Tailoring the d-band electronic structure of deficient LaMnCoO perovskite nanofibers for boosting oxygen electrocatalysis in Zn-Air batteries.

The development and design of efficient bifunctional electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are crucial for rechargeable Zinc-air batteries (ZABs). Optimizing the d-band structure of active metal center in perovskite oxides is an effective method to enhance ORR/OER activity by accelerating the rate-determining step. Herein, we report a deficient method to optimize the d-band structure of Co ions in LaMnCoO (LMCO-2) perovskite nanofibers, which regulates the mutual effect between B-site Co ions and reactive oxygen intermediates.

PD-1 monoclonal antibodies enhance the cryoablation-induced antitumor immune response: a breast cancer murine model research.

Background: It has been demonstrated that cryoablation (Cryo) causes specific T-cell immune responses in the body; however, it is not sufficient to prevent tumor recurrence and metastasis. In this report, we evaluated changes in the tumor immune microenvironment (TIME) in distant tumor tissues after Cryo and investigated the immunosuppressive mechanisms that limit the efficacy of Cryo.

Methods: Bilateral mammary tumor models were established in mice, and we first observed the dynamic changes in immune cells and cytokines at different time points after Cryo.

Totally implantable venous access devices: The supraclavicular percutaneous approach and early complications.

Background: The background of this study was to explore the success rate and early complications concerning the implantation of totally implantable venous access devices (TIVADs) by percutaneous venipuncture and management strategies for early complications.

Materials And Methods: This was a retrospective study of 1923 patients who received TIVAD implantation by percutaneous venipuncture (mostly via the supraclavicular route). The percutaneous access sites were internal jugular vein (810 patients; right/left: 158/652) or proximal right internal jugular vein, brachiocephalic vein, and proximal subclavian vein (1113 patients).

[Detecting minimal residual disease status in allogeneic hematopoietic stem cell transplantation of patients with high-risk acute leukemia].

Objective: To explore the relationship between minimal residual disease (MRD) and the outcome of patients with high-risk acute leukemia (AL) undergoing allogeneic hematopoietic stem cell transplantation (HSCT).

Methods: By 4/5-color multi-parameter flow cytometry (MFC, CD45/SSC gating) for detecting MRD at pre-(day-30) and post-transplant (day +30, +60, +100, 6 months, 9 months and 12 months), the investigators retrospectively analyzed the MRD levels and the prognosis of 90 high-risk patients. According to the MRD cutoff value of 0.

[Surgical treatment and pathological findings of hematological malignancies patients complicated with lung diseases.].

Objective: To determine the pulmonary pathological changes in hematological malignancy patients with pulmonary complications.

Methods: 17 hematological malignancy patients underwent surgical treatment were evaluated retrospectively. The pathological changes of all the surgical specimens were examined postoperatively by standard hematoxylin and eosin (HE) staining.