Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Micro-manufacturing breakthrough is wired for sound

Researcher Dr Amgad Rezk with the lithium niobate chip.
Researcher Dr Amgad Rezk with the lithium niobate chip.

Abstract:
In a breakthrough discovery, researchers at RMIT University in Melbourne, Australia, have harnessed the power of sound waves to enable precision micro- and nano-manufacturing.

Micro-manufacturing breakthrough is wired for sound

Melbourne, Australia | Posted on June 24th, 2014

The researchers have demonstrated how high-frequency sound waves can be used to precisely control the spread of thin film fluid along a specially-designed chip, in a paper published today in Proceedings of the Royal Society A.

With thin film technology the bedrock of microchip and microstructure manufacturing, the pioneering research offers a significant advance - potential applications range from thin film coatings for paint and wound care to 3D printing, micro-casting and micro-fluidics.

Professor James Friend, Director of the MicroNano Research Facility at RMIT, said the researchers had developed a portable system for precise, fast and unconventional micro- and nano-fabrication.

"By tuning the sound waves, we can create any pattern we want on the surface of a microchip," Professor Friend said.

"Manufacturing using thin film technology currently lacks precision ­- structures are physically spun around to disperse the liquid and coat components with thin film.

"We've found that thin film liquid either flows towards or away from high-frequency sound waves, depending on its thickness.

"We not only discovered this phenomenon but have also unravelled the complex physics behind the process, enabling us to precisely control and direct the application of thin film liquid at a micro and nano-scale."

The new process, which the researchers have called "acoustowetting", works on a chip made of lithium niobate ­- a piezoelectric material capable of converting electrical energy into mechanical pressure.

The surface of the chip is covered with microelectrodes and the chip is connected to a power source, with the power converted to high-frequency sound waves. Thin film liquid is added to the surface of the chip, and the sound waves are then used to control its flow.

The research shows that when the liquid is ultra-thin ­- at nano and sub-micro depths - it flows away from the high-frequency sound waves.

The flow reverses at slightly thicker dimensions, moving towards the sound waves. But at a millimetre or more in depth, the flow reverses again, moving away.

Full bibliographic information

Title: Double Flow Reversal in Thin Liquid Films Driven by MHz Order Surface Vibration
Authors: Amgad R. Rezk, Ofer Manor; Leslie Y. Yeo, and James R. Friend
Journal: Proceedings of the Royal Society A
Date: Wednesday, 25 June 2014

####

About RMIT University
RMIT University is a global university of technology and design, focused on creating solutions that transform the future for the benefit of people and their environments.

One of Australia’s original educational institutions founded in 1887, RMIT is now the nation’s largest and most internationalised tertiary institution with more than 82,000 students.

The University enjoys an international reputation for excellence in professional and practical education, applied research, and engagement with the needs of industry and the cities in which it is located.

RMIT has three campuses in Melbourne, two campuses in Vietnam and an office in Barcelona, Spain. The University also offers programs through partners in Singapore, Hong Kong, mainland China, Indonesia, Sri Lanka, Spain and Germany, and enjoys research and industry partnerships on every continent.

RMIT is ranked in the top 15 among all Australian universities (2013 QS World University Rankings) and has a 5-Star QS ranking for excellence in higher education.

In 2013, RMIT was named International Education Provider of the Year in the inaugural Victorian International Education Awards.

For more information, please click here

Contacts:
David Glanz

Copyright © AlphaGalileo

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

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Nanolab Technologies LEAPS Forward with High-Performance Analysis Services to the World: Nanolab Orders Advanced Local Electrode Atom Probe (LEAP®) Microscope from CAMECA Unit of AMETEK Materials Analysis Division August 27th, 2015

3D printing

These microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel method to build microscopic robots with complex shapes and functionalities August 26th, 2015

3D-printed 'smart cap' uses electronics to sense spoiled food July 20th, 2015

Silica 'spiky screws' could enhance industrial coatings, additive manufacturing June 24th, 2015

Physics

Record-high pressure reveals secrets of matter: The most incompressible metal osmium at static pressures above 750 GPa August 25th, 2015

Southampton scientists find new way to detect ortho-para conversion in water August 25th, 2015

Biophysics: Formation of swarms in nanosystems August 18th, 2015

Thin films

Electrospray solves longstanding problem in Langmuir-Blodgett assembly: The electrospray spreads water-soluble solvents on water while minimizing mixing August 20th, 2015

Scientists achieve major breakthrough in thin-film magnetism August 17th, 2015

Videos/Movies

High Precision, High Stability XYZ Microscope Stages, with Capacitive Feedback August 18th, 2015

Engineers identify how to keep surfaces dry underwater: Research team is first to identify surface 'roughness' required to achieve amazing feat August 18th, 2015

Microfluidics/Nanofluidics

Smart hydrogel coating creates 'stick-slip' control of capillary action July 27th, 2015

Miniature Technology, Large-Scale Impact: Winner of the 2015 Lindros Award for translational medicine, Kjeld Janssen is pushing the boundaries of the emerging lab-on-a-chip technology July 7th, 2015

Nanomedicine

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

These microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel method to build microscopic robots with complex shapes and functionalities August 26th, 2015

Glitter from silver lights up Alzheimer's dark secrets August 25th, 2015

Discoveries

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

CWRU researchers efficiently charge a lithium-ion battery with solar cell: Coupling with perovskite solar cell holds potential for cleaner cars and more August 27th, 2015

Successful boron-doping of graphene nanoribbon August 27th, 2015

Materials/Metamaterials

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Successful boron-doping of graphene nanoribbon August 27th, 2015

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Quantum diffraction at a breath of nothing: Physicists build stable diffraction structure in atomically thin graphene August 25th, 2015

Announcements

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Nanolab Technologies LEAPS Forward with High-Performance Analysis Services to the World: Nanolab Orders Advanced Local Electrode Atom Probe (LEAP®) Microscope from CAMECA Unit of AMETEK Materials Analysis Division August 27th, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

A new technique to make drugs more soluble August 28th, 2015

CWRU researchers efficiently charge a lithium-ion battery with solar cell: Coupling with perovskite solar cell holds potential for cleaner cars and more August 27th, 2015

Successful boron-doping of graphene nanoribbon August 27th, 2015

Researchers combine disciplines, computational programs to determine atomic structure August 26th, 2015

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







Car Brands
Buy website traffic