There are many factors involved in wound healing, and the healing process is not static. The therapeutic effect of modern wound dressings in the clinical management of wounds is documented. However, there are few reports regarding the reasonable selection of dressings for certain types of wounds in the clinic. In this article, we retrospect the history of wound dressing development and the classification of modern wound dressings. In addition, the pros and cons of mainstream modern wound dressings for the healing of different wounds, such as diabetic foot ulcers, pressure ulcers, burns and scalds, and chronic leg ulcers, as well as the physiological mechanisms involved in wound healing are summarized. This article provides a clinical guideline for selecting suitable wound dressings according to the types of wounds.

Ti self-doped blue TiO(B) single-crystalline nanorods (b-TR) are fabricated via a simple sol-gelation method, cooperated with hydro-thermal treatment and subsequent in situ treatment method, and afterward annealed at 350 °C in Ar. The structures are characterized by X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (UV-vis), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The prepared b-TR with narrow band gap possesses single-crystalline TiO(B) phase, Ti self-doping, and one-dimensional (1D) rodlike nanostructure. In addition, the improved photocatalytic performance is studied by decomposition of Rhodamine B (RhB) and hydrogen evolution. The degradation rate of RhB by Ti self-doped blue TiO(B) single-crystalline nanorods is ∼6.9- and 2.1-times higher compared with the rates of titanium dioxide nanoparticles and pristine TiO(B) nanorods under visible light illumination, respectively. The hydrogen evolution rate of b-TR is 26.6 times higher compared with that of titanium dioxide nanoparticles under AM 1.5 irradiation. The enhanced photocatalytic performances arise from the synergetic action of the special TiO(B) phase, Ti self-doping, and the 1D rod-shaped single-crystalline nanostructure, favoring the visible light utilization and the separation and transportation of photogenerated charge carriers.

Hydrogen peroxide (H2O2), as a type of reactive oxygen species (ROS), can be endogenously produced from the mitochondrial electron transport chain in aerobic respiration and plays important roles in several physiological processes. However, the design and synthesis of fluorescent probes, which can detect mitochondrial H2O2 in living cells, still remain rare. Herein, we report the preparation of a novel cationic probe 1 (Mito-H2O2), which targets the mitochondria in living cells and is sensitive to the presence of H2O2. The probe Mito-H2O2 displays desired properties such as high specificity, "Turn-On" fluorescence response with suitable sensitivity, appreciable water solubility, and rapid response time (within 5 min). The sensing mechanism was confirmed by high-resolution mass spectroscopy analysis, and the mechanism of "Turn-On" fluorescent response was also determined using a density functional theory (DFT) calculation method. Moreover, as a biocompatible molecule, the probe Mito-H2O2 has been successfully applied for the detection of the intrinsically generated intracellular H2O2 in living cells, and the fluorescence colocalization studies indicate that the probe localizes solely in the mitochondria of HeLa cells.

Herein, we demonstrate for the first time the fabrication of concave trisoctahedral Ag(3)PO(4) microcrystals enclosed by {221} and {332} facets based on the heteroepitaxial growth procedure, which exhibit much higher photocatalytic activities than cubic Ag(3)PO(4) and commercial N-doped TiO(2).