Dynamic supramolecular snub cubes.

Mimicking the superstructures and properties of spherical biological encapsulants such as viral capsids and ferritin offers viable pathways to understand their chiral assemblies and functional roles in living systems. However, stereospecific assembly of artificial polyhedra with mechanical properties and guest-binding attributes akin to biological encapsulants remains a formidable challenge. Here we report the stereospecific assembly of dynamic supramolecular snub cubes from 12 helical macrocycles, which are held together by 144 weak C-H hydrogen bonds.

How thawing and salting affects the post-cooked quality of frozen beef: New insights into the mechanism of fiber morphology evolution and water migration.

To get insight into the thawing and salting in recovery and protection mechanisms on quality in frozen meat after subsequent cooking. The myofiber morphological-water evolution and quality changes in beef during freezing-thawing-cooking and freezing-cooking treatments were investigated. The cooking losses of fresh-cooked, frozen-cooked, and frozen-thawed-cooked samples were 27.

A modified suture technique using polydioxanone (PDS II) for capsule closure in total knee arthroplasty: a prospective randomized study compared with traditional suture technique.

Purpose: To describe and evaluate the modified suture technique using PDS II for capsule closure in Total knee arthroplasty.

Methods: One hundred-five patients with end-stage osteoarthritis of the knee received Total knee arthroplasty (TKA) in our department. The arthrotomy wounds were closed randomly utilizing either modified suture (the MS group, 53 patients) or traditional suture (the TS group, 52 patients) techniques.

CD63-high macrophage-derived exosomal miR-6876-5p promotes hepatocellular carcinoma stemness via PTEN/Akt-mediated EMT pathway.

Objective: Accumulating evidence suggests that microRNAs derived from macrophage exosomes can regulate the stemness and progression of cancer. However, the interaction mechanisms between HCC cells and tumor-associated macrophages remain unclear.

Methods: Exosomes were extracted from control or CD63 overexpression macrophages and co-cultured with HCC cells.

Polarity Sensor Based on Multivariate Lanthanide Metal-Organic Framework for Constructing Biosensing Platform.

It is significant but challenging to develop polarity sensors that can measure multiscenario polarity in a modular, customized, sensitive, and accurate manner. In this work, we proposed a polarity sensor based on multivariate lanthanide metal-organic framework (Ln-MOF) nanoclusters through the modular programming design of ligands. This multivariate Ln-MOF combines the advantages of modularity, ease of design, high flexibility and low cost, and can be precisely customized for different polarity systems.