Integrated magnetic bionanocomposites through nanoparticle-mediated assembly of ferritin.
Magnetic (FePt) and nonmagnetic (Au) nanoparticles were used to assemble ferritin into near-monodisperse bionanocomposites featuring regular interparticle spacing. The FePt/ferritin assemblies are integrated magnetic materials with ferritin providing added magnetic volume fraction to the magnetic nanocomposite. These assemblies differ from either of their constituent particles in terms of blocking temperature (TB), net magnetic moment, coercivity, and remnance.
Srivastava
Sudhanshu
S
Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA.
Samanta
Bappaditya
B
Jordan
Brian J
BJ
Hong
Rui
R
Xiao
Qijun
Q
Tuominen
Mark T
MT
Rotello
Vincent M
VM
D005293:Ferritins / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008280:Magnetics; D053761:Nanocomposites / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D053838:Scattering, Small Angle; D055672:Static Electricity; D013499:Surface Properties; D013696:Temperature; D014961:X-Ray Diffraction