Actualités- Nanotechnologies

Thèmes Nanotechnologies: Recherche sur manipulation des nanomatériaux; Nanomatériaux et effets en application topique; ECETOC-Etude de cas sur tests de nanomatériaux; Suède- proposition de déclaration des nanomatériaux; Nanotechnologies, entre rêves et craintes; Vigilance envers nanomatériaux et risques pour la santé et l’environnement

Recherche

“Des Chercheurs Découvrent Comment Manipuler Les Nanomatériaux”
QACTU_IMG_ZOOM_743“Des chercheurs de l’Université Jiaotong de Xi’an ont mis au point une méthode de manipulation de la morphologie et des propriétés de de l’oxyde de zinc à l’échelle nanoscopique.
Le centre de recherche sur les comportements des micro et nanomatériaux de l’Université Jiaotong de Xi’an a trouvé une nouvelle méthode pour contrôler la morphologie et les propriétés de l’oxyde de zinc à l’échelle nanoscopique. Les nanofils d’oxyde de zinc à section circulaire ou hexagonale peuvent être obtenus par un léger ajustement des conditions de croissance. Une attention mondiale est portée à l’oxyde de zinc car il possède d’excellentes propriétés physico-chimiques qui permettent des applications variées, une bonne compatibilité biologique et une facilité de mise en œuvre. Cette découverte a un impact majeur pour les applications des nanofils d’oxyde de zinc dans les nano-appareils tels que les nanogénérateurs.(…)”
Sources:
http://www.diplomatie.gouv.fr/fr/politique-etrangere-de-la-france/diplomatie-scientifique/veille-scientifique-et-technologique/chine/article/des-chercheurs-decouvrent-comment-manipuler-les-nanomateriaux
http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.5b02852

Toxicologie

“Nanomaterials Very Unlikely To Damage Skin If Topically Applied, Says EPA”
Nanomaterials-very-unlikely-to-damage-skin-if-topically-applied-says-EPA_strict_xxl

“The risk of topical products containing nanomaterials, such as sunscreens, damaging or penetrating the skin is very limited, according to a new report compiled by the Danish Environmental Protection Agency.
According to the ‘Better control of nanomaterials’ initiative, the health dangers come from ingesting or inhaling, and that topical cosmetics use is generally considered safe.
Nanomaterials have been under scrutiny over recent times as there was a fear that they could enter the body through absorption through the skin. Nanomaterials such as zinc oxide are often used as UV filters in sunscreens, and the new report suggests there is no reason to doubt their safety if topically applied.
“Damage to the skin or absorption of nanomaterials through the skin is very limited,” says the EPA report. “The report stresses that on the basis of current knowledge, there is no risk associated with the uptake of nanomaterials through the skin. “
The report goes on to highlight the benefits of using sunscreen and that these benefits need to be compared to the possible risks associated with exposure by ingestion.
The study only slight concern raised by the EPA, is that one of the studies it looked at indicates that based on conservative worst-case assumptions, nanomaterials in sunscreen products may be ingested (one example is sun protecting lip balm) and that this can be linked with a possible risk.
The initiative also suggests that there is no significant risk to the freshwater environment from current usage of nanomaterials and their potential for release to the environment. (…)”
Sources:
http://www.cosmeticsdesign-europe.com/Regulation-Safety/Nanomaterials-very-unlikely-to-damage-skin-if-topically-applied-says-EPA/
http://www2.mst.dk/Udgiv/publications/2015/12/978-87-93352-89-6.pdf

« ECETOC Publishes Case Studies On Nanomaterials Grouping And Testing »
ecetoc« The European Centre for Ecotoxicology and Toxicology of Chemicals (ECETOC) has published case studies on the grouping and testing of nanomaterials. They are based on the decision-making framework it published earlier this year (
The centre says that for 21 of the 24 materials tested, the non-animal testing tiers correctly predicted the outcome of the animal tests. As a result, it says, the framework will allow nanomaterials to be assessed with animal testing as « a very last resort ». (…) »
Sources :
https://chemicalwatch.com/44271/ecetoc-publishes-case-studies-on-nanomaterials-grouping-and-testing
http://www.ecetoc.org/index.php?mact=Newsroom,cntnt01,details,0&cntnt01documentid=291&cntnt01dateformat=%25d-%25m-%25Y&cntnt01returnid=76
http://www.sciencedirect.com/science/article/pii/S0273230015301355
http://www.ecetoc.org/uploads/Newsroom/Press/Press%20releases/ECETOC%20Arts%20et%20al%202015b%20in%20a%20nutshell.pdf

Réglementations

“The Swedish Chemicals Agency Proposes Reporting Requirements For Nanomaterials”

kemi

“The Swedish Chemicals Agency proposes that companies should have a duty to report if chemical products contain nanomaterials. The aim of this proposal is to improve knowledge about which nanomaterials there are on the Swedish market.
“Research has shown that nanomaterials might pose a threat to health and the environment, but there is currently insufficient knowledge in this area. Reporting requirements would enable us to obtain more information on the quantities and types of nanomaterials used in Sweden,” says Victor Björkgren, Scientific Officer at the Swedish Chemicals Agency and Project Manager for the government assignment on nanomaterials.

