463 research outputs found
Laparoscopy in Trauma Patients
The burden of major trauma, predominantly blunt in nature, continues to rise in most countries. More often the young are affected with lifelong debilitating consequences. Minimally invasive techniques, such as laparoscopic procedures, have become standard for the treatment of many surgical conditions, being able to minimize the impact of surgery, to reduce postoperative pain, time in hospital, time to recover, and to improve cosmetic outcomes
Preparation of small silicon carbide quantum dots by wet chemical etching
Fabrication of nanosized silicon carbide (SiC) crystals is a crucial step in many biomedical
applications. Here we report an effective fabrication method of SiC nanocrystals based on
simple electroless wet chemical etching of crystalline cubic SiC. Comparing an open reaction
system with a closed reaction chamber, we found that the latter produces smaller nanoparticles
(less than 8 nm diameter) with higher yield. Our samples show strong violet-blue emission in the
410â450 nm region depending on the solvents used and the size. Infrared measurements unraveled
that the surface of the fabricated nanoparticles is rich in oxidized carbon. This may open an
opportunity to use standard chemistry methods for further biological functionalization of such
nanoparticles
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