Gold nanoshell assembly on a ferritin protein employed as a bio-template.
Gold nanoshells around 26 nm in diameter with a 7 nm thick wall were fabricated in an aqueous solution using pre-reconstituted ferritin proteins as a removable bio-template. The synthesis of gold nanoshells was initiated by planting gold nanoparticle seeds in the hydrophilic three-fold channels of the ferritin protein. The process was facilitated by the energetically favorable gold-sulfur bonds formed at the cysteine residues lining these channels.
Kim
Jae-Woo
JW
National Institute of Aerospace, Hampton, VA 23666, USA.
Posey
Ammon E
AE
Watt
Gerald D
GD
Choi
Sang H
SH
Lillehei
Peter T
PT
D005293:Ferritins / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures; D013056:Spectrophotometry, Ultraviolet
D006046:Gold; D005293:Ferritins