Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Nanotech Innovation Keeps Surfaces Clean and Transparent

Abstract:
Hanging hundreds of feet off the ground to wash a skyscraper's windows or pumping water out to a desert solar array to keep its panels and mirrors clean is more than just a hassle—it's an expensive problem with serious ecological implications.

Nanotech Innovation Keeps Surfaces Clean and Transparent

Philadelphia, PA | Posted on December 21st, 2013

A spin-off company from Penn has found a way to solve the problem of keeping surfaces clean, while also keeping them transparent.

Nelum Sciences, created under an UPstart program in Penn's Center for Technology Transfer, has developed a superhydrophobic coating that can be sprayed onto any surface. The water-based solution contains nanoscopic particles that add a nearly invisible layer of roughness to a surface. This increases the contact angle of the material to which these particles are applied.

A contact angle is the angle the edges of a resting drop of liquid make with a surface. When the angle is low, a drop resembles a flattened hemisphere, with edges that are stuck to the surface. But as the angle increases, a drop begins to look more like a ball, until it literally rolls away instead of sticking.

When these balls of liquid roll off a superhydrophobic surface, they pick up any debris they encounter in their paths, keeping a surface clean.

Co-founded in 2011 by Shu Yang, professor of materials science and engineering in Penn's School of Engineering and Applied Science, Nelum Science's coating is based on her nanotechnology research. Fabricating the coating's nanoparticles at sizes smaller than the wavelength of light—the quality that makes them transparent—is the product of cutting-edge laboratory techniques. The company's inspiration, however, came from structures created by nature.

"Some plants, like lotuses, and other biological structures, like butterfly wings, have this kind of nano-roughness to keep them clean and dry," Yang says. "That's why we named the company after the lotus' Latin name, nelumbo."

Other superhydrophobic sprays have recently come on the market, but they give surfaces a hazy, frosted appearance, making them inappropriate for applications where cleanliness is critical, such as windows, lenses, safety goggles, and solar panels.

Text by Evan Lerner
Video by Kurtis Sensenig

####

For more information, please click here

Copyright © University of Pennsylvania

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

Multi-million pound project to use nanotechnology to improve safety September 4th, 2015

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

Tongfang Global and QD Vision Partner to Bring Wide Color Gamut to Global Television Lines: Color IQTM quantum dots help boost company’s focus on superior color reproduction September 3rd, 2015

QEOS and GLOBALFOUNDRIES to Offer Industry’s First CMOS Platform for MillimeterWave Markets: GLOBALSOLUTIONSSM Partnership will enable next-generation wireless technologies for applications in IoT, 5G and automotive September 3rd, 2015

Discoveries

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

QEOS and GLOBALFOUNDRIES to Offer Industry’s First CMOS Platform for MillimeterWave Markets: GLOBALSOLUTIONSSM Partnership will enable next-generation wireless technologies for applications in IoT, 5G and automotive September 3rd, 2015

Making nanowires from protein and DNA September 3rd, 2015

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

Materials/Metamaterials

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

Sustainable nanotechnology center September 1st, 2015

Using ultrathin sheets to discover new class of wrapped shapes: UMass Amherst materials researchers describe a new regime of wrapped shapes August 31st, 2015

An engineered surface unsticks sticky water droplets August 31st, 2015

Announcements

Multi-million pound project to use nanotechnology to improve safety September 4th, 2015

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

Making nanowires from protein and DNA September 3rd, 2015

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

Patents/IP/Tech Transfer/Licensing

An engineered surface unsticks sticky water droplets August 31st, 2015

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Industrial Nanotech, Inc. Provides Update On Hospital Project, PCAOB Audit, and New Heat Shield™ Line August 24th, 2015

Revolutionary MIT-Developed Nanotechnology Company Showcases at CAMX in Dallas August 20th, 2015

Energy

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

For 2-D boron, it's all about that base: Rice University theorists show flat boron form would depend on metal substrates September 2nd, 2015

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

RUSNANOPRIZE Directorate Announces New Deadline for Nominations Submission – September 11, 2015 September 1st, 2015

Home

Industrial Nanotech, Inc. Provides Update on PCAOB Audited Financials July 27th, 2015

Solar cells in the roof and nanotechnology in the walls June 16th, 2015

Industrial Nanotech, Inc. Continues Global Development Focus on Original Equipment Manufacturer (OEM) Applications: Industrial Nanotech Continues Connecting With Manufacturers Who Seek Out Their Patented Thermal Insulation and Protective Coatings June 11th, 2015

Industrial Nanotech, Inc. Article About the Evolution of Roof Coatings in Durability + Design Magazine June 9th, 2015

Industrial

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Industrial Nanotech, Inc. Provides Update On Hospital Project, PCAOB Audit, and New Heat Shield™ Line August 24th, 2015

'Diamonds from the sky' approach turns CO2 into valuable products August 19th, 2015

Solar/Photovoltaic

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

Hot electrons point the way to perfect light absorption: Physicists study how to achieve perfect absorption of light with the help of rough ultrathin films September 1st, 2015

Artificial leaf harnesses sunlight for efficient fuel production August 30th, 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