| http://www.w3.org/ns/prov#value | - In certain embodiments, the substrate is a porous substrate, for example, as in the case where the porous substrate has a median pore size of 1 micron or less and/or as in the case where the porous substrate has a median pore size of 500 nanometers or less, such as in cases where the porous substrate has a median pore size of from 5 nanometers to 500 nanometers, from 5 nanometers to 400 nanometers
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