Home > Press > Diacetylene-Containing Ligand As a New Capping Agent for the Preparation of Water-Soluble Colloidal Nanoparticles of Remarkable Stability
 |
Abstract:
Dr. Antonios G. Kanaras and co-workers from the University of Southampton reported a new approach to create colloidal nanoparticles of remarkable stability resistant to pH changes, temperature, and ionic strength variations as well as ligand-exchange reactions.
Diacetylene-Containing Ligand As a New Capping Agent for the Preparation of Water-Soluble Colloidal Nanoparticles of Remarkable Stability
UK | Posted on June 4th, 2010"Our technology holds a great promise to solve the long-standing problem of nanoparticle stability and open-up new avenues in biomedical applications that employ nanoparticles" Kanaras says.
The article was published at the ACS Journal Langmuir (pubs.acs.org/doi/abs/10.1021/la9044013)and describes a new type of ligand that can be used as a monomer to first coat the nanoparticles and then photo-polymerized upon UV-irradiation, embedding the particles in a stable organic shell. The ligand consists of an anchoring thiol group, which binds directly to the nanocrystal surface and two units, one hydrophobic and one hydrophilic. The hydrophobic alkyl unit contains a diacetylene group, which undergoes a 1,4-topochemical polymerization leading to a poly(enyne) structure during UV-irradiation. The hydrophilic unit contains an oligo-ethylene glycol chain, which ensures water solubility, and a terminal carboxylic group.
It is anticipated that the reported technology will be adopted to coat and other types of nanoparticles such as the famous 'quantum dots'.
####
For more information, please click here
Contacts:
Antonios Kanaras
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Bookmark:
| Related News Press |
News and information
Drawing data in nanometer scale September 30th, 2022
Researchers unveil mystery inside Li- o2 batteries September 30th, 2022
Synthesis of air-stable room-temperature van der Waals magnetic thin flakes September 30th, 2022
Possible Futures
Researchers unveil mystery inside Li- o2 batteries September 30th, 2022
Synthesis of air-stable room-temperature van der Waals magnetic thin flakes September 30th, 2022
Layer Hall effect and hidden Berry curvature in antiferromagnetic insulators September 30th, 2022
Materials/Metamaterials
Wrapping of nanosize copper cubes can help convert carbon dioxide into other chemicals September 23rd, 2022
Upgrading your computer to quantum September 23rd, 2022
Announcements
Researchers unveil mystery inside Li- o2 batteries September 30th, 2022
Synthesis of air-stable room-temperature van der Waals magnetic thin flakes September 30th, 2022
Layer Hall effect and hidden Berry curvature in antiferromagnetic insulators September 30th, 2022
Quantum Dots/Rods
Research improves upon conventional LED displays: With new technology, LEDs can be more cost-efficient and last longer September 9th, 2022
Lattice distortion of perovskite quantum dots induces coherent quantum beating September 9th, 2022
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||