Reconfiguring the topology of DNA nanostructures offers novel architectures for nanodevices.
Archive for the 'Artificial Molecular Machines' Category
DNA springs mechanically control an enzymatic reactions by exerting force on specific parts of the enzyme molecule.
Foresight Research Analyst and Technical Editor James Lewis has tracked the careers of those receiving Foresight’s student award. Here are his findings on the careers of a few of these gifted young researchers: We at Foresight find it gratifying to track the subsequent careers of those who have won our nanotechnology-related prizes and awards, in [...]
The nomination/submission process for the 2010 Foresight Institute Feynman Prizes in Nanotechnology is now open. Two $5000 prizes are offered, one for theory and one for experimental achievement. These prizes recognize progress toward the goal of atomic-level control in the construction of macroscale 3D objects: an ambitious goal but one toward which physicist Richard Feynman [...]
Foresight Feynman Prize winner Nadrian Seeman will share the $1 million Kavli Prize in nanoscience with IBM’s Don Eigler. From the SciAm blog by Katie Moisse: Donald Eigler from IBM’s Almaden Research Center in San Jose, Calif., and Nadrian Seeman from New York University will jointly accept the nanoscience prize for illuminating the basic units of [...]
Sander Olson interviewed Jim Von Ehr of Zyvex for the website NextBigFuture.com by Brian Wang. Here’s an excerpt: We are confident that we will be able to create simple, blocklike objects within the next five years. From that point, capabilities should grow fairly rapidly. Once simple block objects are created, we can programmably assemble them [...]
Kevin Bullis reports in Technology Review: Now Paul Rothemund, a computer scientist at Caltech, with a background in biology, has developed a relatively inexpensive way to quickly design and build arbitrary shapes and patterns using DNA — and, he says, it’s simple enough for high-school students to use… It’s really spectacular work. I’m extremely excited about [...]
John Faith brings to our attention a writeup by Annalee Newitz over at io9.com which colorfully describes a new achievement by Foresight Feynman prizewinner Nadrian Seeman and team at NYU and Nanjing U.: Today in Nature, a group of researchers announced they’d successfully operated the first assembly line populated entirely by nanobots. The bots in question [...]
David Cassel brings our attention to an h+ review of the long-awaited film The Singularity is Near, based on the book by Ray Kurzweil: In documentary style, we have Ray discussing his ideas about the Singularity, with commentators variously supporting or refuting or worrying about his ideas. With Bill McKibben in the role of the [...]
Angela Belcher and team at MIT have tweaked a bacterial virus to serve as a scaffolding to: attract and bind with molecules of a catalyst (the team used iridium oxide) and a biological pigment (zinc porphyrins). The viruses became wire-like devices that could very efficiently split the oxygen from water molecules. Belcher says that within [...]
The winner of the 2009 Foresight Feynman Prize in Nanotechnology (Theory), Robert A. Freitas Jr., has now been granted the first diamond mechanosynthesis patent. This is not just the first DMS patent but also, I believe, the first mechanosynthesis patent that has ever been issued. Freitas is the sole inventor on this patent, which was [...]
One way to reach molecular machine systems is to get really, really good at protein engineering. If that’s your goal, you’ll want to be in Boston on May 17-21 for PEGS 2010, “the essential protein engineering summit”. Not sure if this is your pathway? Just reading the talk titles is educational. And they have great [...]
Robin Hanson comments on David Brin’s response to a New Scientist editorial. As Brin notes, many would-be broadcasters come from an academic area where for decades the standard assumption has been that aliens are peaceful zero-population-growth no-nuke greens, since we all know that any other sort quickly destroy themselves. This seems to me an instructive [...]
Rob Freitas has a new paper up: Robert A. Freitas Jr., “Diamond Trees (Tropostats): A Molecular Manufacturing Based System for Compositional Atmospheric Homeostasis,” IMM Report 43, 10 February 2010 Abstract. The future technology of molecular manufacturing will enable long-term sequestration of atmospheric carbon in solid diamond products, along with sequestration of lesser masses of numerous [...]
Back in April, I wrote: Nanotechnology, the revolutionary technology, was always about the power of self-replication and never only about the very small. The ability of a machine system to make more of itself, or more generally, make its own parts and be able to assemble or replace them as needed, is called autogeny. There’s [...]
Metamaterials could reduce friction in nanomachines. from Eurekalert: Ames Laboratory researchers discover repulsive Casimir effect Nanoscale machines expected to have wide application in industry, energy, medicine and other fields may someday operate far more efficiently thanks to important theoretical discoveries concerning the manipulation of famous Casimir forces that took place at the U.S. Department of [...]
In Popular Mechanics, longtime Foresight friend Prof. Glenn Reynolds looks at the future of nanotech and artificial intelligence, among other things looking at safety issues, including one call that potentially dangerous technologies be relinquished. He takes a counterintuitive stance, which we’ve discussed here at Foresight over the years: But I wonder if that’s such a [...]
Ted Greenwald continues his Singularity University executive program coverage over at Wired: These days, though, Merkle is setting his sights much higher. Over the past few years he has put together a theoretical system for building diamond, atom by atom. It involves nine molecular tools and methane/hydrogen feedstock on a diamond substrate. He has analyzed [...]
Ted Greenwald posted yesterday at Wired about Foresight member Ralph Merkle’s presentation on nanotechnology at the Singularity University’s first Executive Program, which has just convened over at NASA Ames here in Silicon Valley: From there he skims through a catalog of progress — familiar example of pushing atoms into IBM logos and such on a [...]
Nanotechnology devices: Molecular machines shift into gear. An atomically precise gear, rotated by pushing the teeth one at a time with a STM tip.