COMPOSITE MATERIAL INCLUDING A HIERARCHICAL AND NANOPOROUS METAL IN POROUS POLYMER SUBSTRATE

A composite material is disclosed including a porous polymer substrate and a nanoporous metal present within the microporous polymer substrate. The nanoporous metal may have a hierarchical structure. The nanoporous metal may have a unimodal and right-skewed number-based nanopore size distribution. The porous polymer substrate may support tissue integration and/or tissue ingrowth in certain applications. The composite material may be used in electrochemical analyte biosensors and other applications.