Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Researcher proves mass is important at the nano-scale, matters in calculations and measurements

Alan Bowling, assistant professor of mechanical and aerospace engineering
Alan Bowling, assistant professor of mechanical and aerospace engineering

Abstract:
A UT Arlington engineering professor has proven that the effect of mass is important, can be measured and has a significant impact on any calculations and measurements at the sub-micrometer scale.

Researcher proves mass is important at the nano-scale, matters in calculations and measurements

Arlington, TX | Posted on January 22nd, 2014

The findings help to better understand movement of nano-sized objects in fluid environments that can be characterized by a low Reynolds number, which often occurs in biological systems. The unconventional results are consistent with Newton's Second Law of Motion, a well-established law of physics, and imply that mass should be included in the dynamic model of these nano-systems. The most widely accepted models omit mass at that scale.

Alan Bowling, an assistant professor of mechanical and aerospace engineering, collaborated with Samarendra Mohanty, an assistant physics professor, and doctoral students Mahdi Haghshenas-Jaryani, Bryan Black and Sarvenaz Ghaffari, as well as graduate student James Drake to make the discovery.

A key advantage of the new model is that it can be used to build computer simulations of nano-sized objects that have drastically reduced run times as compared to a conventional model based on Newton's second law. These conventional models have run times of days, weeks, months and years while the new model requires only seconds or minutes to run.

In the past, researchers attempted to address the long run time by omitting the mass terms in the model. This resulted in faster run times but, paradoxically, violated Newton's second law upon which the conventional model was based. The remedy for this paradox was to argue that mass was unimportant at the nano-scale.

However, the new model retains mass, and predicts unexpected motion of nano-sized objects in a fluid that has been experimentally observed. The new model also runs much faster than both the conventional and massless models.

It is expected that this new model will significantly accelerate research involving small-scale phenomena.

Research areas that Bowling and collaborators at UT Arlington are currently investigating include cell migration, protein function, bionic medical devices and nanoparticle suspensions for storing thermal energy. However, the applications for the computer simulation in medicine, biology, and other fields are endless.

Khosrow Behbehani, dean of the College of Engineering, said the team's findings may alter ways of thinking throughout the engineering and scientific worlds.

"The paper is only the beginning for this research," Behbehani said. "I anticipate a high level of interest in the findings. It could transform the way we conduct research in nano-engineering by providing researchers with the ability to study such physical phenomena at such small scale through the model."

The team used optical tweezers previously developed by Mohanty to measure oscillations that occur at the nano scale, thus proving that mass and acceleration must be considered at that level as well.

"We proved it in the lab," Bowling said. "Publication in an accepted journal is the next step in gaining mass acceptance of the idea, which flies in the face of what most people believe now."

The discovery resulted from a 2012 National Science Foundation grant project in which the UT Arlington team investigated a new model for how motor proteins behave in the body. The NSF award was funded through the Early Concept Grants for Exploratory Research, or EAGER program. The grants support exploratory work in its early stages on untested, but potentially transformative, research ideas or approaches.

####

About University of Texas at Arlington
The University of Texas at Arlington is a comprehensive research institution of more than 33,300 students and 2,300 faculty members in the epicenter of North Texas. It is the second largest institution in the University of Texas System. Research expenditures reached almost $78 million last year. Visit www.uta.edu for more information.

For more information, please click here

Contacts:
Herb Booth

817-272-7075

Copyright © University of Texas at Arlington

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 Links

The research is detailed in the paper “Dynamics of Microscopic Objects in Optical Tweezers: Experimental Determination of Underdamped Regime and Numerical Simulation using Multiscale Analysis” and published online by the Journal of Non-Linear Dynamics. The paper is scheduled for publication in the journal’s print version later this year:

Related News Press

News and information

CiQUS researchers obtain high-quality perovskites over large areas by a chemical method March 4th, 2015

Arrowhead to Present at 2015 Barclays Global Healthcare Conference March 4th, 2015

Nanosorbents Increase Extraction, Recycling of Silver from Aqueous Solutions March 4th, 2015

Black phosphorus is new 'wonder material' for improving optical communication March 3rd, 2015

Chemistry

Chromium-Centered Cycloparaphenylene Rings as New Tools for Making Functionalized Nanocarbons February 24th, 2015

Stretch and relax! -- Losing 1 electron switches magnetism on in dichromium February 23rd, 2015

A straightforward, rapid and continuous method to protect MOF nanocrystals against water February 9th, 2015

Research shows benefits of silicon carbide for sensors in harsh environments: Advantages identified across industries February 9th, 2015

Govt.-Legislation/Regulation/Funding/Policy

The taming of magnetic vortices: Unified theory for skyrmion-materials March 3rd, 2015

Black phosphorus is new 'wonder material' for improving optical communication March 3rd, 2015

New nanodevice defeats drug resistance: Tiny particles embedded in gel can turn off drug-resistance genes, then release cancer drugs March 2nd, 2015

Forbidden quantum leaps possible with high-res spectroscopy March 2nd, 2015

Discoveries

CiQUS researchers obtain high-quality perovskites over large areas by a chemical method March 4th, 2015

Nanosorbents Increase Extraction, Recycling of Silver from Aqueous Solutions March 4th, 2015

The taming of magnetic vortices: Unified theory for skyrmion-materials March 3rd, 2015

Democratizing synthetic biology: New method makes research cheaper, faster, and more accessible March 3rd, 2015

Announcements

CiQUS researchers obtain high-quality perovskites over large areas by a chemical method March 4th, 2015

Arrowhead to Present at 2015 Barclays Global Healthcare Conference March 4th, 2015

Nanosorbents Increase Extraction, Recycling of Silver from Aqueous Solutions March 4th, 2015

Black phosphorus is new 'wonder material' for improving optical communication March 3rd, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Nanosorbents Increase Extraction, Recycling of Silver from Aqueous Solutions March 4th, 2015

Democratizing synthetic biology: New method makes research cheaper, faster, and more accessible March 3rd, 2015

Pens filled with high-tech inks for do-it-yourself sensors March 3rd, 2015

Black phosphorus is new 'wonder material' for improving optical communication March 3rd, 2015

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

Rice's Stephan Link honored for nanoscience research: The Welch Foundation honors ‘rising star’ with $100,000 Hackerman Award February 26th, 2015

Cutting-edge technology optimizes cancer therapy with nanomedicine drug combinations: UCLA bioengineers develop platform that offers personalized approach to treatment February 24th, 2015

QD Vision Named Edison Award Finalist for Innovative Color IQ™ Quantum Dot Technology February 23rd, 2015

Rosetta Team Wins the National Space Society's Science and Engineering Space Pioneer Award February 23rd, 2015

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 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE