Virus-Based Toolkit for the Directed Synthesis of Magnetic and Semiconducting Nanowires

@article{citeulike:332690, abstract = {We report a virus-based scaffold for the synthesis of single-crystal ZnS, CdS, and freestanding chemically ordered CoPt and FePt nanowires, with the means of modifying substrate specificity through standard biological methods. Peptides (selected through an evolutionary screening process) that exhibit control of composition, size, and phase during nanoparticle nucleation have been expressed on the highly ordered filamentous capsid of the M13 bacteriophage. The incorporation of specific, nucleating peptides into the generic scaffold of the M13 coat structure provides a viable template for the directed synthesis of semiconducting and magnetic materials. Removal of the viral template by means of annealing promoted oriented aggregation-based crystal growth, forming individual crystalline nanowires. The unique ability to interchange substrate-specific peptides into the linear self-assembled filamentous construct of the M13 virus introduces a material tunability that has not been seen in previous synthetic routes. Therefore, this system provides a genetic toolkit for growing and organizing nanowires from semiconducting and magnetic materials.}, author = {Mao, Chuanbin and Solis, Daniel J. and Reiss, Brian D. and Kottmann, Stephen T. and Sweeney, Rozamond Y. and Hayhurst, Andrew and Georgiou, George and Iverson, Brent and Belcher, Angela M. }, citeulike-article-id = {332690}, doi = {http://dx.doi.org/10.1126/science.1092740}, journal = {Science}, keywords = {origami, origami-alternatives}, month = {January}, number = {5655}, pages = {213--217}, posted-at = {2008-05-03 13:39:51}, priority = {2}, title = {Virus-Based Toolkit for the Directed Synthesis of Magnetic and Semiconducting Nanowires}, url = {http://dx.doi.org/10.1126/science.1092740}, volume = {303}, year = {2004} }

TY - JOUR ID - citeulike:332690 L3 - citeulike-article-id:332690 TI - Virus-Based Toolkit for the Directed Synthesis of Magnetic and Semiconducting Nanowires JF - Science VL - 303 IS - 5655 SP - 213 EP - 217 N2 - We report a virus-based scaffold for the synthesis of single-crystal ZnS, CdS, and freestanding chemically ordered CoPt and FePt nanowires, with the means of modifying substrate specificity through standard biological methods. Peptides (selected through an evolutionary screening process) that exhibit control of composition, size, and phase during nanoparticle nucleation have been expressed on the highly ordered filamentous capsid of the M13 bacteriophage. The incorporation of specific, nucleating peptides into the generic scaffold of the M13 coat structure provides a viable template for the directed synthesis of semiconducting and magnetic materials. Removal of the viral template by means of annealing promoted oriented aggregation-based crystal growth, forming individual crystalline nanowires. The unique ability to interchange substrate-specific peptides into the linear self-assembled filamentous construct of the M13 virus introduces a material tunability that has not been seen in previous synthetic routes. Therefore, this system provides a genetic toolkit for growing and organizing nanowires from semiconducting and magnetic materials. KW - origami KW - origami-alternatives AU - Mao, Chuanbin AU - Solis, Daniel AU - Reiss, Brian AU - Kottmann, Stephen AU - Sweeney, Rozamond AU - Hayhurst, Andrew AU - Georgiou, George AU - Iverson, Brent AU - Belcher, Angela PY - 2004/01/09/ UR - http://dx.doi.org/10.1126/science.1092740 ER -