β-Ketoenamine Porous Organic Polymers for High-Efficiency Carbon Dioxide Adsorption and Separation.

To mitigate the greenhouse effect, a number of porous organic polymers (POPs) has been developed for carbon capture. Considering the permanent quadrupole of symmetrical CO molecules, the integration of electron-rich groups into POPs is a feasible way to enhance the dipole-quadrupole interactions between host and guest. To comprehensively explore the effect of pore environment, including specific surface area, pore size, and number of heteroatoms, on carbon dioxide adsorption capacity, we synthesized a series of microporous POPs with different content of β-ketoenamine structures via Schiff-base condensation reactions.

Highly luminescent olefin-linked covalent organic frameworks.

A new olefin-linked covalent organic framework (COF) was developed using 1,3,5-triformylbenzene (TFB) and tetraethyl -xylylenediphosphonate (TEXDP) as building blocks through a Horner-Wadsworth-Emmons reaction. By combination of the aromatic columnar ordering and high conjugation, the resulting TFB-TEXDP-COF exhibits a fluorescence quantum yield of up to 41%, which constitutes the new record value among COFs.

Effect of hsryfm 1301 Fermented Milk on Lipid Metabolism Disorders in High-Fat-Diet Rats.

To further explore and improve the mechanism of probiotics to alleviate the disorder of lipid metabolism, transcriptomic and metabolomic with bioinformatic analysis were combined. In the present study, we successfully established a rat model of lipid metabolism disorder using a high-fat diet. Intervention with Lactobacillus rhamnosus hsryfm 1301 fermented milk resulted in a significant reduction in body weight, serum free fatty acid and blood lipid levels (p < 0.

Enhancement of the Antibacterial Properties of Kefir by Adding Lactobacillus fermentum grx08.

Abstract: Kefir is an acidic-alcoholic fermented milk that can provide probiotic benefits, such as intestinal microecological balance regulation, antibacterial activity, and anti-inflammatory activity. In this study, Lactobacillus fermentum grx08 isolated from longevous people was used to further improve the health properties of kefir. L.