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Spontaneous Capture of Carbohydrate Guests through Folding and Zipping of Self‐Assembled Ribbons
Author(s) -
Shen Bowen,
He Ying,
Kim Yongju,
Wang Yanqiu,
Lee Myongsoo
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201509190
Subject(s) - folding (dsp implementation) , ribbon , crystallography , planar , self assembly , fructose , molecule , chemistry , fibril , materials science , biophysics , nanotechnology , stereochemistry , composite material , organic chemistry , biochemistry , computer science , biology , structural engineering , computer graphics (images) , engineering
One of the great challenges in molecular self‐assembly is how to confer self‐folding and closing characteristics on flat two‐dimensional structures in response to external triggers. Herein, we report a planar ribbon assembly that folds into closed tubules in response to fructose. The ribbons, ≈28 nm wide and 3.5 nm thick, consist of 8 laterally‐associated elementary fibrils in which disc‐shaped macrocycle amphiphiles are stacked along their axis. Upon addition of fructose, these flat structures spontaneously fold into closed tubules, with an outer diameter of ≈8 nm, through zipping of the two sides of the ribbons. Notably, the folding and then zipping of the flat ribbons is accompanied by spontaneous capture of the fructose molecules inside the tubular cavities.