Green synthesis of copper oxide nanoparticles decorated reduced graphene oxide for high sensitive detection of glucose

2019 ◽  
Vol 94 ◽  
pp. 850-857 ◽  
Author(s):  
Sima Pourbeyram ◽  
Jamal Abdollahpour ◽  
Maryam Soltanpour
2018 ◽  
Author(s):  
Meng-Fai Cheong ◽  
Wei-Wen Liu ◽  
Cheng-Seong Khe ◽  
N. M. S. Hidayah ◽  
H. Cheun Lee ◽  
...  

2020 ◽  
Vol 13 (8) ◽  
pp. 6802-6814 ◽  
Author(s):  
Kavitha Ganesan ◽  
Vinoth Kumar Jothi ◽  
Abirami Natarajan ◽  
Arulmozhi Rajaram ◽  
Siranjeevi Ravichandran ◽  
...  

2016 ◽  
Vol 7 ◽  
pp. 1010-1017 ◽  
Author(s):  
Rebeca Ortega-Amaya ◽  
Yasuhiro Matsumoto ◽  
Andrés M Espinoza-Rivas ◽  
Manuel A Pérez-Guzmán ◽  
Mauricio Ortega-López

This work describes the formation of reduced graphene oxide-coated copper oxide and copper nanoparticles (rGO-Cu2ONPs, rGO-CuNPs) on the surface of a copper foil supporting graphene oxide (GO) at annealing temperatures of 200–1000 °C, under an Ar atmosphere. These hybrid nanostructures were developed from bare copper oxide nanoparticles which grew at an annealing temperature of 80 °C under nitrogen flux. The predominant phase as well as the particle size and shape strongly depend on the process temperature. Characterization with transmission electron microscopy and scanning electron microscopy indicates that Cu or Cu2O nanoparticles take rGO sheets from the rGO network to form core–shell Cu–rGO or Cu2O–rGO nanostructures. It is noted that such ones increase in size from 5 to 800 nm as the annealing temperature increases in the 200–1000 °C range. At 1000 °C, Cu nanoparticles develop a highly faceted morphology, displaying arm-like carbon nanorods that originate from different facets of the copper crystal structure.


Author(s):  
Monika Vats ◽  
Shruti Bhardwaj ◽  
Arvind Chhabra

Background & Objective: Nanoparticles are used in cosmetic and dermatologic products, due to better skin penetration properties. Incorporation of natural products exhibiting medicinal properties in nano-preparations could significantly improve efficacy of these products and improve the quality of life without the side effects of synthetic formulations. Methods: We here report green synthesis of Copper Oxide nanoparticles, using Cucumber extract, and their detailed biophysical and bio-chemical characterization. Results: These Copper Oxide-Cucumber nanoparticles exhibit significant anti-bacterial and anti-fungal properties, Ultra Violet-radiation protection ability and reactive-oxygen species inhibition properties. Importantly, these nanoparticles do not exhibit significant cellular toxicity and, when incorporated in skin cream, exhibit skin rejuvenating properties. Conclusion: Our findings have implications for nanoparticle-based cosmetics and dermatologic applications.


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