Fig. 5: Biocompatibility assessment of the microneedles. | Microsystems & Nanoengineering

Fig. 5: Biocompatibility assessment of the microneedles.

From: A self-powered hydration-monitoring and drug-delivery skin patch for closed-loop treatment of atopic dermatitis

Fig. 5: Biocompatibility assessment of the microneedles.

a Microscopy images of NIH/3T3 cells co-cultured with the microneedles for 24 h. b Quantitative evaluation of cell viability after 24-h co-culture. c Microscopy images of NIH/3T3 cells co-cultured with the microneedles for 72 h. d Quantitative evaluation of cell viability after 72-h co-culture. Data are presented with error bars as mean ± standard deviation (SD). n = 3 biological replicates. One-way ANOVA, ns no significant difference

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