Development of Electrochemical Platform Based on Molecularly Imprinted Poly(methacrylic acid) Grafted on Iniferter‐modified Carbon Nanotubes for 17β‐estradiol Determination in Water Samples

2020 ◽  
Author(s):  
Gabriel Lopes Marques ◽  
Luana Rianne Rocha ◽  
Maiyara Carolyne Prete ◽  
Felipe Augusto Gorla ◽  
Dayana Moscardi dos Santos ◽  
...  
RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28751-28760 ◽  
Author(s):  
Ederson dos Santos Moretti ◽  
Juliana de Fátima Giarola ◽  
Michele Kuceki ◽  
Maiyara Carolyne Prete ◽  
Arnaldo César Pereira ◽  
...  

In the present study the synthesis of a nanocomposite based on multi-walled carbon nanotubes grafted by poly(methacrylic acid–hemin) is described.


2020 ◽  
Vol 3 (01) ◽  
pp. 17-26
Author(s):  
Shahnaz Teimoori ◽  
Amir Hessam Hassani *© ◽  
Mostafaa Panaahie

In this study, the phenyl sulfonic acid (PhSA) modified carbon nanotubes (CNTs) were used for benzene removal from waters by  (D- μSPE). Due to adsorption mechanism, π–π interactions was provided between the aromatic ring of benzene with the surface (SO3H) and phenyl ring (-C6H5) of CNTs, respectively. Therefore, 20-100 mg of sorbent, concentration of benzene (0.1–10 mg L-1), pH (1-12) and contact time (5–120 min) were investigated and optimized for benzene removal from water samples in static system. The concentration of benzene in water was determined by (SHS-GC-MS). The results showed, the Langmuir-Freundlich (LF) isotherm provided the best fit for benzene sorption. By using the Langmuir model, the maximum adsorption capacity of 117.34 and 22.86 mg/g was achieved for benzene removal from waters with CNTs@PhSA and CNTs, respectively. Under optimal conditions, adsorption efficiency of CNTs@PhSA and CNTs was obtained 97.7% and 20.6 % for benzene removal from water samples, respectively. 


2016 ◽  
Vol 8 (6) ◽  
pp. 1381-1389 ◽  
Author(s):  
Dedi Futra ◽  
Lee Yook Heng ◽  
Mohamad Zudaidy Jaapar ◽  
Alizar Ulianas ◽  
Kasra Saeedfar ◽  
...  

Molecularly imprinted (MIP) polymeric microspheres are generally a more stable material for hormone sensing application.


Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 3 ◽  
Author(s):  
Miguel S. P. Sousa ◽  
Cristián A. Ferretti ◽  
María N. Kneeteman ◽  
Leonardo L. Paim

The sensors modified carbon nanotubes and molecularly imprinted polymers are an excellent choice for the determination of D-arabinose, because they have high selectivity and sensitivity for analysis. This allows the control and optimization of the second generation ethanol production process, given the clear understanding of the chemical changes that occur through the hydrolysis of lignocellulosic biomass. For this reason, the present work presents a chemical study of the functional groups of the chemical species present on the sensor surface by the Fourier transform infrared spectroscopy (FT-IR) technique and a morphological analysis by the scanning electron microscopy (SEM) technique.


2016 ◽  
Vol 212 ◽  
pp. 322-332 ◽  
Author(s):  
Ederson dos Santos Moretti ◽  
Fernanda Midori de Oliveira ◽  
Guilherme Luiz Scheel ◽  
Luiz Henrique DalĺAntônia ◽  
Dionísio Borsato ◽  
...  

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