نتایج جستجو برای: carbon nanotubes

تعداد نتایج: 286785  

Journal: :iranian journal of analytical chemistry 2014
jahanbakhsh raoof mohammad ali karimi leila asadian-zarrinabadi mohaddeseh amiri-aref

the electrochemical oxidation and determination of tryptophan (trp) and glutathione (gsh) in the presence of catechol as a homogeneous redox in the aqueous medium were investigated at the surface of a carbon paste electrode modified with multi-walled carbon nanotube (mwcnt-cpe) using cyclic voltammetry (cv), double step potential chronoamperometry and differential pulse voltammetry (dpv) techni...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
mariane trépanier ahmad tavasoli sanaz anahid ajay k. dalai

the effects of electronic properties of inner and outer surfaces of carbon nano tubes (cnts) on the deactivation of cobalt fischer-tropsch (ft) catalysts were studied. the comparative characterization of the fresh and used catalysts by tem, xrd, tpr, bet and h2 chemisorption showed that cobalt re-oxidation, cobalt-support interactions and sintering are the main sources of catalyst deactivation....

In this work, the first in the world of science, the focus was on the best angle of connection between carbon nanotubes and the most widely used group of antibiotics. While having the highest stability, in terms of energy, we have the best angle of to connect to the in vivo delivery of intraoperative antibiotic binding with carbon nanotubes not lost. It will never work in the world of science. ...

Journal: :polyolefins journal 0
alireza nikfarjam department of mems&nems, faculty of new sciences and technologies, university of tehran, p.o.box:14395-1561, tehran, iran roham rafiee composites research laboratory, faculty of new sciences and technologies, university of tehran, tehran 1439955941 iran mostafa taheri composites research laboratory, faculty of new sciences and technologies, university of tehran, tehran 1439955941 iran

isolated carbon nanotubes (cnts), cnt films and cnt-polymer nanocomposites are a new generation of materials with outstanding mechanical, thermal, electrical and electromagnetic properties. the main objective of this article is to provide a comprehensive review on the investigations performed in the field of characterizing electrical and electromagnetic properties of isolated cnts and cnt-reinf...

Journal: :iranian journal of pharmaceutical research 0
mahmoud jafari department of physics, k. n. toosi university of technology, tehran, iran danial heidari department of physics, k. n. toosi university of technology, tehran, iran pedram ebrahimnejad -department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran

multifunctional nanomaterials showed graet advantages in drug delivery. folic acid (fa) binding protein, a glycosyl phosphatidyl inositol anchored cell surface receptor for folate, is overexpressed in several human tumors, whereas it is highly restricted in normal tissues. therefore, in this study, fa, polyethylene glycol (peg), and fe3o4 nanoparticles multifunctionalized short multiwall carbon...

Journal: :nanomedicine research journal 0
ehsan zayerzadeh department of biology, faculty of food industry and agriculture, standard research institute, karaj, iran azadeh fardipour department of quality control, razi vaccine and serum research institute, karaj, iran meisam shabanian faculty of chemistry and petrochemical engineering, standard research institute, karaj,iran mohammad kazem koohi department of basic sciences, faculty of veterinary medicine, university of tehran, tehran, iran

objective(s): carbon nanotubes have unique mechanical, electrical, and thermal properties, with potential different applications in nanomedicine, electronics, and other industries. these new applications of carbon nanotubes in different industries lead to the increased exposure risk of nanomaterials to human. up to now, all aspects of carbon nanotubes toxicity are not completely clear following...

Journal: :physiology and pharmacology 0
parichehr hassanzadeh parichehr hassanzadeh nanotechnology research center faculty of pharmacy tehran university of medical sciences elham arbabi research center for gastroenterology and liver diseases, shahid beheshti university of medical sciences fatemeh rostami research center for gastroenterology and liver diseases, shahid beheshti university of medical sciences fatemeh atyabi nanotechnology research centre, faculty of pharmacy, tehran university of medical sciences, tehran, iran rassoul dinarvand nanotechnology research centre, faculty of pharmacy, tehran university of medical sciences, tehran, iran

introduction: carbon nanotubes (cnts) have shown enormous potential in neuroscience. nerve growth factor (ngf)-cnts complex promotes the neuronal growth, however, the underlying mechanism(s) have remained elusive. based on the interplay between ngf and the endocannabinoid system, involvement of the neuroprotective endocannabinoid, 2-arachidonoyl glycerol (2-ag), was investigated in the mechanis...

In this work, the first in the world of science, the focus was on the best angle of connection between carbon nanotubes and the most widely used group of antibiotics. While having the highest stability, in terms of energy, we have the best angle of to connect to the in vivo delivery of intraoperative antibiotic binding with carbon nanotubes not lost. It will never work in the world of science. ...

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
m. oftadeh m. rezaeisadat a. rashidi

the physical adsorption of hydrogen sulfide and carbon dioxide gases on the zigzag (5,0) carbon nanotubes doped with nitrogen was investigated through the application of b3lyp/6-31g* at the level of theory on gaussian 03 software. a variety of stable and high abundance structures of nitrogen doped carbon nanotubes were considered in order to study the interaction between the mentioned gases in ...

[if gte mso 9]> In the present work, the thermal conductivity coefficients of nanoparticle-oil suspensions for two types of carbon nanotubes, single-walled (SWNTs) and multi-walled (MWNTs) carbon nanotubes at 0.1, 0.2 and 0.3 wt.% were measured by a modified transient hot wire method (KD2-pro thermal property meter). Results showed that the thermal conductivity of suspension containing single-...

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