graphene oxide – Page 2 – TechConnect Briefs

Competitive Binding of Natural Amphiphiles to Graphene derivatives

Radic S., Geitner N., Podila R., Ke P.C., Ding F., Clemson University, US

Understanding the interaction between graphene derivatives and natural amphiphiles in biological and environmental milieu is important for the biosustainability and biocompatibility of graphene nanotechonology. Using rapid discrete molecular dynamics simulations, we systematically studied the binding [...]

High Performance Supercapacitors Based on Thermal Reduced Graphene Oxide

Perego D., Franz S., Bestetti M., Borioli C., Politecnico di Milano, IT

THERMALLY REDUCED GRAPHENE OXIDE BASED SUPERCAPACITORS HAVE BEEN FABRICATED AND TESTED. ELECTRODES BASED ON METAL SUBSTRATE (TI, AISI304, NI, AL) WERE FABRICATED BY EITHER BY ELECTROPHORESIS AND SPRAY COATING OF GRAPHENE OXIDE SOLUTIONS. ELECTROCHEMICAL TEST [...]

Different contribution of carbon nanotubes and graphene oxide in single nucleotide polymorphism for the diagnosis of human mad-cow disease

Choi W., Lee J-H., Luminescent MD, LLC, US

Rapid single nucleotide polymorphism (SNP) with 1,1’-oxalylimidazole chemiluminescence (ODI-CL) detection was developed for the early diagnosis of human mad-cow disease. Mutated single strand DNA (ssDNA) sequence discovered from patients having human mad-cow disease rapidly hybridize [...]

Background free biosensor using the combination of graphene oxide and Fe3O4 nanoparticles

Cho S., Park L., Chung R., Lee J-H., Luminescent MD, LLC, US

Cost-effective and rapid biosensor with background free chemiluminescence (CL) detection was developed using ssDNA aptamer-conjugated 6-FAM fluorescein (DAF), graphene oxide bound with magnetic nanoparticle (GMN), and 3,4,5-trimethoxyphenylglyoxal (TMPG). When thrombin was incubated in TE buffer [...]

Development of rapid aptasensor using graphene oxide and 1,1’-oxalyldiimidazole chemiluminescence detection

Kwun J., Yun S., Lee J-H., Luminescent MD, LLC, US

Highly selective and sensitive aptasensor capable of rapidly quantifying Vibrio parahaemolyticus in the presence of Vibio cholera and Vibrio vulnificus was developed using an specific DNA aptamer, graphene oxide and 1,1’-oxalyldiimidazole chemiluminescence (ODI CL) detection. [...]

Nano Graphene Oxide as Drug Carrier for Antihypertensive Agent: Benazepril, Captopril and Losartan

Wang J., Long Y., Tao C., Liu H., Zhu H., Zhou X., National University of Defense Technology, CN

Graphene oxide (GO) offers large surface and novel biocompatible properties that are currently being explored for advanced drug carriers. GO has a one-atom-thick two dimensional carbon system, which contains several kinds of oxygen functional groups [...]

Ultratough Artificial Nacre Based on Conjugated Cross-linked Graphene Oxide

Cheng Q., Beihang University, CN

In this work, inspired by the relationship of excellent toughness and hierarchical nano-/micro-scale structure of natural nacre, we developed a novel strategy for fabricating the integration of ultratough and high strength artificial nacre based on [...]

Facile Preparation of Graphene Composite Materials and Their Application

Nishina Y., Okayama University, JP

We have successfully achieved the new preparation technique of graphene oxide from graphite with “Rapid Hummers method”. The graphene oxide was functionalized by selective reduction of C-O bonds and by making composites with metal nanoparticles, [...]

One-pot synthesis of monodisperse PbSe quantum dots and graphene oxide nanocomposites

Pan Yi, Lombardi J.R., City College of New York, US

A new, one-pot method to synthesize monodisperse PbSe quantum dots (QDs) and graphene oxide (GO) nanocomposites (GO-PbSeQDs) is reported here. PbCl2 complexed with oleylamine was used as the Pb precursor. Se powder dissolved in long [...]