Navigation Links
Nanotechnologists Specify Limitation For Devising Small Machines

There's a limit to how tiny gadgets, devices and machines can get, scientists have claimed.

The claim comes from an experiment performed by a University of Arizona// team of optical sciences doctoral candidate John D. Perreault and assistant professor of physics Alexander D. Cronin.

Perreault and Cronin directly measured how close speeding atoms can come to a surface before the atoms' wavelengths change, said a statement from the university.

Theirs is a first, fundamental measurement that confirms the idea that the wave of a fast-moving atom shortens and lengthens depending on its distance from a surface, an idea first proposed by pioneering quantum physicists in the late 1920s.

The measurement tells nanotechnologists how small they can make extremely tiny devices before a microscopic force between atoms and surfaces, called van der Waals interaction, becomes a concern.

The result is important both for nanotechnology, where the goal is to make devices as small as a few tens of billionths of a metre, and for atom optics, where the goal is to use the wave nature of atoms to make more precise sensors and study quantum mechanics.

Perreault and Cronin reported the experiment in the latest issue of Physical Review Letters.

"Our research provides the first direct experimental evidence that a surface 25 nanometres away (25 billionths of a metre) causes a shift in the atom wave crests," Perreault said.

"It shows that the van der Waals interaction may be a small scale force, but it's a big deal for atoms."

Cronin said: "We might say that when an atom is between 10 and 20 nanometres from a surface, it gets sucked toward the surface with a force a million times its weight.

"And when it gets closer, it gets pulled even harder."

Perreault said: "I think the impact of our work stems from the intersection of the fields of atom optics and nanotechnology. It answer
'"/>




Page: 1 2

Related medicine news :

