Collection, release, and detection of analytes with polymer composite sampling materials

Patent metadata

Field	Value
Publication number	US-12548748-B2
Application number	US-202318106937-A
Country	US
Kind code	B2
Filing date	Feb 7, 2023
Priority date	Apr 21, 2015
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

A unique fiber core sampler composition, related systems, and techniques for designing, making, and using the same are described. The sampler is used to interface with existing field instrumentation, such as Ion Mobility Spectrometer (IMS) equipment. Desired sampler characteristics include its: stiffness/flexibility; thermal mass and conductivity; specific heat; trace substance collection/release dependability, sensitivity and repeatability; thickness; reusability; durability; stability for thermal cleaning; and the like. In one form the sampler has a glass fiber core with a thickness less than 0.3 millimeter that is coated with a polymer including one or more of: polymeric organofluorine, polyimide, polyamide, PolyBenzImidazole (PBI), PolyDiMethylSiloxane (PDMS), sulfonated tetrafluoroethylene (PFSA) and Poly(2,6-diphenyl-p-phenylene Oxide) (PPPO). Multiple polymer coatings with the same or different polymer types may be included, core/substrate surface functionalization utilized, and/or the core/substrate may be at partially filled with thermally conductive particles.

First claim

What is claimed is:

1 . A kit configured to provide items to test for presence of one or more substances using an ion mobility spectrometer, the kit comprising:
a sampler configured to collect the one or more substances and release the one or more substances by thermal desorption for analysis using the ion mobility spectrometer, wherein the sampler comprises a fabric woven with fibers and a polymer applied thereto, the fabric having a thickness of less than or equal to about 0.3 mm; wherein the fibers comprise one or more of: HSG, carbon, metal, ceramic, glass-ceramic, and metal oxide; the polymer comprises one or more of: polymeric organofluorine, polyamide, polyimide, PFSA, PBI, PDMS, and PPPO; and one or more of: a calibration device, at least one glove, at least one finger cot, at least one consumable for the ion mobility spectrometer, pressurized air, and a cleaning consumable.

2 . The kit of claim 1 , in which the polymer applied thereto is in a range of about 20% wt through about 40% wt for each of the samplers, the polymer amount being determined for relative to weight of a corresponding one of the samplers to which the polymer has been applied.

3 . The kit of claim 1 , further comprising a wand to carry the sampler and collect the one or more substances by applying suction.

4 . The kit of claim 1 , wherein the sampler has a flexural modulus in a range of about 0.75 GPa through about 10 GPa.

5 . The kit of claim 1 , wherein the sampler comprises S-glass, a closed weave of the 4 HS type, and a flexural modulus that is less than or equal to 2 GPa.

6 . The kit of claim 1 , wherein the polymer of the sampler includes a first polymer layer and a second polymer layer deposited on the first polymer layer, the first polymer layer and the second polymer layer each having a different composition.

7 . The kit of claim 1 , wherein the sampler comprises a closed weave of at least one of: a satin weave and a twilled weave.

8 . The kit of claim 1 , wherein the sampler comprises a fabric having at least a portion of the fibers functionalized with a silanization reaction.

9 . The kit of claim 1 , wherein the sampler comprises a fabric being at least partially filled with nanoparticles comprised of one or more of: metal, metal oxide, and/or carbon.

Assignees

• Battelle Memorial Institute

Inventors

• Addleman Raymond S
• Li Xiaohong Shari
• Chouyyok Wilaiwan
• Atkinson David A

Classifications

• G01N2001/007

  Devices specially adapted for forensic samples, e.g. tamper-proofing, sample tracking · CPC title

• G01N2001/027

  field kits / quick test kits · CPC title

• B05D3/0254

  After-treatment · CPC title

• B05D2518/12

  Ceramic precursors (polysiloxanes, polysilazanes) · CPC title

• B05D2203/30

  Other inorganic substrates, e.g. ceramics, silicon · CPC title