Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Nano rescues skin: Shrimp shell nanotech for wound healing and anti-aging face cream

Abstract:
Nanoparticles containing chitosan have been shown to have effective antimicrobial activity against Staphylococcus saprophyticus and Escherichia coli. The materials could be used as a protective wound-healing material to avoid opportunistic infection as well as working to facilitate wound healing.

Nano rescues skin: Shrimp shell nanotech for wound healing and anti-aging face cream

New York, NY | Posted on March 16th, 2012

Chitosan is a natural, non-toxic and biodegradable, polysaccharide readily obtained from chitin, the main component of the shells of shrimp, lobster and the beak of the octopus and squid. Its antimicrobial activity is well known and has been exploited in dentistry to prevent caries and as preservative applications in food packaging. It has even been tested as an additive for antimicrobial textiles used in clothing for healthcare and other workers.

Now, Mihaela Leonida of Fairleigh Dickinson University, in Teaneck, New Jersey and colleagues writing in the International Journal of Nano and Biomaterials describe how they have prepared nanoparticles of chitosan that could have potential in preventing infection in wounds as well as enhancing the wound-healing process itself by stimulating skin cell growth.

The team made their chitosan nanoparticles (CNP) using an ionic gelation process with sodium tripolyphosphate. This process involves the formation of bonds between polymers strands, a so-called cross-linking process. Conducted in these conditions it precludes the need for complex preparative chemistry or toxic solvents. CNP can also be made in the presence of copper and silver ions, known antimicrobial agents. The researchers' preliminary tests show the composite materials to have enhanced activity against two representative types of bacteria.

Understanding the mechanism of inhibition of bacteria by these particles may lead to the preparation of more effective antibacterial agents. The team has also demonstrated that the CNP have skin regenerative properties in tests on skin cell fibroblasts and keratinocytes, in the laboratory, which might even have implications for anti-aging skin care products.

"Nanocomposite materials with antimicrobial activity based on chitosan" in Int. J. Nano and Biomaterials, 2012, 3, 316-334

####

For more information, please click here

Contacts:
Mihaela D. Leonida

201-692-2338

Copyright © Inderscience Publishers

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

Researchers show what drives a novel, ordered assembly of alternating peptides February 20th, 2020

CEA-Leti and CEA-IRIG Demonstrate Quantum Integrated Circuit Combining Quantum Dot with Digital-Analog Circuits on CMOS Chip: Presentation at ISSCC 2020 Shows Role FD-SOI Can Play in Embedding Qubit Arrays with Classic Electronics to Build Large-Scale Quantum Silicon Processors February 20th, 2020

CEA-Leti Presents High-Performance Processor Breakthrough With Active Interposer and 3D Stacked Chiplets at ISSCC 2020 February 19th, 2020

New green technology from UMass Amherst generates electricity 'out of thin air' Renewable device could help mitigate climate change, power medical devices February 17th, 2020

Nanomedicine

Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain: Researchers Butantan Institute succeeded in reducing the toxicity and potentiating the analgesic effect of crotoxin by encapsulating it in nanostructured silica -- the results of tests in an anim February 14th, 2020

Gold nanoclusters: new frontier for developing medication for treatment of Alzheimer's disease February 14th, 2020

Nanotech company granted FDA Fast Track for treatment of head & neck cancer February 10th, 2020

Arrowhead Reports Interim Clinical Data on Cardiometabolic Candidates ARO-APOC3 and ARO-ANG3 February 5th, 2020

Discoveries

Researchers show what drives a novel, ordered assembly of alternating peptides February 20th, 2020

New green technology from UMass Amherst generates electricity 'out of thin air' Renewable device could help mitigate climate change, power medical devices February 17th, 2020

Does graphene cause or prevent the corrosion of copper? New study finally settles the debate: Scientists in Korea are first to observe an unprecedented way in which graphene forms a hybrid layer that prevents copper corrosion February 14th, 2020

KIST unveils the mystery of van der Waals magnets, a material for future semiconductors: Overcoming the limits of current magnetic materials, giving hope for development of next-generation semiconductors February 14th, 2020

Announcements

CEA-Leti and CEA-IRIG Demonstrate Quantum Integrated Circuit Combining Quantum Dot with Digital-Analog Circuits on CMOS Chip: Presentation at ISSCC 2020 Shows Role FD-SOI Can Play in Embedding Qubit Arrays with Classic Electronics to Build Large-Scale Quantum Silicon Processors February 20th, 2020

CEA-Leti Presents High-Performance Processor Breakthrough With Active Interposer and 3D Stacked Chiplets at ISSCC 2020 February 19th, 2020

New green technology from UMass Amherst generates electricity 'out of thin air' Renewable device could help mitigate climate change, power medical devices February 17th, 2020

KIST unveils the mystery of van der Waals magnets, a material for future semiconductors: Overcoming the limits of current magnetic materials, giving hope for development of next-generation semiconductors February 14th, 2020

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project