1. Smallpox as Biological Weapons?
2. Is Smallpox Threat Real ?
3. Smallpox Vaccine May Help Fight Cervical Cancer
4. Smallpox Would Spread Rapidly
5. Drug Firm Offers to Donate Smallpox Vaccine
6. Small aneurysms best left untouched
7. Small lumps in breast if not treated may cause long-term harm
8. Third generation Small pox vaccine from Cell-culture
9. CT Scans Said to Accurately Detect Small Cancers
10. Brain of Cocaine Addicts Smaller In Size
11. Researchers Begin Study To Find Out If Angioplasty Can Be Safely Done In Smaller Hospitals
Post Your Comments:
(Date:9/1/2015)... ... September 01, 2015 , ... Situations requiring fast, easy-to-understand business ... most convenient time for everyone involved. These occasions highlight the value of a ... Services has real people available to handle any translation assignment at any ...
(Date:9/1/2015)... (PRWEB) , ... September 01, ... ... announced today it has established the MAP Recovery Network, the Premier Outcomes-Driven ... treatment providers. This rapidly-growing alliance is dedicated to the provision of quality ...
(Date:9/1/2015)... ... September 01, 2015 , ... Elizabeth Callahan, MD, founder and medical director of ... area to offer RADIESSE® filler treatment for volume loss in the hands. RADIESSE provides ... veins in the hands, delivering smooth, natural-looking results that can last up to one ...
(Date:9/1/2015)... ... September 01, 2015 , ... ... sponsored an educational workshop for physician assistants (PAs) practicing in orthopedics. The workshop, ... Zeel™” was held by Dr. Erick Salado, an orthopedic surgeon at South Florida ...
(Date:9/1/2015)... ... 01, 2015 , ... Curly Hair Solutions™ is thrilled to ... anticipated partnership between Curly Hair Solutions™ and Trade Secrets allows for nationwide distribution ... the Curly Hair Solutions™ team could not be more delighted to see their ...
Breaking Medicine News(10 mins):Health News:Universal Translation Services Provides Quality Translations 24 Hours a Day Including Weekends 2Health News:Universal Translation Services Provides Quality Translations 24 Hours a Day Including Weekends 3Health News:MAP Health Management Launches the MAP Recovery Network 2Health News:SkinSmart Dermatology in Sarasota is Now Offering RADIESSE to Rejuvenate Hands 2Health News:SkinSmart Dermatology in Sarasota is Now Offering RADIESSE to Rejuvenate Hands 3Health News:New Hope for Patients Seeking Treatment of Osteoarthritis Knee Pain 2Health News:New Hope for Patients Seeking Treatment of Osteoarthritis Knee Pain 3Health News:Curly Hair Solutions™ Partners With Trade Secrets 2
... to a new study a meditation programme helps ... Integrative Medicine at Jefferson University Hospital in Carolina, ... meditation programme. This went on for eight weeks. ... asthma, panic disorder, depression, chronic pain, gastrointestinal problems, ...
... of raise over the past decade or two and with ... a conference sponsored by the National Institute on Drug Abuse ... impact on blood flow to parts of the brain and ... the name in vogue for the chemical substance methylenedioxymethamphetamine or ...
... are very low in animal products can be short of ... strengthen teeth. ,Dr.Ludwig Leibsohn, faculty in AGD , ... time can be at risk of periodontal disease. Teeth may ... more susceptible to decay."// ,Deficiencies in vitamin D ...
... because it robs individuals of their bone strength without showing ... weaken and break easily, affects women and men, nearly half ... in eight men over age 50 will have an osteoporotic ... osteoporosis can lead to chronic pain, loss of independence and, ...
... school of Medicine from Harvard,after studying the eating behavior and the ... animal fats and less vegetables in the diet between the 6th ... the research to an early puberty. ,The results of the ... and to maintain a healthy weight throughout all life.// Because in ...
... to experts from the Mayo Clinic in Rochester, Minnesota Vitamin ... sufferers with hot flashes. Estrogen relieves hot flashes ... breast cancer survivors because the hormone may stimulate breast cancer ... alleviate hot flashes and other symptoms of menopause, and is ...
Cached Medicine News:Health News:Ecstasy shrinks brain!!-researchers unveil the secrets of MDMA., 2
(Date:8/31/2015)... IRVINE, Calif. , Aug. 31, 2015 /PRNewswire/ ... business and government, where regulations are often strict ... environment is driving a demand for professionals who ... interpret these regulations across a product lifecycle and ... organization. The University of California, Irvine Extension ...
(Date:8/31/2015)... FLINT, Mich. , Aug. 31, 2015  Diplomat Pharmacy, ... pharmacy, has announced that Phil Hagerman , Chairman & ... four upcoming investor conferences. Mr. Hagerman and ... 2015 Healthcare Conference in Boston on ... Mr. Hagerman and Mr. Whelan are also scheduled to participate ...
(Date:8/31/2015)... , Aug. 31, 2015  Qualcomm Incorporated ... subsidiary, Qualcomm Life, Inc., is collaborating ... chronic care management solutions powered by Qualcomm Life,s ... Platform to enable continuous care, informed interventions and ... announced at Qualcomm Life,s annual Connect 2015 ...
Breaking Medicine Technology:UC Irvine Extension Launches New Regulatory Affairs and Compliance Certificate Program 2UC Irvine Extension Launches New Regulatory Affairs and Compliance Certificate Program 3Diplomat to Participate in Upcoming Investor Conferences 2Qualcomm Life Announces New Connected Health Collaborations at Connect 2015 2Qualcomm Life Announces New Connected Health Collaborations at Connect 2015 3Qualcomm Life Announces New Connected Health Collaborations at Connect 2015 4Qualcomm Life Announces New Connected Health Collaborations at Connect 2015 5
... 2011 Reportlinker.com announces that a new market research ... Global Injectable Drug Delivery Market (2010 - 2015) ... KEY TAKE AWAYS * To ... its various sub-segments with respect to types of systems, ...
... Reportlinker.com announces that a new market research report ... European Markets for Minimally Invasive Spinal Devices ... The European minimally invasive spinal implant ... Rapid growth of the MIS interbody and MIS ...
Cached Medicine Technology:Reportlinker Adds Global Injectable Drug Delivery Market (2010 - 2015) 2Reportlinker Adds Global Injectable Drug Delivery Market (2010 - 2015) 3Reportlinker Adds European Markets for Minimally Invasive Spinal Devices 2011 2
... to 350 Liters of pure water, Complete, ... of Purified Water,Millipores compact S.D.S. Storage and ... to 350 liters of purified water produced ... maintain consistent purity of stored water, provide ...
... to 350 Liters of pure water, Complete, ... of Purified Water,Millipores compact S.D.S. Storage and ... to 350 liters of purified water produced ... maintain consistent purity of stored water, provide ...
... 350 Liters of pure water, Complete, Compact ... Purified Water,Millipores compact S.D.S. Storage and Distribution ... 350 liters of purified water produced by ... consistent purity of stored water, provide effective ...
... a range of Milli-Q ultrapure water ... quality requirements. Each of the five ... specifically target contaminants detrimental to particular ... and ICP-MS. The systems incorporate a ...
Medicine Products: