Foresight Nanotech Institute Logo
Image of nano

Archive for the 'Research' Category

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.

New method to identify intermediates in protein folding

Posted by Jim Lewis on June 12th, 2012

Tryptophan residues introduced at various positions in a protein chain identify folding intermediates that are too short-lived to be structurally characterized otherwise.

Advancing nanotechnology with protein building blocks

Posted by Jim Lewis on June 6th, 2012

A variety of protein cage structures have been constructed by designing specific protein domains to self-assemble as atomically precise protein building blocks in defined geometries.

DNA tiles provide faster, less expensive way to fabricate complex DNA objects

Posted by Jim Lewis on May 31st, 2012

A set of 310 short single-stranded DNA tiles, plus a few additional short sequences for the edges, has been used to form more than a hundred large, complex DNA objects.

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.

Mounting graphene on boron nitride improves its electronic properties

Posted by Jim Lewis on April 21st, 2012

Creating a superlattice by placing graphene on boron nitride may allow control of electron motion in graphene and make graphene electronics practical.

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.

Adding to the toolbox for making complex molecular machines

Posted by Jim Lewis on April 4th, 2012

A set of rationally engineered transcriptional regulators for yeast will make it easier to build complex molecular machine systems in yeast, some of which may become useful additions to pathway technologies for atomically precise manufacturing and productive nanosystems.

Nanotechnology-based sensor does rapid reads of single DNA molecule

Posted by Jim Lewis on April 1st, 2012

A combination of a molecular motor protein and a nanopore protein has been harnessed for rapidly sequencing single DNA molecules.

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.

DNA nanotechnology-based nanorobot delivers cell suicide message to cancer cells

Posted by Jim Lewis on March 8th, 2012

Functioning DNA nanorobots to deliver specific molecular signals to cells were designed by combining DNA origami, DNA aptamers, and DNA logic gates.

Novel RNA structural motifs expand tool kit for RNA nanotechnology

Posted by Jim Lewis on February 26th, 2012

New computational methods to explore the rapidly expanding collection of high resolution three-dimensional RNA structures reveal new RNA structural motifs, identifying additional building blocks for complex RNA nanostructures.

Machine learning may improve molecular design for nanotechnology

Posted by Jim Lewis on February 22nd, 2012

A set of machine learning programs can now predict properties of small organic molecules as accurately as can calculations based upon the Schrödinger equation, but in milliseconds rather than hours.

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 [...]