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Tag: "coatings" at biology news

Polymers with copper show promise for implanted sensors

...nary results with a new strategy: creating polymer coatings that generate nitric oxide from components already in the blood. U-M chemistry professor Mark Meyerhoff will discuss the work March 15 at the 229th national meeting of the American Chemical Society in San Diego, Calif. "The idea we had, when we star...

Aloe vera coating may prolong freshness, safety of fruits and vegetables

... the researchers say. Although a number of edible coatings have been developed to preserve food freshness, the new coating is believed to be the first to use Aloe vera , according to study leader Daniel Valero, Ph.D., of the University of Miguel Hern�ndez in Alicante, Spain. His study will appear in the Oct...

Shampoo detergent added to paint makes surfaces self-sterilizing

...to paints and varnishes can create self-sanitizing coatings for frequently touched surfaces in public buildings that continue killing germs for months, according to research conducted by a multi-state consortium of high school students and retirees. Working through the website science-projects.com, 10 studen...

How HIV disables the cells' call for help

...n the initial stages of HIV infection, the protein coatings of the viruses fuse with the outer membranes of T cells ?immune system cells that recognize foreign invaders and alert other types of immune cell to come to the rescue. The genetic material of the virus, which is basically a strand of RNA, then force...

'Nanospheres' that block pain of sensitive teeth

...is widely used by medics for bone grafts or dental coatings (because it binds strongly with the bone material). Earl and his colleagues grew hydroxyapatite at various pH levels to vary the size of the particles it is made up of. At normal pH, it is composed of long rod-like structures but at high pH levels t...

Bare metal stents deliver gene therapy to heart vessels with less inflammation in animal studies

...rowing process, called restenosis, but the polymer coatings that initially hold the drugs to the stents may stimulate inflammation. The inflammation in turn leads to restenosis. Researchers at The Children's Hospital of Philadelphia have developed a novel technique to attach therapeutic genes to a stent's ba...

Antibacterial coatings cut infection rates

Putting antibacterial coatings on hip and knee implants and biomedical devices su...hers at The Wark TM are developing nanometre thin coatings for biomedical implants and biomedical devices that prevent bacterial colonisation of implants that ...

A bathroom that cleans itself

... bathrooms may become a thing of the past with new coatings that will do the job for you. Researchers at the University of New South Wales are developing new coatings they hope will be used for self-cleaning surfaces in hospitals and the home. Led by Professor Ros...

Triple threat polymer captures and releases

...d more than four years ago as marine "antifouling" coatings that inhibit marine organisms such as barnacles from attaching to the hull of ships to now capture fragrance molecules and release them at room temperature. Wooley mixes two normally incompatible polymers -- a hyperbranched fluoropolymer and a line...

Nanotechnology being used to improve biocompatibility of human prosthetics and implants

...of implants and prosthetics calcium phosphate (CP) coatings on titanium alloy implants are proving their worth...P are hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 , HA) coatings used to promote rapid bone remodelling on the titanium alloy implants. It is well known that the mic...

Scientists find new way to manipulate DNA

...eating structures, are used in everything from the coatings on walls of ships and pipes to reduce flow drag to gene therapy. But long polymer chains are subject to breakage, called scission, and a new study by the University of Michigan shows that as it turns out, much of what scientists previously thoug...

Edible coatings will be the packaging of the future

...ersity of Navarre. In the research, various edible coatings were analysed ?all based on proteins extracted fro...risation and applications for foodstuffs of edible coatings based on milk serum proteins, starch and mesquite gum". Mesquite gum, an efficacious and cheap so...

DNA layer reduces risk of reserve parts being rejected

... good research results led to the patenting of DNA coatings for implants. A biomedical company is currently investigating whether they can take over the patent. Layer-by-Layer deposition technique. With this technique, ultra-thin DNA layers can be built up and immobilized. The first layer attaches to the ...

The longest carbon nanotubes you've ever seen

...or deposition (CVD), a technique for creating thin coatings that is especially common in the semiconductor industry, with a novel substrate and catalyst onto which the carbon attaches. Supported by the National Science Foundation (NSF) and the Office of Naval Research, University of Cincinnati (UC) profess...

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