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Controllable Orientation of Helical Poly( L ‐glutamic acid) Rods through Macrodipole Interaction on Gold Surfaces and Vectorial Electron Transfer
Author(s) -
Niwa Masazo,
Morikawa Masaaki,
Higashi Nobuyuki
Publication year - 2000
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/(sici)1521-3773(20000303)39:5<960::aid-anie960>3.0.co;2-q
Subject(s) - electron transfer , rod , helix (gastropod) , glutamic acid , orientation (vector space) , chemistry , redox , biophysics , crystallography , materials science , nanotechnology , amino acid , inorganic chemistry , photochemistry , biochemistry , biology , geometry , medicine , ecology , alternative medicine , mathematics , pathology , snail
Cell‐membrane communications are modeled by the orientation of disulfide‐modified poly( L ‐glutamic acid) helix assemblies on gold. The orientation of the rodlike adsorbants on the surface can be widely varied by complexation with a redox‐active guest helix on the basis of interactions of the macrodipoles (indicated as arrows in the picture). The resultant complexed assemblies can function as an electron‐mediator system.