Featured Research

from universities, journals, and other organizations

Sound waves harnessed to enable precision micro- and nano-manufacturing

Date:
June 24, 2014
Source:
RMIT University
Summary:
In a breakthrough discovery, researchers have harnessed the power of sound waves to enable precision micro- and nano-manufacturing. 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.

Researcher Dr Amgad Rezk with the lithium niobate chip.
Credit: Image courtesy of RMIT University

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.

Related Articles


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.

Video: http://www.youtube.com/watch?v=IQ762VTxD2g&feature=youtu.be


Story Source:

The above story is based on materials provided by RMIT University. Note: Materials may be edited for content and length.


Journal Reference:

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

Cite This Page:

RMIT University. "Sound waves harnessed to enable precision micro- and nano-manufacturing." ScienceDaily. ScienceDaily, 24 June 2014. <www.sciencedaily.com/releases/2014/06/140624092522.htm>.
RMIT University. (2014, June 24). Sound waves harnessed to enable precision micro- and nano-manufacturing. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2014/06/140624092522.htm
RMIT University. "Sound waves harnessed to enable precision micro- and nano-manufacturing." ScienceDaily. www.sciencedaily.com/releases/2014/06/140624092522.htm (accessed January 31, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, January 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nanoscale Sensor Could Help Wine Producers and Clinical Scientists

Nanoscale Sensor Could Help Wine Producers and Clinical Scientists

Reuters - Innovations Video Online (Jan. 30, 2015) A nanosensor that mimics the oral effects and sensations of drinking wine has been developed by Danish and Portuguese researchers. Jim Drury saw it in operation. Video provided by Reuters
Powered by NewsLook.com
Tesla 'Insane Mode' Gives Unsuspecting Passengers the Ride of Their Life

Tesla 'Insane Mode' Gives Unsuspecting Passengers the Ride of Their Life

RightThisMinute (Jan. 29, 2015) If your car has an "Insane Mode" then you know it&apos;s fast. Well, these unsuspecting passengers were in for one insane ride when they hit the button. Tesla cars are awesome. Video provided by RightThisMinute
Powered by NewsLook.com
Now Bill Gates Is 'Concerned' About Artificial Intelligence

Now Bill Gates Is 'Concerned' About Artificial Intelligence

Newsy (Jan. 29, 2015) Bill Gates joins the list of tech moguls scared of super-intelligent machines. He says more people should be concerned, but why? Video provided by Newsy
Powered by NewsLook.com
Senate Passes Bill for Keystone XL Pipeline

Senate Passes Bill for Keystone XL Pipeline

AP (Jan. 29, 2015) The Republican-controlled Senate has passed a bipartisan bill approving construction of the Keystone XL oil pipeline. (Jan. 29) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins