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Archive for the 'Artificial Molecular Machines' Category

Computational circuit built from 74 small DNA molecules (with video)

Posted by Jim Lewis on June 9th, 2011

A biochemical circuit built from 74 small DNA molecules demonstrates an approach that may enable embedded control of molecular devices.

Foresight@Google: Full Program of Speakers posted!

Posted by Christine Peterson on June 2nd, 2011

We are proud to announce our final conference program for Foresight@Google‘s 25th Anniversary Conference Celebration, held June 25-26 in Mountain View, CA.  For $50 off registration use code: NANODOT This weekend – full of plenary talks, panels, and breakout sessions – is a unique opportunity to be stimulated, enlightened and inspired by direct interaction with [...]

Computer simulation of evolution of primordial molecular machine

Posted by Jim Lewis on June 1st, 2011

A Monte-Carlo simulation shows that a simple self-replicating RNA-like molecule in a specific protective environment could evolve the ability to translate a genetic code to produce peptides.

New grants to fund molecular machine research in The Netherlands

Posted by Jim Lewis on May 23rd, 2011

New research grants will support exploration of how molecular machines function.

TODAY is the last day for early rate on Foresight@Google

Posted by Christine Peterson on May 17th, 2011

Midnight tonight Pacific time is the deadline for the early registration rate on Foresight@Google, our 25th Anniversary Conference and Celebration. Check it out here: http://foresight.org/reunion Past participants have said: “This is mind candy for my soul. Having attended for two years now, this event stands alone in my mind as an opportunity to explore new horizons, [...]

Confining enzymes in specially engineered nanoporous materials may advance nanotechnology

Posted by Jim Lewis on April 13th, 2011

Engineering both the pore size and chemical functionality of nanoporous materials affects both the secondary structure and the catalytic activity of the enzymes confined in the nanopores.

AFM visualization of molecular robot moving along DNA scaffold (with video)

Posted by Jim Lewis on March 21st, 2011

Researchers in the UK and Japan use atomic force microscopy to visualize a DNA molecular robot moving along a 100-nm DNA track.

Work theoretically extracted from molecular motor

Posted by Jim Lewis on March 10th, 2011

Computational work links optically-induced molecular shape change to change in DNA structure to extract useful work.

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.