Publications by authors named "Mengxi Han"
Background: This study aimed to determine the prognostic survival impact of preoperative carbohydrate CA19-9 levels in resectable cholangiocarcinoma.
Methods: PubMed, Web of Science, Cochrane, and Embase databases were searched for articles published through April 28, 2023. The relationship between preoperative serum carbohydrate antigen 19-9 and the prognosis of patients with resectable cholangiocarcinoma was analyzed.
Article Synopsis
- Zeolite-encapsulated metal nanoparticles have shown potential in catalysis through a process called hydrogen spillover, but boosting the catalytic properties of zeolite supports is still a challenge.
- A new approach was developed to improve reactant adsorption on zeolite surfaces using ion exchange, resulting in various platinum nanocluster catalysts (Pt@NaA, Pt@HA, Pt@KA, and Pt@CaA).
- The Pt@CaA catalyst demonstrated the highest activity for converting acetophenone to 1-phenylethanol with near 100% selectivity, attributed to enhanced carbonyl group adsorption due to calcium ion exchange, as supported by DFT calculations and temperature-programmed desorption experiments.
Article Synopsis
- * Three types of zeolites (ZSM-22, ZSM-12, and beta zeolite) were used to create indole@zeolite complexes, resulting in slower and more controlled release rates compared to traditional indole/zeolite methods.
- * Molecular dynamics simulations revealed that the different zeolite topologies affect the diffusion and release rate of indole, leading to improved antibacterial activity due to better controlled release.
It is challenging to establish single metal atoms with a uniform coordination environment at targeted sites of a zeolite. In this study, single platinum atoms were selectively encaged in the six-membered rings of sodalite (SOD) cages within Y zeolite using a template-guiding strategy. During the in situ synthesis process, template molecules were designed to occupy supercages and thereby force coordinated platinum species into SOD cages.
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