tailieunhanh - Báo cáo khoa học: Use of biomolecular templates for the fabrication of metal nanowires

The nano-scale spatial organization of metallic and other inorganic materi-als into 1D objects is a key task in nanotechnology. Nano-scale fibers and tubes are very useful templates for such organization because of their inherent 1D organization. Fibrillar biological molecules and biomolecular assemblies are excellent physical supports on which to organize the inor-ganic material. | ỊFEBS Journal MINIREVIEW Use of biomolecular templates for the fabrication of metal nanowires Ehud Gazit Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences TelAviv University Israel Keywords bionanotechnology electroless deposition fibrils molecular recognition self-assembly Correspondence E. Gazit Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences TelAviv University TelAviv 69978 Israel Fax 972 3 640 5448 Tel 972 3 640 9030 E-mail ehudg@ Received 6 October 2006 accepted 3 November 2006 doi The nano-scale spatial organization of metallic and other inorganic materials into 1D objects is a key task in nanotechnology. Nano-scale fibers and tubes are very useful templates for such organization because of their inherent 1D organization. Fibrillar biological molecules and biomolecular assemblies are excellent physical supports on which to organize the inorganic material. Furthermore these biological assemblies can facilitate high-order organization and specific orientation of inorganic structures by their utilization of highly specific biological recognition properties. In this minireview I will describe the use of biomolecules and biomolecular assemblies including DNA proteins peptides and even viral particles which are excellent templates for 1D organization of inorganic materials into wires. This ranges from simple attempts at electroless deposition on inert biological templates to the advanced use of structural motifs and specific protein-DNA interactions for nano-bio-lithography as well as the fabrication of multilayer organic and inorganic composites. The potential technological applications of these hybrid biological-inorganic assemblies will be discussed. Bionanotechnology - the use of biological tools for nanotechnology Many functional biological assemblies represent genuine nanotechnological systems and devices 1 2 . These .

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