Enhanced surface sampler and process for collection and release of analytes
AssigneeBattelle Memorial Institute
InventorsRaymond S. Addleman, David A. Atkinson, John T. Bays, Wilaiwan Chouyyok, Anthony D. Cinson, Robert G. Ewing, Aleksandr A. Gerasimenko
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Abstract
An enhanced swipe sampler and method of making are described. The swipe sampler is made of a fabric containing selected glass, metal oxide, and/or oxide-coated glass or metal fibers. Fibers are modified with silane ligands that are directly attached to the surface of the fibers to functionalize the sampling surface of the fabric. The swipe sampler collects various target analytes including explosives and other threat agents on the surface of the sampler.
Claims29
A sampling device, comprising:
- a fabric of a selected thickness comprising selected glass and/or metal oxide and/or oxide-coated glass or metal fibers therein with selected silane ligands directly attached to the surface thereof defining a functionalized surface on said fabric, said fabric with said functionalized surface collects and retains an analyte(s) thereon upon contact with same.
A method of making, comprising the steps of:
- silanizing a fabric of a selected thickness comprising selected glass and/or metal oxide and/or oxide-coated metal fibers therein by directly attaching silane ligands of at least one type to surfaces of said fibers forming a functionalized sampling surface on said fabric with an affinity to collect an analyte(s) thereon upon contact with same and an ability to release same at a selected release condition therefrom that is greater than a cellulosic material.
A method of use, comprising the steps:
- collecting an analyte(s) on a sampler comprising a fabric composed of selected glass, and/or metal oxide and/or oxide-coated metal fibers therein with silane ligand(s) comprising terminal group(s) directly attached to the surfaces of said fibers defining a sampling surface on said sampler;
- and
- releasing the analyte(s) from the sampling surface of the sampler for detection of the analyte(s).
Dependencies are inferred from the claim text.