| 초록 |
In general, an engineered virus for binding a target material discovered via a high-throughput evolutionary screening process possesses a limited recognition or nucleation function for the selected material. In this study, M13 bacteriophage (phage) was engineered for the use as a versatile template for preparing various nanostructured materials via genetic engineering coupled to enzymatic chemical conversions. First, we engineered the M13 phage to display TyrGluGluGlu (YEEE) on the pVIII coat protein and then enzymatically converted the Tyr residue to 3,4-dihydroxyl-L-phenylalanine (DOPA). The DOPA-displayed M13 phage were able to perform two functions: assembly and nucleation. The engineered phage assembled various noble metals, metal oxides, and semiconducting nanoparticles into one-dimensional arrays. Furthermore, the DOPA-displayed phage triggered the nucleation and growth of gold, silver, platinum, bimetallic cobalt-platinum, and bimetallic iron-platinum nanowires. This versatile phage template enables rapid preparation of phage-based prototype devices by eliminating the screening process, thus reducing effort and time. |
