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Synthesis of a DNA–Silica Complex with Rare Two-Dimensional Square p4mm Symmetry

Authors

  • Chenyu Jin ,

    1. School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 (P. R. China), Fax: (+86) 215-474-2852
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    • These authors equally contributed to this work.

  • Lu Han ,

    1. School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 (P. R. China), Fax: (+86) 215-474-2852
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    • These authors equally contributed to this work.

  • Shunai Che Prof.

    1. School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 (P. R. China), Fax: (+86) 215-474-2852
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  • We acknowledge the support of the National Natural Science Foundation of China (Grant No. 20890121 and 20821140537) and the 973 project (2009CB930403) of China.

Abstract

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Zipped together: The title system was synthesized by using a quaternary ammonium silane as a DNA-condensing agent and a co-condenser with the silica source. The small interaxial separation in electrostatic DNA–DNA “zippers” and silica walls formed between diagonally positioned DNA strands are optimal for formation of the p4mm structure.

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