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Ions Control Shape of Nanofibers Grown on Clear Substrate

By Guest PostAugust 20, 2011Scienceacetylene, acetylene gas, ammonia gas, anatoli melechko, atoms, biomedical research tools, c2h2, carbon nanofibers, catalytic action, cfd research corporation, chromium grid, dale hensley, electrode, fused silicon, gene delivery tools, gene therapy, graphite, graphitic carbon nanofibers, hexagonal structure, ions, nanofiber coatings, nanofibers, nickel nanoparticles, north carolina state university, oak ridge national laboratory, positively charged atoms, pure silicon dioxide, ryan pearce, solar cells, transparent substrate, water repellent coatings

Researchers from North Carolina State University, the Oak Ridge National Laboratory and CFD Research Corporation have found a new way to develop straight carbon nanofibers on a transparent substrate. Growing such nanofiber coatings is important for use in novel biomedical research tools, solar cells, water repellent coatings and others. The technique utilizes a charged chromium grid, and relies on ions to ensure the nanofibers are straight, rather than curling – which limits their utility.

“This is the first time, that I know of, where someone has been able to grow straight carbon nanofibers on a clear substrate,” says Dr. Anatoli Melechko, an associate professor of materials science and engineering at NC State and co-author of a paper describing the research. “Such nanofibers can be used as gene-delivery tools. And a transparent substrate allows researchers to see how the nanofibers interact with cells, and to manipulate this interaction.” (more…)

Study Finds More Efficient Means Of Creating, Arranging Carbon Nanofibers

Carbon nanofibers hold promise for technologies ranging from medical imaging devices to precise scientific measurement tools, but the time and expense associated with uniformly creating nanofibers of the correct size has been an obstacle – until now. A new study from North Carolina State University demonstrates an improved method for creating carbon nanofibers of specific sizes, as well as explaining the science behind the method.

“Carbon nanofibers have a host of potential applications, but their utility is affected by their diameter – and controlling the diameter of nanofibers has historically been costly and time-consuming,” says Dr. Anatoli Melechko, an associate professor of materials science and engineering at NC State and co-author of a paper describing the study. (more…)

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Ions Control Shape of Nanofibers Grown on Clear Substrate

Study Finds More Efficient Means Of Creating, Arranging Carbon Nanofibers