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Oriented Chiral DNA–Silica Film Guided by a Natural Mica Substrate
Author(s) -
Cao Yuanyuan,
Kao Kunche,
Mou Chungyuan,
Han Lu,
Che Shunai
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201509068
Subject(s) - materials science , mica , biomolecule , substrate (aquarium) , nanotechnology , fabrication , liquid crystal , self assembly , chemical engineering , optoelectronics , composite material , medicine , oceanography , alternative medicine , pathology , engineering , geology
The formation of highly ordered chiral organic/inorganic films with high density and long‐range orientation is important in constructing chiral devices, such as broadband polarization devices, liquid‐crystal displays, or negative‐reflection materials. A feasible strategy is presented to fabricate three‐dimensional mesostructured chiral DNA–silica assemblies into large‐scale oriented arrangements. The highly ordered film was aligned by a mica crystal substrate with the bridging effect of suitable divalent metal ions, followed by the growth of the DNA–silica composite by bottom‐up assembly with a “quartet templating” method. This simple and effective route would perform well in the alignment and arrangement of highly charged biomolecules, such as polypeptides, proteins, viruses, and their inorganic assemblies, and furthermore could allow the fabrication of chiral optical materials with long‐range ordering.