Abstract: Disclosed is a separation media, comprising an upstream layer, comprising fibers, wherein the upstream layer has a mean flow pore size of 8 microns or less; and a downstream layer, comprising fibers. The separation media is designed to separate red blood cells from liquid specimens such as blood and allow a filtrate, such as blood plasma, to flow from said downstream layer. Also provided is a diagnostic test device incorporating the separation media. Further disclosed is a method for separating red blood cells from a liquid specimen.

Abstract: Disclosed is a media (such as a filter media) having one or more carbon nanotube (CNT)-containing layer. Each CNT-containing layer contains high temperature refractory fibers (e.g., staple quartz fibers and/or ceramic refractory fibers) that have melting temperatures greater than about 600° C. and in situ grown CNTs. Substantially all of the in situ grown CNTs have one end thereof associated with the fibers. This results in substantially all of the in situ grown CNTs extending away from substantially all of the fibers. Moreover, substantially all of the in situ grown CNTs are dispersed throughout the fibers. In one embodiment the media also includes one or more supporting layer. Each supporting layer contains high temperature refractory fibers that have melting temperatures greater than about 600° C., optionally bulk refractory fibers, optionally E-glass fibers, and optionally microglass fibers.

Abstract: There is provided a substrate (1) capable of carrying uniformly dispersed, finely divided, particulate, solid particles, e.g., catalyst particles (10) and sustaining temperatures in excess of 1200 degrees F. The substrate comprises a top layer (2) for containing the particles (10) and composed of quartz fibers (4) with an average diameter of between about 0.1 and 4 microns and about 0 to 13% of microglass fibers having a softening point of about 1000 degrees F. A support layer (3) is composed of the fibers of the top layer and, in addition, bulk refractory, e.g., ceramic, fibers (6) having and average diameter of about 1 to 4 microns and 0 to 50% of chopped e-glass fiber (7). A method for producing the substrate is provided that includes wet laying the top and bottom layers in spaced apart times so that the juncture (8) between the two layers has intermingled fibers whereby the consolidated layers are not easily separated.

Abstract: Disclosed is a separation media, comprising an upstream layer, comprising fibers, wherein the upstream layer has a mean flow pore size of 8 microns or less; and a downstream layer, comprising fibers. The separation media is designed to separate red blood cells from liquid specimens such as blood and allow a filtrate, such as blood plasma, to flow from said downstream layer. Also provided is a diagnostic test device incorporating the separation media. Further disclosed is a method for separating red blood cells from a liquid specimen.

Abstract: There is provided a substrate (1) capable of carrying uniformly dispersed, finely divided, particulate, solid particles, e. g., catalyst particles (10) and sustaining temperatures in excess of 1200 degrees F. The substrate comprises a top layer (2) for containing the particles (10) and composed of quartz fibers (4) with an average diameter of between about 0.1 and 4 microns and about 0 to 13% of microglass fibers having a softening point of about 1000 degrees F. A support layer (3) is composed of the fibers of the top layer and, in addition, bulk refractory, e. g., ceramic, fibers (6) having and average diameter of about 1 to 4 microns and 0 to 50% of chopped e-glass fiber (7). A method for producing the substrate is provided that includes wet laying the top and bottom layers in spaced apart times so that the juncture (8) between the two layers has intermingled fibers whereby the consolidated layers are not easily separated.