Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Public Consultation on Scientific Basis for a Definition of the Term "Nanomaterial"

Abstract:
Public consultation on the SCENIHR pre-consultation opinion on the Scientific Basis for a Definition of the Term "Nanomaterial"

Public Consultation on Scientific Basis for a Definition of the Term "Nanomaterial"

EU | Posted on August 6th, 2010

The European Commission has requested the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) to provide advice on the essential elements of a science-based working definition of "nanomaterials" and, specifically, to identify the most appropriate metrics to define materials at nanoscale, taking into account reported size ranges and other relevant characteristics and corresponding metrics, characteristics, physico-chemical properties and thresholds.

In line with its procedures for stakeholder dialogue, published on 15 September 2007, the European Commission is launching a public consultation on the pre-consultation opinion approved by written procedure on 6 July 2010.

The services of the European Commission need to elaborate a working definition for the term "nanomaterial" to ensure the consistency of forthcoming regulatory developments to guide, as appropriate, the effective implementation of existing regulation and to contribute to international work and dialogue on nanotechnology definitions.

In order to prepare a science-based definition of nanomaterials, the services of the European Commission need clarification on the size ranges and other relevant characteristics and corresponding metrics reported in the scientific literature, the types of physical and chemical properties particular to nanomaterials, the relevant thresholds, as well as the most appropriate metrics to express such thresholds.

There is no scientific evidence in favour of a single upper limit. Moreover, there is no scientific evidence to qualify the appropriateness of the 100 nm value. Notably, defining the nanoscale as having a size between approximately 1 and 100 nanometre would not be without problems within a regulatory setting. There is a need for a more elaborate description to identify unequivocally a nanomaterial or a product containing a nanomaterial for various EU regulatory bodies.

The opinion provides advice on the essential scientific elements of a working definition for the term "nanomaterial" for regulatory purposes. Existing definitions formulated by various bodies are reviewed and discussed. Specific issues are addressed which need to be considered when a definition for nanomaterials has to be used in a regulatory setting.

By discussing various issues, several questions may be answered:
When is a material a nanomaterial?
Should there be a distinction based on the origin or application of the material?
Is there a specific size (threshold) when a material changes its properties?
In order to define an enforceable definition of "nanomaterial" for regulatory use it is proposed to set an upper limit for nanomaterial size and to add to the proposed limit additional guidance (requirements) specific for the intended regulation.

Crucial in the guidance that needs to be provided is the extended description of the nanoscale. Merely defining single upper and lower cut-off limits is not sufficient in view of the size distributions occurring in manufactured nanomaterials. Although many nanomaterials are produced for specific properties at the nanoscale, at the moment it is not possible to identify a specific size or a specific generic property that is suddenly introduced or changed with size.

Alternatively, a tiered approach may be required depending on the amount of information known for any specifically engineered nanomaterial and its proposed use.

####

For more information, please click here

Copyright © European Commission

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

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Nanotech-enabled moisturizer speeds healing of diabetic skin wounds: Spherical nucleic acids silence gene that interferes with wound healing April 24th, 2015

Fast and accurate 3-D imaging technique to track optically trapped particles April 24th, 2015

Preparing for Nano

Durnham University's DEEPEN project comes to a close September 26th, 2012

Technical Seminar at ANFoS 2012 August 22nd, 2012

Nanotechnology shows we can innovate without economic growth April 12th, 2012

Thailand to host NanoThailand 2012 December 18th, 2011

Govt.-Legislation/Regulation/Funding/Policy

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

ORNL reports method that takes quantum sensing to new level April 23rd, 2015

Electron spin brings order to high entropy alloys April 23rd, 2015

Materials/Metamaterials

Electron spin brings order to high entropy alloys April 23rd, 2015

Scientists Use Nanoscale Building Blocks and DNA 'Glue' to Shape 3D Superlattices: New approach to designing ordered composite materials for possible energy applications April 23rd, 2015

Surface matters: Huge reduction of heat conduction observed in flat silicon channels April 23rd, 2015

Nanoparticles Used to Improve Mechanical, Thermal Properties of Cellulose Fibers April 23rd, 2015

Announcements

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Nanotech-enabled moisturizer speeds healing of diabetic skin wounds: Spherical nucleic acids silence gene that interferes with wound healing April 24th, 2015

Fast and accurate 3-D imaging technique to track optically trapped particles April 24th, 2015

Safety-Nanoparticles/Risk management

MIPT researchers put safety of magic anti-cancer bullet to test April 6th, 2015

NNI Publishes Workshop Report Assessing the Status of EHS Risk Science: Report examines progress three years after the release of the 2011 NNI EHS Research Strategy March 23rd, 2015

Are current water treatment methods sufficient to remove harmful engineered nanoparticle? March 10th, 2015

More study needed to clarify impact of cellulose nanocrystals on health: Few studies explore toxicity of cellulose nanocrystals March 10th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project