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:7/24/2014)... 24, 2014 Your cell phone ... modeling lithium-ion battery storage capacity. , New research ... theoretical model created at Lawrence Livermore National ... predicts how carbon components will perform as electrodes. ... the urgent need for higher-performance batteries. Several key ...
(Date:7/24/2014)... , July 24, 2014  Neogen Corporation (Nasdaq: ... future forecasts of its potential revenue from new rodenticide ... to investors and analysts on July 22, 2014, Neogen,s ... analysts regarding this research. "It was my ... about the potential of a new type of rodenticide, ...
(Date:7/24/2014)... BETHESDA, Md. , July 24, 2014  Spherix ... to the fostering and monetization of intellectual property, today ... for the period ending June 30, 2014 on Monday, ... conference call at 10 a.m. ET on Monday, August ... to be led by the company,s CEO, Anthony ...
(Date:7/23/2014)... Emirates (UAE) (PRWEB) July 23, 2014 ... recently announced that its biobanking project, Provia ... Ph.D. to its growing Advisory Board. Scott Wolf ... pleased to have Dr. Vaught onboard with Provia’s ever-expanding ... and expertise that Provia’s management team brings to this ...
Breaking Biology Technology:Getting More Life out of Lithium-ion Batteries 2Neogen comments on SenesTech 2Spherix Schedules Shareholder Update Call 2Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 2Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 3Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 4
... YORK, June 8, 2011 Reportlinker.com announces ... available in its catalogue: ... http://www.reportlinker.com/p0548785/Future-of-White-Biotechnology-in-China.html?utm_source=prnewswire&utm_medium=pr&utm_campaign=NoCategory ... referred to the third wave in biotechnology, ...
... 7, 2011 Vaxart, Inc., a San Francisco biotechnology company ... I clinical trial. This is the first clinical study evaluating ... The trial site is in the United States. ... is demonstrated with one vaccine, we can expect that later ...
... 7, 2011 Infrared Systems International (OTCBB: IFRS) is pleased ... pilot study of its NatuRx™ HIV/AIDS treatment and will push ... AquaLiv concluded a pilot study with two HIV/AIDS patients ... of the first reported AIDS victims on June 5th, 1981. ...
Cached Biology Technology:Reportlinker Adds Future of White Biotechnology in China 2Reportlinker Adds Future of White Biotechnology in China 3Reportlinker Adds Future of White Biotechnology in China 4Reportlinker Adds Future of White Biotechnology in China 5Vaxart Begins First Oral Vaccine Clinical Trial 2Infrared Systems International's Subsidiary, AquaLiv, Inc., Strives to Be a Game Changer in Fight Against HIV/AIDS 2Infrared Systems International's Subsidiary, AquaLiv, Inc., Strives to Be a Game Changer in Fight Against HIV/AIDS 3
(Date:7/24/2014)... brewery has its own microbial terroir, meaning the microbial ... found in the product, creating the final flavor according ... Applied and Environmental Microbiology . This is the ... a sake brewery. , Many sake makers inoculate ... A. Mills of the University of California, Davis, but ...
(Date:7/24/2014)... cleanup experts gathered at NJIT this week for an ... the U.S. Environmental Protection Agency (EPA) to dredge toxic ... River. , The EPA has called the plan, which ... and capping sections of the riverbed, one of the ... would be dredged and disposed off-site. , "We need ...
(Date:7/24/2014)... research into the potato genes that best adapt to ... in rainfall and increased extremes of hot and cold ... in order to create new potato varieties that will ... seeking to find out how the current potato varieties ... higher and lower temperatures. , This research is part ...
Breaking Biology News(10 mins):The microbes make the sake brewery 2Experts Weigh the Pros and Cons of a $1.7 Billion EPA Cleanup Plan for the Passaic River at an NJIT 2Neiker-Tecnalia is researching the potato genes that best adapt to climate change 2
... Mich.---By mimicking the structure of the silk moth,s antenna, ... better nanopore---a tiny tunnel-shaped tool that could advance understanding ... A paper on the work is newly published ... headed by Michael Mayer, an associate professor in the ...
... developed by researchers in Temple University,s College of Science ... cancer. The leptin receptor antagonist peptide, developed by ... attractive option for triple negative breast cancer treatment, especially ... their findings online in the European Journal of ...
... environmental researchers from across North America have been ... Based at Stanford University,s Woods Institute for the ... 1998 to help academic scientists make their knowledge ... program selects up to 20 mid-career academic environmental ...
Cached Biology News:Silk moth's antenna inspires new nanotech tool with applications in Alzheimer's research 2New peptide could be effective treatment for triple negative breast cancer 220 researchers selected as 2011 Leopold Leadership Fellows 220 researchers selected as 2011 Leopold Leadership Fellows 320 researchers selected as 2011 Leopold Leadership Fellows 4
The S. cerevisiae Hansen strains are the parental yeast strains from which the deletions were derived....
The DNA DipStick Kit is ideal for estimating nucleic acid concentrations and approximate yields. Works with ss- and ds-DNA, RNA, and oligonucleotides at concentrations as low as 0.1 ng/l....
... electronic from BRAND adds ergonomics and ... the only electronic, motor-driven repeating pipette ... including BRAND PD-Tip syringe tips, Eppendorf ... Tips,and VWRbrand Combi-Syringes. Select virtually any ...
The pYES2 vector is designed for native expression of your protein of interest in S. cerevisiae. It contains the URA3 gene for selection in yeast and 2 origin for high-copy maintenance....
Biology Products: