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:8/28/2014)... his collaborators have developed an online analytic tool that ... cells for biomedical investigation. CellNet is a free-use Internet ... cell engineering. Details of CellNet and its application to ... in the journal Cell . , "This free ... types of cell-based investigations and can potentially offer help ...
(Date:8/28/2014)... 2014  Privacy Advocate and Senior Staff Attorney at ... joins the lineup of biometric and mobile commerce experts ... Executive Summit in Tampa, Florida ... speakers include Steven Rahman, Director, Technology and Strategy at Samsung, ... The theme of this year,s event is Mobility at ...
(Date:8/28/2014)... August 28, 2014 Dyslexia, the most commonly ... a neurological reading disability that occurs when the ... don,t function normally. , The use of non-invasive ... activity is disrupted in dyslexia. However, most prior ... of brain regions, leaving a gap in our ...
Breaking Biology News(10 mins):New tool aids stem cell engineering for medical research 2Biometrics UnPlugged Welcomes the Electronic Frontier Foundation's Jennifer Lynch to the Mobility at the Crossroads of Commerce and Privacy Summit 2Dyslexic readers have disrupted network connections in the brain 2
... have found that two genes already known to control ... They report their findings in the April issue of ... genes are required for a dividing cell's halves to ... be helpful in stopping the uncontrolled cell division found ...
... inflammation is linked to the development of certain ... premalignancy are not well understood. A new research ... Cell identifies B lymphocytes as important regulators of ... that drugs targeted against B lymphocytes or recruitment ...
... from Columbia University Medical Center have shown that a ... arteries during a heart attack does not improve patient ... commonly and successfully used during angioplasty in vein grafts ... the March 2 issue of the Journal of the ...
Cached Biology News:Pair of cancer genes found to drive both cell migration and division 2B cells are required for development of epithelial cancer associated with chronic inflammation 2Columbia study shows widely used artery clearing device does not help patients during heart attack 2
(Date:8/28/2014)... (PRWEB) August 27, 2014 Scientists, researchers, ... for SPIE Laser Damage 2014 symposium. Marking ... for high-power lasers will run 14-17 September. The event ... optics and photonics . , The premier conference for ... laser damage to optical materials will engage researchers and ...
(Date:8/28/2014)... San Diego, CA (PRWEB) August 28, 2014 ... products, Pipette.com is offering a promotion for ... enables Pipette.com customers to purchase the highest quality ... Centrifuge Tubes are ideal for customers doing chemical, ... benefit lab technicians who are not regularly able ...
(Date:8/27/2014)... 2014 Rhythm, a biopharmaceutical company developing peptide ... result in metabolic disorders, announced today that it has ... U.S. Securities and Exchange Commission (SEC) relating to the ... stock. The number of shares to be offered and ... been determined. Citigroup and Cowen and Company ...
(Date:8/27/2014)... of nature,s mysteries is how plants survive impact ... the sun,s rays, while using this energy for ... in the plant,s blades quickly dissipate the energy ... quakes. Researchers at DTU Physics have now managed ... algae and bacteria contain light-absorbing proteins which play ...
Breaking Biology Technology:Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 3Eppendorf Safe Lock Centrifuge Tube Promotion Now Available at Major Pipette Distributor Pipette.com 2Eppendorf Safe Lock Centrifuge Tube Promotion Now Available at Major Pipette Distributor Pipette.com 3Rhythm Files Registration Statement for Proposed Initial Public Offering 2DTU researchers film protein quake for the first time 2
... SAN DIEGO , April 22 Neurocrine Biosciences, Inc. (Nasdaq: ... 2010 financial results after the Nasdaq market closes on Wednesday, April 28, ... discuss its financial results and provide a Company update Thursday morning, April ... Pacific Time ). , , , ...
... 22 As evidence of its drive to ... activity, Smith & Nephew ( SNN, LSE: SN) Orthopaedics ... its VERILAST technology for knee replacement implants. After simulating ... knee replacement, VERILAST technology produced an 81-percent reduction* in ...
... , April 22 PDL BioPharma, Inc. (PDL) (Nasdaq: PDLI ) today ... 29 at 4:30 p.m. Eastern Time to discuss its financial results for ... quarter financial results after market close. , , ... , , , ...
Cached Biology Technology:Neurocrine Biosciences Announces Conference Call and Webcast to Present First Quarter 2010 Financial Results 2Smith & Nephew Receives FDA 510k Clearance for a 30-year Knee 2Smith & Nephew Receives FDA 510k Clearance for a 30-year Knee 3Smith & Nephew Receives FDA 510k Clearance for a 30-year Knee 4Smith & Nephew Receives FDA 510k Clearance for a 30-year Knee 5PDL BioPharma to Announce First Quarter 2010 Financial Results and Hold Conference Call on April 29, 2010 2
... AVOID FREEZE/THAW CYCLES. An assay kit designed ... Western blotting. PARP is an enzyme implicated ... apoptosis, PARP is cleaved by caspase-3. Cleavage ... to 85 kDa is a hallmark of ...
... These handy dispensers save ... glasses, wipers, hats, and other ... benchtop storage bins for small ... and manufacturing. Clear acrylic. Many ...
... handy dispensers save space and ... hats, and other garb. They ... bins for small parts used ... Clear acrylic. Open-slot design for ...
... to the maintenance of appropriate levels ... important and diverse as those involved ... stress response, antigen presentation, modulation of ... cell cycle regulation, transcription, and signalling ...
Biology Products: