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Archive for the 'Nanoscale Bulk Technologies' Category

Carbon Nanotubes Help Renewable Energy Industry by Improving Wind Turbine Durability

Posted by Jim Lewis on March 16th, 2012

Composites made with small amounts of multi-walled carbon nanotubes improve wind turbine blades by reducing mass while retaining strength.

Nanotechnology, DNA sequencing, and personalized medicine

Posted by Jim Lewis on February 20th, 2012

Artist’s conception of a nanopore drilled into a layer of graphene to speed up DNA sequencing. One of the greatest promises of near-term nanotechnoloogy is cheaper DNA sequencing to speed the development of personalized medicine. There are not only genetic differences between different patients, but also genetic differences between, for example, different cancers of the [...]

Graphene heterostructures may lead to graphene-based computer chips

Posted by Jim Lewis on February 12th, 2012

A field-effect tunneling transistor comprising a vertical heterostructure of atomically thin layers of graphene and boron nitride or molybdenum disulfide may pave the way for computer chips based on graphene nanotechnology.

Current nanotechnology too cool to ignore

Posted by Jim Lewis on February 10th, 2012

ideo of a superhydrophobic spray-on coating shows chocolate syrup shooting off a white shoe leaving it spotless.

Panel recommends research to manage health and environmental risks of nanomaterials

Posted by Jim Lewis on January 28th, 2012

A National Academy of Sciences panel has recommended a four-part research effort focused on preventing and managing any potential health and environmental risks of nanomaterials.

First Master's of Science in Nanomedicine degree program in US announced

Posted by Jim Lewis on January 6th, 2012

The first Master’s of Science in Nanomedicine degree program in US is announced. As an example of the rapidly developing potential of nanomedicine, a novel type of nanoparticle succeeded in two different mouse models in destroying a type of brain cancer that had previously been completely resistant to all treatment attempts.

Mechanical pressure produces atomically-precise, multifunctional 2D sheets

Posted by Jim Lewis on December 26th, 2011

Protein-like structures called peptoids can be formed into stable, free-floating nanosheets.

Christine Peterson on current state and future potential of nanotechnology

Posted by Jim Lewis on December 21st, 2011

When can we expect advanced nanomachinery to be commercialized? Will any technologies not be affected in some way by advanced nanotechnology?

Turning nanoparticles into multicomponent three-dimensional nanostructures

Posted by Jim Lewis on December 12th, 2011

Controlling the chemical processes of corrosion and plating at the nanoscale has been used to fabricate from inorganic nanoparticles complex three-dimensional objects with hollow interiors.

Lecture by Eric Drexler at Oxford on physical law and the future of nanotechnology (video)

Posted by Jim Lewis on December 6th, 2011

In a lecture at Oxford Eric Drexler argued that atomically precise manufacturing will be the next great revolution in the material basis of civilization, and discussed how we can establish reliable knowledge about key aspects of such technologies.

New light-sensitive polymer to control drug release from nanoparticles

Posted by Jim Lewis on December 4th, 2011

A new polymer that disintegrates in response to harmless radiation that can penetrate several inches into human tissue may lead to nanoparticles that release their drug cargo only at a desired time and place.

Darpa seeks nanotechnology defense against novel pathogens

Posted by Jim Lewis on November 30th, 2011

To counter the threat of evolved or engineered resistance of pathogenic bacteria to antibiotics, Darpa proposes to use nanotechnology to develop “Rapidly Adaptable Nanotherapeutics”.

Will new piezoelectric materials lead to new tools for nanotechnology?

Posted by Jim Lewis on November 27th, 2011

Will the integration of a single-crystal material with “giant” piezoelectric properties onto silicon make possible scanning probe microscopes on a chip?

Leveraging nanoforces to increase biosensor sensitivity

Posted by Jim Lewis on November 16th, 2011

This contribution has been forwarded by Ivo Rivetta. The primary forces on the nanometer scale are scaled versions of what we experience on a day to day basis. Instead of gravity, surface forces such as water tension and electric charge dominate. As an example, compare wet basketballs and wet sand. The weight of the basketballs [...]

Carbon nanotube muscles could propel future medical nanorobots (video)

Posted by Jim Lewis on October 31st, 2011

Yarn woven from carbon nanotubes provides a thousand times more rotation than is obtained from other artificial muscles, and could be made into motors to provide propulsion for micrometer-sized medical nanorobots.

Using DNA as bonds to build new materials from nanoparticles

Posted by Jim Lewis on October 31st, 2011

Varying the length of the DNA used to connect the nanoparticles provides for a wide variety of nanoparticle sizes and crystal symmetries.

Magnetic nanoparticles to cook brain cancer go into trial in patient

Posted by Jim Lewis on October 12th, 2011

Nanotechnology has been applied to produce various types of nanoparticles that can deliver toxic agents specifically to the cancer cells. Many of these approaches have shown promise in animal studies. One approach using magnetic nanoparticles has now gone into trials in patients. From “Nano-therapy that cooks deadly brain tumors advances in Germany,” by Ryan McBride: [...]

Boston College Researches Uncover Early Phases of Carbon Nanotube Growth

Posted by Jim Lewis on October 7th, 2011

Christopher William Ince Jr. writes about a new insight into how nanotubes grow, which may lead to even more useful technological applications for these nanostructures: Physicists Zhifeng Ren and Hengzhi Wang of Boston College have discovered two initial stages of carbon nanotube growth previously obscured during the growth process. What the researches found is that [...]

Nanotechnology for Heart Repair Advances

Posted by Jim Lewis on September 29th, 2011

Growing heart cells in a scaffold containing gold nanowires produces a tissue patch that is thicker and in which the cells beat synchronously as they do in healthy heart tissue.

Long nanowires with controlled orientation grown on sapphire

Posted by Jim Lewis on August 31st, 2011

Growing semiconductor nanowires along crystallographic planes of sapphire provides well-structured nanowires with excellent optical and electronic properties.