نتایج جستجو برای: fullerene graph
تعداد نتایج: 202582 فیلتر نتایج به سال:
The ability to correlate fullerene solubility with experimentally or computationally accessible parameters can significantly facilitate nanotechnology nowadays for a wide range of applications, while providing crucial insight into optimum design of future fullerene species. To date, there has been no single relationship that satisfactorily describes the existing data clearly manifesting the eff...
Recent toxicology studies suggest that nanosized aggregates of fullerene molecules can enter cells and alter their functions, and also cross the blood-brain barrier. However, the mechanisms by which fullerenes penetrate and disrupt cell membranes are still poorly understood. Here we use computer simulations to explore the translocation of fullerene clusters through a model lipid membrane and th...
Fullerenes are among the strongest antioxidants and are characterized as "radical sponges." The research on biomedicinal applications of fullerenes has achieved significant progress since the landmark publication by Friedman et al in 1993. Fullerene-biomolecule conjugates have become an important area of research during the past 2 decades. By a thorough literature search, we attempt to update t...
A novel fullerene-porphyrin-fullerene triad linked by the axial coordination of tin(IV) porphyrin is reported, exhibiting strong pi-pi interactions between the tin porphyrin and fullerene moieties owing to their close proximity.
A series of six fullerene-linker-fullerene triads have been prepared by the stepwise addition of the fullerene cages to bridging moieties thus allowing the systematic variation of fullerene cage (C60 or C70) and linker (oxalate, acetate or terephthalate) and enabling precise control over the inter-fullerene separation. The fullerene triads exhibit good solubility in common organic solvents, hav...
In the search for simple rationalisations of fullerene reactivity, several concepts taken from graph theory have proved useful. One is the independence number, which gives a mathematical embodiment to the chemical notion of steric strain. The independence number, I(G), of a graph G is the maximum number of its vertices that can be marked simultaneously such that no two marked vertices are adjac...
Experimental and theoretical studies on fullerene cages are the topic of several investigations in recent years [ 1-l 11. Since the chemistry of fullerenes is increasingly becoming important and theoretical studies of these cages are on the increase it is necessary to have several mathematical procedures for the study of topological properties of these cages. Topological, graph theoretical and ...
A Fullerene with pentagons, hexagons, and heptagons is considered. The number of carbons is 458. It contains 8 heptagonal rings, 21 pentagons, and 212 hexagons. Keywords-component; fullerene; heptagon; pentagon adjacency penalty rule; fullerene with many carbons
Aerosol synthesis methods for the production of nanostructured fullerene particles have been developed. The nanostructured, ultrafine fullerene particles were produced by vapor condensation and aerosol droplet drying and crystallization methods in tubular laminar flow reactors. The formation mechanisms were studied by measuring particle-size distributions is the gas phase. High-resolution scann...
Solubilization and encapsulation of fullerenes C60 and C70 by ultralarge hollow micelles formed by rod-coil diblock copolymers and characterization of the resulting self-organized fullerene-block copolymer assemblies are reported. The solubilization capacity of each fullerene in poly(phenylquinoline)-blockpolystyrene (PPQ-PS) micelles in binary solvents, trifluoroacetic acid/dichloromethane, an...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید