Lead-Free All-Inorganic Cesium Tin Iodide Perovskite for Filamentary and Interface-Type Resistive Switching toward Environment-Friendly and Temperature-Tolerant Nonvolatile Memories.

Recently, organometallic and all-inorganic halide perovskites (HPs) have become promising materials for resistive switching (RS) nonvolatile memory devices with low power consumption because they show current-voltage hysteresis caused by fast ion migration. However, the toxicity and environmental pollution potential of lead, a common constituent of HPs, has limited the commercial applications of HP-based devices. Here, RS memory devices based on lead-free all-inorganic cesium tin iodide (CsSnI) perovskites with temperature tolerance are successfully fabricated.

Anti-osteoarthritic effects of ChondroT in a rat model of collagenase-induced osteoarthritis.

Background: Previously, we reported that ChondorT showed significant anti-arthritis and anti-inflammatory effects. ChondroT, a new herbal medication, consists of the water extracts of Osterici Radix, Lonicerae Folium, Angelicae Gigantis Radix, Clematidis Radix, and Phellodendri Cortex (6:4:4:4:3). The objective of this study was to investigate the effects of ChondroT in collagenase-induced osteoarthritis rat model.

[State of natural killer cells after surgical treatment of oncologic patients].

In 53 patients with gastric and intestinal cancer, the content and functional activity of the natural killer cells was studied. The suppression of these indices at the first days after the operation, and restoration of their preoperative levels within 2-2.5 weeks was noted.