Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Oh, Christmas tree, oh Christmas tree: A nano end for Christmas tree needles

Abstract:
As Twelfth Night approaches and the Christmas decorations start to look increasingly congruous as the last crumbs of cake are swept away and the remnants of the turkey have finally been consumed, there is the perennial question as to what to do with the tree. Research published in the International Journal of Biomedical Nanoscience and Nanotechnology suggests that the needles of the plant Pseudotsuga menziesii, commonly known as the Douglas fir could be used to sterilize nano devices destined for medical applications.

Oh, Christmas tree, oh Christmas tree: A nano end for Christmas tree needles

Olney, UK | Posted on January 2nd, 2013

Chemist Poushpi Dwivedi of MNNIT in Allahabad, India, and colleagues explain that one of the most troubling problems in biomedicine is bacterial infection at the site of implanted medical devices, prosthetics and sensors. They explain that despite advances in sterilization procedures and aseptic measures pathogenic microbes can still invade biomaterials and tissues. The researchers are developing an antimicrobial, self-sterilizing composite material derived from Douglas fir needles that is essentially a silver/chitosan bionanocomposite that can be used to safely coat medical implants and surgical devices to preclude microbial growth.

The team points out that silver nanoparticles have been tested widely for their potential as antimicrobial agents given that silver is well known to have bactericidal properties. They point out that using biological agents has come to the fore as an efficient and effective way to make novel types of silver nanoparticles with uniform size and shape and biocompatible surfaces for use in medicine. The team has now used an extract from Pseudotsuga menzietii together with silver nitrate solution to generate nanoparticles. These particles can then be readily dispersed in chitosan polymer to make a material that can coat metals and other materials. The plant extract acts as a natural chemical reducing agent to convert the silver ions in the nitrate solution to nanoscopic silver metal particles.

"The size and the percentage of the particles produced can be easily controlled, according to the requirement, by the initial concentration of the metal precursor and volume of the plant biomass," the team explains. So, as you are sweeping up the last fallen needles from your Christmas tree come Twelfth Night, think on, those needles could underpin the next medical shot in the arm.

"Potentiality of the plant Pseudotsuga menzietii to combat implant-related infection in the nanoregime" in Int. J. Biomedical Nanoscience and Nanotechnology, 2012, 2, 187-206.

####

For more information, please click here

Contacts:
Albert Ang

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

HKUST researchers develop a novel integration scheme for efficient coupling between III-V and silicon November 18th, 2022

Researchers at Purdue unlock light-matter interactions on sub-nanometer scales, leading to ‘picophotonics’ November 18th, 2022

Rice turns asphaltene into graphene for composites: ‘Flashed’ byproduct of crude oil could bolster materials, polymer inks November 18th, 2022

How “2D” materials expand: New technique that accurately measures how atom-thin materials expand when heated could help engineers develop faster, more powerful electronic devices November 18th, 2022

Nanomedicine

Cutting-edge combination shows promise in patients with chemotherapy-resistant urothelial cancer November 4th, 2022

Advanced nanoparticles provide new weapon to fight difficult cancers: Researchers use nanoparticles to deliver a bacterially derived compound that targets the STING pathway to suppress tumor growth and metastasis by disrupting blood vessels and stimulating immune response October 28th, 2022

Smart materials: metal cations-recognizable thermoresponsive polymers: Osaka Metropolitan University scientists developed a novel polymer, the thermoresponsiveness of which can easily be regulated by changing the type and mixing ratio of ionic species October 14th, 2022

Quantum-Si’s next-generation single-molecule protein sequencing technology published in Science, signaling new era of life science and biomedical research: Semiconductor chip and Time Domain Sequencing™ technology will advance drug discovery and diagnostics, enabling people to li October 14th, 2022

Announcements

HKUST researchers develop a novel integration scheme for efficient coupling between III-V and silicon November 18th, 2022

NIST’s grid of quantum islands could reveal secrets for powerful technologies November 18th, 2022

A new experiment pushes the boundaries of our understanding of topological quantum matter: The behavior of bosonic particles observed in a magnetic insulator fabricated from ruthenium chloride can be explained by a relatively new and little-studied physics phenomenon called the B November 18th, 2022

How “2D” materials expand: New technique that accurately measures how atom-thin materials expand when heated could help engineers develop faster, more powerful electronic devices November 18th, 2022

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

An on-chip time-lens generates ultrafast pulses: New device opens the doors to applications in communication, quantum computing, astronomy November 18th, 2022

Researchers at Purdue unlock light-matter interactions on sub-nanometer scales, leading to ‘picophotonics’ November 18th, 2022

Rice turns asphaltene into graphene for composites: ‘Flashed’ byproduct of crude oil could bolster materials, polymer inks November 18th, 2022

How “2D” materials expand: New technique that accurately measures how atom-thin materials expand when heated could help engineers develop faster, more powerful electronic devices November 18th, 2022

Human Interest/Art

Drawing data in nanometer scale September 30th, 2022

Scientists prepare for the world’s smallest race: Nanocar Race II March 18th, 2022

Graphene nanotubes revolutionize touch screen use for prosthetic hands August 3rd, 2021

JEOL Announces 2020 Microscopy Image Grand Prize Winners January 7th, 2021

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