Design and synthesis of NiO nanoflakes/graphene nanocomposite as high performance electrodes of pseudocapacitor

Zhu, Yunguang; Cao, Gaoshao; Sun, Chengyue; Xie, Jian; Liu, Shuang-Yu; Zhu, Tiejun; Zhao, Xinbing; Yang, Hui Ying

doi:10.1039/c3ra42091d

Cited by 66 publications

(21 citation statements)

References 32 publications

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“…8,[49][50][51] AgNP-decorated graphene is most promising for optoelectronics, 51 catalysis, 52 and electrochemistry 53 applications; it also shows enhanced antibacterial activity. 45,54,55 Therefore, the fabrication of graphene-Ag nanocomposites is of great interest.…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide–silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Gurunathan¹,

Han²,

Park³

et al. 2015

IJN

233

218

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Background Graphene and graphene-based nanocomposites are used in various research areas including sensing, energy storage, and catalysis. The mechanical, thermal, electrical, and biological properties render graphene-based nanocomposites of metallic nanoparticles useful for several biomedical applications. Epithelial ovarian carcinoma is the fifth most deadly cancer in women; most tumors initially respond to chemotherapy, but eventually acquire chemoresistance. Consequently, the development of novel molecules for cancer therapy is essential. This study was designed to develop a simple, non-toxic, environmentally friendly method for the synthesis of reduced graphene oxide–silver (rGO–Ag) nanoparticle nanocomposites using Tilia amurensis plant extracts as reducing and stabilizing agents. The anticancer properties of rGO–Ag were evaluated in ovarian cancer cells. Methods The synthesized rGO–Ag nanocomposite was characterized using various analytical techniques. The anticancer properties of the rGO–Ag nanocomposite were evaluated using a series of assays such as cell viability, lactate dehydrogenase leakage, reactive oxygen species generation, cellular levels of malonaldehyde and glutathione, caspase-3 activity, and DNA fragmentation in ovarian cancer cells (A2780). Results AgNPs with an average size of 20 nm were uniformly dispersed on graphene sheets. The data obtained from the biochemical assays indicate that the rGO–Ag nanocomposite significantly inhibited cell viability in A2780 ovarian cancer cells and increased lactate dehydrogenase leakage, reactive oxygen species generation, caspase-3 activity, and DNA fragmentation compared with other tested nanomaterials such as graphene oxide, rGO, and AgNPs. Conclusion T. amurensis plant extract-mediated rGO–Ag nanocomposites could facilitate the large-scale production of graphene-based nanocomposites; rGO–Ag showed a significant inhibiting effect on cell viability compared to graphene oxide, rGO, and silver nanoparticles. The nanocomposites could be effective non-toxic therapeutic agents for the treatment of both cancer and cancer stem cells.

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Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide–silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Gurunathan¹,

Han²,

Park³

et al. 2015

IJN

233

218

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“…Y.G. Zhu et al synthesized NiO nanoflakes/graphene(NiO/G) composites by a simple hydrothermal method followed by thermal treatment with N 2 gas [19]. The synergistic effect from this hybrid structure led to the significantly improved cycling stability of NiO/G supercapacitor.…”

Section: Introductionmentioning

confidence: 94%

Preparation and electrochemical characteristic of porous NiO supported by sulfonated graphene for supercapacitors

Wang

Tian

Wang

et al. 2015

Electrochimica Acta

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“…Moreover, most of the previous studies focus on fabricating a carbon coating on the surface of the iron oxides [6,26e30], and there is almost no work on varying the morphology and size of the iron oxides during the CVD process. In addition, previous studies focus mostly on the preparation of porous [27], hollow [31] and nano-sized [ [26]. The porous g-Fe 2 O 3 @C disks show capacity retention of 82% after 40 cycles [27].…”

Section: Introductionmentioning

confidence: 99%

“…Progress has been achieved in improving the electrochemical properties of iron oxide by coating a carbon layer via CVD [26,27,31]. However, investigations are still very limited.…”

Section: Introductionmentioning

confidence: 99%

Chemical vapor deposition prepared bi-morphological carbon-coated Fe3O4 composites as anode materials for lithium-ion batteries

Wang

Gao

Wang

et al. 2015

Journal of Power Sources

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Design and synthesis of NiO nanoflakes/graphene nanocomposite as high performance electrodes of pseudocapacitor

Cited by 66 publications

References 32 publications

Reduced graphene oxide–silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Reduced graphene oxide–silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Preparation and electrochemical characteristic of porous NiO supported by sulfonated graphene for supercapacitors

Chemical vapor deposition prepared bi-morphological carbon-coated Fe3O4 composites as anode materials for lithium-ion batteries

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Design and synthesis of NiO nanoflakes/graphene nanocomposite as high performance electrodes of pseudocapacitor

Cited by 66 publications

References 32 publications

Reduced graphene oxide&ndash;silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Reduced graphene oxide&ndash;silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Preparation and electrochemical characteristic of porous NiO supported by sulfonated graphene for supercapacitors

Chemical vapor deposition prepared bi-morphological carbon-coated Fe3O4 composites as anode materials for lithium-ion batteries

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Reduced graphene oxide–silver nanoparticle nanocomposite: a potential anticancer nanotherapy

Reduced graphene oxide–silver nanoparticle nanocomposite: a potential anticancer nanotherapy