scholarly journals Study on Nano Graphene Oxide Used to Enhance the Stability of Emulsion

2021 ◽  
Vol 692 (3) ◽  
pp. 032020
Author(s):  
Daming Wang ◽  
Hong Chen
Keyword(s):  
Graphene Oxide ◽  
Nano Graphene ◽  
The Stability ◽  
Stability Of Emulsion

Functionalized Nano-graphene Oxide as Multi-modal Clinic for Effective Drug Delivery

2017 ◽  
Vol 10 (4) ◽  
pp. 3768-3771
Author(s):  
Soumitra Satapathi ◽  
Rutusmita Mishra ◽  
Manisha Chatterjee ◽  
Partha Roy ◽  
Somesh Mohapatra
Keyword(s):  
Drug Delivery ◽  
Graphene Oxide ◽  
Cancer Cell ◽  
High Surface ◽  
High Surface Area ◽  
Cancer Cell Line ◽  
Xrd Analysis ◽  
Graphene Derivatives ◽  
Nano Graphene

Nano-materials based drug delivery modalities to specific organs and tissues has become one of the critical endeavors in pharmaceutical research. Recently, two-dimensional graphene has elicited considerable research interest because of its potential application in drug delivery systems. Here we report, the drug delivery applications of PEGylated nano-graphene oxide (nGO-PEG), complexed with a multiphoton active and anti-cancerous diarylheptanoid drug curcumin. Specifically, graphene-derivatives were used as nanovectors for the delivery of the hydrophobic anticancer drug curcumin due to its high surface area and easy surface functionalization. nGO was synthesized by modified Hummer’s method and confirmed by XRD analysis. The formation of nGO, nGO-PEG and nGO-PEG-Curcumin complex were monitored through UV-vis, IR spectroscopy. MTT assay and AO/EB staining found that nGO-PEG-Curcumin complex afforded highly potent cancer cell killing in vitro with a human breast cancer cell line MCF7.

scholarly journals Thermally Stimulated Desorption Optical Fiber-Based Interrogation System: An Analysis of Graphene Oxide Layers’ Stability

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 70
Author(s):  
Maria Raposo ◽  
Carlota Xavier ◽  
Catarina Monteiro ◽  
Susana Silva ◽  
Orlando Frazão ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Layer By Layer ◽  
Film Stability ◽  
A Value ◽  
Device Reliability ◽  
Sensor Devices ◽  
Lbl Films ◽  
The Stability

Thin graphene oxide (GO) film layers are being widely used as sensing layers in different types of electrical and optical sensor devices. GO layers are particularly popular because of their tuned interface reflectivity. The stability of GO layers is fundamental for sensor device reliability, particularly in complex aqueous environments such as wastewater. In this work, the stability of GO layers in layer-by-layer (LbL) films of polyethyleneimine (PEI) and GO was investigated. The results led to the following conclusions: PEI/GO films grow linearly with the number of bilayers as long as the adsorption time is kept constant; the adsorption kinetics of a GO layer follow the behavior of the adsorption of polyelectrolytes; and the interaction associated with the growth of these films is of the ionic type since the desorption activation energy has a value of 119 ± 17 kJ/mol. Therefore, it is possible to conclude that PEI/GO films are suitable for application in optical fiber sensor devices; most importantly, an optical fiber-based interrogation setup can easily be adapted to investigate in situ desorption via a thermally stimulated process. In addition, it is possible to draw inferences about film stability in solution in a fast, reliable way when compared with the traditional ones.

High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis

ACS Nano ◽  
2019 ◽  
Vol 13 (8) ◽  
pp. 9482-9490 ◽  
Author(s):  
Qinwei Wei ◽  
Songfeng Pei ◽  
Guodong Wen ◽  
Kun Huang ◽  
Zhaohong Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glassy Carbon ◽  
High Yield ◽  
Controlled Synthesis ◽  
Metal Free ◽  
Electrolytic Oxidation ◽  
Nano Graphene

Improved dispersibility of nano-graphene oxide by amphiphilic polymer coatings for biomedical applications

RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 77818-77829 ◽  
Author(s):  
Rana Imani ◽  
Wei Shao ◽  
Shahriar Hojjati Emami ◽  
Shahab Faghihi ◽  
Satya Prakash
Keyword(s):  
Graphene Oxide ◽  
Biomedical Applications ◽  
Aqueous Media ◽  
Polymer Coatings ◽  
Amphiphilic Polymer ◽  
Nano Materials ◽  
Biological Applications ◽  
The Poor ◽  
Nano Graphene

The poor dispersibility of graphene-based nano-materials in aqueous media is a crucial limitation in their biological applications.

scholarly journals New insights into the solubility of graphene oxide in water and alcohols

2017 ◽  
Vol 19 (26) ◽  
pp. 17000-17008 ◽  
Author(s):  
Vadim V. Neklyudov ◽  
Nail R. Khafizov ◽  
Igor A. Sedov ◽  
Ayrat M. Dimiev
Keyword(s):  
Graphene Oxide ◽  
Chemical Interactions ◽  
The Stability

Here we demonstrate that the solubility of GO, and the stability of as-formed solutions depend not just on the solute and solvent cohesion parameters, as commonly believed, but mostly on the chemical interactions at the GO/solvent interface.

The effect of indocyanine green loaded on a novel nano-graphene oxide for high performance of photodynamic therapy against Enterococcus faecalis

2017 ◽  
Vol 20 ◽  
pp. 148-153 ◽  
Author(s):  
Tayebeh Akbari ◽  
Maryam Pourhajibagher ◽  
Farzaneh Hosseini ◽  
Nasim Chiniforush ◽  
Elham Gholibegloo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Photodynamic Therapy ◽  
Indocyanine Green ◽  
Enterococcus Faecalis ◽  
High Performance ◽  
Nano Graphene
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