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Issue 10, 2003
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Synthesis and organization of nanoscale II–VI semiconductor materials using evolved peptide specificity and viral capsid assembly

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Abstract

Biological selection using the M13 bacteriophage was used to isolate peptide–phage fusions capable of specific recognition and nucleation of zinc sulfide (ZnS) and cadmium sulfide (CdS) nanocrystals. Advanced analytical electron microscopy data revealed that the phage constructs were found to control both crystal size and structure of semiconductor nanocrystals synthesized in aqueous solution at room temperature. Most significantly, different engineered peptide–phage constructs were found that directed the specific nucleation of either the zinc-blende or wurtzite structure for both ZnS and CdS nanocrystals. The ZnS specific peptides were found to function the same in either of two different fusion constructs, a pIII and pVIII fusion. As such, this method provides a new route to the synthesis of nanocrystals with specified physical characteristics such as size and crystal phase and has the potential to assemble biological II–VI hybrid materials into spatially complex functional mesoscopic electronic and photonic structures.

Graphical abstract: Synthesis and organization of nanoscale II–VI semiconductor materials using evolved peptide specificity and viral capsid assembly

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Publication details

The article was received on 03 Jul 2003, accepted on 15 Aug 2003 and first published on 27 Aug 2003


Article type: Paper
DOI: 10.1039/B307593A
J. Mater. Chem., 2003,13, 2414-2421

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    Synthesis and organization of nanoscale II–VI semiconductor materials using evolved peptide specificity and viral capsid assembly

    C. E. Flynn, C. Mao, A. Hayhurst, J. L. Williams, G. Georgiou, B. Iverson and A. M. Belcher, J. Mater. Chem., 2003, 13, 2414
    DOI: 10.1039/B307593A

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