Fig. 4

The embedded micro-network structures within the network pores of the hydrogel (a–c) and the incompletely formed hydrogel (d–f), with magnifications of 50,000×, 100,000× and 200,000×.

The embedded micro-network structures within the network pores of the hydrogel (a–c) and the incompletely formed hydrogel (d–f), with magnifications of 50,000×, 100,000× and 200,000×.