2025年1月15日 · High-sensitivity detection of E. coli (7 CFU/mL) is achieved using COF/AAO membrane. Nanofluidic membranes hold great prospects in sensitive and rapid detection of bioanalysts, while remaining lacking robust and general approaches for specificity.

2024年10月25日 · Covalent organic frameworks (COFs) have emerged as promising platforms for membrane separations, while remaining challenging for separating ions in a fast and selective way. Here, we propose...

使用目前的COF/AAO膜，可以成功地从高盐溶液中获取盐度梯度能量，在500倍盐度梯度下输出功率密度达到17.95W m-2。 该研究为阴离子选择性膜在智能离子传输和高效能量转换中的构建和应用提供了新的途径。 相关文章以“In Situ Growth of Imine-Bridged Anion-Selective COF/AAO Membrane for Ion Current Rectification and Nanofluidic Osmotic Energy Conversion”标题发表在Advanced Functional Materials。 论文链接： doi.org/10.1002/adfm.20. 图 1.

2024年11月10日 · In this work, a chiral covalent organic framework/anodic aluminum oxide (c-COF/AAO) membrane was prepared for electrochemical enantioselective recognition and sensing. Benefiting from the remarkable asymmetry, the as-prepared nanofluidic c-COF/AAO presents a distinct ion current rectification (ICR) characteristic, enabling sensitive bioanalysis.

2023年5月8日 · Herein, an anion-selective membrane is synthesized by in situ growth of imine-bridged covalent organic framework (COF) on ordered anodic aluminum oxide (AAO) at room temperature. The imine groups and residual amino groups of COF can combine with protons in neutral solution, enabling the COF positively charged and efficiently transport of anions.

5 天之前 · According to the pore limited diameter and the largest cavity diameter in the COF crystallographic database 3, most COF materials have a pore size of 1 ~ 3 nm (Fig. 1a), which means that the most ...

2023年3月31日 · The COF-AAO membrane has high monovalent cation permeation rates of 0.1–0.2 mol m −2 h −1 as well as low multivalent cation permeabilities, as shown in Fig. 4h, resulting in remarkable mono ...

2024年10月18日 · Here, we report the integration of aptamer (Apt) and an ordered 2D covalent organic framework (COF) to solid-state anodic aluminum oxide (AAO) nanochannels (Apt/COF/AAO) for selective and sensitive detection of trace AFB1.

共价有机框架 （COFs）是一种新型的多孔有机纳米材料，具有良好的拓扑结构、蜂巢式的晶格结构和可调的孔径，可以通过轻质元素（C、N、O、B等）的强共价键来构建。 对比传统的多孔纳米材料（MOFs 和 ZIFs），COFs具有完全有机无金属骨架、低质量密度、良好的拓扑结构、结构多样性等优异性能。 因此，COFs在气体吸附与分离、能量储存与转换和二氧化碳还原等方面具有巨大的应用潜力。 目前，不管是自下而上（表面上的原位生长等）还是自上而下（溶剂辅助剥 …

By sacrificing a porous anodic aluminum oxide (AAO) membrane as a template, hollow tubular TpBD (H-TpBD) covalent organic framework (COF) tubes were synthesized in situ and zeolitic imidazolate framework (ZIF-8) nanoparticles were creatively synthesized in situ in H-TpBD tubes at room temperature.