Home > News > Des affections pulmonaires chez des souris
November 27th, 2009
Des affections pulmonaires chez des souris
Abstract:
Les nanotubes de carbone sont, de toutes les nanoparticules, celles qui ont fait l'objet du plus grand nombre de publications scientifiques. Même si les données toxicologiques restent très parcellaires, elles invitent à la prudence.
Certaines études ont été menées in vitro. Elles mettent en évidence "le caractère insoluble des nanotubes de carbone" et leur capacité "à pénétrer à l'intérieur des cellules et provoquer une cytotoxicité", c'est-à-dire à altérer ces cellules, résume l'Institut national de recherche et de sécurité (INRS). D'autres expériences ont été réalisées in vivo, sur des souris ou des rats auxquels ont été administrées de fortes doses de nanotubes. Conclusion : "Plusieurs études démontrent clairement la biopersistance de ces nano-objets et leur capacité à engendrer une inflammation pulmonaire ainsi qu'une fibrose." Ces premiers résultats, souligne l'INRS, "suggèrent que les nanotubes de carbone seraient potentiellement toxiques pour l'homme".
Source:
lemonde.fr
Bookmark:
| Related News Press |
News and information
Researchers develop molecular qubits that communicate at telecom frequencies October 3rd, 2025
Next-generation quantum communication October 3rd, 2025
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
Preparing for Nano
Disruptive by Design: Nano Now February 1st, 2019
How nanoscience will improve our health and lives in the coming years: Targeted medicine deliveries and increased energy efficiency are just two of many ways October 26th, 2016
Searching for a nanotech self-organizing principle May 1st, 2016
Nanotubes/Buckyballs/Fullerenes/Nanorods/Nanostrings
Enhancing power factor of p- and n-type single-walled carbon nanotubes April 25th, 2025
Chainmail-like material could be the future of armor: First 2D mechanically interlocked polymer exhibits exceptional flexibility and strength January 17th, 2025
Innovative biomimetic superhydrophobic coating combines repair and buffering properties for superior anti-erosion December 13th, 2024
Announcements
Rice membrane extracts lithium from brines with greater speed, less waste October 3rd, 2025
Researchers develop molecular qubits that communicate at telecom frequencies October 3rd, 2025
Next-generation quantum communication October 3rd, 2025
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
Environment
Researchers unveil a groundbreaking clay-based solution to capture carbon dioxide and combat climate change June 6th, 2025
Onion-like nanoparticles found in aircraft exhaust May 14th, 2025
SMART researchers pioneer first-of-its-kind nanosensor for real-time iron detection in plants February 28th, 2025
Safety-Nanoparticles/Risk management
Onion-like nanoparticles found in aircraft exhaust May 14th, 2025
Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025
 |
||
 |
||
| 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 |
||
|
|
||