Navigation Links
Newly discovered mechanism propels micromotors
Date:10/19/2013

WASHINGTON, D.C. Oct. 15, 2013 -- Scientists studying the behavior of platinum particles immersed in hydrogen peroxide may have discovered a new way to propel microscopic machines. The new mechanism is described in The Journal of Chemical Physics, which is produced by AIP Publishing.

Micro-sized machines operate under very different conditions than their macro-sized counterparts. The high surface-area-to-mass ratio of tiny motors means they require a constant driving force to keep them going. In the past, researchers have relied on asymmetric chemical reactions on the surface of the motors to supply the force. For example, Janus motors, are spherical particles coated with a different material on each side. One of the sides is typically made of a catalyst like platinum, which speeds up the reaction that converts hydrogen peroxide into water and oxygen. When the Janus motor is immersed in hydrogen peroxide, oxygen bubbles form more quickly on the platinum side, pushing the sphere forward.

Researchers from Doshisha University in Kyoto, Japan have now discovered, however, that two-sided materials aren't necessary to make micromotors move. The researchers placed tiny spheres made only of platinum in hydrogen peroxide and observed the particles' movement through a microscope. Although the individual spheres bounced about randomly, the researchers noticed that clumps of particles began to exhibit regular motions. The clumps shaped like teardrops moved forward, those that resembled windmills started to spin, and the boomerang shaped clumps traveled in a circle. After creating a theoretical model of the forces at work, the researchers realized they could explain the regular motions by the asymmetrical drag generated by the different shapes.

The researchers envision combining their new type of motors with existing motors to create easily controllable machines with a versatile range of motions.

