Journal: Drug Delivery
Article Title: Biodegradable silica nanoparticles for efficient linear DNA gene delivery
doi: 10.1080/10717544.2024.2385376
Figure Lengend Snippet: p-DNA@SiO 2 particles. (a) TEM images of p-DNA#4 particles with 4.5 µg of plasmid H2B:YFP DNA. (b) Particle diameter (mean ± SD) measured by TEM within a scatter dot plot comparing p-DNA#1-6 ( n = 100). Values for p-DNA#5 and p-DNA#6 are not included due to the presence of aggregates (see Figures S8–S9 ). (*)(**) p-DNA#5-6 not included due to the presence of aggregates (see Figures S5–S6 ). (c) DLS characterization of p-DNA#1-6 bar chart of Z-size (mean ± SD, left Y axis, n = 3) and dot plot in red showing the polydispersity index (PDI) (mean ± SD, right Y axis, n = 3). (d) Flow cytometry quantification of the transfection efficiency (mean fluorescence intensity) of the p-DNA#4 DNA@SiO 2 particles and a representative confocal microscopy image of HEK 293 cells expressing the recombinant H2B:YFP protein 72 h after transfection. Data are shown as the mean ± SD of 3 experimental replicas ( n = 10,000 cells/replica, t- test, * p < 0.05, and *** p < 0.001).
Article Snippet: HEK 293 (Human Kidney Epithelial Cells, RRID:CVCL_0045) cells were acquired in Innoprot (Innovative Technologies in Biological Systems, Derio, Spain).
Techniques: Plasmid Preparation, Flow Cytometry, Transfection, Fluorescence, Confocal Microscopy, Expressing, Recombinant