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Tag: "nanoparticles" at biology news

Soft-cell approach cuts animal tests

...ers. Increasingly, new formulations are using tiny nanoparticles and ultrafine particulates in cosmetics, pharmaceu...entally, especially if they get airborne. Most nanoparticles have a high surface area-to-mass ratio that can make the particles very reactive or catalytic. Being...

Penn researchers show how nanocylinders deliver medicine better than nanospheres

...tream is constantly pumping, and these cylindrical nanoparticles align with the flow and persist in circulation con...s study, the research team used skinny cylindrical nanoparticles composed of synthetic polymers to deliver the anticancer drug paclitaxel to a human lung tumor tissu...

Intelligent materials to regenerate bone tissue

...hing touches to the intelligent material, based on nanoparticles and of a biodegradable nature. Also to be developed is the cell culture in three dimensions, as well as ensuring the biocompatibility of the material....

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...n animals cells because they don’t have walls. The nanoparticles can enter animal cells through a process called en...ow the particles," Torney said. It worked. The nanoparticles were swallowed by the plant protoplasts, which are a type of spherical plant cells without cell wall...

Better insight into brain anatomical structures

...ped a new MRI contrast agent using manganese oxide nanoparticles that produces images of the anatomic structures of...ance images after injection of the manganese oxide nanoparticles gave a view into different areas of the mouse brains—in excellent resolution. "We have developed the...

Researchers develop buckyballs to fight allergy

...re experiments. Buckyballs, or fullerenes, are nanoparticles containing 60 carbon atoms. Due to their unique structure, inertness and stability, researchers from a number of scientific fields have been investigating the tiny, hollow carbon cages to serve a variety of functions. In this study, researchers modif...

UCF nanoparticle offers promise for treating glaucoma

...s penetrate into the eye, earlier experiments with nanoparticles have shown not only high penetration rates but als...tle patient discomfort. The miniscule size of the nanoparticles makes them less abrasive than some of the complex polymers now used in most eye drops. Seal and ...

In nature, proteins sweep up nanoparticles

...n which bacteria emit proteins that sweep up metal nanoparticles into immobile clumps. Their finding may lead to in...e microbes that produce them, and then amass metal nanoparticles into piles that are too large to be swept away by underground currents. Precisely how and why the ba...

Bacteria ferry nanoparticles into cells for early diagnosis, treatment

...Nanotechnology Center. The researchers attached nanoparticles to the outside of bacteria and linked DNA to the n...he cells in the organs receiving the bacteria with nanoparticles made the intended therapeutic proteins and emitted a light similar to a firefly's glow," Akin said. ...

Microbes at work cleaning up the environment

... that to protect themselves from potentially toxic nanoparticles in their own environments, and clean up crews of t...n abandoned mine excrete proteins that cause metal nanoparticles to aggregate. The bacteria are binding and immobilizing the metals in the nanoparticles and the nano...

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