Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > NYU Researchers Create “Handshaking” Particles

NYU physicists have created “handshaking” particles that link together based on their shape rather than randomly. The graphic shows how the researchers developed a “lock and key” mechanism that allows specific particles to join together. Image courtesy of Nature.
NYU physicists have created “handshaking” particles that link together based on their shape rather than randomly. The graphic shows how the researchers developed a “lock and key” mechanism that allows specific particles to join together. Image courtesy of Nature.

Abstract:
Physicists at New York University have created "handshaking" particles that link together based on their shape rather than randomly. Their work, reported in the latest issue of the journal Nature, marks the first time scientists have succeeded in "programming" particles to join in this manner and offers a type of architecture that could enhance the creation of synthetic materials.

NYU Researchers Create “Handshaking” Particles

New York, NY | Posted on March 26th, 2010

"We expect these interactions to offer unprecedented opportunities for engineering ‘smart' composite particles, new functional materials, and microscopic machinery with mobile parts," wrote the researchers, part of NYU's Center for Soft Matter Research.

The process is centered on creating and manipulating colloids—particles suspended within a fluid medium. Colloidal dispersions comprise such everyday items as milk, gelatin, glass, and porcelain.

Working with microscopic particles—25 placed together, end-to-end, would match the width of a strand of human hair—the researchers developed a "lock and key" mechanism that would allow specific particles to join together much in the way Pac-Man would swallow dots in the 1980s video game.

The "key" is any spherical particle. Creating the "lock," however, required a multi-step polymerization process. To do it, the researchers took a droplet of oil and placed it in water. The process resulted in a hardened outer shell, which would then buckle to form an indentation, or Pac-Man mouth, allowing it to bind to the other sphere ("the key").

The work is part of scientists' ongoing efforts to understand and control how particles self-assemble to make new materials. Complex materials cannot be constructed particle by particle; rather, they must be directed to self-assemble, which would produce these materials in an efficient manner. However, manipulating the self-assembly process has proven elusive to scientists because their understanding of how particles interact is limited.

By creating a process by which particles come together to form an aggregate, physicists at NYU's Center for Soft Matter Research have marked a next step in understanding and developing the self-assembly process.

The paper's authors are: Stefano Sacanna and William Irvine, post-doctoral researchers in NYU's Department of Physics, and NYU Physics Professors Paul Chaikin and David Pine.

####

About New York University
More than 175 years ago, Albert Gallatin, the distinguished statesman who served as secretary of the treasury under Presidents Thomas Jefferson and James Madison, declared his intention to establish "in this immense and fast-growing city ... a system of rational and practical education fitting for all and graciously opened to all." Founded in 1831, New York University is now one of the largest private universities in the United States. Of the more than 3,000 colleges and universities in America, New York University is one of only 60 member institutions of the distinguished Association of American Universities.

For more information, please click here

Contacts:
James Devitt
(212) 998-6808

Copyright © New York University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Measuring the Smallest Magnets July 28th, 2014

WITec to host the 11th Confocal Raman Imaging Symposium from September 29th - October 1st in Ulm, Germany July 28th, 2014

FEI adds Phase Plate Technology and Titan Halo TEM to its Structural Biology Product Portfolio: New solutions provide the high-quality imaging and contrast necessary to analyze the 3D structure of molecules and molecular complexes July 28th, 2014

Production of Toxic Gas Sensor Based on Nanorods July 28th, 2014

Synthetic Biology

Artificial cilia: Scientists from Kiel University develop nano-structured transportation system July 4th, 2014

Artificial enzyme mimics the natural detoxification mechanism in liver cells: Molybdenum oxide particles can assume the function of the endogenous enzyme sulfite oxidase / Basis for new therapeutic application June 30th, 2014

'Life Redesigned: The Emergence of Synthetic Biology' Lecture at Brookhaven Lab on Wednesday, April 30: Biomedical Engineer James Collins to Speak for BSA Distinguished Lecture Series April 16th, 2014

Rice synthetic biologists shine light on genetic circuit analysis: Bioengineers invent ‘light tube array,’ ‘bioscilloscope’ to test, debug genetic circuits March 10th, 2014

Possible Futures

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Surface Characteristics Influence Cellular Growth on Semiconductor Material March 12th, 2014

Academic/Education

Haydale Announces Collaboration Agreement with Swansea University’s Welsh Centre for Printing and Coatings (WCPC) July 12th, 2014

STFC takes delivery of the 100th Hitachi Tabletop SEM in the UK July 3rd, 2014

Innovation Management and the Emergence of the Nanobiotechnology Industry July 1st, 2014

Albany NanoCollege Faculty Member Selected as Editor-in-Chief of the Prestigious Journal of Electronic Materials July 1st, 2014

Self Assembly

Berkeley Lab researchers create nanoparticle thin films that self-assemble in 1 minute June 9th, 2014

Design of self-assembling protein nanomachines starts to click: A nanocage builds itself from engineered components June 5th, 2014

Molecular self-assembly scales up from nanometers to millimeters June 5th, 2014

Nano world: Where towers construct themselves: How physicists get control on the self-assembly process June 2nd, 2014

Discoveries

Seeing is bead-lieving: Rice University scientists create model 'bead-spring' chains with tunable properties July 28th, 2014

Measuring the Smallest Magnets July 28th, 2014

Production of Toxic Gas Sensor Based on Nanorods July 28th, 2014

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE