Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Production and Characterization of Polymer Microspheres Containing Trace Explosives Using Precision Particle Fabrication Technology

Published

Author(s)

Matthew E. Staymates, Robert A. Fletcher, Jessica L. Staymates, John G. Gillen, Cory Berkland

Abstract

Well characterized test materials are essential for validating the performance of current trace explosive detection systems. These test materials must replicate trace explosive contamination in the form of small particles with characteristic diameters in the micrometer range. In this work, Precision Particle Fabrication was used to fabricate monodisperse polymer microspheres that contain high explosives. Three high explosives were successfully incorporated into the microspheres. Ion mobility spectrometry confirmed that the encapsulation efficiency was typically greater than 50% with some loss to the aqueous phase during production. We demonstrate that, with this technique, polymer microspheres containing explosives can be produced with sufficient encapsulation, along with tightly controlled particle size distributions at high production rates. These microspheres have proven to be a valuable test material for trace explosive detectors because of their highly precise size, shape, and explosive composition.
Citation
Journal of Microencapsulation
Report Number
902104
Volume
27
Issue
5

Keywords

explosives, ion mobility spectrometry, microspheres, standards, trace detection

Citation

Staymates, M. , Fletcher, R. , Staymates, J. , Gillen, J. and Berkland, C. (2010), Production and Characterization of Polymer Microspheres Containing Trace Explosives Using Precision Particle Fabrication Technology, Journal of Microencapsulation, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902104 (Accessed July 3, 2022)
Created August 2, 2010, Updated February 19, 2017