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. Author manuscript; available in PMC: 2021 Oct 27.
Published in final edited form as: ACS Nano. 2020 Sep 25;14(10):12732–12748. doi: 10.1021/acsnano.0c03064

Figure 6: Specificity, uptake and cytotoxicity of keratinocyte-targeted lipid nanoparticles (TLNPκ).

Figure 6:

(A) Schematic diagram showing experimental design to test the specificity of TLNPκ in mixed culture. (B) Confocal microscopic images showing selective uptake of TLNPκ by human keratinocytes at 4h compared with non-TLNκ in mixed culture cells (HaCaT: HMEC: BJ-1=1:1:3). K, keratinocyte; F, fibroblasts; E, endothelial cells. Scale; 20 μm. (C) In vitro LDH assay of TLNPk. (n=10) (D) Live-cell confocal images showing rapid uptake of TLNPκ by mouse keratinocytes compared to non-TLNPk. Scale, 10 μm. Inline graphic Indicate movies in the supplement. Data in C were shown as mean ± SEM and were analyzed by one-way ANOVA with the post-hoc Sidak’s multiple comparison test.