A Dual-Function AgNW@COF SERS Membrane for Organic Pollutant Removal and Simultaneous Concentration Determination.
Qian NiuWeitao LiRuiling YuanQianqian LiHaozhe TangZhenyuan YangYongqi YangXuezhi QiaoPublished in: Langmuir : the ACS journal of surfaces and colloids (2024)
Surface enhanced Raman spectroscopy (SERS) is a highly sensitive analytical detection method commonly employed in biochemical and environmental analysis. Nevertheless, the rapid movement of analytes and interfering components in flow systems can impact the real-time, online detection capability of Raman spectroscopy. To address this issue, we developed an innovative approach utilizing covalent organic framework (COF), a robust porous material with excellent water stability, to coat the surface of Ag nanowire (AgNW) for synthesizing AgNW@COF hybrid. The regular pores of the COF serve to effectively eliminate large interfering molecules while facilitating the efficient transport of specific analytes to SERS hot spots. Additionally, the fluid flow-induced scouring effect aids in excluding interfering molecules from the surface of AgNW. By incorporating AgNW@COF into a bifunctional filter membrane with simultaneous filtration and sensing capabilities, we had achieved efficient purification of organic pollutants as well as real-time identification of pollutant species and concentration.
Keyphrases
- raman spectroscopy
- loop mediated isothermal amplification
- label free
- highly efficient
- real time pcr
- social media
- quantum dots
- sensitive detection
- healthcare
- molecularly imprinted
- high glucose
- diabetic rats
- gold nanoparticles
- health information
- water soluble
- oxidative stress
- room temperature
- drug induced
- endothelial cells
- living cells
- high resolution
- ionic liquid
- data analysis