Navigation Links
What if the nanoworld slides
Date:11/8/2012

A study published by Andrea Vanossi, Nicola Manini and Erio Tosatti - three SISSA researchers - in PNAS (Proceedings of the National Academy of Sciences) provides a new tool to better understand how sliding friction works in nanotribology, through colloidal crystals.

By theoretically studying these systems of charged microparticles, researchers are able to analyze friction forces through molecular dynamics simulations with accuracy never experienced before.

"There are several and very concrete potentialities", stated Andrea Vanossi, one of the members of the research group. "Just think of the constant miniaturization of high-tech components and of all the different nanotechnology sectors: if we understand how friction works at these levels, we will be able to create even more effective molecular motors or functional microsystems".

Colloidals are part of our everyday life (e.g. milk, asphalt or smoke) and they differentiate according to the state of the dispersed and dispersing substance (liquid, solid or gaseous).

The simulations were performed by SISSA in collaboration with ICTP, the Department of Physics in Milan and the CNR-IOM Institute for Materials Manufacturing and they allowed understanding what happens when a colloidal monolayer slides against an optical reticle modifying some parameters such as surface corrugation, drift speed or contact geometry.

The research method is also something new. Before this simulation was performed, only some recent experiments carried out in Germany tried for the first time to describe the behaviour of individual particles of a colloid in friction conditions, but never in such a precise way.

More in detail, researchers also suggest a way to directly extract the energy lost in friction by using the sliding data of the colloid. "This study is innovative also because it will allow predicting the different regimes of static friction realized according t
'/>"/>

Contact: Federica Sgorbissa
comunicazione@medialab.sissa.it
39-040-378-7644
International School of Advanced Studies (SISSA)
Source:Eurekalert  

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
What if the nanoworld slides
(Date:1/15/2014)... Vernon Hills, IL (PRWEB) January 15, 2014 ... Cole-Parmer to find hard-working items for the lab, from ... designated as Guaranteed-in-Stock (GIS)—ready to ship when you order. ... Masterflex® Peristaltic Pumps , from the L/S® model ...
(Date:1/15/2014)... California , January 15, 2014 Oxford ... today announced the appointment of Thomas C Reynolds MD, PhD ... years, development experience gained in the biotechnology industry, most recently ... am delighted to welcome Tom at this transformative time for ...
(Date:1/15/2014)... This webinar will focus on EMA and ... in biosimilars. , Regulatory frameworks are evolving many countries ... the complex nature of biopharmaceuticals makes the demonstration of ... challenging. Based on the specific aspects of biosimilar drug ...
(Date:1/15/2014)... TX (PRWEB) January 15, 2014 More ... disease, and about 1 in 3 seniors will die ... source ). These jaw-dropping figures have shocked many Americans ... and, hopefully, help prevent these tragic age-related cognitive disorders. ...
Breaking Biology Technology:Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2
... Proteon Therapeutics,( http://www.proteontherapeutics.com ), a privately ... address the,medical needs of patients with kidney ... Annual Meeting of the American Society of ... Dilates Outflow,Veins in a Preclinical Model of ...
... Dr. Brad Thompson, President,and CEO of Oncolytics Biotech Inc. ... the Company at the Acumen BioFin Rodman & Renshaw ... 3:20 p.m. ET.,The event will be held at the ... live audio webcast of the presentation will be available ...
... agency to provide free home caregiving to disabled ... has announced its,2007 We Care For Veterans campaign ... services to qualified disabled veterans. (Logo: ... the nation are,donating 20 hours each of free ...
Cached Biology Technology:Proteon Therapeutics to Present at Annual Meeting of American Society of Nephrology in San Francisco on November 2, 2007 2Media Advisory - Oncolytics Biotech Inc. to Present at Acumen BioFin Rodman & Renshaw 9th Annual Healthcare Conference 2Homewatch CareGivers Launches 2007 We Care For Veterans Campaign 2
(Date:4/23/2014)... Climate fiction, or simply cli-fi, is a newly coined term ... global warming. New research from University of Copenhagen shows how ... to simulate the potential consequences of climate change and imagine ... than scientific data on changes in the atmosphere; it is ... by the books we read and the films we see. ...
(Date:4/23/2014)... first cause of dementia and affects some 400,000 people ... been found. One of the reasons for this is ... cause alterations in nerve transmissions and the loss of ... from the Institute of Neuroscience at the Universitat Autnoma ... memory consolidation and were able to develop a gene ...
(Date:4/23/2014)... many social mammals, ravens form different types of social ... and they also form strict dominance relations. From a ... a key ability in daily social life ("knowing who ... group members have with each other sets the stage ... results of this study have been published in the ...
Breaking Biology News(10 mins):Fiction prepares us for a world changed by global warming 2Fiction prepares us for a world changed by global warming 3Loss of memory in Alzheimer's mice models reversed through gene therapy 2Ravens understand the relations among others 2
... Institute of Science and his colleagues caused a storm ... years back that tiny airborne particles, known as aerosols, ... change ?having, on a local scale, an even greater ... how these particles influence clouds have generated many uncertainties. ...
... sequencing of the chimpanzee genome last year, geneticists have spent ... closest evolutionary relative, looking for the differences that distinguish the ... human DNA sequence with the most dramatically increased rate of ... still unknown, but it appears to be directly involved in ...
... new study, published today in the current issue ... Sciences has significant implications for the design of ... in human biomedical research. The groundbreaking study, entitled, ... Quantum Dots", demonstrates that quantum dots can one ...
Cached Biology News:Tiny airborne particles are a major cause of climate change 2Tiny airborne particles are a major cause of climate change 3Researchers identify human DNA on the fast track 2Researchers identify human DNA on the fast track 3Connect the Quantum Dots 2
... filter (S37100, Photographic Filters for Fluorescent ... for black-and-white photography of gels stained ... stain, the safer ethidium bromide alternative. ... filter is identical to the SYPRO ...
Enodgenous alkaline phosphotase inhibitor. Levamisole solution is supplied in concentrated form (20x). The final concentration of levamisole in the substrate solution will be 1 mM....
Several Pichia pastoris strains are available to allow you to optimize expression and recovery of your protein of interest. Table 1 provides information to help you choose the appropriate strain....
Standard 2" or 3" Plastic can be ordered with 81 or 100 cell dividers. Mini 2" Plastics Boxes come standard with 25 cell dividers. Plastic boxes can also be ordered with corresponding freezer racks...
Biology Products: