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Nanotechnology / Bio & Medicine news 1234

Biosensing nanodevice to revolutionize health screenings

March 25, 2008 | User rating: 4.4 / 5 after 8 vote(s) | No comments yet

One day soon a biosensing nanodevice developed by Arizona State University researcher Wayne Frasch may eliminate long lines at airport security checkpoints and revolutionize health screenings for diseases like anthrax, cancer ...


Carbon Nanotubes Help Fix Bones

March 14, 2008 | User rating: 4.6 / 5 after 28 vote(s) | User comments: 1

Healing a broken bone is a lengthy and awkward process. The current, most effective way to repair bone tissue is to ensure correct positioning of the bone during healing, usually by use of a plaster cast or ...


Handheld DNA detector

March 10, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet

A researcher at the National University at San Diego has taken a mathematical approach to a biological problem - how to design a portable DNA detector. Writing in the International Journal of Nanotechnology, he describes ...


Silver Nanoparticles Deadly to Bacteria

March 10, 2008 | User rating: 3.9 / 5 after 23 vote(s) | No comments yet

Hygienic, antibacteria sprays can be harmful to the environment as well as germs. Toxic solvents are necessary to ensure that bacteria is destroyed but now there could be a new way to achieve this without ...


Switchable nanovalves: pH-sensitive pseudorotaxane as reversible gate for drug nanotransporter

March 07, 2008 | User rating: 4.3 / 5 after 7 vote(s) | No comments yet

We encounter valves every day, whether in the water faucet, the carburetor in our car, or our bicycle tire tube. Valves are also present in the world of nanotechnology.


Assembly technique for tiny wires may help detect cancer, other diseases

March 07, 2008 | User rating: 4.3 / 5 after 7 vote(s) | No comments yet

Bottom-up manufacturing may hold the key to production of tiny medical devices capable of testing for multiple molecules like viruses or cancer markers, according to an interdisciplinary team of Penn State researchers.


On a 'roll': Researchers devise new cell-sorting system

March 07, 2008 | User rating: 4.8 / 5 after 9 vote(s) | No comments yet

Capitalizing on a cell’s ability to roll along a surface, MIT researchers have developed a simple, inexpensive system to sort different kinds of cells — a process that could result in low-cost tools to test for diseases such ...


Researchers control growth rate of replacement blood vessels, tissues

March 06, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet

Researchers have discovered a way to control the growth rate of replacement tissue and the formation of new blood vessels, which solves one of the vexing problems of growing replacement tissue to treat injuries ...


Nanoscale tool allows scientists to study membrane proteins one at a time

March 06, 2008 | User rating: 4.9 / 5 after 7 vote(s) | No comments yet

In biology, as in construction, it’s all about having tools that fit the job. Researchers at Rockefeller University have now created a tiny tool, more than 10,000 times smaller than the diameter of a human ...


New technique takes a big step in examination of small structures

March 05, 2008 | User rating: 4.4 / 5 after 5 vote(s) | No comments yet

A team led by a Purdue University researcher has achieved images of a virus in detail two times greater than had previously been achieved. Wen Jiang, an assistant professor of biological sciences at Purdue, ...


Cellular Construction Methods Emulated

March 05, 2008 | User rating: 4.1 / 5 after 7 vote(s) | No comments yet

Not only is our body made of individual organs, our cells themselves are made of tiny organelles, a variety of separate compartments that fulfill different tasks. Such functional, nanostructured systems would also be useful ...


A nano-sensor for better detection of Mad Cow Disease agent

March 03, 2008 | User rating: 3.8 / 5 after 5 vote(s) | No comments yet

In an advance in food safety, researchers in New York are reporting development of a nano-sized sensor that detects record low levels of the deadly prion proteins that cause Mad Cow Disease and other so-called prion diseases. ...


Nanomedicine system engineered to enhance therapeutic effects of injectable drugs

March 03, 2008 | User rating: 5 / 5 after 5 vote(s) | No comments yet

In an article featured on the cover of the March issue of Nature Nanotechnology, Mauro Ferrari, Ph.D., of The University of Texas Health Science Center at Houston presented a proof-of-concept study on a new multistage ...


Biomagnetics developed for use in new breast cancer tests

February 29, 2008 | User rating: 4.7 / 5 after 7 vote(s) | No comments yet

A team from UCL has developed a new medical device which will make the early detection of breast cancer more cost effective and easier to administer. The team - which won a prestigious Brian Mercer Feasibility ...


Electronic structure of DNA revealed for the first time

February 28, 2008 | User rating: 4.3 / 5 after 19 vote(s) | No comments yet

Utilizing a technique that combines low temperature measurements and theoretical calculations, Hebrew University of Jerusalem scientists and others have revealed for the first time the electronic structure of single DNA molecules.


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