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.

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

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

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

JSU-UCSB PREM’s Nano Day Activity in Memphis Zoo

JSU-PREM Participants presented Nanoscience exhibition at the Memphis Zoo, Memphis, TN. Over 300 Participants gathered at the Zoo for Nano Day Download this highlight    

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

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.

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

Gold Nanotechnology can Identify Salmonella DT104 from Lettuce

Bio-conjugated Popcorn shape gold nanoparticle can pick multiple drug resistantSalmonella DT104 bacteria from food sample. A simple colorimetric test can detect Salmonella DT104 in 10 colony-forming unit (CFU)/mL level with high selectivity over other pathogens.

Hydrophobic Nanoporous Materials for Energy Absorption

Advanced energy absorption systems have recently been developed, in which external work is converted into stored energy by infiltrating nanoporous materials with liquid phases. Three-dimensionally ordered mesoporous (3DOm) carbon is studied as a new nanoporous material matrix for energy s

Development of self-assembled block copolymers

Self-assembled block copolymers (see the upper inset) can accommodate nanofillers in given polymeric domains resulting in an ordered spatial distribution of nanoparticles, induced by the self assembly of block copolymers and the preferential trapping on the nanofiller (see the left figure

Fabrication of “artificial” photonic quasi-crystals

We work on an fabrication method for “artificial” photonic quasi-crystal. The fabricated Penrose-type photonic quasicrystal shows ten-fold rotational symmetry. The Laue diffraction pattern from the photonic quasi-crystal is observed to be similar to that of the traditional alloy quasi-crys