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:4/23/2014)... other chronic inflammatory disorders among people of lower socioeconomic ... exposure to the microbes that thrive in rural environments, ... published in the journal Clinical & Experimental Immunology ... have less access to green spaces may be more ... immune system dysfunction. , When our immune systems are ...
(Date:4/23/2014)... most in their mid-thirties and forties, face a ... within two decades. "Mutant" protein clusters, long blamed ... been the primary focus of therapies in development ... from Prof. Gerardo Lederkremer and Dr. Julia Leitman ... and Immunology, in collaboration with Prof. Ulrich Hartl ...
(Date:4/23/2014)... Valley, NY. (Apr. 23, 2014) People who have ... potential to restore neurological function. However, a study conducted ... issue of Cell Transplantation , but is currently ... http://www.ingentaconnect.com/content/cog/ct/pre-prints/content-ct1168Chen , has found that when one group ... cells (PBSCs) injected directly into the brain and a ...
Breaking Biology News(10 mins):Rural microbes could boost city dwellers' health 2Rural microbes could boost city dwellers' health 3On the defensive 2On the defensive 3Autologous stem cell therapy improves motor function in chronic stroke victims 2
... relocation of an Inuit village already underway, some 400 ... in Alaska for a UN-affiliated conference April 20-24 to ... to both mitigate and adapt to climate change. ... Global Summit on Climate Change is also designed to ...
... Biology 2009 meeting in New Orleans, Dr. Kristine ... Control Technologies Branch of the Health Effects Laboratory ... results from the first study to directly link ... with exposure to different vibration frequencies with biological ...
... grew warmer from 18,700 to 10,000 years ago, juniper trees ... of their favorite food. Now, University of Utah biologists have ... eat toxic creosote bushes that replaced juniper. "It was ... Dearing, senior author of the study, published online Tuesday, April ...
Cached Biology News:Indigenous peoples at world summit to share climate change observations, coping techniques 2Indigenous peoples at world summit to share climate change observations, coping techniques 3Indigenous peoples at world summit to share climate change observations, coping techniques 4Indigenous peoples at world summit to share climate change observations, coping techniques 5Indigenous peoples at world summit to share climate change observations, coping techniques 6Risk of vibration-induced vascular injuries linked to vibration frequency differences 2Poison: It's what's for dinner 2Poison: It's what's for dinner 3Poison: It's what's for dinner 4Poison: It's what's for dinner 5
(Date:1/15/2014)... (PRWEB) January 15, 2014 2013 was ... Scottsdale’s Brain State Technologies®. They saw continued independent research ... Center who were awarded a $1 million grant from ... in “Brain and Behavior” a peer reviewed journal, Amy ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 Date: ... p.m. , Location: Warrington Country Club, 1360 Almshouse Road, Warrington, ... only national nonprofit organization solely dedicated to finding a cure ... those affected worldwide, will host its annual Crystal Ball on ...
(Date:1/14/2014)... As pet owners drew up their lists of New Year,s ... better care of my furry companion." Nowadays there are pet salons, ... cases to take the little canine or feline darlings along wherever ... buy some pricey toys at the pet store. But anyone who ...
(Date:1/14/2014)... iLab Solutions, the leader in core facility management ... Product Strategy. In this role, Michelle will work with current ... in the development of iLab products. Her main goal will ... to the scientific community by offering the most advanced, user-friendly, ...
Breaking Biology Technology:Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2
... - GeneNews Limited (TSX: GEN), a company focused on ... diseases and personalized health management, today announced that it ... being held at the Sheraton Centre in Toronto from ... booth # 400, will feature the Company,s lead product, ...
... and CAMBRIDGE, England, November 26 Sosei,Group Corporation ("Sosei"; ... it has out-licensed its IP and Know How,relating to ... a,Cambridge, UK based pharma company, for the treatment and ... Mefloquine is a highly efficacious anti-malarial drug that is ...
... CAS REGISTRY, the world,s most,authoritative collection of disclosed chemical ... CAS Registry Number(R),1073662-18-6 recently was assigned to an azulenobenzofuran ... http://www.newscom.com/cgi-bin/prnh/20081125/CLTU095 ) , ... The 40 millionth substance ...
Cached Biology Technology:GeneNews to exhibit ColonSentry(TM) at Family Medicine Forum 2008 2Sosei Announces the Out-licensing of RS(+) Mefloquine to Treague Ltd for the Treatment and Prophylaxis of Malaria 2CAS Registers 40 Millionth Substance in CAS REGISTRY(SM) 2
... HistoMark Biotin Streptavidin-HRP Systems provide ... and intracellular antigens in frozen or ... These systems also facilitate double ... can be performed simultaneously with primary ...
...
... Polystyrene covers can be used ... Ridged covers for stacking of ... covers for use with automated ... ridged and non-ridged, are available ...
... Versatile, modular, computer controlled pre-amplifier suitable for ... isolated electrode input for recording physiological signal ... and a transducer input for use with ... transducers. Additional options include a stimulus artefact ...
Biology Products: