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(Phys.org) — Sometimes to answer big questions, you need to start small-very small. Scientists from Pacific Northwest National Laboratory’s Chemical Imaging Initiative did just that when they analyzed cadmium selenide, or CdSe, quantum dots. Quantum dots are nanometer-sized particles that have different optical and electronic properties than their bulk materials…
European scientists studied electron flow in systems of organic photosensitive dyes and titanium-based materials. Results are particularly relevant to increasing the efficiency of a cost-effective class of solar cells and have potential broad application to nanotechnology and clean energy science.
Under the influence of magnetic drugs
– phys.org
(Phys.org) — For more than three decades scientists have been investigating magnetic nanoparticles as a method of drug delivery. Now by combining three metals – iron, gold and platinum – pharmacists at the University of Sydney believe they have discovered a method for magnetically directing drugs through the body.
(Phys.org) — Similar to how tighter stiches make for a better quality quilt, the “stitching” between individual crystals of graphene affects how well these carbon monolayers conduct electricity and retain their strength, Cornell researchers report.
Graphene has caused a lot of excitement among scientists since the extremely strong and thin carbon material was discovered in 2004. Just one atom thick, the honeycomb-shaped material has several remarkable properties combining mechanical toughness with superior electrical and thermal conductivity.
UCLA biochemists have designed specialized proteins that assemble themselves to form tiny molecular cages hundreds of times smaller than a single cell. The creation of these miniature structures may be the first step toward developing new methods of drug delivery or even designing artificial vaccines.
A research group headed by MANA Scientist Dr. Qingmin Ji of the National Institute for Materials Science (Japan), in joint study with Prof. Frank Caruso of the University of Melbourne, developed a new elastic capsule using an inorganic nanometer-thickness flake-shaped material (nanosheets). Tests of the new capsule demonstrated that the release duration of anticancer drugs and other drugs can be controlled freely and can also be extended by several times by using the newly-developed capsule.