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Will piezoelectric graphene provide options for nanoscale manipulation?

Wednesday, 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.

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

Thursday, 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.

DNA motor navigates network of DNA tracks

Tuesday, January 31st, 2012

Scientists at Kyoto University and the University of Oxford have combined DNA origami and DNA motors to take another step toward programmed artificial molecular assembly lines.

Arrays of artificial molecular machines could lead to atomically precise nanotechnology

Thursday, December 29th, 2011

A tutorial review available after free registration presents a theory-based exploration of the difficulty in moving from simple molecular switches to arrays of artificial molecular machines capable to doing substantial, useful external work.

Mechanical pressure produces atomically-precise, multifunctional 2D sheets

Monday, December 26th, 2011

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

Geometry of DNA nanostructures used to program molecular recognition

Friday, November 25th, 2011

Adding a new molecular recognition code to structural DNA nanotechnology—a pattern of projecting and recessed blunt-end DNA helices can be used to code the assembly of DNA origami tiles into larger DNA nanostructures.

A modular molecular composite nanosystem for solar power

Tuesday, May 17th, 2011

A bacterial virus called M13 was genetically engineered to control the arrangement of carbon nanotubes, improving solar-cell efficiency by nearly one-third.

New software aids design of 3-D DNA structures

Thursday, May 12th, 2011

New software for scaffolded DNA origami makes it easier to predict what shape will result from a given DNA template.

DNA nanotechnology builds 3D forms with complex curves (includes video)

Wednesday, April 20th, 2011

The capabilities of scaffolded DNA origami procedures have been expanded to construct arbitrary, two- and three-dimensional shapes.

One-molecule robot to be presented at January’s TEDxCaltech conference

Sunday, January 2nd, 2011

A one-molecule robot capable of following a trail of chemical breadcrumbs will be presented at TEDxCaltech-Feynman’s Vision: The Next 50 Years.

Making and opening a Mobius strip with DNA Kirigami

Tuesday, October 12th, 2010

Reconfiguring the topology of DNA nanostructures offers novel architectures for nanodevices.

DNA springs enable mechanical control of enzymatic reaction

Friday, October 8th, 2010

DNA springs mechanically control an enzymatic reactions by exerting force on specific parts of the enzyme molecule.

Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates

Tuesday, November 10th, 2009

Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates. Harnessing DNA origami to arrange CNTs.

Feynman’s Path to Nanotech (part 5)

Friday, July 10th, 2009

Is it Worth Starting Now? Surely, you will say, it would have been wonderful if back in 1959 people had taken Feynman seriously and really tried the Feynman path: we’d have the full-fledged paraphernalia of real, live molecular machinery now, with everything ranging from nanofactories to cell-repair machines. After all, it’s been 50 years. The [...]

Nano-boxes from DNA origami

Thursday, May 7th, 2009

Just a week ago I was at NIST to hear a talk by Paul Rothemund, winner of the 2006 Feynman Prize with Erik Winfree for the invention of DNA Origami. In just 3 years this has taken off in a big way. This story at Nanowerk News reports the latest: Danish researchers have made a [...]

Advancing nanotechnology by organizing functional components on addressable DNA scaffolds

Wednesday, April 29th, 2009

Two recent publications provide more evidence of the growing capability of DNA scaffolds to support complex and interactive functions.

DNA nanotechnology builds large structures from information-rich seeds

Monday, March 30th, 2009

DNA origami structures act as seeds to program the construction of structures up to 100 times larger.

Structural DNA nanotechnology arrays devices to capture molecular building blocks

Friday, February 20th, 2009

Two independently controlled nanomechanical devices can be positioned on a two-dimensional DNA grid so that they can cooperate to capture between them one of four DNA building blocks, determined by which of two possible states each device is set to.

Cut-and-paste single molecule nanotechnology using DNA

Friday, October 17th, 2008

A group of German scientists have developed a new slant on DNA nanotechnology by using atomic force microscopy to assemble a DNA scaffold on a surface to which molecular building blocks can then bind.

Do-it-yourself nanotechnology objects from DNA

Friday, April 4th, 2008

Snowbird, Utah is the place to be for nanotechnologists on April 22-25 for the 5th Annual Conference on Foundations of Nanoscience (FNANO08): Self-Assembled Architectures and Devices. Those of you who have attended Foresight research conferences will recognize a number of familiar names and lots of new ones. Mark Sims of Nanorex tells us that they [...]