نتایج جستجو برای: molecule

تعداد نتایج: 133842  

Objective(s): First-principles calculations have been carried out to investigate the interaction of aspirin molecule with nitrogen-doped TiO2 anatase nanoparticles using the density functional theory method in order to fully exploit the biosensing capabilities of TiO2 particles. Methods: For this purpose, we have mainly studied the a...

H Khouzestani, S A Ketabi,

A numerical study is presented to investigate the electronic transport properties through a synthetic DNA molecule based on a quasiperiodic arrangement of its constituent nucleotides. Using a generalized Green's function technique, the electronic conduction through the poly(GACT)-poly(CTGA) DNA molecule in a metal/DNA/metal model structure has been studied. Making use of a renormalization schem...

Journal: :iranian journal of allergy, asthma and immunology 0
giorgio ciprandi allergy department, istituto di ricovero e cura a carattere scientifico – azienda ospedaliera-universitaria (irccs-aou), san martino, genoa, italy paola comite department of laboratory medicine, irccs-aou san martino, genoa, italy francesca ferrero department of laboratory medicine, irccs-aou san martino, genoa, italy michele mussap department of laboratory medicine, irccs-aou san martino, genoa, italy

serum ige assay is a mainstay step in the allergy work up. allergenic extracts and molecular components are available at present. this real life study compared the serum specific ige levels against allergenic extracts with allergenic molecules in patients allergic to parietaria, betulaceae , and mites. this retrospective real life study included 489 subjects with respiratory allergy. inclusion ...

Deuterium labelling is used to show that the disproportionation of thioxanthylium salts involve transfer of a hydride, (deuteride) ion from the9-positionof one molecule of the compound, as its hydro], to the 9 - position of another molecule in the cation form

Journal: :iranian biomedical journal 0
اصغر قاسمی asghar ghasemi صالح زاهدی اصل saleh zahediasl

nitric oxide (no) is a simple ubiquitous signaling molecule and plays important roles in almost every biological system. recent evidences suggest that no may act as an endocrine molecule. the aim of this review is considering available literature on endocrine roles of no and/or its metabolites, i.e. nitrite and nitrate. existing data suggest the idea that no is a hormone that after production i...

Journal: :journal of sciences islamic republic of iran 0

graft copolymers of acrylamide on carboxymethyl cellulose (d.s 0.4-0.5) were prepared by the use of ceric ion, ceric ion/reductant molecule initiator systems in aqueous medium. the graft copolymers were characterized by ir spectroscopy. the extent of graft copolymerisation was measured in terms of grafted chains as a function of both ceric ion and ceric ion/reductant molecule concentrations. it...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1998
sadreddin hosseini timoty su

classical trajectory (monte carlo) calculation is used to calculate collision rate constants of ion-quadrupolar molecule interactions for the h¯+c2h2 system. the method presented here takes into account the effect of the induced dipole-induced dipole potential on ion-quadrupolar molecule collision rate constants. it is also assumed that the colliding particles have a definite size. the thermal ...

Journal: :iranian journal of radiation research 0
b. chen faculty of medicine and health sciences, macquarie university, new south wales, australia z. zhao faculty of medicine and health sciences, macquarie university, new south wales, australia v. lee faculty of medicine and health sciences, macquarie university, new south wales, australia r. reddy faculty of medicine and health sciences, macquarie university, new south wales, australia m. stoodley faculty of medicine and health sciences, macquarie university, new south wales, australia

background: radiation-induced molecular changes on the endothelial surface of brain arteriovenous malformations (avm) may be used as markers for specific vascular targeting agents. in this study, we examined the level of expression of platelet endothelial cell adhesion molecule-1 (pecam-1) on brain endothelial cell surface after radiation treatment, with the aim of targeting the radiation-induc...

Journal: :nanomedicine research journal 0
amirali abbasi molecular simulation laboratory (msl), azarbaijan shahid madani university, tabriz, iran jaber jahanbin sardroodi molecular simulation laboratory (msl), azarbaijan shahid madani university, tabriz, iran

objective(s): first-principles calculations have been carried out to investigate the interaction of aspirin molecule with nitrogen-doped tio2 anatase nanoparticles using the density functional theory method in order to fully exploit the biosensing capabilities of tio2 particles. methods: for this purpose, we have mainly studied the adsorption of the aspirin molecule on the fivefold coordinated ...

Journal: :physical chemistry research 0
ali shokuhi rad islamic azad uniersity of qaemshahr

in the present study we search potential of pt-decorated graphene (ptg) as a new nanostructure adsorbent for nitrous oxide (n2o) using density functional theory (dft). after fully relaxation of different possible orientations of n2o-ptg complex, we distinguished two optimized configurations for this system; 1- terminal n-side of gas is oriented towards pt so that the molecule axis is perpendicu...

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