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Laser‐Induced Alignment of Self‐Assembled Films of an Oligopeptide β Sheet on the Water Surface
Author(s) -
Birman Atalia,
Kjaer Kristian,
Prior Yehiam,
Nevo Iftach,
Leiserowitz Leslie
Publication year - 2010
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.200905927
Subject(s) - dimer , bilayer , laser , materials science , evaporation , optics , self assembly , nanotechnology , crystallography , chemistry , membrane , physics , organic chemistry , meteorology , biochemistry
A pulsed IR laser beam was used to align a peptide at the air–water interface. This peptide was designed to form a cyclic β‐strand dimer through Glu–Lys interactions in solution, which, when spread onto water, yielded a self‐assembled β‐sheet bilayer (see picture) following solvent evaporation. During this process illumination with linearly polarized laser light induced formation of an aligned crystalline film, whereas circular polarization did not.