ScienceDirect Search Alert: Graphene Research

Search alert: Graphene Research

4 New articles available on ScienceDirect

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Mechanical properties of Graphene: Molecular dynamics simulations correlated to continuum based scaling laws   Original Research Article Computational Materials Science, Volume 125, December 2016, Pages 319-327 B. Javvaji, P.R. Budarapu, V.K. Sutrakar, D. Roy Mahapatra, M. Paggi, G. Zi, T. Rabczuk Graphical abstract The combined effect of lattice orientation (Fig. 1(a)), domain size and crack length (Fig. 1(b)) on the mechanical properties of Graphene, namely the yield strength and strain, are studied extensively based on molecular dynamics (MD) simulations. Numerical predictions are compared to the continuum-based laws of size effect and multifractal scaling. Stresses estimated from the MD simulations, around the crack tip before and after the first bond break for domain sizes 10nm, 43nm, 60nm and 86nm, when the lattice is oriented along (c) 0° and (d) 30°. Configurations just before and after the first bond break and after the second bond break, are shown in the first, second and third columns, respectively. The yield strength is found to vary with the specimen size as ≈L−1/3, which is in agreement with the multifractal scaling law and as the inverse square of the initial crack length ≈a0-1/2, satisfying the Griffith's energy criteria for fracture. DNA adsorbed on graphene and graphene oxide: Fundamental interactions, desorption and applications   Review Article Current Opinion in Colloid & Interface Science, Available online 17 September 2016, Pages Biwu Liu, Shehan Salgado, Vivek Maheshwari, Juewen Liu Graphical Abstract The mechanism of DNA oligonucleotide adsorption by GO, and graphene, and subsequent desorption induced by cDNA and various denaturing conditions is summarized. This is a complex and interesting bio-interfacial system due to the effect of DNA sequence, length, hybridization and the heterogeneous nanoscale structure of GO.Image 1 A combined self-assembly and calcination method for preparation of nanoparticles-assembled cobalt oxide nanosheets using graphene oxide as template and their application for non-enzymatic glucose biosensing   Original Research Article Journal of Colloid and Interface Science, Available online 17 September 2016, Pages Haiyan Zhang, Sen Liu Graphical abstract A novel electrochemical sensor based on FeS anchored reduced graphene oxide nanosheets for simultaneous determination of dopamine and acetaminophen   Original Research Article Materials Science and Engineering: C, Available online 17 September 2016, Pages Xiaoya Liu, Enbo Shangguan, Jing Li, Sashuang Ning, Litan Guo, Quanmin Li Access all 4 new results in ScienceDirect for : TITLE(graphene) and TITLE-ABSTR-KEY(graphene)

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