نتایج جستجو برای: d24 c60 واژگان کلیدی
تعداد نتایج: 53080 فیلتر نتایج به سال:
Photoinduced charge separation of fullerodendrimers with carboxylates at terminal sites (C60 approximately COO-) has been found in aqueous media. Time-resolved transient absorption and fluorescence measurements of the fullerodendrimers demonstrated that charge separation takes place from the terminal carboxylate anion to the central excited singlet state of C60, generating C60*- approximately C...
Recently, it has been demonstrated that oxygen free radicals have an important role as a signaling messenger in the development of inflammation and osteoclastogenesis, suggesting the implication of oxygen free radicals in the pathogenesis of arthritis. The aim of this study was to examine the potential of a strong free-radical scavenger, water-soluble fullerene (C60), as a protective agent agai...
A “stage-1” intercalated film has been made by the ion exchange of pyrrolidinium-functionalized C60 (C60(Py)n+) into centimeter-wide, micrometer-thick air-dried graphene oxide (G-O) films composed tens thousands layers stacked/overlapping G-O platelets, denoted [C60(Py)n+]G-O films. Spontaneous intercalation one layer C60(Py)n+ between adjacent expands interlayer spacing from 0.74 nm to 1.46 nm...
Given the unique structural and electronic properties of C60 , metal-organic frameworks (MOFs) containing C60 linkers are expected to exhibit interesting characteristics. A new hexakisfullerene derivative possessing two pairs of phenyl pyridine groups attached to two methano-carbon atoms located at the trans-1 positions was designed and synthesized. The four pyridyl nitrogen atoms define a perf...
هدف این مقاله ارائه مدل مناسب مبتنی بر تحلیل پوششی دادهها با ساختار شبکهای برای ارزیابی کارایی زنجیره تامین پایدار شرکتهای سیمان حاضر در بورس ایران طی دوره زمانی 1393-95 و تعیین میزان بهره وری آنها بر اساس شاخص مالمکوئیست میباشد. این مدل میکوشد با در نظر گرفتن محدودیتهای کمّی و کیفی و نیز خروجیهای نامطلوب، معیارهای پایداری در شبکه تامین معرفی نماید و از طریق سنجه آنها بر زنجیره تامین، ...
Perovskite semiconductors are an attractive option to overcome the limitations of established silicon based photovoltaic (PV) technologies due their exceptional opto-electronic properties and successful integration into multijunction cells. However, performance single- cells is largely limited by significant nonradiative recombination at perovskite/organic electron transport layer junctions. In...
New representative of carbacylamidophosphates - diphenyl-N-(trichloroacetyl)-amidophosphate (HL), which contains two phenoxy substituents near the phosphoryl group, was synthesized, identified by elemental analysis and IR and NMR spectroscopy, and tested as a cytotoxic agent itself and in combination with C60 fullerene.According to molecular simulation results, C60 fullerene and HL could intera...
This paper presents an econometric mediation analysis. It considers identification of production functions and the sources of output effects (treatment effects) from experimental interventions when some inputs are mismeasured and others are entirely omitted. JEL Code: D24, C21, C43, C38.
طول پیوندهای یگانه و دوگانه تعادلی بلور fcc-c60 در غیاب و حضور آلاییدگی درون وجهی اتم کربن، fcc-c@c60، با استفاده از محاسبات خودسازگار بر پایه نظریه تابعی چگالی و پتانسیل کامل توابع موج تخت بهبود یافته به علاوه اوربیتال های موضعی پس از واهلش اتم ها محاسبه شده اند. نتایج نشان می دهند که طول پیوندهای یگانه و دوگانه در بلور آلاییده نسبت به بلور خالص کاهش می یابند. کاهش در طول پیوند پس از آلایش ناخ...
Immunotoxicity studies of nanoparticles on T cells addressed their effects on activation by T antigen receptor, but have neglected the regulation of proliferation by IL-2. In this study, the IL-2-dependent T lymphoblastoid WE17/10 cell line was used to compare silver (Ag-NPs) and fullerene (C60-NPs) nanoparticles' toxicity and evaluate whether these NPs could interfere with IL-2-dependent proli...
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