“…Utilization of external stimuli together with stimuliresponsive scaffolds could solve this problem because many external stimuli, such as magnetic, 4 mechanical, 5 temperature, 6,7 and electrical stimulation, [7][8][9] are able to improve the bone tissue regeneration rate. Among them, electrical stimulation is an attractive option because it has been demonstrated that sending signals across cell membranes with À10 to À90 mV would encourage cells to travel to the site of injury, 10 and also boost cardiac, 11 nerve, 12,13 and bone tissue regeneration.…”