Micro- and nano-sized machines m
'/>"/>

Contact: Jason Socrates Bardi
jbardi@aip.org
240-535-4954
American Institute of Physics
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Sutro Announces Newly Formed Scientific Advisory Board
2. Newly-Published Study Compares SURFAXIN LS™ and CUROSURF® in Well-Established Model of Respiratory Distress Syndrome
3. Cardiometabolic Health Congress Expert Faculty Evaluate the Clinical Implications of Newly FDA-Approved Treatment for Homozygous Familial Hypercholesterolemia
4. Scientists Describe Breakthrough Technology for Brain Self-Optimization in Newly Published Paper
5. MedForward Launches Newly Redesigned MedForward.com, Now Offering Mobile Site Design Services to Increase Website Accessibility for Smartphones and Tablets
6. Quanta BioSciences qRT-PCR technology recommended in newly published CDC protocol for detection of H7N9 Avian Influenza
7. FTI Consulting Releases Realigned Segment Information Reflecting Newly Combined Health Solutions Practice
8. Vivid Learning Systems Announces Newly Designed Industry Websites for MSHA, Electrical Utility Safety, Healthcare and OSHA Compliance
9. Dual-acting class of antimalarial compounds discovered with potential to prevent and treat malaria
10. Novel method to make nanomaterials discovered
11. Australian Discovered Biomarkers Map Path to New Blood Test for Bowel Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Newly discovered mechanism propels micromotors
(Date:9/3/2015)... , Sept. 3, 2015 /PRNewswire/ - bioLytical Laboratories Inc., ... announce its study " Sensitivity of a rapid point ... enhanced by its affinity for HIV gp41 IgM antibodies ... Virology.  This study highlights INSTI,s ability to detect early ... findings at the 8 th annual International AIDS ...
(Date:9/3/2015)... (PRWEB) , ... September 03, 2015 , ... If you ... in Boston this October, you will also want to sign up for the ... October 18th. The tour includes a walk through of the (8) chemistry teaching ...
(Date:9/2/2015)... -- Research and Markets ( ... PharmaBiotech,s new report "Biochips and Microarrays - ... This report is an analysis of ... report starts with a description of technologies as ... array comparative genomic hybridization (CGH), copy number variation ...
(Date:9/2/2015)... Virginia , September 2, 2015 ... of the winners of the 2015 BeHEARD science challenge, ... that offers rare disease researchers, access to the latest ... use its drug repositioning and pathway analytics capability to ... Wylder Nation Foundation in the study of Niemann-Pick Disease ...
Breaking Biology Technology:bioLytical's INSTI HIV Test Detects gp41 specific IgM Antibodies 2bioLytical's INSTI HIV Test Detects gp41 specific IgM Antibodies 3Erlab Invites You to Tour the Largest Installation of Filtered Fume Hoods in the World 2Global Biochips and Microarrays Technologies, Markets and Companies Report 2015 with Market Size in 2014 and Projected Value for the Years 2019 and 2024 2Biovista Sponsors Wylder Nation Foundation's Research on Acid Sphingomyelinase Deficiency 2
... press release is available in German . ... be no longer useless or even a problem. On the ... easily or to store data more efficiently! These are two ... made at the Physikalisch-Technische Bundesanstalt (PTB). This so-called "thermoelectric voltage" ...
... 2011 Pacira Pharmaceuticals, Inc. (Nasdaq: PCRX ), ... for the company,s third quarter ended September 30, 2011 will ... 2011. The Pacira management team will host a conference call ... developments on Monday, Oct. 31, 2011 at 9 a.m. ET. ...
... Mexico, Oct. 24, 2011 Synthetic Genomics Inc. (SGI), ... solutions to a variety of markets including biofuels, biochemicals, ... C.V., a Mexico based investing and management company with ... agribusiness, have announced the formation of a new company, ...
Cached Biology Technology:Magnetic nanoswitch for thermoelectric voltages 2Pacira Pharmaceuticals, Inc. Announces Timing for Third Quarter 2011 Financial Results Webcast and Conference Call 2Pacira Pharmaceuticals, Inc. Announces Timing for Third Quarter 2011 Financial Results Webcast and Conference Call 3Synthetic Genomics Inc. and Plenus, S.A. de C.V. Form New Sustainable Agriculture Company, Agradis, Inc. to Develop and Commercialize Products Using Genomic Technologies 2Synthetic Genomics Inc. and Plenus, S.A. de C.V. Form New Sustainable Agriculture Company, Agradis, Inc. to Develop and Commercialize Products Using Genomic Technologies 3Synthetic Genomics Inc. and Plenus, S.A. de C.V. Form New Sustainable Agriculture Company, Agradis, Inc. to Develop and Commercialize Products Using Genomic Technologies 4Synthetic Genomics Inc. and Plenus, S.A. de C.V. Form New Sustainable Agriculture Company, Agradis, Inc. to Develop and Commercialize Products Using Genomic Technologies 5
(Date:8/12/2015)... 12, 2015 As the digital ... innovation and advanced biometrics technology is accelerating beyond expectations.  ... rely on using their credit cards, the digital currency, ... for payment services led by companies in the space ... Google, Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ...
(Date:8/11/2015)... Today, ZUK announced its Android smartphone Z1, featuring FPC,s touch ... 2015 that relate to sales of FPC1155 for this smartphone model ... for 2015. Jörgen Lantto, CEO of FPC, comments: " ... manufacturer in China and we are proud ... for Z1 , its first ...
(Date:8/6/2015)... 6, 2015  Today, U.S. Congressman Mike ... ™ to learn firsthand how Silicon Valley technologies ... is a world leader in multi-factor identity management ... helping federal agencies and commercial organizations achieve new ... "The vast majority of network breaches can ...
Breaking Biology News(10 mins):Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2Rep. Honda to Visit Crossmatch in Redwood City 2
... in the adult brain is well known. It is what ... lateral ventricles. This is where neural or brain stem cells ... For many years now, the subventricular zone has been suspected ... gliomas, the most deadly type of which is glioblastoma. ...
... plants and animals alike. When cells are deprived of water, ... a medium, chemicals and enzymes inside the cells may malfunction. ... Polypodium polypodioides ), can survive extreme measures of water loss, ... do the cells in these desiccation-tolerant plants remain viable? ...
... release is available in Spanish . , ... project to fine-tune computer models that can indicate when ... The results will help pinpoint the effectiveness of trees ... temperatures and global climate change. ARS ...
Cached Biology News:Brain tumors: Tissue stem cell turning into tumor stem cell 2Bringing dehydrated plants 'back to life' 2Bringing dehydrated plants 'back to life' 3Model predicts shifts in carbon absorption by forest canopies 2