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Anion doping is an efficient method for modifying the electrical property of the p‐type semiconductor CuI. However, adjustment of the hole density is still challenging. Using sputtering and spin coating techniques, well‐controlled S‐doping of CuI thin films has been realized. The spin‐coated samples present a single (111) out‐of‐plane orientation and very high crystallinity, which is comparable with previously reported epitaxial CuI thin films. The sputtered thin films have advantages in surface morphology and conductivity. Substituting S for I can achieve efficient acceptor doping of CuI for both the physical and chemical growth methods. The highest conductivity of CuI appears at 2.0 at% of S doping, and the doping efficiency is influenced by the self‐compensation effect.

To explore the effect of leukocyte-platelet-rich fibrin (L-PRF) on promoting wound healing in diabetic foot ulcers. A total of 42 patients with diabetic foot ulcers at our hospital from January 2017 to July 2020 were retrospectively analyzed. A control group and a PRF group were established. The two groups of patients underwent debridement. In the platelet-rich fibrin (PRF) group, autologous L-PRF was used to cover ulcer wounds. One time each week, Vaseline gauze was used to cover the ulcer wounds. In contrast, the control group was treated with the external application of mupirocin ointment and recombinant human epidermal growth factor gel (yeast). Two times each week, the sterile Vaseline gauze was covered with a bandage. Both groups were treated for 5 weeks. The wound recovery of the two groups was observed. During the early stage of treatment (first and second weeks) for diabetic foot ulcers, the wound healing rate was significantly better with L-PRF treatment than traditional treatment. For later-stage treatment (third to fifth weeks), the overall cure rate was higher with L-PRF than the traditional treatment method. L-PRF can effectively promote wound healing in diabetic foot ulcers.

Objective: To investigate the effects of Segond fracture and associated injuries on knee stability. Methods: Retrospective analysis of 35 cases of Segond fracture, allpatients had anterior cruciate ligament rupture (100%), including 6 patients (17.1%) with avulsion fracture of tibia intercondylar eminence. There were 8 cases (22.9%) with medial collateral ligament injury. There were 5 cases (14.3%) with lateral collateral ligament injury. There were 20 cases (57.1%) with combined meniscus injury, 5cases (14.3%) with both medial and lateral meniscus injury, 3 cases (8.6%) with only medial meniscus injury, and 12cases (34.3%) with only lateral meniscus injury. All 35 patients underwent surgical treatment, including 35 cases of ligament reconstruction, 6 cases of intercondylar eminence fracture fixation, and 20 cases of meniscus repair. To compare the function and stability of knee joint before operation and 2 years after operation. Results: The Lysholm score for knee joint function on admission was (43.9±5.3) and the IKDC score was (36.1±3.9). All 35 patients were followed up for 24-36 months. X-rays showed that the Segond fractures healed 3 months after surgery. The anterior drawer test, Lachman test, McMurray test, and Lateral stress test were all negative at the last follow-up. 5 patients with lateral meniscus injury had 1 grade pivot shift at the last follow-up. The Lysholm score was (91.7±3.6), and the difference was statistically significant as compared with that before surgery (P<0.05). The IKDC score was (89.0±1.7), and the difference was statistically significant as compared with that before surgery (P<0.05). Conclusion: The indicative effect of Segond fracture on timely detection of combined injuries in the knee joint cannot be ignored. In addition to repairing the intra-articular injuries, more attention should be paid to the anterolateral structural stability of the knee joint. For Segond fracture patients with higher pivot shift grade may have residual axial migration after surgery, so ALL reconstruction surgery may be considered.