Navigation Links
A more sensitive sensor
Date:3/22/2010

Electro-mechanical sensors tell the airbag in your car to inflate and rotate your iPhone screen to match your position on the couch. Now a research group of Tel Aviv University's Faculty of Engineering is making the technology even more useful.

Prof. Yael Hanein, Dr. Slava Krylov and their doctoral student Assaf Ya'akobovitz have set out to make sensors for microelectromechanical systems (MEMS) significantly more sensitive and reliable than they are today. And they're shrinking their work to nano-size to do it.

More sensitive sensors means more thrilling videogames, better functioning prosthetic limbs, cars that can detect collisions and dangerous turns before they occur, and -- in the defense industry -- missiles that can reach a target far more precisely.

Miniscule earthquakes

Able to "feel" and sense the movement of individual atoms, the researchers' new MEMS sensing device uses small carbon tubes, nano in size -- about one-billionth of a meter long. Creating these tiny tubes using a process involving methane gas and a furnace, Prof. Hanein has developed a method whereby they arrange themselves on a surface of a silicon chip to accurately sense tiny movements and changes in gravity.

In the device developed by Prof. Hanein's and Dr. Krylov's team, a very tiny nanometer scale tube is added onto much larger micrometer-scale MEMS devices. Small deformities in the crystal structure of the tubes register a change in the movement of the nano object, and deliver the amplitude of the movement through an electrical impulse. "It's such a tiny thing," Prof. Hanein says. "But at our resolution, we are able to feel the motion of objects as small as a few atoms."

"Originally developed mainly for the car industry, miniature sensors are all around us," says Prof. Hanein. "We've been able to fabricate a new device where the nano structures are put onto a big surface -- and they can be arranged in a process that doesn't require human intervention, so they're easier to manufacture. We can drive these nano-sensing tubes to wherever we need them to go, which could be very convenient and cost-effective across a broad spectrum of industries."

Until now, Prof. Hanein explains, the field of creating sensors for nanotechnology has been primarily based on manual operation requiring time-consuming techniques. Prof. Hanein and her team have developed a sensitive but abundant and cost-effective material that can be coated onto prosthetic limbs, inserted into new video games for more exciting play, and used by the auto industry to detect a potential collision before it becomes fatal.

The technology has been presented in a number of peer-reviewed journals including the Journal of Micromechanics and Micro-engineering; at a MEMS conference in Hong Kong; and at a nano conference in Tirol, Austria in March.

Markets in motion

The market for MEMS devices, which take mechanical signals and convert them into electrical impulses, is estimated to be worth billions. "The main challenge facing the industry today is to make these basic sensors a lot more sensitive, to recognize minute changes in motion and position. Obviously there is a huge interest from the military, which recognizes the navigation potential of such technologies, but there are also humanitarian and recreational uses that can come out of such military developments," Prof. Hanein stresses. More sensitive MEMS could play a role in guided surgery, for example.

The TAU team is working on optimizing the system, hoping to make it at least 100 times more sensitive than any sensor device on the market today.


'/>"/>

Contact: George Hunka
ghunka@aftau.org
212-742-9070
American Friends of Tel Aviv University
Source:Eurekalert

Related biology technology :

1. Siemens Focuses on Role-Based, Context-Sensitive, and Knowledge-Driven Solutions at HIMSS 2009
2. Nanotechnology makes supertelescopes much more sensitive
3. Winning University of Melbourne Ph.D. research boosts the search for sensitive sensors
4. The sensitive side of carbon nanotubes: Creating powerful pressure sensors
5. Gems Sensors & Controls Receives ISO-13485:2003 Certification
6. Advanced Instruments Signs License and Sensor Development Agreement With Cantimer, Inc.
7. Silicon Kinetics Announces New Biosensor Chips With Wide Palette of Surface Chemistries
8. Spectros Corp. Deep-Monitoring Continuum Noninvasive Cerebral Oxygenation Sensors
9. New nanotech sensor developed with medical, chemistry applications
10. Energy-autonomous sensors for aircraft
11. New biosensor can detect bacteria instantaneously
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/10/2017)... ... October 10, 2017 , ... ... conjugate (ADC) therapeutics, today confirmed licensing rights that give it exclusive global ... technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). Additionally, ...
(Date:10/10/2017)... BARBARA, CALIFORNIA (PRWEB) , ... October 10, 2017 ... ... management, technological innovation and business process optimization firm for the life sciences and ... BoxWorks conference in San Francisco. , The presentation, “Automating GxP Validation ...
(Date:10/9/2017)... ... October 09, 2017 , ... The Giving Tree Wellness ... targeting the needs of consumers who are incorporating medical marijuana into their wellness ... Arizona. , As operators of two successful Valley dispensaries, The Giving Tree’s two ...
(Date:10/6/2017)... ... October 06, 2017 , ... The ... and technology sector at their fourth annual Conference where founders, investors, innovative practitioners ... and the ELEVATE pitch competition showcasing early stage digital health and med tech ...
Breaking Biology Technology:
(Date:4/4/2017)... YORK , April 4, 2017   EyeLock ... today announced that the United States Patent and Trademark ... patent broadly covers the linking of an iris image ... same transaction) and represents the company,s 45 th ... latest patent is very timely given the multi-modal biometric ...
(Date:3/30/2017)... March 30, 2017 Trends, opportunities and forecast ... behavioral), by technology (fingerprint, AFIS, iris recognition, facial recognition, ... others), by end use industry (government and law enforcement, ... and banking, and others), and by region ( ... Asia Pacific , and the Rest ...
(Date:3/24/2017)... 2017 The Controller General of Immigration from Maldives ... Algeen have received the prestigious international IAIR Award for the most ... Reading ... Maldives ... Abdulla Algeen (small picture on the right) have received the IAIR award ...
Breaking Biology News(10 mins):