Navigation Links
Walking molecule now carries packages

A research team, led by UC Riverside's Ludwig Bartels, was the first to design a molecule that can move in a straight line on a flat surface. Now this team has found a way to attach cargo: two CO2 molecules, making the nano-walker a molecule carrier.

The work will be published Thursday, Jan. 18 in "Science Express" and later in the print-version of the journal "Science."

"This is an unprecedented step forward towards the realization of molecular-scale machinery," said Bartels, associate professor of chemistry and a member of UCR's Center for Nanoscale Science and Engineering. "Our experiments show a means to transport molecules reliably. This will become as important to the molecular machinery of the future as trucks and conveyor belts are for factories of today."

The last paper Bartels and his team published on this subject generated a great deal of interest. It was included in the American Institute of Physics "Top 25 Physics Stories for 2005." The new molecule carrier runs on a copper surface. It can pick up and release up to two carbon dioxide (CO2) molecules and carry them along its straight path.

"Carrying a load slows the molecule down" explained Bartels. "Attachment of one CO2 molecule makes the carrier need twice as much energy for a step, and a carrier with two CO2s requires roughly three times the energy. This is not unlike a human being carrying heavy loads in one or both hands." Bartels explained that using machines at the scale of single molecules will ultimate be the most efficient way to build objects or to deliver material.

"It resembles the way nature does it: the molecule carrier transports carbon dioxide across a surface," he said. "In the human body, the molecule hemoglobin carries oxygen from and carbon dioxide to the lungs, thereby allowing us to breathe ?and to live."

Bartels cautions, however, that this research is still in its infancy. "In 2005 we invented the molecular walker, whi
'"/>

Source:University of California - Riverside


Page: 1 2

Related biology news :

1. Walking not enough for significant exercise benefits
2. Chemists create Superbowl molecule; May lead to better health
3. Key molecule in plant photo-protection identified
4. Inflammatory molecules released by pollen trigger allergies
5. Researchers discover molecule that causes secondary stroke
6. Yale researchers identify molecule for detecting parasitic infection in humans
7. Scientists identify molecule that regulates well-known tumor suppressor
8. Medical molecules designed to respond to visible light that can penetrate tissue
9. Researchers find promising cancer-fighting power of synthetic cell-signaling molecule
10. Chemists synthesize molecule that helps body battle cancers, malaria
11. DNA constraints control structure of attached macromolecules
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Walking molecule now carries packages

(Date:9/15/2014)... from digestion to disease resistance. Despite the fact that ... the planet, more is known about belly-button bacteria than ... colleagues working on Panama,s Barro Colorado Island discovered that ... to more than 400 different kinds of bacteria. The ... 7,000 different kinds. , Bacteria in tropical forests may ...
(Date:9/15/2014)... 2014) The so-called central dogma of molecular ... provided a simplified explanation for how genetic information ... , In reality, of course, the process is ... nearly 60 years ago by Nobel Laureate Francis ... one, there are multiple types of RNA, three ...
(Date:9/15/2014)... study indicates that lowland tapir populations may continue to ... Researchers from the Office National de la Chasse ... San Diego Zoo Global reviewed data retrieved from camera ... four years and compared this data to current harvest ... on hunting tapirs in French Guiana," said Matthias Tobler, ...
Breaking Biology News(10 mins):Smithsonian scientists discover tropical tree microbiome in Panama 2Scientists discover RNA modifications in some unexpected places 2
... Ireland Cancer Center of University Hospitals Case Medical Center ... breast cancers express the MUC-1 target. This first-of-its-kind finding, ... has paved the way for an upcoming vaccine trial ... that could potentially prevent recurrence of this aggressive type ...
... from the effects of acid rain, as wet weather counteracts ... The research, by Professor Steve Ormerod and Dr Isabelle Durance ... year period around Llyn Brianne in mid-Wales. Their findings are ... of Applied Ecology . Carried out in 14 streams, ...
... PULLAUP, WA This Christmas season, think twice about ... Christmas tree. The good, old-fashioned methodkeeping your tree in ... to keep your tree green and healthy. Researchers have ... Christmas trees; in fact, in several cases the chemical ...
Cached Biology News:Ireland Cancer Center researcher finds most triple-negative breast cancers express muc-1 target 2Climate-change set-back for acidified rivers 2Flame retardants prove ineffective on fresh-cut Christmas trees 2
(Date:9/16/2014)... (PRWEB) September 16, 2014 According to ... Toronto affiliate of ITRA Global, new development in Downtown ... Toronto city council approving another 755 storeys of new ... appears construction cranes will be dominating the Toronto skyline ... to have an unquenchable thirst for new development. , ...
(Date:9/16/2014)... (PRWEB) September 16, 2014 RENU 28, the ... molecules, became available for purchase in Australia and New ... nationwide tour beginning September 16th. The tour will make stops ... 17th, Bundaberg on the 18th, Sydney on the 20th, and ... in Australia and New Zealand and to educate people about ...
(Date:9/15/2014)... UPTON, NYHeat drives classical phase transitionsthink solid, ... happen when the temperature drops. If phase ... where quantum mechanics reigns, subtle fluctuations can ... from the U.S. Department of Energy,s Brookhaven ... explored this frigid landscape of absolute zero ...
(Date:9/15/2014)... Sept. 15, 2014   Global Science & ... scientific products and services for satellite and weather ... for Integrated Services (OASIS) from the General Services ... selected to provide the government best-value solutions for ... (SB) category in Pool 4. The OASIS SB ...
Breaking Biology Technology:ITRA Global Reports Downtown Toronto Real Estate Development is in High Gear 2ITRA Global Reports Downtown Toronto Real Estate Development is in High Gear 3Global Wellness Company Hosts ASEA Australia Tour September 16-22 2Elusive quantum transformations found near absolute zero 2Elusive quantum transformations found near absolute zero 3Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 3
... N.J., May 30, 2012  Today, leading events organizer ... to showcase the latest developments and opportunities across a ... by the same team as InformexUSA, North America,s leading ... chemistry, and managed in conjunction with the UBM team ...
... California Institute for Nursing & Health Care (CINHC) released ... pilot New Graduate Nurse Transition to Practice Programs (RN ... San Francisco, found that the programs are making a ... graduates and increasing their employment opportunities in hospitals and ...
... 2012 Sequenom, Inc. (NASDAQ: SQNM ), a ... the Company,s participation at the Jefferies 2012 Global Healthcare Conference ... 4-7, 2012. Harry F. Hixson, Jr., Ph.D., ... beginning at 11:00 a.m. ET, to provide an overview of ...
Cached Biology Technology:Informex Returns To India In 2012 2Informex Returns To India In 2012 3Study Shows Transition to Practice Programs Get Nurses Employed 2
... locus encodes two unrelated proteins both of ... the cell cycle in a p53-dependent manner. ... rapid degradation of mdm2 proteinrequired for mdm2 ... This interaction is mediated by the ...
human Exodus-2 Research Focus: cytokine/growth factor Storage Temperature: -20C Shipping Temperature: 4C...
...
Gel Loading Buffer contains a precipitant to ensure that the samples sink into the wells and a tracking dye to allow the user to follow the progress of electrophoresis....
Biology Products: