PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

Sherwin-Williams


Coatings Industry News

Main News Page


New Coatings Carry a Gourmet Touch

Monday, September 16, 2013

More items for Coating Materials

Comment | More

The latest coatings research has taken a tasty turn toward ingredients that non-chemists can not only pronounce, but actually consume: Wine. Tea. Chocolate.

The new recipe comes from Northwestern University, where scientists have developed multifunctional anti-bacterial coatings based on the sticky polyphenols found in red wine, green tea, dark chocolate and cacao beans, the Evanston, IL-based university said in a press announcement.

Wine
www.photos-public-domain.com

The team put the stickiness of plant polyphenols— behind the "astringency" effect some people experience when drinking red wine high in tannins—to work in a new way.

Polyphenols are naturally occurring molecules found in plants whose functions include structural support and defense against bacteria and oxidative damage, the researchers explain.

Tannic acid and pyrogallol—inexpensive compounds resembling the more complex polyphenols found in tea, wine and chocolate—were used in the coating development, according to the scientists.

The team’s research, “Colorless Multifunctional Coatings Inspired by Polyphenols Found in Tea, Chocolate and Wine,” was published Aug. 22 in the journal Angewandte Chemie.

Sticky Coating

Dissolving polyphenol powder in water with a small amount of salt quickly produces transparent coatings that have antioxidant properties, are non-toxic, and can kill bacteria on contact, the university reported.

food packaging

KUKA Roboter Gmbh / Wikimedia Commons

The coatings could be used in the food processing and packaging industries.

The coatings can reportedly stick to virtually any surface, including Teflon, and are about 20 to 100 nanometers thick.

“The stickiness of plant polyphenols is behind the so-called astringency effect that people can experience when drinking red wine high in tannins,” explains Phillip B. Messersmith, professor of Biomedical Engineering at Northwestern’s McCormick School of Engineering and Applied Science. Messersmith led the research.

“The tannins stick to, or bind, saliva proteins, producing the sensation of puckering and dryness.

“We’ve put this stickiness to work in a novel way,” he added.

Numerous Uses

The potential uses for the coatings are numerous, including consumer, industrial and medical products, the researchers report.

Catheters and orthopedic implants to membranes for water purification and materials used in food processing, packaging and preparation were specifically mentioned. The university did not immediately respond to a request for more information regarding potential architectural uses for the coatings.

Baxter Healthcare and the National Institutes of Health supported the research.

   

Tagged categories: Antibacterial coatings; Coating chemistry; Nanotechnology; Research

Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
Mitsubishi Gas Chemical America
 
Performance Amine 1,3-BAC
 
A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.
 

 
Carboline Company
 
Carboline launches new website!
 
The completely revamped website, offers quick and easy access to essential product information and is now mobile-friendly.
 

 
Novatek Corporation
 
Dustless Coatings Removal
 
Novatek Corporation, Dustless Coatings Removal Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800 www.Novatekco.com
 

 
Industrial Vacuum Equipment Corp.
 
Hurricane Vacuums
& Dust Collectors
 
Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.com
 

 
BASF
 
New resins from BASF will have metals loving water!
 
Excellent corrosion resistance, low VOC, high gloss, thin films www.basf.us/industrialcoatings dpsolutions@basf.com 800-231-7868
 

 
Jotun Paints Inc.
 
Jotun Jotachar 1709
 
Mesh-free passive fire protection epoxy designed to protect against hydrocarbon pool fire scenarios for up to four hours as defined in the ANSI/UL1709 standard.
 

 
NLB Corporation
 
NLB Sure Shroud: Greater Protection and Flexibility
 
NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.
 

 
Blastox/The TDJ Group, Inc.
 
Blastox® - One Step Lead Abatement
 
Sandblast additive delivered to jobsite pre-blended to eliminate hazardous abrasive wastes. Why mix, meter or apply at the job-site? Blast with ease and
Let your painters paint!
1(800)-252-7869
 

 
Modern Safety Techniques
 
Modern Safety Techniques
 
With our unique LTCat, we can help to provide clean, safe breathing air to your workers. Take a look at our Breathing Air Systems, we supply at least twice as much charcoal as our competitors! Modern
 

 
SABRE Autonomous Solutions
 
Quality
 
The ALPHA1 provides a consistent finish day-in
day-out; job to job.
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy Policy (Updated 5/24/2018)   |   Terms & Conditions   |   Support   |   Site Map   |   Search   |   Contact Us