Journal: Cell Reports Medicine
Article Title: Restoring immune homeostasis in atherosclerotic plaques via inorganic violet phosphorus nano-immunotherapy
doi: 10.1016/j.xcrm.2025.102528
Figure Lengend Snippet: Preparation, characterization, ROS scavenging, and biocompatibility of VPNS@P (A) Schematic of exfoliation and PEGylation of violet phosphorus (VP) to prepare VPNS@P from bulk VP. (B) Transmission electron microscopy (TEM) image of VPNS@P. Scale bar, 100 nm. (C) Hydrodynamic size distribution of VPNS@P measured by dynamic light scattering (DLS). (D and E) Atomic force microscopy (AFM) image (D) and thickness profile (E) of VPNS@P. Scale bar, 100 nm. (F) Raman scattering spectra of VPNS@P. (G) Time-course DLS measurements of VPNS@P incubated in PBS or DMEM supplemented with 10% fetal bovine serum (FBS) over 7 days ( n = 3 independent samples). (H–J) Scavenging capability of VPNS@P ( n = 5 independent samples) toward H 2 O 2 (H), ·OH (I), and O 2 ·− (J). (K–M) Biocompatibility of VPNS@P in vitro . Cell viabilities of RAW264.7 (K), mouse aortic vascular smooth muscle cells (MOVASs) (L), and human umbilical vein endothelial cells (HUVECs) (M) were examined with a CCK-8 assay ( n = 3 biologically independent samples). Data were analyzed using one-way ANOVA with a Dunnett’s T3 post hoc test and are shown as the mean ± SD. ∗ p < 0.05, ∗∗ p < 0.01, ∗∗∗ p < 0.001, and ∗∗∗∗ p < 0.0001. ns, not significant.
Article Snippet: Human: HUVEC umbilical vein endothelial cells , ATCC , CRL-1730; RRID: CVCL_2959.
Techniques: Transmission Assay, Electron Microscopy, Microscopy, Incubation, In Vitro, CCK-8 Assay