Journal: Bioactive Materials

Article Title: Synergistic mitochondrial homeostasis regulation and cholinergic circuits reconstruction via a one-step synthesized multifunctional hydrogel facilitates spinal cord injury repair

doi: 10.1016/j.bioactmat.2025.12.009

Figure Lengend Snippet: ROS scavenging capabilities of the PLCS hydrogel. (A) Visual color changes of the ABTS + • solution after incubation with PLC and PLCS hydrogels over time. (B) and (C) UV–vis absorption spectra of ABTS + • solution following incubation with PLC and PLCS hydrogels at different time points. (D) Quantitative comparison of ABTS + • scavenging activity between PLC and PLCS hydrogels over time (n = 3). (E) and (F) UV–vis absorption spectra of •OH scavenging activity of PLC, PLCS hydrogels at different time points. (G) Statistical comparison of •OH scavenging efficiencies of PLC and PLCS hydrogels (n = 3). (H) O 2 • - scavenging ability of PLC and PLCS hydrogels over time (n = 3). (I) H 2 O 2 scavenging ability of PLC and PLCS hydrogels over time (n = 3). (J) Flow cytometric analysis of intracellular ROS levels using DCFH-DA staining in different treatment groups. (K) Quantification of DCFH-DA fluorescence intensity (n = 3). (L–N), Fluorescent microscopy images of PC12 cells stained with DCFH-DA, DHE, and DAPI after various treatments, along with corresponding fluorescence intensity quantification (n = 3). Statistically significant at ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, and ∗∗∗∗p < 0.0001.

Article Snippet: The specific procedures were as follows: First, 7 mM ABTS solution was thoroughly mixed with 2.45 mM potassium persulfate (K 2 S 2 O 8 ) (Macklin, China) solution and reacted overnight at 4 °C in the dark to generate a stable ABTS• + radical stock solution.

Techniques: Incubation, Comparison, Activity Assay, Staining, Fluorescence, Microscopy