Featured Research

from universities, journals, and other organizations

Visualizing floating cereal patterns to understand nanotechnology processes

Date:
November 16, 2012
Source:
American Physical Society's Division of Fluid Dynamics
Summary:
Small floating objects change the dynamics of the surface they are on. This is an effect every serious student of breakfast has seen as rafts of floating cereal o’s arrange and rearrange themselves into patterns on the milk. Now scientists have suggested that this process may offer insight into nanoscale engineering processes.

Small floating objects change the dynamics of the surface they are on. This is an effect every serious student of breakfast has seen as rafts of floating cereal o's arrange and rearrange themselves into patterns on the milk. Now scientists have suggested that this process may offer insight into nanoscale engineering processes.
Credit: gwycech / Fotolia

Small floating objects change the dynamics of the surface they are on. This is an effect every serious student of breakfast has seen as rafts of floating cereal o's arrange and rearrange themselves into patterns on the milk. Now scientists have suggested that this process may offer insight into nanoscale engineering processes.

"Small objects floating on the fluid-air interface deform the surface and attract each other through capillary interactions, a phenomenon dubbed `The Cheerios Effect,''' explains student Khoi Nguyen. "Interesting motions occur here caused by attractive and repelling forces and torques. Studying how the shape of the objects influences this motion helps us understand colloidal self assembly."

Nguyen, along with graduate student Michael Miller and their advisor Shreyas Mandre, Ph.D., study "The Cheerios Effect" and will present some early findings at the American Physical Society's Division of Fluid Dynamics in San Diego, Nov. 18 -- 20.

Colloidal self assembly is a process in which nanoscale materials -- technology built to a scale of 1-100 millionths of a meter -- organize by themselves into crystalline structures. These structures can be used to efficiently and cost-effectively make many things, from pharmaceuticals to telecommunications.

The forces causing self assembly originate from the curvature of the meniscus around objects. Meniscus means "crescent" in Greek and refers to the curve in the top surface of a liquid cause by surface tension around a floating object. This curvature, and the ensuing motion, is controlled by the shape of the object.

To visualize particle motion related to the meniscus, the team cut various acrylic shapes with a laser, floated them in a Petri dish, filmed the interactions and observed. "Our goal is to optimize the force fields around objects floating on a surface, and understanding meniscus dynamics may be one way to do that," explains Miller.


Story Source:

The above story is based on materials provided by American Physical Society's Division of Fluid Dynamics. Note: Materials may be edited for content and length.


Cite This Page:

American Physical Society's Division of Fluid Dynamics. "Visualizing floating cereal patterns to understand nanotechnology processes." ScienceDaily. ScienceDaily, 16 November 2012. <www.sciencedaily.com/releases/2012/11/121116085159.htm>.
American Physical Society's Division of Fluid Dynamics. (2012, November 16). Visualizing floating cereal patterns to understand nanotechnology processes. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2012/11/121116085159.htm
American Physical Society's Division of Fluid Dynamics. "Visualizing floating cereal patterns to understand nanotechnology processes." ScienceDaily. www.sciencedaily.com/releases/2012/11/121116085159.htm (accessed April 17, 2014).

Share This



More Matter & Energy News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. Video provided by Newsy
Powered by NewsLook.com
Porsche CEO Says Supercar Is Not Dead: Cue the Spyder 918

Porsche CEO Says Supercar Is Not Dead: Cue the Spyder 918

TheStreet (Apr. 16, 2014) The Porsche Spyder 918 proves that, in an automotive world obsessed with fuel efficiency, the supercar is not dead. Porsche North America CEO Detlev von Platen attributes the brand's consistent sales growth -- 21% in 2013 -- with an investment in new technology and expanded performance dynamics. The hybrid Spyder 918 has 887 horsepower and 944 lb-ft of torque, but it can run 18 miles on just an electric charge. The $845,000 vehicle is not a consumer-targeted vehicle but a brand statement. Video provided by TheStreet
Powered by NewsLook.com
Industry's Optimism Shines At New York Auto Show

Industry's Optimism Shines At New York Auto Show

Newsy (Apr. 16, 2014) After seeing auto sales grow last month, there's plenty for the industry to celebrate as it rolls out its newest designs. Video provided by Newsy
Powered by NewsLook.com
Ford Mustang Fetes Its 50th Atop Empire State Building

Ford Mustang Fetes Its 50th Atop Empire State Building

AFP (Apr. 16, 2014) Ford celebrated the 50th birthday of its beloved Mustang by displaying a new model of the convertible on top of the Empire State Building in New York. Duration: 00:28 Video provided by AFP
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:
from the past week

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