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Reversible Behavior in 17nm Fe3O4 Capped Janus Particles
Reversible Behavior in 17nm Fe3O4 Capped Janus Particles
Oct 3, 2012

Reversible Behavior in 17nm Fe3O4 Capped Janus Particles

The structure transitions from staggered to loose double chain configuration as the voltage is ramped down at constant magnetic field. As the voltage is ramped back up the structure reforms and the staggered character begins to re-emerge.
Oct 3, 2012

Numerical Simulations of Droplet Deformation Under Shear Flow

Numerical simulations of the deformation of a droplet in viscous fluid under shear flow are performed with the Lattice Boltzmann method (LBM) based on the Cahn-Hilliard diffuse interface approach. The Degree of confinement between two parallel walls, which is defined as the ration betwee
Oct 3, 2012

Molecular Dynamics Simulations of Drops Falling on a Surface

Molecular dynamics simulations are used to study the dynamics of drop splashing on a solid surface. In agreement with experiment, we observe that splashes occur only in the presence of vapor. We are investigating how the flow in the vapor produces the stress which tears the drop into fr
Jul 3, 2012

PREM Multidisciplinary Research and Education in Computational Materials Charge and Spin Transport and quantum Hall effect in 2D Systems

We have developed new state of the art density matrix renormalization group (DMRG) and transport codes, which can deal with large electron systems with interaction. Right two figures represent some results we obtained with our collaborators. On the right side, top panel shows our quantum
Jul 3, 2012

Approaching the intrinsic band gap in suspended high-mobility graphene nanoribbons

Electrical transport measurements on a suspended ultra-low-disorder graphene nanoribbon (GNR) with nearly atomically smooth edges have been carried out by Zhixian Zhou and co-workers at Wayne State University that reveal a high mobility exceeding 3000 cm2 V−1 s−1 and an intrinsic band gap.
Jun 26, 2012

Gallaudet, the National University for the Deaf, joins the PREM Program

In 2011, Gallaudet University joined the Howard, Hopkins Prince Georges Community College PREM. Three Gallaudet students were mentored by Prof. Paul Sabila in summer research at Howard in Jason Matthews’ research group. In addition to research, the students took part in nanotechnology trai
May 14, 2012

Self-Assembly of Biofunctional Polymer on Graphene Nanoribbons

Clark Atlanta University researchers supported by the NSF PREM project worked on supramolecular self-assembly of biofunctional-modified poly(2 methoxystyrene) on graphene nanoribbons. The bioactive polymer has attracted a considerable interest owing to its versatile properties as a bisosen
May 14, 2012

Tunable bands in biased multilayer epitaxial graphene

Clark Atlanta University and Georgia Tech. researchers supported by the NSF PREM project studied the electronic characteristics of multilayer epitaxial graphene under a perpendicularly applied electric bias.
May 14, 2012

Scientific Literacy Pre-Freshman Bridge Summer Science Program

Students in Bridge Program along with Dr. Ann Watts, Associate Vice President for Academic Affairs. A Pre-Freshman Bridge Summer Science Program at Morehouse College was designed to develop an advanced level of scientific  literacy among pre-freshmen science majors with the goal of incr
May 14, 2012

A Label-Free Direct Cyanide Detection using Gold Nanotechnology

We have developed SERS based sensor for extremely toxic cyanide ion recognition quickly, selectively  and accurately without any tagging, at 110 ppt level. Download this highlight