NOVEL HYBRID METAL-POLYMER NANOCOMPOSITE MAGNETIC MATERIAL BASED ON POLYPHENOXAZINE AND CO-NANOPARTICLES

2013 ◽  
Author(s):  
R. Abargues ◽  
M. L. Martinez-Marco ◽  
P. J. Rodriguez-Canto ◽  
J. Marques-Hueso ◽  
J. P. Martinez-Pastor

Proceedings ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 18
Author(s):  
KumarBairagi ◽  
Goyal ◽  
NishithVerma

Methyl nicotinate (MN) is an important tuberculosis biomarker, and can be effectively measured using electrochemical methods. In this study, we have developed a novel N-doped phenolic polymer nanocomposite in situ dispersed with reduced graphene oxide and cobalt (Co)-nanoparticles as a sensor electrode (Co-rGO/PC). Co-nanoparticles were used for the MN recognition. Carbonization was performed for the reduction of GO and the synthesis of Co-nanoparticles. The prepared electrode materials were characterized using SEM, EDS, EIS, and CV. Tested using differential pulse voltammetry, Co-rGO/PC showed its pplicability (RSD < 6%) over 0.05–20.0 mg L−1 MN concentration with high sensitivity (S/N ratio = 3). The present method and materials can also be used for the development of sensors for the other biomarkers.


2007 ◽  
Vol 18 (12) ◽  
pp. 125604 ◽  
Author(s):  
D K Avasthi ◽  
Y K Mishra ◽  
D Kabiraj ◽  
N P Lalla ◽  
J C Pivin

2007 ◽  
Vol 204 (6) ◽  
pp. 1699-1705 ◽  
Author(s):  
J. Macanás ◽  
J. Parrondo ◽  
M. Muñoz ◽  
S. Alegret ◽  
F. Mijangos ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4235
Author(s):  
Alexey A. Zezin ◽  
Alexey A. Zharikov ◽  
Artem I. Emel’yanov ◽  
Alexander S. Pozdnyakov ◽  
Galina F. Prozorova ◽  
...  

Metal–polymer nanocomposite polyvinyltriazole–silver nanoparticles were obtained using one-pot synthesis in irradiated aqueous solutions of 1-vinyl-1,2,4-triazole (VT) and silver ions. Gel permeation chromatography data show that upon radiation initiation, the molecular weight of poly(1-vinyl-1,2,4-triazole) increases with increasing monomer concentration. To study the kinetics of polymerization and the features of the radiation–chemical formation of nanoparticles, UV-Vis spectroscopy was used. TEM images show a relatively small average size of the forming nanoparticles (2–3 nm) and a narrow size distribution, which shows the effective stabilization of nanoparticles by triazole substituents at a molar ratio of VT and silver ions of 25/1. The addition of ethyl alcohol was used to increase the efficiency of synthesis and suppress the crosslinking of macromolecules in solution. The results of the work show that aqueous–alcoholic solutions of 1 wt.% VT can be used to obtain soluble nanocomposite materials. 10 wt.% monomer solutions have prospects for use in the preparation of polymer gels filled with nanoparticles.


2015 ◽  
Vol 57 (1) ◽  
pp. 27-30 ◽  
Author(s):  
I. M. Papisov ◽  
G. Yu. Ostaeva ◽  
A. I. Papisova ◽  
V. F. Kozlovsky ◽  
V. V. Grushina ◽  
...  

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