Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is one of the oldest and largest independent, nonprofit, applied research and development (R&D) organizations in the United States.
XingGuo Cheng, Ph.D., a senior research scientist in SwRI’s Chemistry and Chemical Engineering Division
Southwest Research Institute
An aligned polymer article including substrates, wherein the substrates are not covalently bonded to the aligned collagen and a method of forming such articles wherein substrates are mixed with a polymer in solution to form a polymer-substrate mixture. The mixture is placed in an electrochemical cell and a voltage is applied to the cell generating a pH gradient, wherein the polymer aligns in the cell and migrates to the isoelectric plane of the polymer solution.