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Flow of 5 wt% PCL solution under an electric field showing, with flow rate set at 10 µl min−1, (a) no flow, (b) dripping mode, (c) microdripping mode, (d) rapid dripping mode, (e) unstable cone-jet mode, (f) stable cone-jet mode, (g) multi-jet mode, and (h) irregular instabilies mode. Scale bars, 600 µm.
