Research / 2021 / Article / Fig 4

Research Article

MXene-Integrated Microneedle Patches with Innate Molecule Encapsulation for Wound Healing

Figure 4

Angiogenic effect evaluation results. (a–c) Optical images showing the HUVECs cultured in different groups: (a) control group, (b) experimental group I, and (c) experimental group II. The red dotted areas represent formed tubular structures. Scale bars are 100 μm. (d) Statistic graph of the total tube length of three groups (). Error bars represent standard deviation. , NS: not significant.