نتایج جستجو برای: nanographene

تعداد نتایج: 237  

2016
Mojtaba Hadi Ali Ehsani

Electroanalytical parameters of different graphitic carbon-based electrode materials were compared to select the best one for the pantoprazole electroanalysis. Such parameters include sensitivity, repeatability, residual background current, and signal-tobackground current ratio of the analytical response and such electrodes include conventional carbon-based electrodes such as glassy carbon (GC)...

2013
Stuart J Corr Mustafa Raoof Brandon T Cisneros Oleksandr Kuznetsov Katheryn Massey Warna D Kaluarachchi Matthew A Cheney Edward W Billups Lon J Wilson Steven A Curley

Highly exfoliated sulfonated graphene sheets (SGSs), an alternative to graphene oxide and graphene derivatives, were synthesized, characterized, and applied to liver cancer cells in vitro. Cytotoxicity profiles were obtained using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, WST-1[2-(4-iodophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, and lactate dehydrogenase...

Journal: :Nano letters 2010
Kai Yang Shuai Zhang Guoxin Zhang Xiaoming Sun Shuit-Tong Lee Zhuang Liu

Although biomedical applications of carbon nanotubes have been intensively studied in recent years, its sister, graphene, has been rarely explored in biomedicine. In this work, for the first time we study the in vivo behaviors of nanographene sheets (NGS) with polyethylene glycol (PEG) coating by a fluorescent labeling method. In vivo fluorescence imaging reveals surprisingly high tumor uptake ...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2015
Purbarun Dhar Soumya Bhattacharya Suprabha Nayar Sarit K Das

Collagen microfibrils biomimetically intercalate graphitic structures in aqueous media to form graphene nanoplatelet-collagen complexes (G-Cl). Synthesized G-Cl-based stable, aqueous bionanocolloids exhibit anomalously augmented charge transportation capabilities oversimple collagen or graphene based colloids. The concentration tunable electrical transport properties of synthesized aqueous G-Cl...

2014
Lisandro Cunci Carlos A. Velez Ivan Perez Amal Suleiman Eduardo Larios Miguel José-Yacamán James J. Watkins Carlos R. Cabrera

The electrochemical reduction of highly oxidized unsupported graphene oxide nanosheets and its platinum electrodeposition was done by the rotating disk slurry electrode technique. Avoiding the use of a solid electrode, graphene oxide was electrochemically reduced in a slurry solution with a scalable process without the use of a reducing agent. Graphene oxide nanosheets were synthesized from car...

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