Abstract: Articles and methods involving filter media are generally provided. In certain embodiments, a filter media has a design and/or comprises one or more layers that enhances its efficiency and/or performance.

Abstract: Filter media including fibers comprising a matrix polymer and impact modifier, and related methods, are generally described.

Abstract: Filter media comprising one or more layers comprising nanofibers are generally described. In some embodiments, a filter media comprises a layer comprising nanofibers. The nanofibers may comprise an elastomer, a multiblock copolymer, and/or a multiblock copolymer that is an elastomer.

Abstract: Articles and methods relating to filter media are generally provided. In some embodiments, a filter media comprises a non-woven fiber web and a backer layer. The non-woven fiber web may comprise a plurality of continuous nanofibers, e.g., continuous nanofibers having an average diameter of less than or equal to 250 nm. The plurality of the nanofibers may comprise a plurality of nanoparticles at least partially embedded therein. In some embodiments, the plurality of nanoparticles makes up less than or equal to 15 wt % of the plurality of nanofibers. In some embodiments, a solidity of the non-woven fiber web is less than or equal to a solidity of the backer layer.

Abstract: Polyethersulfone fiber webs are described.

Abstract: Sensors for the detection of free radicals and free radical forming compounds including, for example, peroxides, as well as energetic radiation, UV light, plasma or heat each such sensor including a functional component are described herein. In addition, this disclosure includes methods for making such sensors and methods for using sensors including a functional component and devices incorporating such sensors.

Abstract: Embodiments of the invention described herein include metamaterials that exhibit negative permittivity and negative permeability at optical frequencies, methods for preparing such materials, and devices prepared from same.

Abstract: Embodiments of the invention described herein include metamaterials that exhibit negative permittivity and negative permeability at optical frequencies, methods for preparing such materials, and devices prepared from same.

Abstract: Embodiments of the invention described herein include metamaterials that exhibit negative permittivity and negative permeability at optical frequencies, methods for preparing such materials, and devices prepared from same.

Abstract: Sensors including a functional component, methods for making such sensors and methods for using sensors including a functional component for the detection of free radical forming compounds including peroxides and devices incorporating such sensors are provided herein.