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:7/31/2014)... enormous conflagration known as the Rim Fire was in ... mature trees, when it entered the backcountry of Yosemite ... 2013. But inside the park, the battle began to ... decisions and drought can combine to fuel large, severe ... it eventually encountered lands where fire had been used ...
(Date:7/31/2014)... are familiar with Hibiscus flowers- they are an ... are commonly planted in the landscape. Some, like ... endangered species. , Only a relatively few botanists ... an equally beautiful and intriguing related group of ... of Hibiscus". , Brother of Hibiscus species are ...
(Date:7/31/2014)... White, brown and beige adipocytes, or fat cells, are ... functions and each plays its own role in metabolism. ... far the most prevalent. Its primary function is energy ... energy to generate heat but are only found in ... adipocytes, which represent a special type of brown adipocytes, ...
Breaking Biology News(10 mins):The Rim Fire 1 year later: A natural experiment in fire ecology and management 2The Rim Fire 1 year later: A natural experiment in fire ecology and management 3The Rim Fire 1 year later: A natural experiment in fire ecology and management 4The Rim Fire 1 year later: A natural experiment in fire ecology and management 5Brother of Hibiscus is found alive and well on Maui 2Hope for the overweight 2
... Washington, DC Engineered nanoscale materials (ENMs), which ... use in food packaging, raise new safety evaluation ... report released today by the Project on Emerging ... The food-packaging industry, food companies and ...
... developed an effective technology for reducing contamination of dangerous ... Salmonella and E. coli O157:H7 on foods ranging from ... It is made from inexpensive and readily available ingredients ... and Drug Administration. The new technology, which ...
... Almost every June for 30 years, Terry McEneaney drove around ... three routes. Park ornithologist at the time, he would ... Then he,d drive another half mile, repeat the process and ... for the North American Breeding Bird Survey. Trying to finish ...
Cached Biology News:Use of nanomaterials in food packaging poses regulatory challenges 2New UGA invention effectively kills foodborne pathogens in minutes 2Bird watchers, space technology come together in Montana State University study 2Bird watchers, space technology come together in Montana State University study 3
(Date:8/1/2014)... Aug. 1, 2014 One of the major ... personalized medicine, which is the practice of using genomic ... a patient,s individual biology. Personalized diagnostics—laboratory analyses that inform ... in the lab,s future. This fall, AACC ,s ... latest science in this exciting field and the novel ...
(Date:8/1/2014)... BCC Research ( http://www.bccresearch.com ) reveals in its ... MARKETS , that the global market RNA interference (RNAi) ... $38.8 billion by 2018, with a five-year compound annual ... the fastest moving segment of the market, is moving ... RNAi therapeutics has shown tremendous growth and has moved ...
(Date:7/31/2014)... (PRWEB) August 01, 2014 ... China Polyurethane Resin Industry” is a professional ... market. The report introduces Polyurethane Resin basic ... industry chain structure and industry overview. This ... China’s domestic market as well as global ...
(Date:7/31/2014)... see through organs and even the entire body to ... cellular structures has been a long-time dream of biologists. ... 31st in the journal Cell has now ... making opaque organs, bodies, and human tissue biopsies transparent, ... protocols could pave the way for a better understanding ...
Breaking Biology Technology:First-Ever AACC Virtual Conference to Focus on Personalized Diagnostics 2Global Market for RNAi Drug Delivery Technologies to Reach $38.8 Billion in 2018; Aptamer Delivery Segment Surging at 58.2% CAGR 2Global Market for RNAi Drug Delivery Technologies to Reach $38.8 Billion in 2018; Aptamer Delivery Segment Surging at 58.2% CAGR 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 4See-through organs and bodies will accelerate biomedical discoveries 2
... , SAN FRANCISCO, Aug. 11 ... stage biopharmaceutical company developing a proprietary breakthrough class of targeted ... private placement financing with gross proceeds of US $5,123,521, exceeding ... anticipated on or before September 15, 2009, with additional proceeds ...
... , , CAMBRIDGE, Mass., Aug. 11 ... of novel therapies for immune-mediated diseases, today announced changes to the protocol ... and efficacy of otelixizumab, a targeted T cell immunomodulator, in patients with ... ( D urable Response Therapy E valuation F or ...
... SEATTLE, Aug. 11 Omeros Corporation today announced ... OMS302, the Company,s ophthalmologic PharmacoSurgery(TM) product candidate. OMS302 is ... agent that causes pupil dilation (mydriasis), each with well-known ... Omeros, Phase 1/Phase 2 trial enrolled 61 patients undergoing ...
Cached Biology Technology:Jennerex Closes $5 Million First Tranche of Series C Financing 2Tolerx Announces Amendment to Phase 3 DEFEND Protocol 2Tolerx Announces Amendment to Phase 3 DEFEND Protocol 3Omeros Announces Positive Clinical Results of Phase 1/Phase 2 Trial of OMS302 for Use During Ophthalmologic Surgery 2
Recombinant Rhesus Macaque IFN-alpha...
chk 1 kinase...
...
KNP-1 (HES1) Purified Anti-Mouse, Anti-Rat, Anti-Human, Anti-Dog, Anti-Chicken clone 35, Isotype Mouse IgG 1 , 150 µg Consult technical datasheet for details....
Biology Products: