1. •  Biomedical Nanomagnetics

Comprehensive strategies for therapeutics, diagnostics and imaging using functionalized & tailored magnetic nanoparticles and tracers. Current work includes:

Imaging: Superior MRI contrast agents sensitive to biological processes. Development of the alternative, quantitative Magnetic Particle Imaging technology ( see, commercialization).

Therapy: Develop, functionalize and optimize magnetic nanoparticles for targeting, drug/gene delivery, image enhancements and hyperthermia.

Diagnostics:  Biosensing using magnetic relaxation in solution and chip-based magnetic separation for immunoassays. Magnetophoretic mobility and manipulation of bilological structures using magnetic beads.

Cytotoxicity, Biodistribution and Particokinetics:  Cell culture and animal models

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1. •  Thin Films and Patterned Elements/Arrays

1. •  Chemical and physical synthesis of metallic & oxide
   

    nanocrystals, including core-shell structures, with narrow

    size distributions, controlled shapes and tailored surface

    morphologies.

1. •  Self-assembly in weakly interacting systems.
   

2. •  Static/dynamic magnetic behavior as a function of assembly,
   

   dimensionality and inter-particle interactions

1. •  Charge & spin transport and phase stability in
   

   nanocomposites

1. •  Exchange, Proximity and Interface Effects emphasizing
   

   Exchange Bias (AFM/FM) and Exchange Spring (FM/FM)

   behavior

1. •  Epitaxial growth by UHV Ion Beam deposition
   

2. •  Nanoimprint Lithography:  Process development and
   

   fundamental properties at characteristic length scales

1. •   Photovoltaics & energy conversion devices

1. •  Development of low cost photovoltaics by ink-jet   
   

   printing and earth-abundant materials. 

1. •  Rare-earth-free permanent magnets for energy conversion
   

   (motors, wind generators).

1. •  Magnetocaloric materials for magnetic refrigeration.

1. •   Advanced Materials Characterization

1. • Electron, photons, neutrons & scanning probes
   

2. •  Role of the physical, chemical & magnetic microstructure
   

   at relevant length scales in determining the functional

   behavior of engineered materials

1. •  A range of scattering, spectroscopy & imaging methods are
   

   used including : 

1. • Structural characterization (x-ray reflectivity, small-angle x-ray
   

   scattering) and microstructural investigations using advanced

   transmission electron microscopy

1. •  Surface characterization by scanning probe microscopy
   

2. •  Magnetic characterization and imaging by neutron scattering
   

   (IPNS), x-ray magnetic circular dichroism (ALS), photo-emission

   electron microscopy (ALS), electron holography, Lorentz

   microscopy and magnetic force microscopy

1. •   Spin electronics: Materials, Physics &
   

    Devices

1. •  Defect-mediated ferromagnetism in dilute magnetic 
   

    semiconducting oxides.

1. •  Development of new materials and thin film architectures
   

   for spinelectronics that offer the potential for integration

   with silicon based semiconductor technologies.

1. •  Spin-resolved quantum conduction using break junctions.
   

2. •  Nanoscale transport and devices in nanoparticle conducting
   

   polymer hybrids.

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