Figure 3
Characterization of the nanofibrous substrate containing nanocarriers and the engineered heater. (a,b) Representative images of a nanofibrous substrate with a biodegradable Zn heater deposited by RF sputtering. (c) Characterization of the zinc microheater, the resulting temperature as a function of applied voltage. (d) Degradation of zinc patterns over 24 days in aqueous solutions containing NaOH (2.5 mM). (e) Micrograph showing the hydrolysis of zinc patterns over 24 days. (f) Degradation of magnesium patterns over 4 h in aqueous solutions containing 2.5 mM NaOH. (g) A representative SEM image of a nanofibrous substrate heated to 38 °C for 1 h confirming the stability of the membranes at that temperature. (h) A representative SEM image of nanofibrous substrate heated to 50 °C for 1 h, showing melted, decomposed and deformed state.
