Navigation Links
New 'nano-positioners' may have atomic-scale precision
Date:8/20/2008

d, inducing an attraction between the oppositely charged fingers. If the voltage is removed, the spring-loaded comb sections return to their original position.

By comparison, the new monolithic device has a single structure with two perpendicular comb drives.

Clark calls the device monolithic because it contains comb drive components that are not mechanically and electrically separate. Conventional comb drives are structurally "decoupled" to keep opposite charges separated.

"Comb drives represent an advantage over other technologies," Clark said. "In contrast to piezoelectric actuators that typically deflect, or move, a fraction of a micrometer, comb drives can deflect tens to hundreds of micrometers. And unlike conventional comb drives, which only move in one direction, our new device can move in two directions - left to right, forward and backward - an advance that could really open up the door for many applications."

Clark also has invented a way to determine the precise deflection and force of such microdevices while reducing heat-induced vibrations that could interfere with measurements.

Current probe-based biological sensors have a resolution of about 20 nanometers.

"Twenty nanometers is about the size of 200 atoms, so if you are scanning for a particular molecule, it may be hard to find," Clark said. "With our design, the higher atomic-scale resolution should make it easier to find."

Properly using such devices requires engineers to know precisely how much force is being applied to comb drive sensors and how far they are moving. The new design is based on a technology created by Clark called electro micro metrology, which enables engineers to determine the precise displacement and force that's being applied to, or by, a comb drive. The Purdue researcher is able to measure this force by comparing changes in electrical properties such as capacitance
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Researcher provides tool to enable determination of age of anchovies with greater precision
2. Emphasizing the precision in precision agriculture
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New 'nano-positioners' may have atomic-scale precision
(Date:10/16/2014)... Post-menopausal women experienced improvements in vaginal atrophy, with ... bleeding, after 12 weeks of daily 10 milligram ... nutritional supplement previously shown to help relieve certain ... study reported in a poster at the North ... , "These data documented improved vaginal epithelium, without ...
(Date:10/15/2014)... Gutenberg University Mainz (JGU) as a full member, ... maintain a significant nationwide standing in the field ... Johannes Gutenberg University Mainz as a full member ... national and international competition for the best minds ... be proud that Mainz University has been recognized ...
(Date:10/15/2014)... 15, 2014   Neurotechnology , a provider ... availability of the VeriLook Surveillance 3.0 software ... real-time biometric face identification using live video streams ... The new version not only identifies faces in ... objects while they are moving through the video ...
Breaking Biology News(10 mins):S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3
... are improving the taste, appearance and nutritional content of ... grow to $6 billion by 2017, according to a ... (IFT) Annual Meeting & Food Expo in Chicago. ... an immune disorder triggered by the ingestion of gluten ...
... tissue sustains irreparable damage in the wake of a ... and the cardiac muscle contains few stem cells, the ... fibrotic and cannot contract properly. In their search ... been exploring cardiac "patches" that could be transplanted into ...
... to cancer and other diseases, genetic testing, infectious proteins ... topics internationally renowned speakers will tackle at The EMBO ... from 21-24 September 2013. Sir Michael Stratton, Director ... Executive Officer of deCODE Genetics, and Thijn Brummelkamp, Group ...
Cached Biology News:New technologies and ingredients provide better options for gluten-free eating 2A heart of gold 2Anne Glover and Sir Michael Stratton to meet the press at The EMBO Meeting 2013 in Amsterdam 2
(Date:10/20/2014)... NEW YORK , Oct. 20, 2014 /PRNewswire/ ... of their experimental ZMapp™ antibody therapeutic to fight ... of how difficult and time-consuming the production of ... healthcare market research publisher said that while some ... cycle of this compound, those with industry knowledge ...
(Date:10/20/2014)... -- , A major pan-European survey into ... of care has revealed changing trends in many important ... provision of healthcare services across the continent. The results ... Gastroenterology (UEG), have been announced today and led to ... burden of GI disorders across Europe ...
(Date:10/20/2014)... (PRWEB) October 20, 2014 ... Partners LLC, announced today that Ellen Teplitzky, an ... support for the pharmaceutical industry, has joined the ... of its legal services practice. NDA Partners ... expert witness and testimony, to top law firms ...
(Date:10/19/2014)... CAMBRIDGE, Mass. , Oct. 19, 2014 NextCODE ... of the whole genome in real time, today announced the ... the NextCODE Exchange , at the American Society of ... . To learn more, sign up and apply for ... on its unique features and benefits can be viewed ...
Breaking Biology Technology:Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 3
... petroleum-based energy production. However, current solar-cell technology often does ... expensive to mass-produce. In addition, information on the total ... incomplete, experts say. To better understand the energy ... research team from Rochester Institute of Technology has conducted ...
... Belgium and BOSTON, September 17, 2010 ... ... ... are keyed by longUrl, so we need to grab the first one. for (var r in data.results) ...
... A new technology for removing water from ultrafine coal ... at an operating coal cleaning plant. The technology offers ... from the source. A peer-reviewed paper on this new ... Coal Preparation Society Conference, Cairns, Queensland. Cleaning coal ...
Cached Biology Technology:Research team assesses environmental impact of organic solar cells 2Materialise and Dr. J.B. Jupiter Explore the Power of Virtual Surgical Planning in Correcting Compound Wrist Fractures 2Materialise and Dr. J.B. Jupiter Explore the Power of Virtual Surgical Planning in Correcting Compound Wrist Fractures 3Materialise and Dr. J.B. Jupiter Explore the Power of Virtual Surgical Planning in Correcting Compound Wrist Fractures 4Materialise and Dr. J.B. Jupiter Explore the Power of Virtual Surgical Planning in Correcting Compound Wrist Fractures 5Materialise and Dr. J.B. Jupiter Explore the Power of Virtual Surgical Planning in Correcting Compound Wrist Fractures 6Materialise and Dr. J.B. Jupiter Explore the Power of Virtual Surgical Planning in Correcting Compound Wrist Fractures 7Commercial-scale test of new technology to recover coal from sludge successful 2Commercial-scale test of new technology to recover coal from sludge successful 3
Mouse Cell Line Slides...
Human Cell Line Slides...
... Each Signet Level 2 Detection ... the avidin-biotin chemical bonding principle and ... to provide sensitivity, specificity and reliablility. ... immunostaining in both manual and automated ...
6X Loading Buffer is intended for gel electrophoresis of DNA fragments or PCR products....
Biology Products: