Articles including a porous substrate having a conformal layer thereon

Abstract

An article of manufacture includes a body having an inlet and an outlet, and at least a portion of at least one porous non-ceramic substrate positioned such that the porous polymeric substrate separates the inlet from the outlet. The porous non-ceramic substrate has a conformal coating on at least a portion of its interior surfaces.

1 . An article of manufacture comprising:
 a body having an inlet and an outlet, and   at least a portion of at least one porous non-ceramic substrate positioned such that the porous non-ceramic substrate separates the inlet from the outlet,   wherein the porous non-ceramic substrate has a conformal coating on at least a portion of its interior surfaces,   wherein the porous non-ceramic substrate is a porous polymeric substrate.   
     
     
         2 . The article according to  claim 1  wherein the conformal coating has at least 8 molecular layers. 
     
     
         3 . The article according to  claim 1  wherein the conformal coating has at least 20 molecular layers. 
     
     
         4 . The article according to  claim 1  wherein the conformal coating has a surface energy of greater than 72 dyne/cm. 
     
     
         5 . The article according to  claim 2  wherein the exterior surface of the porous non-ceramic substrate nearest the outlet has a surface energy less than 72 dyne/cm. 
     
     
         6 . (canceled) 
     
     
         7 . The article according to  claim 1  wherein the porous polymeric substrate is a TIPS substrate. 
     
     
         8 . The article according to  claim 1  wherein the porous polymeric substrate is a non-woven substrate. 
     
     
         9 . The article according to  claim 1  further comprising at least a second porous non-ceramic substrate positioned such that the second porous non-ceramic substrate also separates the inlet from the outlet. 
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . The article according to  claim 1  wherein the conformal coating comprises a metal oxide, metal nitride, metal sulfide, or a combination thereof. 
     
     
         13 . The article according to  claim 12  wherein the metal is selected from the group consisting of silicon, titanium, aluminum, zirconium, and yttrium. 
     
     
         14 . (canceled) 
     
     
         15 . (canceled) 
     
     
         16 . (canceled) 
     
     
         17 . The article according to  claim 12  further comprising a fluid contact layer formed of at least one ligand chemically grafted to the conformal coating. 
     
     
         18 . (canceled) 
     
     
         19 . An article of manufacture comprising:
 a porous non-ceramic substrate having a conformal coating on all its interior surfaces through its entire thickness,   wherein the porous non-ceramic substrate is a porous polymeric substrate.   
     
     
         20 . The article according to  claim 19  wherein the conformal coating extends to the external surfaces. 
     
     
         21 . The article according to  claim 1  wherein the conformal coating has at least 8 molecular layers. 
     
     
         22 . (canceled) 
     
     
         23 . The article according to  claim 1  wherein the conformal coating has a surface energy of greater than 72 dyne/cm. 
     
     
         24 . (canceled) 
     
     
         25 . The article according to  claim 19  wherein the porous polymeric substrate is a TIPS substrate. 
     
     
         26 . The article according to  claim 19  wherein the porous polymeric substrate is a non-woven substrate. 
     
     
         27 . The article according to  claim 19  wherein the conformal coating comprises a metal oxide, metal nitride, metal sulfide, or a combination thereof. 
     
     
         28 . The article according to  claim 27  wherein the metal is selected from the group consisting of silicon, titanium, aluminum, zirconium, and yttrium. 
     
     
         29 . (canceled) 
     
     
         30 . (canceled) 
     
     
         31 . (canceled) 
     
     
         32 . The article according to  claim 19  further comprising a fluid contact layer formed of at least one ligand chemically grafted to the conformal coating. 
     
     
         33 . (canceled) 
     
     
         34 . The article according to  claim 19  wherein the conformal coating reduces the porosity of the porous non-ceramic substrate by a predetermined amount. 
     
     
         35 . (canceled) 
     
     
         36 . (canceled) 
     
     
         37 . (canceled) 
     
     
         38 . (canceled)