Formation of protein-metal oxide nanostructures by the sonochemical method: observation of nanofibers and nanoneedles.
The sonochemical reaction of iron pentacarbonyl is explored in water and in water with the protein BSA (bovine serum albumen). In water, the reaction is found to produce spherical nanoparticles of magnetite (Fe3O4) with a particle size distribution of <10 to approximately 60 nm. In water with BSA, the reaction produces either nanofibers or nanoneedles, depending on the concentration of BSA. The nanofiber and nanoneedle samples are found to be mixtures of goethite, lepidocrocite, and hematite (alpha-FeOOH, gamma-FeOOH, and alpha-Fe2O3, respectively). The sonochemical reaction of iron pentacarbonyl with BSA in water is thought to proceed through the thermal decomposition mechanism for iron pentacarbonyl with BSA acting as a templating agent.
Bunker
Christopher E
CE
Air Force Research Laboratory, Propulsion Directorate, Wright-Patterson Air Force Base, Ohio 45433-7103, USA.
Novak
Kyle C
KC
Guliants
Elena A
EA
Harruff
Barbara A
BA
Meziani
M Jaouad
MJ
Lin
Yi
Y
Sun
Ya-Ping
YP
D008670:Metals / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures; D011506:Proteins / Q000737:chemistry*; D012710:Serum Albumin, Bovine / Q000737:chemistry; D014961:X-Ray Diffraction
D008670:Metals; D011506:Proteins; D012710:Serum Albumin, Bovine