Microenvironment-responsive Bletilla polysaccharide hydrogel with photothermal antibacterial and macrophage polarization-regulating properties for diabetic wound healing.

The healing of diabetic wounds (DW) is challenging due to the complex microenvironment, manifesting severe bacterial infections, persistent inflammation, and excessive oxidative stress. Therefore, overcoming these impediments to restore the wound microenvironment to a normal state is critical points and challenges in the development of effective DW dressings. Herein, a B/TF hydrogel was developed in our study using Bletilla striata polysaccharide (BSP), borax, and the tannic acid/ferric iron (TA/Fe) complex.

The role of T cells and shared genes in psoriasis and inflammatory bowel disease based on single-cell RNA and comprehensive analysis.

Psoriasis and inflammatory bowel disease (IBD) have a similar etiology, including abnormal activation of T cells. Differentially expressed genes (DEGs) analysis was used to search for shared genes. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) analysis were then performed.

Chemical Composition, Security and Bioactivity of the Red Pigment from Penicillium purpurogenum Li-3.

The chemical composition, security and bioactivity of pigments from Penicillium purpurogenum Li-3 strain screened by our group were firstly studied in this work. DPPH and the filter disc diffusion method were used to determine the biological activities of the red pigments. The pigment was characterized by UV/VIS, FT-IR, NMR and UPLC-Q-TOF-MS.

Vitamin D status in Chinese pregnant women and their newborns in Beijing and their relationships to birth size.

Objective: To evaluate the prevalence of vitamin D deficiency in pregnant women and their newborns in Beijing, China and the influence of vitamin D deficiency on birth size.

Design: A cross-sectional study.

Setting: Data were collected from pregnant women who delivered during April to May 2010 at 306 Hospital of PLA in Beijing, China.

[Raman spectroscopic quantitative analysis of cluster structure of binary alkali silicate glasses].

A calibration method for Raman spectroscopic quantitative analysis of binary alkaline silicate glasses is proposed. By applying ab initio quantum chemistry simulation, Raman optical activities (ROA) of various cluster units consisting of silicon-oxygen tetrahedra (SiOT) with different number of non-bridging oxygen (NBO) can be obtained. Thus, experimental results could be calibrated in order to reflect and represent directly the true relative density of various silicon-oxygen tetrahedra existing inside the silicate glasses.

[Temperature dependent Raman spectra and micro-structure study of cuspidine in solid and liquid phases].

Cuspidine plays an important role in conventional metallurgical continuous casting mould flux. An UV laser source was used to record its ambient and high temperature Raman spectra (temperature range: 298-1 723 K) combined with a charge coupled device (CCD) detector. Both increasing and decreasing processes as well as characteristic spectra and shifts in wavenumber were observed.