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Top: Wild-type phage (left) can be genetically engineered to display crystal-specific peptide on major coat pVIII (middle), which can further induce the biomimetic mineralization of nanocrystals on the major coat (right). Bottom: High-resolution TEM images of phage nanofibers with ZnS nanocrystals nucleated on the side wall. The insets are electron diffraction patterns of the mineralized nanofibers, and indicate a preferred crystal orientation.[23,24]
