Navigation Links
Are U.S. Flu Death Figures More PR Than Science?

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. New Estimates For The Causes Of Child Deaths Worldwide
2. Measles Deaths Worldwide Drop By Nearly 40% Over Five Years
3. Morphine for Chest Pain Increases Death Risk
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Are Flu Death Figures More Than Science

(Date:6/17/2015)... PALM BEACH GARDENS, Fla. , June 17, ... identity management solutions, today announced that its U.are.U ... by Togo,s Eateries, Inc., ... based fast casual sandwich chain, to increase security, ... (POS). The Crossmatch fingerprint readers enable instant, non-repudiable identity ...
(Date:6/15/2015)... According to a new market research report ... Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) ... Natural Language Processing Market is expected to grow to ... forecast period 2015-2020. Browse 65 market ...   through 155 P ages and in-depth TOC ...
(Date:6/10/2015)... , June 10, 2015 ... Sensor Market by Technology (Ultrasound, TOF, Structured Light, ... Electronics, Entertainment, Automotive) and by Geography - Trends ... MarketsandMarkets, the market is expected to reach $3,319.71 ... 25.51% between 2015 and 2020. Browse ...
Breaking Biology News(10 mins):Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3Natural Language Processing Market Worth $13.4 Billion by 2020 2Natural Language Processing Market Worth $13.4 Billion by 2020 3Natural Language Processing Market Worth $13.4 Billion by 2020 4Natural Language Processing Market Worth $13.4 Billion by 2020 53D Sensor Market Worth $3,319.71 Million by 2020 23D Sensor Market Worth $3,319.71 Million by 2020 33D Sensor Market Worth $3,319.71 Million by 2020 4
... , This release is available in German ... now be produced inexpensively and in large quantities. This means ... 225 million malaria patients in developing countries at an affordable ... Interfaces in Potsdam and the Freie Universitt Berlin have developed ...
... Can a one-size-fits all approach really work? The world ... In the west it is already widespread and it ... change in the lifestyles of recent generations., "Fat, Fate and ... tackled by focusing solely on adult lifestyles and asks the ...
... evolve the ability to grow beyond the tissues in ... tumor cells -- are tethered to scaffolding that helps ... University of Helsinki, Finland, and from UCSF have identified ... them to further misbehave. The protein, they ...
Cached Biology News:Anti-malaria drug synthesized with the help of oxygen and light 2Anti-malaria drug synthesized with the help of oxygen and light 3'Fat, Fate and Disease' 2Some breast cancer spread may be triggered by a protein, study shows 2Some breast cancer spread may be triggered by a protein, study shows 3
(Date:7/2/2015)... (PRWEB) , ... July 02, 2015 , ... ... development and manufacturing of surgical instruments in Orthopedics, announced today the acquisition of ... and the world's largest provider of surgical instruments to the Spine Industry. The ...
(Date:7/1/2015)... ... , ... The next-generation sequencing (NGS) clinical market is poised for huge growth ... BCC Research reveals in its new report that the market drivers of this vibrant ... need for better diagnostics as part of a molecular diagnostics trend. , The global ...
(Date:7/1/2015)... , July 1, 2015 Isagenix International, ... has earned three Gold, three Silver, and three Bronze ... gala held in Chicago this ... the premier business awards program in the U.S. ... our company,s strength in developing leaders, cultivating talent, creating ...
(Date:7/1/2015)... STRATFORD, CONNECTICUT (PRWEB) , ... July 01, 2015 ... ... disinfected or sterilized to combat pathogen transmission. CTI’ new Medical Joysticks have ... of medical devices now have an operator control device that will increase healthcare ...
Breaking Biology Technology:In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 3NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 3Isagenix Earns Nine American Business Awards 2Isagenix Earns Nine American Business Awards 3Sanitized Medical Joysticks for a Safer and Healthier Work Environment 2
... C3i, the leader in technology services for the life ... biopharmaceutical company, will deliver a joint presentation discussing the ... Oracle Clinical/Remote Data Capture (OCRDC) software. The presentation will ... User Group conference (OHSUG) in San Antonio, TX October ...
... Eagles, Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New... -- NEW YORK, October 5, 2010 ... ... if (typeof(lpUnit)==,undefined,) var lpUnit=,PRN,; --> ... = function(data) { var s = ,; var first_result; // Results are keyed by longUrl, so we ...
... the world of pesticides and pest control, and a range ... public health, ensure that this is done safely, maximize the ... new report. In a study published today in the ... from Oregon State University and the European Union outline six ...
Cached Biology Technology:C3i and Bristol-Myers Squibb to Discuss the Effects of Oracle Clinical 4.5.3 Zero Footprint on Support Services at the Oracle Health Sciences User Group Conference 2Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 2Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 3Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 4Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 5Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 6Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 7Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 8Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 9Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 10New approaches needed to gauge safety of nanotech-based pesticides 2New approaches needed to gauge safety of nanotech-based pesticides 3
... of your microarray data using Asuragens ... you need from consultation to extensive ... to date methods. Utilize our expertise ... Profiling Service or from your own ...
... Maximize the value of your microarray ... the support you need from consultation to ... to date methods. Utilize our expertise in ... or from your own microarray experiments., ,Normalization ...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. Material: cap ...
BD Falcon 850 cm Smooth-surface TufRol Roller Bottle, tissue-culture treated polystyrene, blow-molded one-piece design, with easy on/off non-vented cap, packed in double bag. (20/ca) Packaging: ...
Biology Products: