A rapid and sensitive paper-based sensor for sulfide ion detection in Chinese liquors.

The accurate monitoring of sulfide ion concentrations is vital for ensuring food safety, but current detection methods are often cumbersome and confined to laboratories. This study introduces an innovative paper-based colorimetric sensor that leverages the peroxidase-like activity of cobalt tetrasulfonate phthalocyanine (CoTsPc) for rapid, sensitive, and selective sulfide ion quantification. The underlying mechanism relies on the interaction between cobalt and sulfide ions, modulating the catalytic efficiency of CoTsPc and triggering a visible color change when 3,3',5,5'-tetramethylbenzidine (TMB) and hydrogen peroxide are present.

Proteome-wide mendelian randomization investigates potential associations in heart failure and its etiology: emphasis on PCSK9.

Background: Heart failure (HF) is a prevalent clinical syndrome with diverse etiologies. It is crucial to identify novel therapeutic targets based on underlying causes. Here, we aimed to use proteome-wide Mendelian randomization (MR) analyses to identify the associations between genetically predicted elevated levels of circulating proteins and distinct HF outcomes, along with specific HF etiologies.

Influencing factors of employee brand equity from the perspective of FinTech.

Recent years have seen a heated discussion on what influences employees' recognition of enterprise brand equity among the psychological community. Some empirical evidence suggests that the brand equity of consumers and brand equity of sales are two categories that should be studied. However, more recent discussions have focused more on the former.

Boosting the photocatalytic activity and stability of CuO for CO conversion by LaTiON.

CuO is one of the most promising photocatalysts for visible light driven CO conversion, but its practical application in artificial photosynthesis is challenged to severe photocorrosion. Herein, a CuO/LaTiON composite is successfully synthesized by loading CuO on LaTiON through an ascorbic acid reduction method, which significantly improves the stability and activity of CuO for visible light driven photocatalytic CO conversion, and shows higher photocatalytic performance than most CuO-based photocatalysts reported. The superior photocatalytic performance is attributed to the formation of type-II heterojunction between CuO and LaTiON, which facilitates the separation and transfer of photogenerated electrons and holes.

Preparative separation and identification of the flavonoid phlorhizin from the crude extract of Lithocarpus polystachyus Rehd.

The flavonoid phlorhizin is abundant in the leaves of Sweet Tea (ST, Lithocarpus Polystachyus Rehd). Phlorhizin was preparatively separated and purified from a crude ST extract containing 40% total flavonoids by static adsorption and dynamic desorption on ADS-7 macroporous resin and neutral alumina column chromatography. Only water and ethanol were used as solvents and eluants throughout the whole separation and purification process.