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Archive for the 'Nanoscale Bulk Technologies' Category

Nanotechnology and the rest of the universe

Posted by Jim Lewis on July 4th, 2012

A forest of long DNA strands hanging at known positions from a thin gold foil may provide a method to detect hypothetical particles of dark matter, thought to compose 26% of the universe.

Nanotechnology greatly improves sensitivity of common medical tests

Posted by Jim Lewis on June 21st, 2012

A new nanomaterial provides a three million-fold improvement in the sensitivity of common medical tests, potentially permitting earlier detection of cancer and Alzheimer’s disease.

Individual atoms resolved within nanoparticle comprising several grains

Posted by Jim Lewis on June 20th, 2012

Current methods can image individual atoms in complex structures if the structures are crystalline, comprising many identical structures in a regular array. A new method resolves individual atoms in nanoparticles comprising several irregularly arranged crystalline grains.

Carbon nanotube graphene composite improves downhill bike rim

Posted by Jim Lewis on May 26th, 2012

Zyvex Technologies and ENVE Composites have demonstrated the superiority of a proprietary nanostructured composite in downhill cycling.

Novel silicon nanostructure extends battery life

Posted by Jim Lewis on May 15th, 2012

Templates made from polymer nanofibers enable the formation of long-lived silicon nanostructures that store ten times as much charge as do graphite battery terminals.

Drug-resistant cancer cells cannot resist plasmonic nanobubbles

Posted by Jim Lewis on May 13th, 2012

Nanoparticles targeted to cancer cells by antibodies cannot achieve enough specificity to kill drug-resistant cancer cells while sparing normal cells, but can achieve enough specificity to produce nanobubbles only in cancer cells, so the drug only enters cancer cells.

Nanosponges to recover spilled oil (includes video)

Posted by Jim Lewis on May 7th, 2012

Doping carbon nanotubes with boron while they are being formed produces a novel molecular architecture formed by boron induced kinks and linkages. These nanosponges can be used repeatedly to absorb and retrieve or burn spilled oil.

Will piezoelectric graphene provide options for nanoscale manipulation?

Posted by Jim Lewis on April 25th, 2012

Calculations using density functional theory have demonstrated that graphene can be made piezoelectric by adsorbing atoms or molecules on one surface, or by adsorbing different atoms or molecules on each surface.

Gold nanostars shuttled to cancer cell nucleus to release drug

Posted by Jim Lewis on April 24th, 2012

Gold nanostars targeted to a protein over-expressed in most cancer cells are shuttled by that protein directly to the cancer cell nucleus where illumination with a laser light releases a drug that deforms the nucleus and kills the cell.

Nanoparticles reduce tumors in clinical trial

Posted by Jim Lewis on April 17th, 2012

Clinical trials in patients with advanced or metastatic tumors using targeted nanoparticles to deliver a standard chemotherapeutic drug showed tumor shrinkage, even in the case of cancers for which that drug is not normally effective.

Fast nanoscale 3D-printing (link to video)

Posted by Jim Lewis on April 12th, 2012

A new two-photon polymerization process enables fast printing of arbitrarily complex three dimensional objects with 100-nanometer resolution.

Nanostructured adhesive can hold up to 700 pounds on glass

Posted by Jim Lewis on March 31st, 2012

A hand-sized adhesive inspired by the skin and tendon morphology of a gecko provides an easily reversible force capable of holding 700 pounds on a glass surface.

Nanotechnology regrows blood vessels after ischemic damage

Posted by Jim Lewis on March 26th, 2012

In a rat model of ischemic damage, nanoparticle delivery of a growth factor and a coreceptor promotes regrowth of damaged blood vessels in seven days.

Faster, less expensive medical diagnostics through nanotechnology

Posted by Jim Lewis on March 23rd, 2012

New protein repellent coating enhances the speed of carbon nanotube-based biosensors, pointing the way to faster, cheaper medical diagnostics.

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.