Navigation Links
Similar Stem Cells In Insect And Human Gut

Looking through his handmade microscope in 1702, it was Anton van Leeuwenhoek who first described the workings of a nano machine. He observed the rapid contraction of a stalk tethering the cell body of a tiny protozoan, Vorticella convallaria, to the surface of a leaf. Little did van Leeuwenhoek imagine that more than 300 years later, the biological spring that drives Vorticella would set records for speed and power in the nano world of cellular engines.

It might also power future generations of nano devices and materials, according to biological engineer Danielle Cook France and colleagues at MIT, the Whitehead Institute, the Marine Biological Laboratory, and the University of Illinois, Chicago. France presented her findings Sunday at the 45th Annual Meeting of the American Society for Cell Biology in San Francisco.

The spring in the unicellular Vorticella is a contractile fiber bundle, called the spasmoneme, which runs the length of the stalk. At rest, the stalk is elongated like a stretched telephone cord. When it contracts, the spasmoneme winds back in a flash, forming a tight coil. To find out how fast and how hard Vorticella recoils, France and colleagues used modern microscopes and tools to measure the force and speed of the spring. This is one powerful engine, France reports. The spasmoneme's contraction is measured in nano-newtons of force and centimeters/second of speed in a biological world where the ruler markings are usually in tiny pico-newtons and micrometers/second. Gram for gram, the power of the spasmoneme engine outperforms human muscles and car engines.

It also runs on a different fuel. Molecular motors that power muscle contraction, for example, use ATP molecules for energy. The spasmoneme runs on calcium, but its drive mechanism was poorly understood until France and colleagues got under the nano hood. Like van Leeuwenhoek, the researchers studied Vorticella under the microscope but they also had specialized biochemical
'"/>

Source:


Page: 1 2

Related biology news :

1. Jump-starting T Cells In Skin Cancer
2. Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs
3. Transplantation Of Monkey Embryonic Stem Cells Reverses Parkinson Disease In Primates
4. Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery
5. Weill Cornell Research Reveals Secrets Of Trafficking Within Cells
6. First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers
7. Placenta Is A Rich Source Of Blood Stem Cells
8. UCSD Discovery Shows How Embryonic Stem Cells Perform Quality Control Inspections
9. Estrogen-like Component of Plastic Stimulates Growth of Certain Prostate Cancer Cells
10. Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis
11. Infants With Rare Genetic Disease Saved by Cord Blood Stem Cells
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Similar Stem Cells Insect And Human Gut

(Date:11/21/2014)... 2014   Atmel® Corporation (NASDAQ: ... touch technology solutions, today launched the industry,s first family ... widest V cc range from 1.7V to 5.5V. ... I 2 C bus communication speeds, and are available ... them ideal for consumer, industrial, computer, and medical applications. ...
(Date:11/18/2014)... , Nov. 18, 2014   EyeLock Inc. ... solutions, and MorphoTrust USA (Safran), a ... today announced a strategic partnership to offer comprehensive ... vehicle administration (MVA), airport screening and financial services ... solutions, MorphoTrust serves consumers through a nationwide network ...
(Date:11/10/2014)... store shelves in early 2010, and people have used ... can be tossed into a washing machine without ever ... convenience, though, has come with risks for young children. ... Hospital found that from 2012 through 2013, U.S. poison ... 6 years of age swallowing, inhaling, or otherwise being ...
Breaking Biology News(10 mins):Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3Study finds laundry detergent pods, serious poisoning risk for children 2
... of ice, a minimally invasive interventional radiology treatment called ... damage, according to data being presented at the Society ... Orleans. "Cryoneurolysis could have big implications for the ... be unbearable and is very difficult to treat," said ...
... WEST ORANGE, N.J.The State of Spinal Cord Injury: Latest ... Recovery will be held on Wednesday, April 17, 2013, ... Pleasant Valley Way, West Orange, N.J. This special Grand ... Cord Injury System (NNJSCIS) and the Spinal Cord Injury ...
... have revealed the mechanism that causes a slime to ... antibiotics. When under threat, some bacteria can shield ... biofilm. It is made up of communities of bacteria ... cause dental plaque and sinusitis; in healthcare, biofilms can ...
Cached Biology News:Freezing nerves knocks pain out cold 2The State of Spinal Cord Injury Grand Rounds 2Secrets of bacterial slime revealed 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... (Amex: ETC ) ("ETC" or the "Company") ... two BARA-MED(R) XD,Monoplace Hyperbaric Chambers at Christus Spohn, ... Christi, Texas, in 1905 and is,the largest and ... The,facility offers South Texans a full range of ...
... SAN DIEGO, Sept. 23 Halozyme Therapeutics,Inc. (Nasdaq: ... products targeting the extracellular matrix, today,announced that Douglas ... Vice,President, Endocrinology Clinical Development., "I am thrilled ... caliber,and achievement to the Halozyme leadership team. He ...
... Development of Novel Infectious ... Disease Diagnostic Platform -, WOBURN, ... a $4.5 million equity investment from BD (Becton, Dickinson,and Company) ... development of a novel infectious disease diagnostic,platform. The collaboration will ...
Cached Biology Technology:Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 2Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 3Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 2Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 3Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 4U.S. Genomics Inc. Receives $4.5 Million Investment from BD 2U.S. Genomics Inc. Receives $4.5 Million Investment from BD 3
384 Cluster Tube Racks...
The antibody recognizes the peptide sequence ESESQGPK (aa 441-448) of human class III beta-tubulin specific for neurones....
... Partially purified chicken intestinal cytoplasmic 1,25-(OH)2D3 ... receptor (VDR) from human, rat, mouse, ... This antibody does not cross-react ... MA1-710 detects both the occupied and ...
... compact, highly versatile power supply. Capable of producing ... power supply is ideal for PAGE, SDS-PAGE, DNA ... types of small format transfer apparatus. It is ... current with a continuously variable output in either ...
Biology Products: