A partially degradable polymeric fiber includes a thermally degradable polymeric core and a coating surrounding at least a portion of the core. The thermally degradable polymeric core includes a polymeric matrix including a poly(hydroxyalkanoate), and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the core polymeric matrix. The concentration of the metal in the polymeric matrix is at least 0.1 wt '. The partially degradable polymeric fiber may be used to form a microvascular system containing one or more microfluidic channels.
Original languageEnglish (US)
U.S. patent number9988746
StatePublished - Jun 5 2018


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