相关实验视频

Updated: Jun 28, 2025

Design and Development of Aptamer–Gold Nanoparticle Based Colorimetric Assays for In-the-field Applications

Design and Development of Aptamer–Gold Nanoparticle Based Colorimetric Assays for In-the-field Applications

Published on: June 23, 2016

一个二维基基共价有机框架,用于从复杂的水基矩阵中选择性检测和有效提取黄金

Douchao Mei¹, Bing Yan¹

¹Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, China.

Angewandte Chemie (International ed. in English)

|April 12, 2024

概括

一个新的2D基共价有机框架 (TpDa-COF) 可实现双检测和有效捕获黄金离子. 这种材料具有很高的选择性和吸附能力,促进了环境和经济应用.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
环境化学环境化学

背景情况:

出于环境和经济原因,开发用于选择性黄金检测和捕获的材料至关重要.
现有的材料往往缺乏双重功能,限制了它们作为探头或吸附剂的实际用途.
共价有机框架 (COF) 为先进的材料应用提供可调节的特性.

研究的目的:

为了合成和描述一种新的基于二维亚克里丁的共价有机框架 (TpDa-COF).
评估TpDa-COF对贵金属黄金 (Au) 的选择性检测和高效吸附的能力.
探索合成的COF的双重感应 (光和色度) 和吸附性能.

主要方法:

通过使用 imine 键链接,合成一个二维 (2D) 基于阿克里丁的共价有机框架 (TpDa-COF).
在特定度范围内使用光和色度测量方法评估Au3+的双重传感能力.
在最佳的pH条件下确定黄金离子的吸附能力和选择性.

主要成果:

TpDa-COF显示了Au3+的双光和色度检测,检测极限低 (0.036 ppm).
该材料对Au3+具有很好的选择性,Fe3+,Fe2+和Cu2+的干扰是可以忽略不计的.
黄金的超高吸附能力为982.5mg·g−1,这是由于协同协调和减少而实现的.

结论:

合成的TpDa-COF是一种高效的材料,既可用于选择性检测,也能有效地捕获黄金.
在COF框架内的胺位,有助于它对黄金的强烈亲和力和性能.
这项工作提供了一个新的策略,用于设计用于黄金整治和传感应用的化氧化.

关键词:

亚 (III) 吸附方式在Au (III) 检测检测.有活性的气站点.复杂的水矩阵是复杂的水矩阵.协价有机框架协价有机框架

更多相关视频

Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology

Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology

Published on: March 12, 2015

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Published on: December 6, 2015

相关概念视频

Immunogold Electron Microscopy

Immunogold Electron Microscopy

Immunoelectron microscopy utilizes immunogold labeling of endogenous proteins with specific antibodies to detect and localize these proteins in cells and tissues. The procedure provides insights into the distribution and quantification of protein under different stimulation conditions offering clues about their functions. Conjugating highly electron-dense gold particles with primary or secondary antibodies allow antigen detection on and within cells, with high resolution and specificity.