Abstract

The development of a technique for functionally regulated nanosized material production in ambient condition is broadly required according to the expansion of nanomaterial based applications. Short peptides, which bind to metallic surfaces, have great potential for the technique development, but the realization remains a difficult challenge due to the lack of metal binding peptide varieties. Herein, approximately 1800 peptides with the gold nanoparticle (AuNP) binding activity are reported and characterized. Furthermore, by three highest binding peptides, the expression of bi-functionality in AuNP binding and Au(III) reduction was serendipitously discovered in solution and on solid surfaces. These findings will be attributed to new technique development of functional nanoparticle synthesis in mild condition, and for site-dependent AuNP integration in various nanotechnological devices.

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