Featured Research

from universities, journals, and other organizations

Physicist Make Droplets Dance Above A Surface

Date:
November 20, 2008
Source:
Institute of Physics
Summary:
Physicists can now make droplets dance, float and bounce above a surface, keeping small amounts of fluid free of contamination and ripe for testing.

Lab technicians can now make droplets dance, float and bounce above a surface, keeping small amounts of fluid free of contamination and ripe for testing.
Credit: Image courtesy of Institute of Physics

Our blood, sweat and tears are three precious fluids that can answer lots of questions about the state of our health but testing small amounts of bodily fluids, without contaminating them through contact with solid surfaces or other fluids, is something that fluid mechanics have long pondered.

Related Articles


A group of physicists from the University of Liege, Belgium, is publishing research in the New Journal of Physics today, Tuesday, 18 November, which shows how lab technicians can make droplets dance, float and bounce above a surface, keeping small amounts of fluid free of contamination and ripe for testing.

Several years ago, acoustic levitation was introduced to keep a droplet separate from its surroundings but the equipment required for this is complex, big and expensive. Alternatively, the technique of bouncing droplets was introduced in 2005 but until now it could only be used on a specific range of droplets with high viscosity.

The new technique which the physicists began work on three years ago, when one of the researchers noticed that certain bass notes emanating from his iPod speaker could make droplets 'roll' and appear to dance, works for a much larger range of viscosity fluids than previous techniques and also for a larger range of droplet size – making it much more useful for chemists, biologists and food scientists.

The technique is simple and does not require complex machinery – droplets can be released over a bath of oil that is vertically shaken and under certain conditions of vibration and droplet size, droplets will bounce, float and dance.

As the researchers write, "In the miniaturisation age, the manipulation of tiny quantities of liquid becomes more and more important in chemistry, biology, health sciences and the food industry. The technique we propose allows the manipulation of droplets without any contact with another liquid or solid. The droplets bounce, float and move into the air."


Story Source:

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


Cite This Page:

Institute of Physics. "Physicist Make Droplets Dance Above A Surface." ScienceDaily. ScienceDaily, 20 November 2008. <www.sciencedaily.com/releases/2008/11/081118071134.htm>.
Institute of Physics. (2008, November 20). Physicist Make Droplets Dance Above A Surface. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2008/11/081118071134.htm
Institute of Physics. "Physicist Make Droplets Dance Above A Surface." ScienceDaily. www.sciencedaily.com/releases/2008/11/081118071134.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Building Google Into Cars

Building Google Into Cars

Reuters - Business Video Online (Dec. 19, 2014) Google's next Android version could become the standard that'll power your vehicle's entertainment and navigation features, Reuters has learned. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
AP Review: Nikon D750 and GoPro Hero 4

AP Review: Nikon D750 and GoPro Hero 4

AP (Dec. 19, 2014) What to buy an experienced photographer or video shooter? There is some strong gear on the market from Nikon and GoPro. The AP's Ron Harris takes a closer look. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
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