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Highly Absorptive Nanostructured Chemical Wipe

Award Information
Agency: Department of Homeland Security
Branch: N/A
Contract: D11PC20242
Agency Tracking Number: DHS SBIR-2011.2-H-SB011.2-002-0007-I
Amount: $99,967.16
Phase: Phase I
Program: SBIR
Solicitation Topic Code: H-SB011.2-002
Solicitation Number: N/A
Solicitation Year: 2011
Award Year: 2011
Award Start Date (Proposal Award Date): 2011-09-22
Award End Date (Contract End Date): 2012-04-30
Small Business Information
Norwood, MA 02062-2612
United States
DUNS: 076603836
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Michael Wilson
Business Contact
 David Rauh
Research Institution

Wipe sampling provides a convenient method for determining if a surface is contaminated by chemical warfare agents (CWAs). In wipe sampling, a
pad is wetted with solvent and wiped over the surface of interest. The pad is then extracted and the extract is analyzed for the presence of the
contaminant. Many of the surfaces that are sampled in an emergency response, cleanup or clearance scenario are porous or absorptive. The removal of
low-volatility chemicals by wipes from these surfaces is significantly more challenging than from hard, non-absorptive surfaces.
We propose to develop a chemical wipe that removes significantly more contaminant from porous surfaces than is removed by currently available
wipes. The new wipes will have structures that provide increased capillary action, absorptive capacity and the ability to penetrate into surface pores. In
the Phase 1, we will fabricate wipes and rigorously measure their ability to wipe-sample a nerve agent stimulant from concrete and painted wallboard.
The results will be compared to those obtained using standard cotton wipes. In the Phase II, we will optimize the wipe fabrication and perform
extensive wipe-sampling evaluation using a wider range of surfaces and contaminants.
The initial market for the wipes will be for the detection of CWA residue. However, the wipe pads will also be of significant value in other industries
such as environmental monitoring, industrial hygiene, and security, as well as having use in the household markets. The technology will also likely have
applications in protective fabrics and decontamination materials.

* Information listed above is at the time of submission. *

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