University of North Carolina at Chapel Hill chemists have developed what they believe is a breakthrough method of creating the world’s tiniest manufactured particles for delivering drugs and other organic materials into the human body.
Adapting technology pioneered by the electronics industry in fabricating transistors, the team has figured out for the first time how to create particles for carrying genetic material, pharmaceuticals and other compounds of unprecedented small size and uniformity. The tiny bits are so small they can be designed and constructed to measure only a hundred nanometers or so in diameter. A nanometer is a billionth of a meter.
Leading the group is Dr. Joseph M. DeSimone, William R. Kenan Jr. Distinguished professor of chemistry and chemical engineering at UNC and N.C. State University. A member of the UNC College of Arts and Sciences and the National Academy of Engineering, DeSimone also directs the National Science Foundation Science and Technology Center for Environmentally Responsible Solvents and Processes and the Institute for Advanced Materials, Nanoscience and Technology at UNC.
David Williamson | EurekAlert!
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
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In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
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