graphene – Page 4 – TechConnect Briefs

Strong, controllable, robust, and scalable graphene n-doping for optoelectronic and micro/nano-electronic applications

Folkson J., Ashraf A., Eisaman M.D., Stony Brook University(SBU)/Brookhaven National Lab(BNL), US

Graphene holds promise for many applications such as microelectronics, optoelectronics, and energy storage due to its outstanding properties. The realization of these applications, however, requires tailoring graphene’s electronic properties via controlled doping (addition or removal [...]

Adsorption of Cl adatom on Na-Decorated graphene

Yuan G., Song X., Li C., Wang J., Mimura H., Ocean University of China, CN

In this presentation, the effects of the Cl adatom on Na-decorated graphene are studied using first principles density functional theory. The adsorption energy, geometric structure, charge density difference, and density of states are calculated under [...]

Integration of graphene into nanoelectronic devices: insights from atomistic simulations

Garcia M., Artacho E., Simune Atomistics S.L., ES

A deep knowledge on the electronic properties of graphene derivatives is critical to successful integration of graphene into future nanoelectronic devices. We investigate the electronic properties of graphene upon adsorption of gases expected to be [...]

Nephrotoxicity of Dextran Functionalized Graphene Nanoparticles and Their Potential as Magnetic Imaging Contrast Agents for Renal Abnormalities

Lee S., Kanakia S., Toussaint J., Kukarni P., Chowdhury S.M., Khan S., Shroyer K., Moore W., Sitharaman B., Stony Brook University, US

Contrast-enhanced magnetic resonance angiography (MRA) employs the use of blood pool contrast agents (CA) such as gadolinium (Gd3+) complexes that allow for delayed phase arterial and venous imaging and improve the sensitivity in detecting small [...]

Oxidized Graphene Nanoribbons as a Delivery System for the Bioactive Sphingolipid Ceramide

Suhrland C., Truman J.P., Sitharaman B., Stony Brook University, US

Dysregulation of the metabolic pathways of the sphingolipid ceramide has been shown to play key roles in cancer cell proliferation and survival. Targeting these pathways with exogenous modulators of ceramide metabolism such as the short [...]

Fabrication and Design of Carbon Nanomaterials Based Scale Monitoring Smart Sensor Systems

Younes H., Jelbuldina M., Sofela S.O., Tizan L., Al Ghaferi A., Saadat I., Masdar, AE

Scale is the creation of inorganic soluble salts from aqueous brines during oil and gas production. The scale deposits at the internal surface of the pipelines under the supersaturation conditions. The deposition of the scale [...]

Cellulose Acetate Nanocomposite Membranes for Water Desalination Applications

Ramadan A.R., Esawi A.M.K., El Badawi N., Mahmoud M., The American University in Cairo, EG

Interest in the use of membranes in water desalination applications has been increasingly developing due to their numerous advantages. Among the various desalination technologies, ‎Reverse Osmosis (RO) membrane processes are steadily becoming more reliable and [...]

Non-conductive ferromagnets based on core double-shell nanocomposites for radio-electric applications

Takacs H., Viala B., Hermán V., Tortai J.-H., Duclairoir F., Alarcon Ramos J., Jouneau P.-H., Okuno H., Tallec G., CEA, FR

We report a novel flexible nanotechnology for consumer product engineering as a complementary approach from solid-state manufacturing techniques based on metallic nanoparticles and graphene chemistries. We describe two chemical routes for producing closely-packed disordered assemblies [...]

Ultrasensitive mercury sensors based on graphene decorated with nanoparticles

Ayesh A.I., Qatar University, QA

In this work we present a highly sensitive and selective sensor for detection of mercury traces in water. The sensor is constructed by creating interdigitated metal electrodes on a graphene layer placed on SiO2/Si substrate. [...]

Breast cancer diagnosis system using the combination of carcinoembryonic antigen aptamer, horseradish peroxidase-mimic hemin, and graphene sheet

Chong S., Cho K., Chong S., Khang H.J., Lee J-H., Lee S-Y, Kim Y.T., Lee J-H., Lee S-Y, Luminescent MD, LLC, US

In order to early diagnose breast cancer with the rapid quantification of carcinoembryonic antigen (CEA) in human serum, highly sensitive DNA aptasensor with 1,1-oxalyldiimidazole chemiluminescence (ODI-CL) detection was developed using the combination of CEA aptamer, [...]