Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > High definition diagnostic ultrasonics on the nanoscale

Abstract:
Scientists and Engineers at The University of Nottingham have built the world's smallest ultrasonic transducers capable of generating and detecting ultrasound.

High definition diagnostic ultrasonics on the nanoscale

Nottingham | Posted on August 17th, 2010

These revolutionary transducers which are orders of magnitude smaller than current systems ó are so tiny that up to 500 of the smallest ones could be placed across the width of one human hair.

While at an early stage these devices offer a myriad of possibilities for imaging and measuring at scales a thousand times smaller than conventional ultrasonics. They can be made so small they could be placed inside cells to perform intracellular ultrasonics. They can produce ultrasound of such a high frequency that its wavelength is smaller than that of visible light. Theoretically they make it possible for ultrasonic images to take finer pictures than the most powerful optical microscopes.

The work, by the Applied Optics Group in the Division of Electrical Systems and Optics has been deemed so potentially innovative that last year it was awarded a £850,000 five year Platform Grant by the Engineering and Physical Sciences Research Council (EPSRC) to develop advanced ultrasonic techniques. The team has also been supported by additional funding of £350,000 from an EPSRC grant to underpin aerospace research.

Matt Clark, of the Applied Optics Group, said: "With the rise of nanotechnology you need more powerful diagnostic tools, especially ones that can operate non-destructively and ones which can be used to access the mechanical and chemical properties of the samples at this scale. These new transducers are hugely exciting and bring the power of ultrasonics to the nanoscale."

The ultrasonic transducers consist of sandwich or shell like structures carefully engineered to possess both optical and ultrasonic resonances. When they are hit by a pulse of laser light they are set ringing at high frequency which launches ultrasonic waves into the sample. When they are excited by ultrasound the transducers are very slightly deformed and this changes their optical resonances which are detected by a laser.

The devices can be constructed either by micro/nano lithography techniques similar to those used for microchips or by molecular self assembly where the transducers are constructed chemically.
Perhaps the most familiar application of ultrasonics is medical imaging but it is also widely used in engineering applications and for chemical sensing. These tiny transducers open up the possibility of using these techniques on the smallest scales, for instance inside cells and on nano-engineered components.

Dr Clark said: "Imagine imaging inside cells in the same way that ultrasonic imaging is performed inside bodies. Theoretically we could get higher resolution with the nano-ultrasonics than you can with optical microscopes and the contrast would be very interesting. In addition the transducers can be made into highly sensitive chemical sensors ó ultrasonics SAW sensors are used on the normal scale for electronic noses ó this would allow you to distribute chemical sensors in tissue or in paint ó so you could make paint with chemical sensors to detect corrosion or explosives in it."

The research was performed between the Division of Electrical Systems and Optics in the Faculty of Engineering and the School of Pharmacy.

####

For more information, please click here

Contacts:
Lindsay Brooke
Media Relations Manager

+44 (0)115 951 5751

Copyright © University of Nottingham

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

UT Arlington researchers develop transparent nanoscintillators for radiation detection for medical safety and homeland security September 29th, 2014

Iranian Scientists Determine Grain Size, Minimize Time of Nanocomposite Synthesis September 29th, 2014

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

'Pixel' engineered electronics have growth potential: Rice, Oak Ridge, Vanderbilt, Penn scientists lead creation of atom-scale semiconducting composites September 29th, 2014

Possible Futures

Air Forceís 30-year plan seeks 'strategic agility' August 1st, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Academic/Education

Biosensors Get a Boost from Graphene Partnership: $5 Million Investment Supports Dozens of Jobs and Development of 300mm Fabrication Process and Wafer Transfer Facility September 18th, 2014

Malvern technology delivers Malvern reliability in multi-disciplinary lab at Queen Mary University London September 9th, 2014

State University of New York Trustees Unanimously Approve SUNY Polytechnic Institute (SUNY Poly) as New Name for Merged SUNY CNSE / SUNYIT September 9th, 2014

New Vice President Takes Helm at CNSE CMOST: Catherine Gilbert To Lead CNSE Childrenís Museum of Science and Technology Through Expansion And Relocation August 29th, 2014

Nanomedicine

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

Teijin Aramidís carbon nanotube fibers awarded with Paul Schlack prize: New generation super fibers bring wave of innovations to fiber market September 25th, 2014

Nanotubes help healing hearts keep the beat: Rice University, Texas Childrenís Hospital patch for defects enhances electrical connections between cells September 23rd, 2014

Immune system is key ally in cyberwar against cancer: Rice University study yields new two-step strategy for weakening cancer September 23rd, 2014

Sensors

Graphene and Amaranthus Superparamagnets: Breakthrough nanoparticles discovery of Indian researcher September 23rd, 2014

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

Biosensors Get a Boost from Graphene Partnership: $5 Million Investment Supports Dozens of Jobs and Development of 300mm Fabrication Process and Wafer Transfer Facility September 18th, 2014

The Pocket Project will develop a low-cost and accurate point-of-care test to diagnose Tuberculosis: ICN2 holds a follow-up meeting of the Project on September 18th - 19th September 18th, 2014

Announcements

UT Arlington researchers develop transparent nanoscintillators for radiation detection for medical safety and homeland security September 29th, 2014

Iranian Scientists Determine Grain Size, Minimize Time of Nanocomposite Synthesis September 29th, 2014

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

'Pixel' engineered electronics have growth potential: Rice, Oak Ridge, Vanderbilt, Penn scientists lead creation of atom-scale semiconducting composites September 29th, 2014

Tools

Iranian Scientists Determine Grain Size, Minimize Time of Nanocomposite Synthesis September 29th, 2014

Oxford Instruments launches 3rd annual Indian nanotechnology seminars in Kolkata and Delhi - sharing expertise with Nanotechnology researchers in India September 25th, 2014

Contributing to the spirit of the IYCR 2014 September 24th, 2014

New NIH/DOE Grant for Life Science Studies at NSLS-II: Funding will support operation of three powerful experimental stations designed to reveal detailed structures of proteins, viruses, and more September 23rd, 2014

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

Teijin Aramidís carbon nanotube fibers awarded with Paul Schlack prize: New generation super fibers bring wave of innovations to fiber market September 25th, 2014

New chip promising for tumor-targeting research September 22nd, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Nanobiotechnology

Penn Team Studies Nanocrystals by Passing Them Through Tiny Pores September 26th, 2014

Graphene and Amaranthus Superparamagnets: Breakthrough nanoparticles discovery of Indian researcher September 23rd, 2014

New NIH/DOE Grant for Life Science Studies at NSLS-II: Funding will support operation of three powerful experimental stations designed to reveal detailed structures of proteins, viruses, and more September 23rd, 2014

Production of Organometallic Frameworks in Least Possible Time September 23rd, 2014

Research partnerships

'Pixel' engineered electronics have growth potential: Rice, Oak Ridge, Vanderbilt, Penn scientists lead creation of atom-scale semiconducting composites September 29th, 2014

Teijin Aramidís carbon nanotube fibers awarded with Paul Schlack prize: New generation super fibers bring wave of innovations to fiber market September 25th, 2014

Smallest-possible diamonds form ultra-thin nanothread September 25th, 2014

Future flexible electronics based on carbon nanotubes: Study in Applied Physics Letters show how to improve nanotube transistor and circuit performance with fluoropolymers September 23rd, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE