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:12/19/2014)... Tigard, OR and Hershey, PA (PRWEB) December 19, ... (OTC Pink: BJCT), a leading developer and manufacturer ... has entered into an agreement with Immunomic Therapeutics, ... Bioject’s Biojector®-2000 needle-free injection device with its LAMP™ ... receives an option for an exclusive Worldwide license ...
(Date:12/19/2014)... MA (PRWEB) December 19, 2014 Charm ... MRLAFMQ test for the Detection of Aflatoxin M1 in ... to receive independent third party validation. The peer reviewed ... Unit of the Institute for Agricultural and Fisheries Research ... Group. , Aflatoxin B1, the most toxic aflatoxin ...
(Date:12/19/2014)... 19, 2014 BioPlus Specialty Pharmacy ... announces the promotion of Nick Maroulis, Pharm.D. to the ... Services. , In this position, Dr. Maroulis will ... managing the directors of our multi-site pharmacies as the ... 1997 and during that time he has served in ...
(Date:12/19/2014)... Ill. , Dec. 19, 2014 Naurex ... develop novel drugs for diseases of the central nervous ... president and chief executive officer, will present at the ... Riedel,s presentation will take place at 3:00 p.m. PST ... Francis in San Francisco, Calif. ...
Breaking Biology Technology:Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2
... Beckman Coulter,Inc. (NYSE: BEC ), a ... automate, and innovate complex biomedical testing,announced today that ... Business Development, will present at the following,conferences:, ... -- Bank of America 2008 Healthcare Conference on ...
... in physician,s office -, MADISON, N.J., May ... Diagnostics Incorporated (NYSE: DGX ),today announced the ... fecal,immunochemical test, a point-of-care version of the company,s ... sensitivity and,specificity of the laboratory-based InSure FIT test., ...
... CE Mark Approval for First Product, the CorMatrix ... ECM(TM) for Pericardial ... based company dedicated to developing and delivering unique,extracellular matrix (ECM(TM)) ... cardiovascular tissue, announced,today that the company has received 510(k) clearance ...
Cached Biology Technology:Beckman Coulter to Present at Upcoming Healthcare Conferences 2Enterix Inc. Launches Its Point-of-Care Test for Colorectal Cancer Screening 2Enterix Inc. Launches Its Point-of-Care Test for Colorectal Cancer Screening 3Enterix Inc. Launches Its Point-of-Care Test for Colorectal Cancer Screening 4Enterix Inc. Launches Its Point-of-Care Test for Colorectal Cancer Screening 5CorMatrix(R) Announces FDA 510(k) for Novel Biomaterial Implant for Intracardiac Repair 2CorMatrix(R) Announces FDA 510(k) for Novel Biomaterial Implant for Intracardiac Repair 3CorMatrix(R) Announces FDA 510(k) for Novel Biomaterial Implant for Intracardiac Repair 4
(Date:12/17/2014)... Va. , Dec. 15, 2014 ... to make it easier to detect and prevent ... Today the agency started performing an ... capability will validate the authenticity of purchased microcircuits ... The new quality control measures will be conducted ...
(Date:12/17/2014)... , Dec. 16, 2014  Automation is ... this more evident than at international borders. Over ... document scanners have allowed veteran travelers to self ... Passport Control (APC) Kiosks at an increasing number ... globe. According to Maxine ...
(Date:12/11/2014)... WINSTON SALEM, N.C. , Dec. 10, 2014  That ... known for quite a while. Hypertension – the medical term ... disease in the early 1800s, and the inflatable cuff that,s ... That doesn,t, however, mean there,s nothing new about hypertension, ... punctured some long-held beliefs about the condition and the best ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4
... of funding-- dollars drop, in this particular case, for ... faculty and staff. Those declines ultimately impact student ... "Obviously if you,ve had a 30% reduction in funding, ... budget. And so programs are affected," says Colorado ...
... − A new study from the Infant Brain Imaging ... Research at the Children,s Hospital of Philadelphia (CHOP), found ... months in high-risk infants who later develop autism, compared ... "It,s a tremendously exciting finding," said Sarah Paterson, PhD, ...
... SEATTLE Evolutionary biologist Harmit Singh Malik, Ph.D., of ... grant from the Lupus Research Institute to study the ... lupus, an autoimmune disease. , Malik and colleagues want ... causes lupus autoimmunity., "We want to determine whether autoimmunity ...
Cached Biology News:New autism research reveals brain differences at 6 months in infants who develop autism 2Did an evolutionary arms race cause lupus? Biologist Harmit Malik receives grant to try and find out 2
Rabbit polyclonal to Shigella Immunogen: Mixture of S. boydii, S. flexneri & S. dysenteriae....
... instrument engineered to match the speed of ... of research centers worldwide. It uses 1.5 ... ideally suited for high-speed temperature cycling due ... surface-area-to-volume ratio. ,By combining glass capillary tubes ...
... CUL-3 is a member of the family of human ... homologous to the S. cerevisiae cdc53 gene. Cullin-3 is ... It forms a tight complex with cyclin E and ... by protesomes. Cyclin E is an activator of cdk2, ...
Yellow oily liquid. Contains 85% Drakeol 5NF, 15% Arlacel A (mannide monooleate emulsifier). Heat sterilized. Contains zero colony forming units/ml. ...
Biology Products: