Covalent organic framework membrane for size selective release of small molecules and peptide in vitro.

The ability to control small drug release is crucial in biomedicine, especially for inhibiting the side effects of drugs, but it is still challenging. Herein, to mimic the controlled release of drugs, the release of organic molecules, e.g.

Microporous membranes comprising conjugated polymers with rigid backbones enable ultrafast organic-solvent nanofiltration.

Conventional technology for the purification of organic solvents requires massive energy consumption, and to reduce such expending calls for efficient filtration membranes capable of high retention of large molecular solutes and high permeance for solvents. Herein, we report a surface-initiated polymerization strategy through C-C coupling reactions for preparing conjugated microporous polymer (CMP) membranes. The backbone of the membranes consists of all-rigid conjugated systems and shows high resistance to organic solvents.

MoS /Celgard Separator as Efficient Polysulfide Barrier for Long-Life Lithium-Sulfur Batteries.

A high lithium conductive MoS /Celgard composite separator is reported as efficient polysulfides barrier in Li-S batteries. Significantly, thanks to the high density of lithium ions on MoS surface, this composite separator shows high lithium conductivity, fast lithium diffusion, and facile lithium transference. When used in Li-S batteries, the separator is proven to be highly efficient for depressing polysulfides shuttle, leading to high and long cycle stability.