Freestanding flexible molecularly imprinted nanocomposite membranes for selective separation applications: an imitated core–shell PEI@SiO2-based MIM design

2020 ◽  
Vol 44 (44) ◽  
pp. 19091-19102
Author(s):  
Faguang Ma ◽  
Yan Yan ◽  
Zhixin Yu ◽  
Yilin Wu ◽  
Xinlin Liu

The development of molecularly imprinted membranes (MIMs) has promoted applications of membrane-based separation technology, which has shown considerable advantages in water treatment, chemical separation and drug purification.

2017 ◽  
Vol 41 (24) ◽  
pp. 14966-14976 ◽  
Author(s):  
Juan Zhao ◽  
Yilin Wu ◽  
Shi Zhou ◽  
Li Yan ◽  
Hongjun Dong ◽  
...  

A novel high-efficiency molecularly imprinted nanocomposite membrane was designed for selective adsorption and separation of norfloxacin.


Author(s):  
Jia Gao ◽  
Li Chen ◽  
Yongsheng Yan ◽  
Jian Lu ◽  
Wendong Xing ◽  
...  

Dot-matrix-initiated molecularly-imprinted nanocomposite membranes with high selective separation ability and anti-oil fouling performance were first proposed and developed for the specific recognition and separation of paclitaxel.


NANO ◽  
2019 ◽  
Vol 14 (02) ◽  
pp. 1950025
Author(s):  
Chao Yu ◽  
Jian Lu ◽  
Qi Zhang ◽  
Hougang Fan ◽  
Minjia Meng ◽  
...  

High purity emodin is in great demand with the development of medical treatment. Molecularly imprinted membranes (MIMs) have gained wide attention for selective separation of emodin due to its preferable selectivity. In this work, we describe a simple two-step method for developing emodin-imprinted TiO2@CA (ETMIMs) and emodin-imprinted SiO2@CA (ESMIMs) based on organic–inorganic nanoparticle (SiO2/TiO2) modified cellulose acetate membranes at room temperature. SiO2/TiO2 is used to improve the structural stability and roughness of membranes, and dopamine is used as the functional monomer and crosslinker. Importantly, the as-prepared membranes not only exhibited enhanced rebinding capacity ([Formula: see text] and [Formula: see text]) but also possessed superior rebinding selectivity (2.76 and 2.99 for physcion and 2.42 and 3.30 for aloe emodin onto ETMIMs and ESMIMs) as well as permselectivity (7.59 and 6.69 for physcion and 5.94 and 5.78 for aloe emodin onto ETMIMs and ESMIMs). The regeneration ability of ETMIMs and ESMIMs still maintained 90.4% and 89.2% of the original rebinding capacity after 10 cycling steps, respectively. The ETMIMs and ESMIMs obtained in this work show potential applications for selective separation and purification of emodin from analogs.


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