Photochemical mineralization of europium, titanium, and iron oxyhydroxide nanoparticles in the ferritin protein cage.
The Fe storage protein ferritin was used as a size-constrained reaction vessel for the photoreduction and reoxidation of complexed Eu, Fe, and Ti precursors for the formation of oxyhydroxide nanoparticles. The resultant materials were characterized by dynamic light scattering, gel electrophoresis, UV-vis spectroscopy, and transmission electron microscopy. The photoreduction and reoxidation process is inspired by biological sequestration mechanisms observed in some marine siderophore systems.
Klem
Michael T
MT
Department of Chemistry & Biochemistry, Montana State University, Bozeman, Montana 59717, USA.
Mosolf
Jesse
J
Young
Mark
M
Douglas
Trevor
T
D002850:Chromatography, Gel; D005063:Europium / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D033862:Iron-Binding Proteins / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D008903:Minerals / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010777:Photochemistry; D014025:Titanium / Q000737:chemistry*
D005290:Ferric Compounds; D033862:Iron-Binding Proteins; D008903:Minerals; C021024:ferric hydroxide; D005063:Europium; D014025:Titanium