Featured Research

from universities, journals, and other organizations

Healing the iPhone's wounds

Date:
January 10, 2012
Source:
University of Pittsburgh
Summary:
Scientists propose a "repair-and-go" approach to fixing malfunctions caused by small-surface cracks on any digital device or part before it hits store shelves.

Like the human body, a digital device often suffers a few bruises and scratches within a lifetime. As in medicine, these injuries can be easily detected and repaired (or healed). At other times, however, a digital device may sustain hard-to-pinpoint nanoscale scratches, which can cause the device as a whole to malfunction.

In a paper published on Jan. 10, in Nature Nanotechnology, a team of researchers from the University of Pittsburgh and the University of Massachusetts Amherst (UMass) propose a "repair-and-go" approach to fixing malfunctions caused by small-surface cracks on any digital device or part before it hits store shelves.

"Anything that's a machine with a surface is affected by these small-scale cracks," said Anna Balazs, Distinguished Professor of Chemical and Petroleum Engineering in Pitt's Swanson School of Engineering and coinvestigator on the project. "These are surfaces that play a role in almost anything, especially functionality."

The Pitt-UMass research team approach was inspired by the ability of white blood cells in the body to heal wounds on-site. Balazs and Pitt colleagues first came up with a theoretical "repair-and-go" method: A flexible microcapsule filled with a solution of nanoparticles would be applied to a damaged surface; it would then repair defects by releasing nanoparticles into them. Using nanoparticles and droplets of oil stabilized with a polymer surfactant -- compounds that lower the surface tension of a liquid -- the UMass team actualized the theory, showing that these microcapsules found the cracks and delivered the nanoparticle contents into them. Balazs proposes that manufacturers use this method as a last step in the building process.

"The repair-and-go method can extend the lifetime of any system or device," she said. "Additionally, it could be used as a repair method after a crack has been found."

Original research by Balazs and her team was published in ACS Nano and then reported on in Nature Nanotechnology's "News and Views" section in September 2010.


Story Source:

The above story is based on materials provided by University of Pittsburgh. Note: Materials may be edited for content and length.


Journal Reference:

  1. Katrina Kratz, Amrit Narasimhan, Ravisubhash Tangirala, SungCheal Moon, Ravindra Revanur, Santanu Kundu, Hyun Suk Kim, Alfred J. Crosby, Thomas P. Russell, Todd Emrick, German Kolmakov, Anna C. Balazs. Probing and repairing damaged surfaces with nanoparticle-containing microcapsules. Nature Nanotechnology, 2012; DOI: 10.1038/nnano.2011.235

Cite This Page:

University of Pittsburgh. "Healing the iPhone's wounds." ScienceDaily. ScienceDaily, 10 January 2012. <www.sciencedaily.com/releases/2012/01/120110151738.htm>.
University of Pittsburgh. (2012, January 10). Healing the iPhone's wounds. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2012/01/120110151738.htm
University of Pittsburgh. "Healing the iPhone's wounds." ScienceDaily. www.sciencedaily.com/releases/2012/01/120110151738.htm (accessed October 2, 2014).

Share This



More Matter & Energy News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Japan Looks To Faster Future As Bullet Train Turns 50

Japan Looks To Faster Future As Bullet Train Turns 50

Newsy (Oct. 1, 2014) Japan's bullet train turns 50 Wednesday. Here's a look at how it's changed over half a century — and the changes it's inspired globally. Video provided by Newsy
Powered by NewsLook.com
US Police Put Body Cameras to the Test

US Police Put Body Cameras to the Test

AFP (Oct. 1, 2014) Police body cameras are gradually being rolled out across the US, with interest surging after the fatal police shooting in August of an unarmed black teenager. Duration: 02:18 Video provided by AFP
Powered by NewsLook.com
Raw: Japan Celebrates 'bullet Train' Anniversary

Raw: Japan Celebrates 'bullet Train' Anniversary

AP (Oct. 1, 2014) A ceremony marking 50 years since Japan launched its Shinkansen bullet train was held on Wednesday in Tokyo. The latest model can travel from Tokyo to Osaka, a distance of 319 miles, in two hours and 25 minutes. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

More Coverage


New Nanotech Technique for Lower-Cost Materials Repair

Jan. 11, 2012 Polymer scientists and engineers have discovered how to make nano-scale repairs to a damaged surface equivalent to spot-filling a scratched car fender rather than re-surfacing the entire ... read more

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins