Navigation Links
Motor transport in bio-nano systems

two different ends, a 'plus' end and a 'minus' end. In Figure 1, the filaments are arranged in such a way that all 'plus' ends point into the same direction. Such an arrangement provides many parallel tracks for the molecular motors and, thus, represents a multi-lane highway in the nanoregime. Using such a biomimetic model system, scientists can study the transport properties in a quantitative manner, identify useful control parameters, and determine the functional dependence of the transport properties on these parameters. This is the only possible strategy to obtain the basic knowledge that is necessary to improve the system design and to optimize its performance.

We now have a basic understanding of the behavior of single motors. These motors are dimeric proteins with two legs, which make discrete steps along the filament. Each step corresponds to a motor displacement of about 10 nanometers, comparable to the size of its legs. In one second, the motor makes about 100 steps which leads to a velocity of about one micrometer per second. The absolute value of this velocity is not very impressive, but relative to its size, the motor molecule moves very fast: indeed, on the macroscopic scale, its movement would correspond to an athlete who runs 200 meters in one second! This is even more surprising if one realizes that the motor moves in a very viscous environment since it steadily undergoes many collisions with a large number of water molecules. Because of these collisions, the molecular motor has a finite run length: After a few seconds, it unbinds from its track and performs random Brownian motion in the surrounding water until it rebinds to the same or another filament.

In order to understand the motor traffic in biological cells and in biomimetic systems, it is necessary to go beyond the single motor level and consider the cooperative behavior of many motors. To obtain a large flux of cargo transport, it is obviously useful to let many motors work
'"/>

Source:Max-Planck-Gesellschaft


Page: 1 2 3 4

Related biology news :

1. Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows
2. Motorola researchers develop selective sensors based on carbon nanotubes
3. Motor protein plays key role in connecting neurons
4. Sea skate experiment sheds light on human cell transport
5. Green diesel: New process makes liquid transportation fuel from plants
6. Researchers discover way to transport environmental arsenic to plant leaves in new clean-up strategy
7. Mechanism for neurodenegerative diseases linked to transport proteins
8. New study reveals structure of E. coli multidrug transporter protein
9. High dopamine transporter levels not correlated with ADHD
10. New biofuels process promises to meet all US transportation needs
11. Navigable nanotransport
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Motor transport bio nano systems

(Date:12/14/2009)... Pa., Dec. 14 MODA Technology Partners, ... (EM), utility and product testing for the Pharmaceutical ... 3.0, the company,s third generation mobile data acquisition ... organizations to further automate their regulated manufacturing processes. ... capabilities: ,, Fully-Configurable Test Methods: ...
(Date:12/13/2009)... may help to engineer plants that take advantage of ... finding could help to engineer crops that take advantage ... carbon dioxide they need for photosynthesis through microscopic breathing ... molecule of the gas gained, they lose hundreds of ... tighten to save water when CO 2 is ...
(Date:12/13/2009)... New Haven, Conn.A team led by Yale University ... in whole blood for the first time. Their ... online publication of Nature Nanotechnology , could ... of cancer and other diseases. , ... Professor of Engineering & Applied Science, and Tarek ...
Breaking Biology News(10 mins):MODA Announces Availability of Third Generation Mobile Data Acquisition Platform 2Newly identified enzymes help plants sense elevated CO2 and could lead to water-wise crops 2Newly identified enzymes help plants sense elevated CO2 and could lead to water-wise crops 3Scientists use nanosensors for first time to measure cancer biomarkers in blood 2Internationally Renowned Bariatric and Laparoscopic Surgeons To Meet in San Diego 5767 1Internationally Renowned Bariatric and Laparoscopic Surgeons To Meet in San Diego 5767 2BioMarin to Present at the Oppenheimer Healthcare Conference 5764 1BioMarin to Present at the Oppenheimer Healthcare Conference 5764 2PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 1PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 2PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 3PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 4PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 5PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 6PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 7PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 8PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 9PAREXEL Reports First Quarter Fiscal Year 2010 Financial Results 5761 10
... new strategy developed in the Neonatal and Infant Feeding ... infants and other newborns with severe swallowing difficulties learn ... appearing in the February issue of the Journal ... Children,s were able to help 15 out of 20 ...
... N.C. Duke University Medical System researchers have discovered ... provide a new approach for future smoking-cessation products. ... Oliveira-Maia, M.D., Ph.D., a postdoctoral fellow of the Duke ... explore both the peripheral taste pathways activated by nicotine, ...
... NEW YORK The Damon Runyon Cancer Research ... researcher John Rinn, PhD, has been awarded a 2009 ... made to early-career researchers who are using "novel approaches ... member of the faculty at the Broad Institute in ...
Other Biology News:Crib-side studies help struggling newborns go home without feeding tubes 2Crib-side studies help struggling newborns go home without feeding tubes 3Nicotine activates more than just the brain's pleasure pathways 2BIDMC scientist John Rinn, Ph.D., receives Damon-Runyon Rachleff Innovation Award 2
(Date:12/11/2009)... - Oncolytics Biotech Inc. (TSX:ONC, NASDAQ: ONCY ) ... of Dr. Alan Warrander to the role of ... ,, "Dr. Warrander will be responsible for the ... said Dr. Brad Thompson, President and CEO of ... of a Phase 3 trial examining REOLYSIN in ...
(Date:12/10/2009)... Microban International, Ltd., the global ... partnered with Sharp Imaging and Information Company ... to incorporate it,s third generation silver-based antimicrobial ... into the calculator keys during manufacture, Microban ... of damaging bacteria on the keys. ...
(Date:12/10/2009)... NEW YORK, Dec. 10 With the economy ... Company, Wall Street,s largest, fastest-growing small cap equity research ... of unique investment opportunities within the micro cap market ... on January 11, 2010 at the Grand Hyatt ... cap companies are overlooked and undervalued by much of ...
(Date:12/10/2009)... flow measurement, control, and level solutions, announced that ... Level Product Manager effective November 30, 2009. He ... penetration of the level measurement products around the ... Corp, a manufacturer of building materials, where he ... will report to Brooks Instrument Vice President Tim ...
Breaking Biology Technology:Oncolytics Biotech(R) Inc. Appoints Senior Vice President, Global Licensing and Business Development 2Oncolytics Biotech(R) Inc. Appoints Senior Vice President, Global Licensing and Business Development 3Microban Signs Exclusive Agreement with Sharp Electronics to Launch Calculators with New Microban(R) 3G Silver(TM) Antimicrobial Technology 2Technology, Biotech, Energy and Transportation Among the Industries to be Featured at Sidoti & Company's First Annual 2010 Micro Cap Conference 2Brooks Instrument Appoints Mike Bayda as Global Level Product Manager 2Brooks Instrument Appoints Mike Bayda as Global Level Product Manager 3
... webcast: , , What: Abbott,s exercise of its ... a subsidiary of Isis. Total acquisition price will be, ... December 17, 2008 at 8:30 a.m. ET / 5:30 a.m. PT, Where: ... Simply log onto our Web site listed, ...
... line with Jatropha World Asia 2009, scheduled 16-17 ... of interviews with top Jatropha decision makers have ... and answer session was held with Pradip Bhar, ... Magor Biofuel Limited. Offered by free download, this ...
... ... (PRWEB) December 17, 2008 -- Facilitating the entry of ... protocol analyzer, now updated to effortlessly examine not only the wireless ... modem, but also the interface between the device CPU and the ...
Other Biology Technology:Webcast Alert: Isis Pharmaceuticals Announces That Abbott Exercised Its Option to Acquire Ibis Biosciences 2Jatropha World 2009 Advance Access: Surprisingly Candid Interview Series Examines Biofuel Predictions Compared to Fossil Fuels 2Jatropha World 2009 Advance Access: Surprisingly Candid Interview Series Examines Biofuel Predictions Compared to Fossil Fuels 3Jatropha World 2009 Advance Access: Surprisingly Candid Interview Series Examines Biofuel Predictions Compared to Fossil Fuels 4Newly Available To Medical Device Manufacturers - Bluetooth Testing Equipment 2Newly Available To Medical Device Manufacturers - Bluetooth Testing Equipment 3
Consists of 4 separate 100mM solutions (ATP,GTP,CTP and UTP pH 7.5) as sodium salts. 98% Pure by HPLC...
Collected from sexually mature, mixed sex, mixed breed cats. Physiochemical constituents are measured to ensure lot-to-lot consistency....
Tracker Datamatrix TRxD reads any 1D and 2D barcodes within 0.5 seconds....
Donor feline serum and plasma...
Biology Products: