Figure 6.

Physical and chemical properties of DBM-loaded hydrogels. (A) Self-healing processes of DBM-loaded supramolecular hydrogels: (1) two disk-shaped DBM-loaded hydrogels stained with rhodamine B and methylene blue were cut into equal two pieces; (2) one piece of pink hydrogel and one piece of blue hydrogel were joined together to form two new hydrogels; (3) These two new hydrogels were immersed in deionized water for 10 min; (4) the hydrogels were transferred from deionized water. (B) Self-healing of two DBM-loaded hydrogels after attachment directly: (1) pink hydrogel and blue hydrogel were attached directly; (2) the new hydrogel was immersed into deionized water for 10 min; (3) the hydrogel was transferred from deionized water and maintained its shape. (C) Images of DBM-loaded hydrogels injected from a syringe without needle into water. (D) “DBM” gel could be formed after injection from a syringe without needle. (E) Hydrogels with different shapes could be obtained after injection from a syringe without needle. (F) Images of hydrogels and DBM-loaded hydrogels after staining with Picrosirius Red.