27, 2010·Chemical Society Reviews·Xuehai YanJunbai Li
Jun 15, 2010·Nature Materials·Shuming ZhangSamuel I Stupp
Jun 18, 2010·Journal of the American Chemical Society·E Thomas Pashuck, Samuel I Stupp
Aug 3, 2010·Chemical Society Reviews·Derek N Woolfson, Zahra N Mahmoud
Oct 4, 2012·Chemical Society Reviews·Claudia Tomasini, Nicola Castellucci
Apr 27, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Yitai FuYonggang Yang
Jan 10, 2014·Chemical Reviews·Sukumaran Santhosh BabuAyyappanpillai Ajayaghosh
Feb 28, 2014·Chemical Communications : Chem Comm·Changxia LiuMinghua Liu
Jun 10, 2014·Journal of the American Chemical Society·Peter A KorevaarSamuel I Stupp
Sep 10, 2014·Chemical Society Reviews·Scott Fleming, Rein V Ulijn
Feb 24, 2015·Angewandte Chemie·Chunhua RenZhimou Yang
Apr 22, 2015·Chemical Communications : Chem Comm·Charalampos G PappasShuo Bai
Jul 29, 2015·Journal of the American Chemical Society·Natasha C BurgessDerek N Woolfson
Aug 15, 2015·Chemical Society Reviews·Emiliana De Santis, Maxim G Ryadnov
Sep 29, 2015·Journal of Nanoscience and Nanotechnology·Yunsen SangYonggang Yang
Jul 9, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Shuwei LinYonggang Yang
Aug 5, 2016·Chemical Society Reviews·Juan WangXuehai Yan
Feb 2, 2017·The Journal of Physical Chemistry. B·Changrui GaoMichael J Bedzyk
Feb 14, 2017·Journal of the American Chemical Society·Yanbin CaiZhimou Yang
Mar 10, 2017·Journal of the American Chemical Society·José Navarro-SánchezCarlos Martí-Gastaldo

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Methods Mentioned

BETA
protein folding
scanning electron microscopy
infrared spectroscopy
X-ray

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