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Size‐Controlled Ni Nanocrystal Growth on Peptide Nanotubes and Their Magnetic Properties
Author(s) -
Yu L.,
Banerjee I. A.,
Shima M.,
Rajan K.,
Matsui H.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200306373
Subject(s) - nanocrystal , materials science , nanotechnology , nanotube , peptide , nanostructure , chemical engineering , carbon nanotube , chemistry , biochemistry , engineering
In nature, peptides bind metals reproducibly and selectively via specific amino acid sequences, producing nanocrystals in controlled sizes and morphologies. A novel method of growing uniform nanocrystals directly on biological nanotubes by immobilizing synthetic Ni‐mineralizing peptides on the nanotubes is reported (see Figure). Control of the Ni nanocrystal size is a function of pH, enabling tunability of magnetic properties in the resulting nanotube.