نتایج جستجو برای: c20 fullerenes

تعداد نتایج: 5000  

Journal: :Nano letters 2012
Nichole Cates Miller Sean Sweetnam Eric T Hoke Roman Gysel Chad E Miller Jonathan A Bartelt Xinxin Xie Michael F Toney Michael D McGehee

We compare the solar cell performance of several polymers with the conventional electron acceptor phenyl-C61-butyric acid methyl ester (PCBM) to fullerenes with one to three indene adducts. We find that the multiadduct fullerenes with lower electron affinity improve the efficiency of the solar cells only when they do not intercalate between the polymer side chains. When they intercalate between...

2006
Věra HAMPLOVÁ

Fullerenes have been so far identified in a few rock types with unique geological history. One group of these finds is related to impacts of extraterrestrial bodies on Earth surface, strictly speaking the impact structure of Sudbury (Becker et al., 1994) and to events recorded from Permian/Triassic (Becker et al., 2001) and Cretaceous/Tertiary boundaries (Heymann et al., 1994). Generally two ba...

Journal: :Experimental oncology 2004
Anatolij P Burlaka Yevgeniy P Sidorik Svitlana V Prylutska Olga P Matyshevska Olexandr A Golub Yurij I Prylutskyy Peter Scharff

AIM To study the ability of fullerenes C(60) to catalyse the reactions of generation of reactive oxygen species (ROS) in water solution after photoexcitation and to affect the vitality of tumor cells in vitro. METHODS The number and vitality of cultured Ehrlich carcinoma cells or rat thymocytes were determined using tripane blue, ROS levels were registered using the methods of electron parama...

2017
Grace Watson

In a world where the scale of technology is continuously shrinking, from phones to cars to solar panels, nanotechnology is seeing a rise in applications. Recently, increased use of nanotechnology in the medical industry brought fullerenes, sometimes referred to as Buckyballs, to the forefront. Fullerenes are currently being developed by engineers to encapsulate a chemotherapeutic drug and deliv...

2001
Jack E. Graver

This paper is devoted to developing the structure of fullerene signatures. These structure results are then used to construct a complete catalog of fullerenes with ten or more symmetries. These fullerenes fall into 112 families. The Coxeter fullerenes, obtained by subdividing the faces of the icosahedron, form the prototype family. Like the Coxeter families, each family in the catalog is a one,...

Journal: :Nanoscale 2012
Thomas W Chamberlain Rudolf Pfeiffer Jonathan Howells Herwig Peterlik Hans Kuzmany Bernhard Kräutler Tatiana Da Ros Manuel Melle-Franco Francesco Zerbetto Dragana Milić Andrei N Khlobystov

A range of mono- and bis-functionalised fullerenes have been synthesised and inserted into single-walled carbon nanotubes. The effect of the size and shape of the functional groups of the fullerenes on the resultant 1D arrays formed within the nanotubes was investigated by high resolution transmission electron microscopy and X-ray diffraction. The addition of non-planar, sterically bulky chains...

2012
Zhiyun Chen Lijing Ma Ying Liu Chunying Chen

Functionalized fullerenes with specific physicochemical properties have been developed for cancer diagnosis and therapy. Notably, metallofullerene is a new class of magnetic resonance imaging (MRI) contrast-enhancing agent, and may have promising applications for clinical diagnosis. Polyhydroxylated and carboxyl fullerenes have been applied to photoacoustic imaging. Moreover, in recent years, f...

Journal: :Molecules 2012
Osamu Ito Francis D'Souza

Photosensitized electron-transfer processes of fullerenes hybridized with electron donating or other electron accepting molecules have been surveyed in this review on the basis of the recent results reported mainly from our laboratories. Fullerenes act as photo-sensitizing electron acceptors with respect to a wide variety of electron donors; in addition, fullerenes in the ground state also act ...

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