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Atomically Traceable Nanostructure Fabrication
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Published on: July 17, 2015

Toward advancing nano-object count metrology: a best practice framework.

Scott C Brown1, Volodymyr Boyko, Greg Meyers

  • 1Corporate Center for Analytical Sciences, DuPont Central Research and Development, Wilmington, Delaware, USA.

Environmental Health Perspectives
|October 1, 2013
PubMed
Summary
This summary is machine-generated.

Current challenges in nanomaterial metrology hinder regulatory efforts. Harmonized methods are needed for accurate size and count identification to support sustainable nanotechnology development.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • International agencies are considering classifying materials based on sub-100-nm particle number content.
  • This classification has significant implications for sustainable nanotechnology development.

Purpose of the Study:

  • Highlight metrology challenges in particle size analysis for the chemical industry.
  • Propose a best-practice framework for nano-object identification.
  • Identify research needs for advancing nanomaterial characterization.

Main Methods:

  • Review of current particle size metrology techniques.
  • Development of a tiered framework for material evaluation.
  • Analysis of existing regulatory thresholds for nanomaterials.

Main Results:

  • Existing methods for identifying nanomaterials by size and count are not harmonized for real-world samples.
  • Inconsistencies in size metrology complicate policy and decision-making.
  • Current metrology may impede the development of sustainable nanotechnologies.

Conclusions:

  • Harmonized methods for nanomaterial identification are currently lacking.
  • A tiered approach for material evaluation is proposed.
  • Further research and industry-academia cooperation are essential for developing robust metrology frameworks.