نتایج جستجو برای: پلیمر خطی فولرن c60

تعداد نتایج: 38908  

2016
Muhammad Junaid Eman Abdullah Almuqri Junjun Liu Houjin Zhang Freddie Salsbury

Fullerene C60, a unique sphere-shaped molecule consisting of carbon, has been proved to have inhibitory effects on many diseases. However, the applications of C60 in medicine have been severely hindered by its complete insolubility in water and low solubility in almost all organic solvents. In this study, the water-soluble C60 derivatives and the C60 binding protein's structures were collected ...

ژورنال: :پژوهش نفت 0
احمد قضاتلو پژوهشگاه صنعت نفت مجتبی شریعتی نیاسر عضو هیت علمی دانشکده مهندسی شیمی دانشگاه تهران محسن حسینی آزمایشگاه پدیده های انتقال و فناوری نانو، دانشکده مهندسی شیمی، پردیس دانشکده های فنی دانشگاه تهران، تهران،

در این مقاله نانوساختار فولرن توسط فرآیند کراشمر- هافمن با مکانیسم قوس الکتریکی در محیط آزمایشگاهی سنتز شد. به منظور استفاده در فرآیند تشکیل هیدرات گازی و بررسی تاثیر آن بر راندمان فرآیند و حجم ذخیره سازی، ابتدا نانوسیال با غلظت 1% وزنی تهیه شد. از آنجائی که فولرن در آب پایدار نیست، از سورفکتانت sds استفاده گردید و مشاهده شد نانوسیال مربوطه دارای پایداری خوبی است. در فرآیند تشکیل هیدرات از گاز ...

1999
Antonis N. Andriotis Madhu Menon

Small Nim(C60)n clusters with n1m<4 are studied using the tight-binding molecular-dynamics method generalized to treat heteronuclear systems. Our results confirm recent experimental deduction of the bonding behavior of Ni towards C60 . The direction of the charge transfer is found to depend on the geometry of the Nim(C60)n cluster. Furthermore, the present results reveal a striking dissimilarit...

Journal: :Journal of Nanobiotechnology 2006
Nicole Levi Roy R Hantgan Mark O Lively David L Carroll Gaddamanugu L Prasad

We have developed a new method of application of C60 to cultured cells that does not require water-solubilization techniques. Normal and malignant cells take-up C60 and the inherent photoluminescence of C60 is detected within multiple cell lines. Treatment of cells with up to 200 microg/ml (200 ppm) of C60 does not alter morphology, cytoskeletal organization, cell cycle dynamics nor does it inh...

2012
Richa Pandey Aloysius A. Gunawan K. Andre Mkhoyan Russell J. Holmes

The electrical and structural behavior of uniformly mixed films of boron subphthalocyanine chloride (SubPc) and C60 and their performance in organic photovoltaic cells is explored. Device performance shows a strong dependence on active-layer donor–acceptor composition, and peak efficiency is realized at 80 wt.% C60. The origin of this C60-rich optimum composition is elucidated in terms of morph...

Journal: :Physical chemistry chemical physics : PCCP 2015
Pradyumna Mulpur Ramakrishna Podila Sai Sathish Ramamurthy Venkataramaniah Kamisetti Apparao M Rao

In this study, we present the use of C60 as an active spacer material on a silver (Ag) based surface plasmon coupled emission (SPCE) platform. In addition to its primary role of protecting the Ag thin film from oxidation, the incorporation of C60 facilitated the achievement of a 30-fold enhancement in the emission intensity of rhodamine B (RhB) fluorophore. The high signal yield was attributed ...

Journal: :The Journal of chemical physics 2005
Xue-Bin Wang Hin-Koon Woo Lai-Sheng Wang

We demonstrate vibrational cooling of anions via collisions with a background gas in an ion trap attached to a cryogenically controlled cold head (10-400 K). Photoelectron spectra of vibrationally cold C60(-) anions, produced by electrospray ionization and cooled in the cold ion trap, have been obtained. Relative to spectra taken at room temperature, vibrational hot bands are completely elimina...

Journal: :Physical review letters 2010
Woei Wu Pai H T Jeng C-M Cheng C-H Lin Xudong Xiao Aidi Zhao Xieqiu Zhang Geng Xu X Q Shi M A Van Hove C-S Hsue K-D Tsuei

We demonstrate the charge state of C60 on a Cu(111) surface can be made optimal, i.e., forming C60(3-) as required for superconductivity in bulk alkali-doped C60, purely through interface reconstruction rather than with foreign dopants. We link the origin of the C60(3-) charge state to a reconstructed interface with ordered (4x4) 7-atom vacancy holes in the surface. In contrast, C60 adsorbed on...

Journal: :The journal of physical chemistry letters 2011
Dingshan Yu Kyusoon Park Michael Durstock Liming Dai

A simple lithiation reaction was developed to covalently attach monosubstituted C60 onto graphene nanosheets. Detailed spectroscopic (e.g., Fourier transform infrared, Raman) analyses indicated that C60 molecules were covalently attached onto the graphene surface through monosubstitution. Transmission electron microscopic (TEM) observation revealed that these monosubstituted C60 moieties acted ...

Journal: :Chemistry, an Asian journal 2013
Fu-Ai Teng Yan Cao Yuan-Jiang Qi Mingjun Huang Zhe-Wen Han Stephen Z D Cheng Wen-Bin Zhang Hui Li

A series of sphere-rod shape amphiphiles, in which a [60]fullerene (C60) sphere was connected to the center of an oligofluorene (OF) rod through a rigid linkage (OF-C60), were designed and synthesized. Alkyl chains of various lengths were attached onto the OFs on both sides of the C60 spheres. These compounds, denoted as alkyl-OF-C60, were fully characterized by (1)H NMR, (13)C NMR, and FTIR sp...

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