Device for detecting and decontaminating hazardous chemicals

Patent metadata

Field	Value
Publication number	US-9925520-B1
Application number	US-201715711195-A
Country	US
Kind code	B1
Filing date	Sep 21, 2017
Priority date	Jun 12, 2015
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A method and composition of matter for detecting and decontaminating hazardous chemicals, the composition of matter including: a magnetic material for any of chemisorbing, molecularly dissociating, or decomposing a hazardous chemical, wherein the magnetic material changes its magnetic moment upon any of chemisorption, decomposition, and molecular dissociation of the hazardous chemical and the change in magnetic moment is used to detect the presence of the hazardous chemical, and wherein the hazardous chemical includes any of toxic industrial chemicals, chemical warfare agents, and chemical warfare agent related compounds.

First claim

What is claimed is:

1. A device for detecting and decontaminating hazardous chemicals, comprising:
a substrate supporting a magnetic material fabricated as a thin film on said substrate;
a circuit board, wherein said substrate is placed on said circuit board;
a rare-Earth magnet connected to said circuit board;
an inductor capacitor (LC) circuit detector connected to said circuit board, wherein said LC circuit is configured to measure a change in a signal from said magnetic thin film upon any of chemisorption, decomposition, and molecular dissociation of a hazardous chemical, causing a change in magnetic moment in said magnetic material, and said change in signal is used to detect the presence of the hazardous chemical.

2. The device of claim 1 , further comprising:
a source and a detector equipped with a fiber optic cable and configured to monitor said any of chemisorption, decomposition, and molecular dissociation of said hazardous chemical, wherein said source comprises any of an infrared (IR) source, an ultraviolet visible (UV-Vis) source, and a Raman source, and wherein said detector comprises any of an IR detector, an UV-Vis detector, and a Raman detector.

3. The device of claim 2 , wherein said rare Earth magnet, said LC, said IR source, said IR detector, said UV-Vis source, said UV-Vis detector, said Raman source, and said Raman detector are configured to measure a toxic analyte of interest of said hazardous chemical.

4. The device of claim 2 , wherein:
said magnetic material fabricated upon said substrate is configured to provide any of colorimetric response upon sensitivity and reactivity with said toxic analyte of interest; and
said fiber optic cable is configured to provide optical transport from measurements collected via any of said IR, UV-Vis, and Raman spectra.

5. The device of claim 1 , wherein said magnetic material is configured to provide changes in a field comprising any of a magnetic moment, an IR spectrum, a UV-Vis spectrum, and Raman spectrum.

6. The device of claim 1 , wherein said hazardous chemical comprises any of a chemical warfare agent, a chemical warfare agent related compound, and a toxic industrial chemical.

Assignees

• U S Army Edgewood Chemical Biological Center
• Us Army

Inventors

• Soliz Jennifer R
• Karwacki Christopher J

Classifications

• B01D2257/2066

  Fluorine · CPC title

• A62D2101/02

  Chemical warfare substances, e.g. cholinesterase inhibitors · CPC title

• B01D2259/4583

  for removing chemical, biological and nuclear warfare agents · CPC title

• C01G49/0054

  containing one rare earth metal, yttrium or scandium · CPC title

• G01N27/72

  by investigating magnetic variables · CPC title