Tag Archives: Nanoparticles

Nanoparticles can lead to better drugs

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This discovery would surely help in churning out better drugs for treatment of diseases. U.S researchers have found out that string like nanoparticles equal to viruses which move in the blood for up to ten times longer as compared to spherical nanoparticles, the shape could help in creating better drug delivery vehicles for cancer treatment. This may turn out to be really beneficial for researchers involved in creating cancer drugs. Soft filamentous polymers have been found to circulate for more than a week in the case of rats but this is a fairly long time as compared to spherical nanoparticles which get cleared from the body within hours. The circulation time has been found out to depend upon how the filaments fragment as a result of liquid flow and interaction with the cells and therefore this research has found a place in the Nature Nanotechnology journal issue of April. Via scienceahead

Identification of bacteria possible with fluorescent nanoparticles

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Tiny fluorescent particles have been developed by University of Florida scientists which can be used for quick identification of bacteria by color coding them. It can certainly help in testing contaminants in food and prevention of bio terror attacks. The team at the university created nanoparticles with three colors – purple for Samonella typhimurium, blue for Escherichia coli and orange for Stapphylococcus aureus. As antibodies consist of proteins which stick to just one thing here nanoparticles containing antibodies cling onto a single type of bacteria. When these nanoparticles are put along with three different types of bacteria they are color coded by these nanoparticles so that it could be easy to identify them with the aid of a confocal microscope. These findings have already been published in Bioconjugate Chemistry. Image Via wired

U.S. researchers develop novel nanoparticles for effective drugs transportation

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These unique nanoparticles would surely do good to the world of medicine. Researchers from U.S. have developed novel nanoparticles which can be used for sending medicines deep inside the lungs and penetrate cancer cells without affecting the normal cells. The technique has been developed by Princeton University researchers and these nanoparticles are thousand times thinner than a strand of human hair and can be loaded with imaging enhancing agents or medicines. The technique is called Flash NanoPrecipitation and it enables researchers to mix drugs and materials to be transported with nanoparticles. Though they are large enough to pass through cell membranes but can surely move through defects in the capillaries of solid tumors. The combination of materials science and chemistry has enabled something concrete which was not possible earlier. The researchers stated that earlier there was no good route for incorporating drugs and imaging agents in nanoparticles but this work will surely go a long way in benefiting the world of medicine. Via sciencedaily