scholarly journals Electrochemical Sensing of α-Fetoprotein Based on Molecularly Imprinted Polymerized Ionic Liquid Film on a Gold Nanoparticle Modified Electrode Surface

Sensors ◽  
2019 ◽  
Vol 19 (14) ◽  
pp. 3218 ◽  
Author(s):  
Yingying Wu ◽  
Yanying Wang ◽  
Xing Wang ◽  
Chen Wang ◽  
Chunya Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Film ◽  
Electrochemical Sensor ◽  
Gold Nanoparticle ◽  
Electrochemical Sensing ◽  
Functional Monomer ◽  
Molecularly Imprinted ◽  
Polymerized Ionic Liquid ◽  
Sensitive Determination ◽  
Optimized Conditions

A molecularly imprinted sensor was fabricated for alpha-fetoprotein (AFP) using an ionic liquid as a functional monomer. Ionic liquid possesses many excellent characteristics which can improve the sensing performances of the imprinted electrochemical sensor. To demonstrate this purpose, 1-[3-(N-cystamine)propyl]-3-vinylimidazolium tetrafluoroborate ionic liquid [(Cys)VIMBF4] was synthesized and used as a functional monomer to fabricate an AFP imprinted polymerized ionic liquid film on a gold nanoparticle modified glassy carbon electrode (GCE) surface at room temperature. After removing the AFP template, a molecularly imprinted electrochemical sensor was successfully prepared. The molecularly imprinted sensor exhibits excellent selectivity towards AFP, and can be used for sensitive determination of AFP. Under the optimized conditions, the imprinted sensor shows a good linear response to AFP in the concentration range of 0.03 ng mL−1~5 ng mL−1. The detection limit is estimated to be 2 pg mL−1.

An ultrasensitive molecularly imprinted electrochemical sensor based on graphene oxide/carboxylated multiwalled carbon nanotube/ionic liquid/gold nanoparticle composites for vanillin analysis

RSC Advances ◽  
2015 ◽  
Vol 5 (113) ◽  
pp. 92932-92939 ◽  
Author(s):  
Xiaojiao Wang ◽  
Chuannan Luo ◽  
Leilei Li ◽  
Huimin Duan
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Electrochemical Sensor ◽  
Gold Nanoparticle ◽  
Schematic Diagram ◽  
Multiwalled Carbon ◽  
Molecularly Imprinted ◽  
Liquid Gold ◽  
Nanoparticle Composites

Schematic diagram of GO/CCNTs/IL/AuNPs/MIPs composites applied to the electrode.

Electrochemical sensing of terabromobisphenol A at a polymerized ionic liquid film electrode and the enhanced effects of anions

Ionics ◽  
2018 ◽  
Vol 24 (9) ◽  
pp. 2843-2850 ◽  
Author(s):  
Xue Zhou ◽  
Xiaoxue Ye ◽  
Kangbing Wu ◽  
Chunya Li ◽  
Yanying Wang
Keyword(s):  
Ionic Liquid ◽  
Liquid Film ◽  
Electrochemical Sensing ◽  
Film Electrode ◽  
Polymerized Ionic Liquid

scholarly journals 4-Pentenoyl-isoleucyl-chitosan oligosaccharide and acrylamide functional monomer-dependent hybrid bilayer molecularly imprinted membrane for sensitive electrochemical sensing of bisphenol A

RSC Advances ◽  
2021 ◽  
Vol 11 (58) ◽  
pp. 36769-36776
Author(s):  
Qing Gao ◽  
Yang Zang ◽  
Ju Xie ◽  
Yongchuan Wu ◽  
Huaiguo Xue
Keyword(s):  
Bisphenol A ◽  
Electrochemical Sensor ◽  
Electrochemical Sensing ◽  
Chitosan Oligosaccharide ◽  
Functional Monomer ◽  
Molecularly Imprinted ◽  
Functional Monomers ◽  
Molecularly Imprinted Membrane ◽  
Imprinted Membrane

A hybrid bilayer molecularly imprinted membrane-dependent electrochemical sensor was developed for bisphenol A assay based on 4-pentenoyl-isoleucyl-chitosan oligosaccharide and acrylamide functional monomers.

scholarly journals Efficient Photocatalytic Degradation of Gaseous Benzene and Toluene over Novel Hybrid PIL@TiO2/m-GO Composites

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 126 ◽  
Author(s):  
Shayeste Shajari ◽  
Elaheh Kowsari ◽  
Naemeh Seifvand ◽  
Farshad Boorboor Ajdari ◽  
Amutha Chinnappan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Toluene Degradation ◽  
Pollutant Degradation ◽  
Polymerized Ionic Liquid ◽  
Photodegradation Rate ◽  
Microstructural Morphology ◽  
Degradation Activity ◽  
Poly Ionic Liquid ◽  
Optimized Conditions ◽  
Gaseous Benzene

In this work, the PIL (poly ionic liquid)@TiO2 composite was designed with two polymerized ionic liquid concentrations (low and high) and evaluated for pollutant degradation activity for benzene and toluene. The results showed that PIL (low)@TiO2 composite was more active than PIL (high)@TiO2 composites. The photodegradation rate of benzene and toluene pollutants by PIL (low)@TiO2 and PIL (high)@TiO2 composites was obtained as 86% and 74%, and 59% and 46%, respectively, under optimized conditions. The bandgap of TiO2 was markedly lowered (3.2 eV to 2.2 eV) due to the formation of PIL (low)@TiO2 composite. Besides, graphene oxide (GO) was used to grow the nano-photocatalysts’ specific surface area. The as-synthesized PIL (low)@TiO2@GO composite showed higher efficiency for benzene and toluene degradation which corresponds to 91% and 83%, respectively. The resultant novel hybrid photocatalyst (PIL@TiO2/m-GO) was prepared and appropriately characterized for their microstructural, morphology, and catalytic properties. Among the studied photocatalysts, the PIL (low)@TiO2@m-GO composite exhibits the highest activity in the degradation of benzene (97%) and toluene (97%). The ultimate bandgap of the composite reached 2.1 eV. Our results showed that the as-prepared composites hold an essential role for future considerations over organic pollutants.

Sign in / Sign up

Export Citation Format

Share Document