To improve the user experience of our web-site, we use cookies. Through visiting our website, you accept that cookies will be saved on your computer, smartphone, tablet.
Wir verwenden Cookies, um unsere Webseiten besser an Ihre Bedürfnisse anpassen zu können. Durch die Nutzung unserer Webseiten akzeptieren Sie die Speicherung von Cookies auf Ihrem Computer, Tablet oder Smartphone.
Friday, 10 April 2020
Blue Red Green

tooth fairy coins

Chemistry: Giant hyperthermal effect in Mg-doped Fe3O4 - Friday, 09 February 2018 11:36
Biology: Nanodiamonds for antibacterial implants - Monday, 02 November 2015 21:41
Ecology: Nano-products risks overexaggerated - Tuesday, 24 June 2014 11:02

Are nano-products really so dangerous?

silver nanoparticles textilesThe increasing concerns of the society about the possible risks associated with the use of nanoparticles, and especially silver nanoparticles in textiles, necessitates a closer scientific look at the possible risks associated with the use of nano-enabled products.

A group of scientists from Swiss Federal Laboratories for Materials Science and Technology, have performed an exhaustive study on the release of silver from textiles treated with either silver nanoparticles or by a "conventional silver" impregnation, which is being in use since 1950-s. Several different silver-containing fabrics were compared.

The results published in ACS Nano indicate that the leakage of silver nanoparticles from NP-treated textiles is an order of magnitude lower than from the conventionally treated fabrics. Although the conventional process doesn't target on the formation of nanoparticles "in" or "on" textile fibres, the lower stability of the silver forms used for fabrication of such textiles, leads to the formation of silver nanoparticles during the washing process.

" this study, we observed, that textiles treated with "conventional" silver have equal or greater propensity to form nanosilver particles during washing than those treated with "nano" silver", tells Dr. B. Nowak.

This study clearly shows how exaggerated can be the fears of the community and governments' suspicions about the nanotechnologies. It is obvious that risks associated with any new material shall be studied, but  such a fierce and militant zeal with a cheeky and provocative media support is just not acceptible.


Image source: ACS Nano
(C) NanoJam, 2014

Add comment

Security code

Banner 955