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Highly Stretchable Nanoparticle Helices Through Geometric Asymmetry and Surface Forces
Author(s) -
Pham Jonathan T.,
Lawrence Jimmy,
Lee Dong Yun,
Grason Gregory M.,
Emrick Todd,
Crosby Alfred J.
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201302817
Subject(s) - materials science , asymmetry , nanoparticle , elasticity (physics) , stiffness , surface tension , radius , helix (gastropod) , surface (topology) , shape change , nanotechnology , composite material , geometry , biophysics , thermodynamics , physics , computer security , mathematics , quantum mechanics , computer science , ecology , biology , snail
Geometric asymmetry and surface forces are used directly the shape transformation of two‐dimensional nanoparticle (NP)‐based ribbons into three‐dimensional helices. The balance between elasticity and surface tension dictates the helical radius dimension. NP helical ribbons have exceptional mechanical properties, displaying high stretchability, helical shape recovery after extension, and low‐strain stiffness values similar to biological helices.