نتایج جستجو برای: functionalization

تعداد نتایج: 9962  

Journal: :iranian journal of pediatric hematology and oncology 0
h zare-zardini department of biotechnology, faculty of advanced sciences and technologies, university of isfahan, isfahan, iran 3. hemسازمان های دیگر: hematology and oncology research center, shahid sadoughi university of medical sciences and health services, yazd, iran a taheri-kafrani department of biotechnology, faculty of advanced sciences and technologies, university of isfahan, isfahan, iran a amiri department of mechanical engineering, faculty of engineering, university of malaya, kuala lumpur, malaysia m shanbedi department of chemical engineering, faculty of engineering, ferdowsi university of mashhad, mashhad, iran z sadri hematology and oncology research center, shahid sadoughi university of medical sciences and health services, yazd, iran

despite development of new approaches for the treatment of cancer disease, it is the second cause of mortality in world. annually, 30000 persons die in iran due to cancer diseases. eighty percent of cancer patients are children which about 50% children lead to death. given the high rate of cancer-related death, the new approaches for prevention, control, early diagnosis, and treatment of this d...

Journal: :physical chemistry research 0
samira peymani ferdowsi university of mashhad mohammad izadyar ferdowsi university of mashhad ali nakhaeipour ferdowsi university of mashhad

in this study, kinetics and mechanism of the sulfur dioxide adsorption on the single-walled carbon nanotubes (cnt) are investigated. three single-walled carbon nanotubes, including the armchair (6,6), chiral (6,5) and zigzag (6,0) cnts were chosen as the models and the different orientations of so2 molecule relative to the cnt axis were considered. the b3lyp functional within the 6-31g(d) basis...

Journal: :biomacromolecular journal 0
sharareh sajjadi roudehen branch, islamic azad university, roudehen, iran hedayatollah ghourchian university of tehran, ibb parvaneh rahimi university of tehran

choline oxidase (chox) was chosen as a model enzyme for evaluating the performance of cnts’ functional groups for development of enzyme electrodes. cnts were functionalized with carboxylic acid, amine or amide groups. carboxylic acid, amine and amide functionalized cnts were obtained by acid treatment, ethylenediamine or tetraethylenepentamine chemically modification and ammonia plasma treatmen...

Journal: :international journal of nanoscience and nanotechnology(ijnn 0
a. ghozatloo faculty member of research institute of petroleum industry (ripi), west blvd. azadi sport complex, p.o. box: 14665-137, tehran, iran m. shariaty niassar transport phenomena & nanotech. lab (tpnt), school of engineering, university of tehran, p.o. box: 11155-4563, tehran, iran a. rashidi faculty member of research institute of petroleum industry (ripi), west blvd. azadi sport complex, p.o. box: 14665-137, tehran, iran

in this research, graphene was synthesized by chemical vapor deposition (cvd) method in atmosphere pressure (14.7 psi). different functionalization method was used for oxidizing of graphene such as acid and alkaline treatments. the functionalized graphene (fg) was characterized by ftir and raman spectroscopy. nanofluid with water and different concentration (0.05, 0.15 and 0.25 wt %) of fg were...

Journal: :international journal of nanoscience and nanotechnology 2012
t. matsuura m. a. aroon a. f. ismail

in this paper, synthesized (raw) multi-walled carbon nanotube (rmwcnts) surfaces were modified with chitosan and β-cyclodextrin using chen’s soft cutting technique. raw and surface modified multi-walled carbon nanotubes were observed by transmission electron microscope (tem). the results showed that chitosan and β-cyclodextrin could attach to the outer surface of nanotubes, wrapping the nanotub...

Journal: :international journal of advanced biological and biomedical research 2014
elnaz nassaghi javad azizian sajjad sedaghat

in this paper, the chemical functionalization of carboxylate multi-walled carbon nanotubes by methyl (triphenyl phosphoranylidene) acetate have been investigated. phosphorus ylides are important compound in organic chemistry. at first, methyl (triphenyl phosphoranylidene) acetate, synthesized from salt metod in two steps: the formation of the phosphonium salt and the deprotonation of the latter...

Journal: :international journal of nanoscience and nanotechnology 2015
f. pourfayaz s. iranpour o. shojaei

toluene and benzene were eliminated using multi-walled carbon nanotubes (mwcnts). in order to investigate influence of acid treatment on the mwcnts adsorption capacities, the mwcnts were functionalized by nitric acid (10 m) under reflux conditions for 2 h. fourier transform infrared (ftir) and raman spectroscopy were employed to confirm the formation of functional groups on the nanotubes surfac...

2017
Huw M. L. Davies Daniel Morton

C-H functionalization is a very active research field that has attracted the interest of scientists from many disciplines. This Outlook describes the collaborative efforts within the NSF CCI Center for Selective C-H Functionalization (CCHF) to develop catalyst-controlled selective methods to enhance the synthetic potential of C-H functionalization.

2011
Pooja M. Tiwari Komal Vig Vida A. Dennis Shree R. Singh

Metal nanoparticles are being extensively used in various biomedical applications due to their small size to volume ratio and extensive thermal stability. Gold nanoparticles (GNPs) are an obvious choice due to their amenability of synthesis and functionalization, less toxicity and ease of detection. The present review focuses on various methods of functionalization of GNPs and their application...

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