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Archive for the 'Artificial Molecular Machines' Category

Self-assembly of a molecular piston

Posted by Jim Lewis on March 4th, 2011

A French and Chinese collaboration has designed a molecular piston that self-assembles to form a complex stable enough that disassembly is very slow compared to the sliding motion of the piston.

DNA molecular robots learn to walk in any direction along a branched track

Posted by Jim Lewis on February 23rd, 2011

In yet another in a long list of improvements to DNA based molecular machines, DNA molecular robots learn to walk in any direction along a branched track.

Molecular machine switches magnetic state at room temperature

Posted by Jim Lewis on January 29th, 2011

Irradiation with two wavelengths of visible light switches the position of a nitrogen atom close to a nickel ion, and in the process switches the magnetic state of the nickel ion.

Advance could speed RNA nanotechnology

Posted by Jim Lewis on January 20th, 2011

RNA nanostructures chemically modified to be resistant to degradation retain 3D structure and biological activity.

Scaling up from atomic assembly and individual nanodevices to macroscopic systems

Posted by Jim Lewis on January 13th, 2011

51 years after Richard Feynman envisioned nanoscience in his famous address, “Plenty of Room at the Bottom,” four extraordinary researchers joined in a roundtable discussion of the future of nanoscience.

Update and summary of potential applications of medical nanorobotics

Posted by Jim Lewis on January 10th, 2011

Robert A. Freitas Jr. has made available his chapter on nanorobotics from the book The Future of Aging.

Proteins designed ‘from scratch’ function in living cells

Posted by Jim Lewis on January 9th, 2011

A significant fraction of small protein sequences designed only to fold into stable structures can substitute for missing natural proteins.

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

Posted by Jim Lewis on 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.

Feynman Prizes in Nanotechnology Awarded by Foresight Institute

Posted by Jim Lewis on December 20th, 2010

Palo Alto, CA – December 20, 2010 – The Foresight Institute, a nanotechnology education and public policy think tank based in Palo Alto, has announced the winners of the prestigious 2010 Foresight Institute Feynman Prizes in Nanotechnology. Established in 1993 in honor of Nobel Prize winner Richard Feynman, two $5,000 prizes are awarded in two [...]

Theoretical analysis of powering nanorobots with blood glucose and oxygen

Posted by Jim Lewis on November 4th, 2010

Hogg and Freitas provide a theoretical analysis of the power constraints when nanorobots rely entirely on ambient bloodstream oxygen and glucose and identify aspects of nanorobot design that significantly affect available power.

Making and opening a Mobius strip with DNA Kirigami

Posted by Jim Lewis on October 12th, 2010

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

DNA springs enable mechanical control of enzymatic reaction

Posted by Jim Lewis on October 8th, 2010

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

Foresight’s student award-winners go on to great things

Posted by Christine Peterson on July 20th, 2010

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 [...]

Nominations now open for 2010 Feynman Prize in Nanotechnology

Posted by Christine Peterson on July 7th, 2010

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 [...]

Seeman, Eigler to share $1 million Kavli nano prize

Posted by Christine Peterson on June 4th, 2010

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 [...]

Zyvex founder Jim Von Ehr: “Rudimentary molecular manufacturing by 2020″

Posted by Christine Peterson on June 3rd, 2010

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 [...]

Do-It-Yourself DNA nanotechnology from Caltech

Posted by Christine Peterson on May 23rd, 2010

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 [...]

DNA-based ‘robotic’ assembly begins

Posted by Christine Peterson on May 19th, 2010

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 [...]

The Singularity is Near: the Movie

Posted by Christine Peterson on April 23rd, 2010

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 [...]

MIT’s Belcher uses engineered virus to split water

Posted by Christine Peterson on April 16th, 2010

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 [...]