There has been a long-standing requirement in Sweden for companies to register the content of their chemical products to the Swedish Chemicals Agency’s Products Register, but no special mention of nanomaterials has been required. The Swedish Chemicals Agency’s proposal, which is being submitted to the government today, means that companies reporting products to the Products Register must also state whether these products contain nanomaterials.
“By having reporting requirements for nanomaterials, we will be well prepared should new research show that there are problems with nanomaterials of which we are not aware at present. The information compiled in the Products Register would give us a good basis on which to make changes to legislation or take other measures in the future, if these are needed,” says Victor Björkgren.

The Swedish Chemicals Agency proposes that companies with a turnover of less than SEK 5 million per year should be exempted from the reporting requirement during a period of evaluation. These companies should only need to tick a box if they believe that their products contain nanomaterials. During the period of evaluation, the same exemption should also apply to nanomaterials in the form of pigment.
In January 2015 the Swedish Chemicals Agency was assigned by the government to investigate a way of formulating the reporting requirement to provide information on nanomaterials in chemical products and articles. The response being provided to the government today also includes proposals for statutory changes, an impact assessment and an analysis of the EU legislation. Several other EU countries have already introduced or are planning to introduce their own solutions for gathering information on nanomaterials. The European Commission is also investigating a possible common register within the EU. (…)”
Sources:
http://www.kemi.se/en/news-from-the-swedish-chemicals-agency/2015/the-swedish-chemicals-agency-proposes-reporting-requirements-for-nanomaterials/
http://www.kemi.se/en/global/rapporter/2015/rapport-10-15-forslag-om-utokad-anmalningsplikt-for-nanomaterial.pdf
http://is.gd/3mLGtR
www.mychemicalmonitoring.eu/dap/files/201512-Kemi-nano.pdf

Conférence

“Les Nanotechnologies : Entre Rêves Et Craintes”
Nanotechnologies-300x159

“Dialogue entre chercheurs, professionnels et étudiants autour de l’innovation responsable
Organisateurs : Ecole Centrale de Nantes et Audencia; Nantes, Vendredi 8 janvier 2016 – 14h-18h
Après le génie génétique, les nanotechnologies semblent ouvrir une nouvelle ère scientifique tant leurs potentialités semblent grandes et le champ d’application, résolument multidisciplinaire, infini. L’envergure des programmes de recherche publics ou privés et des budgets alloués semble aller de pair avec les promesses annoncées mais certaines réserves ou inquiétudes se font aussi entendre de la part de diverses parties prenantes.(…)”
Source:
http://rnb.audencia.com/les-nanotechnologies-entre-reves-et-craintes-entre-reves-et-craintes/

Publication

“Nanomatériaux Et Risques Pour La Santé Et L’environnement – Soyons Vigilants !”
LivreSoyonsVigilants_COUV_nanomateriaux_small_20151022140619_20151022140637

“Livre à paraitre aux Editions Yves Michel en février 2016.
Réalisé par Avicenn avec le soutien du ministère de l’Ecologie, du développement durable et de l’énergie, de la Fondation de France, du Centre Médical Inter-Entreprises Europe (CMIE) et du Conseil Régional Rhône-Alpes.
Les nanomatériaux sont très présents dans nos vies : comment les repérer, et quelles sont leurs conséquences sur notre santé ?
Dans de nombreux domaines – automobile, cosmétiques, pharmacie, optique, agriculture et alimentation, etc. – les industriels font de plus en plus appel aux nanotechnologies qui bénéficient de financements publics et privés conséquents.
Or, les impacts sanitaires et environnementaux des nanomatériaux sont encore insuffisamment développés, mais déjà des effets néfastes très préoccupants ont été mis en évidence : les nanomatériaux ont été reconnus comme toxiques pour les tissus humains et les cellules en culture. La dissémination à large échelle de nanoparticules dans l’environnement est elle aussi problématique. Aucune réelle restriction n’est aujourd’hui mise en œuvre par les pouvoirs publics.
Par ailleurs, il n’y a pas de traçabilité ni d’étiquetage fiables : il est aujourd’hui impossible d’identifier l’immense majorité des produits aujourd’hui commercialisés contenant des nanomatériaux.
Ce livre s’adresse aux citoyens, mais aussi aux associations impliquées dans les secteurs de la consommation, de santé et de l’environnement, ainsi qu’aux acteurs du domaine de la santé au travail. Pour que la vigilance soit de mise, chez vous, pendant vos courses et sur votre lieu de travail !(…)”
Sources:
http://veillenanos.fr/wakka.php?wiki=LivreSoyonsVigilants
http://www.yvesmichel.org/product-page/livres-a-paraitre/nanomateriaux-et-risques-pour-la-sante-et-lenvironnement/

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