Analysis of the effect of organic solvent–sheet interfacial interaction on the exfoliation of sulfur-doped reduced graphene oxide sheets in a solvent system using molecular dynamics simulations

2020 ◽  
Vol 22 (36) ◽  
pp. 20665-20672
Author(s):  
Yuna Oh ◽  
Hoi Kil Choi ◽  
Hana Jung ◽  
Jeong-Un Jin ◽  
Young-Kwan Kim ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Graphene Oxide ◽  
Organic Solvent ◽  
Molecular Dynamics Simulations ◽  
Reduced Graphene Oxide ◽  
Solvent System ◽  
Interfacial Interaction ◽  
Reduced Graphene ◽  
Dynamics Simulations ◽  
Graphene Oxide Sheets

In this study, the effect of interfacial interaction between solvent and sheets on the exfoliation of sulfur-doped reduced graphene oxide (SrGO) sheets was studied, using molecular dynamics simulations.

scholarly journals Molecular Dynamics Simulations of DNA Adsorption on Graphene Oxide and Reduced Graphene Oxide-PEG-NH2 in the Presence of Mg2+ and Cl− ions

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 289 ◽  
Author(s):  
Sebastian Muraru ◽  
Cosmin G. Samoila ◽  
Emil I. Slusanschi ◽  
Jorge S. Burns ◽  
Mariana Ionita
Keyword(s):  
Molecular Dynamics ◽  
Graphene Oxide ◽  
Nucleic Acid ◽  
Reduced Graphene Oxide ◽  
Electrostatic Interactions ◽  
Nucleic Acid Hybridization ◽  
Stacking Interactions ◽  
Dna Adsorption ◽  
Reduced Graphene ◽  
Dynamics Simulations

Graphene and its functionalised derivatives are transforming the development of biosensors that are capable of detecting nucleic acid hybridization. Using a Molecular Dynamics (MD) approach, we explored single-stranded or double-stranded deoxyribose nucleic acid (ssDNA or dsDNA) adsorption on two graphenic species: graphene oxide (GO) and reduced graphene oxide functionalized with aminated polyethylene glycol (rGO-PEG-NH2). Innovatively, we included chloride (Cl−) and magnesium (Mg2+) ions that influenced both the ssDNA and dsDNA adsorption on GO and rGO-PEG-NH2 surfaces. Unlike Cl−, divalent Mg2+ ions formed bridges between the GO surface and DNA molecules, promoting adsorption through electrostatic interactions. For rGO-PEG-NH2, the Mg2+ ions were repulsed from the graphenic surface. The subsequent ssDNA adsorption, mainly influenced by electrostatic forces and hydrogen bonds, could be supported by π–π stacking interactions that were absent in the case of dsDNA. We provide a novel insight for guiding biosensor development.

Investigation of Raman and photoluminescence studies of reduced graphene oxide sheets

2011 ◽  
Vol 106 (3) ◽  
pp. 501-506 ◽  
Author(s):  
Karthikeyan Krishnamoorthy ◽  
Murugan Veerapandian ◽  
Rajneesh Mohan ◽  
Sang-Jae Kim
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Photoluminescence Studies ◽  
Graphene Oxide Sheets

scholarly journals Surface plasmon enhanced photoluminescence of ZnO nanorods by capping reduced graphene oxide sheets

2014 ◽  
Vol 22 (10) ◽  
pp. 11436 ◽  
Author(s):  
Feng Han ◽  
Shuming Yang ◽  
Weixuan Jing ◽  
Kyle Jiang ◽  
Zhuangde Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Zno Nanorods ◽  
Enhanced Photoluminescence ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

Tethering mesoporous Pd nanoparticles to reduced graphene oxide sheets forms highly efficient electrooxidation catalysts

2017 ◽  
Vol 5 (40) ◽  
pp. 21249-21256 ◽  
Author(s):  
Muhammad Iqbal ◽  
Cuiling Li ◽  
Bo Jiang ◽  
Md. Shahriar A. Hossain ◽  
Md. Tofazzal Islam ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pd Nanoparticles ◽  
Solution Phase ◽  
Phase Synthesis ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Solution Phase Synthesis ◽  
Graphene Oxide Sheets

Uniformly sized mesoporous palladium (Pd) nanoparticles supported on reduced graphene oxide (rGO) surfaces can be prepared by solution phase synthesis.

Photochemical loading of metal nanoparticles on reduced graphene oxide sheets using phosphotungstate

Carbon ◽  
2011 ◽  
Vol 49 (11) ◽  
pp. 3454-3462 ◽  
Author(s):  
Gun-hee Moon ◽  
Yiseul Park ◽  
Wooyul Kim ◽  
Wonyong Choi
Keyword(s):  
Graphene Oxide ◽  
Metal Nanoparticles ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets
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