Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Cilia Revolution

Cilia occur on a variety of cells and unicellular organisms in nature. They primarily help collect sensory information, or produce mechanical responses that help single-celled and simple multicellular organisms spontaneously move about. For the first time, researchers have created artificial cilia. These cilia respond to changes in temperature, electromagnetic radiation and acidity by collapsing and fluorescing blue. As the environment changes back to its original state, the cilia go back to their previous state as well. Credit: Zina Deretsky, National Science Foundation
Cilia occur on a variety of cells and unicellular organisms in nature. They primarily help collect sensory information, or produce mechanical responses that help single-celled and simple multicellular organisms spontaneously move about. For the first time, researchers have created artificial cilia. These cilia respond to changes in temperature, electromagnetic radiation and acidity by collapsing and fluorescing blue. As the environment changes back to its original state, the cilia go back to their previous state as well. Credit: Zina Deretsky, National Science Foundation

Abstract:
Man-made, hair-like structures poised to change industry paradigms

Cilia Revolution

Arlington, VA | Posted on October 1st, 2010

University of Southern Mississippi scientists recently imitated Mother Nature by developing, for the first time, a new, skinny-molecule-based material that resembles cilia, the tiny, hair-like structures through which organisms derive smell, vision, hearing and fluid flow.

While the new material isn't exactly like cilia, it responds to thermal, chemical, and electromagnetic stimulation, allowing researchers to control it and opening unlimited possibilities for future use.

This finding is published in today's edition of the journal Advanced Functional Materials. The National Science Foundation's Division of Materials Research supports Southern Miss's Materials Research Science and Engineering Center for Response-Driven Polymeric Materials, where the research took place.

Cilia are wavy, hair-like structures that extend outward from the surfaces of various organisms such as human skin. People, animals and single-celled organisms use them to sense the environment, gather information about it and adapt to it.

Scientists long imagined what could be done if they could engineer cilia for other organic and nonorganic uses. But creating them solely belonged to the life nurturing processes of nature, until now. Marek Urban, Southern Miss professor of polymer science and engineering, along with a team of researchers, developed a new thin copolymer film with whisker-like formations that mimics Mother Nature.

"Our interest is in developing materials with multi-level responses at various length and time scales," said Urban. "I believe this is the future of science and engineering that will drive future technologies."

Employing a process used for years to produce latex paints, the researchers formed thin copolymer-based films whose chemical composition makes possible filaments that have built-in molecular sensors that respond to temperature, acidity and ultraviolet radiation. Moreover, the filaments are capable of locomotion, waving, shrinking and expanding in response to stimuli. They also are capable of fluorescence, that is, absorbing and emitting light and changing colors as a reaction to ultraviolet rays.

The ability to engineer this cilia-like biosensor may give scientists an ability to, for example, test for the presence of toxins, oxygen or even lack of oxygen in an environment. Future opportunities for sensor use might include developing new sensors for testing glucose levels, using the sensors for drug testing, or testing for air or water safety.

There is no limit to dreaming up applications for such a material, said Urban. "Many new ideas are being generated as we speak, but it is too early to reveal them."

Immediate next steps will be to team up engineers to make use of the materials.

Former Southern Miss graduate students Fang Liu, who now works with Proctor and Gamble, and research associate Dhanya Ramachandran contributed to this research.

####

About National Science Foundation
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2010, its budget is about $6.9 billion. NSF funds reach all 50 states through grants to nearly 2,000 universities and institutions. Each year, NSF receives over 45,000 competitive requests for funding, and makes over 11,500 new funding awards. NSF also awards over $400 million in professional and service contracts yearly.

For more information, please click here

Contacts:
Media Contacts
Bobbie Mixon, NSF (703) 292-8485

Program Contacts
Thomas P. Rieker, NSF (703) 292-4914

Principal Investigators
Marek W. Urban, The University of Southern Mississippi (601) 266-6868

Copyright © National Science Foundation

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

Spintronics for future information technologies: Spin currents in topological insulators controlled May 2nd, 2016

Nanoparticles present sustainable way to grow food crops May 1st, 2016

Searching for a nanotech self-organizing principle May 1st, 2016

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Possible Futures

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Academic/Education

JPK reports on the use of a NanoWizard AFM system at the University of Kaiserslautern to study the interaction of bacteria with microstructured surfaces April 28th, 2016

The Ottawa Hospital Research Institute uses the ZetaView from Particle Metrix to study membrane microparticles as potential biomarkers for underlying diseases April 12th, 2016

FEI Partners with Five Pharmaceutical Companies, the Medical Research Council and the University of Cambridge to form Cryo-EM Research Consortium April 5th, 2016

SUNY Poly, in Collaboration with the George Washington School of Medicine and Health Sciences and Stony Brook University, Demonstrates Pioneering Method to Visualize and Identify Engineered Nanoparticles in Tissue March 25th, 2016

Sensors

Electrically Conductive Graphene Ink Enables Printing of Biosensors April 23rd, 2016

Highlights from the Graphene Flagship April 22nd, 2016

Team builds first quantum cascade laser on silicon: Eliminates the need for an external light source for mid-infrared silicon photonic devices or photonic circuits April 21st, 2016

With simple process, UW-Madison engineers fabricate fastest flexible silicon transistor April 21st, 2016

Announcements

Spintronics for future information technologies: Spin currents in topological insulators controlled May 2nd, 2016

Nanoparticles present sustainable way to grow food crops May 1st, 2016

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Water

Nanoparticles present sustainable way to grow food crops May 1st, 2016

Novel anti-biofilm nano coating developed at Ben-Gurion U.: Offers significant anti-adhesive potential for a variety of medical and industrial applications April 25th, 2016

Adding some salt to the recipe for energy storage materials: Researchers use common table salt as growth template April 22nd, 2016

NRL reveals novel uniform coating process of p-ALD April 21st, 2016

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