A comparison of performance of three different types of graphene biosensors for the detection of prostate specific antigen was reported. Three different graphene structures were synthesized by mechanical exfoliation, microfluidic and self assembly respectively, representing graphene composites from pure to hybrid. Various parameters of different types of graphene biosensors were compared, such ...

We report a first-principles study of hydrogen storage media consisting of calcium atoms and graphene-based nanostructures. We find that Ca atoms prefer to be individually adsorbed on the zigzag edge of graphene with a Ca-Ca distance of 10 A without clustering of the Ca atoms, and up to six H(2) molecules can bind to a Ca atom with a binding energy of approximately 0.2 eV/H(2). A Ca-decorated z...

The electronic and adsorption properties of graphene can be changed significantly through substitutional doping with nitrogen and nitrogen decoration of vacancies. Here ab initio density functional theory with a dispersion correction was used to investigate the stability, magnetic and adsorption properties of nine defects in graphene, including both nitrogen substitutional doping and nitrogen d...

Genistein (5,7,4′-trihydroxyisoflavone) is an isoflavone abundantly found in soy and other legumes acts as a selective estrogen receptor modulator (SERM). When testing for similar abilities among flavonoids, it has been to be strong topoisomerase inhibitor. Similar some high-dose chemotherapy drugs, was strongly toxic normal cells. In this study, the adsorption of genistein on surface exclusive...

We demonstrated the effect of superparamagnetic Fe3O4 nanoparticles on Schottky barriers of graphene, in which the Fe3O4 nanoparticles were fabricated by a hydrothermal method and the single-layer graphene sheets were mechanically exfoliated from Kish graphite. The Fe3O4 nanoparticles were superparamagnetic with the saturation magnetic moment of about 32 emu/g at room temperature. We have found...

We theoretically study absorption by an undoped graphene layer decorated with arrays of small particles. We discuss periodic and random arrays within a common formalism, which predicts a maximum absorption of 50% for suspended graphene in both cases. The limits of weak and strong scatterers are investigated, and an unusual dependence on particle-graphene separation is found and explained in ter...

We demonstrate a novel, rapid and label-free assay for the detection of Ag(+) and biothiols with high sensitivity and selectivity by utilization of Ag nanoparticle-decorated graphene quantum dots.

The objective of this work was to prepare hybrid nanoparticles of graphene sheets decorated with strontium metallic nanoparticles and demonstrate their advantages in bone tissue engineering. Strontium-decorated reduced graphene oxide (RGO_Sr) hybrid nanoparticles were synthesized by the facile reduction of graphene oxide and strontium nitrate. X-ray diffraction, transmission electron microscopy...

Correction for 'Reduced graphene oxide nanosheets decorated with Au-Pd bimetallic alloy nanoparticles towards efficient photocatalytic degradation of phenolic compounds in water' by Gitashree Darabdhara, et al., Nanoscale, 2016, 8, 8276-8287.

Graphene, a monolayer of graphite, has appeared as one of the most fascinating materials of today’s Material Science research. The properties of graphene (GR) with high electronic conductivity, extraordinary strength and interesting chemical characteristics make it suitable for many different applications. All these tremendous properties of GR are relevant at the nanoscale, hence, in a view to ...