Photoelectrochemical bilirubin biosensor based on Fe3O4/hydroxyapatite/molecularly imprinted polypyrrole nanoparticles

Submicron magnetic core conducting polypyrrole polymer shell: Preparation and characterization

“…In addition, peaks at 1547 cm -1 and 1037 cm -1 were attributed, respectively, to C=C stretching and =C-H in plane bending vibration from poly(pyrrole-co-pyrrole-2-carboxylic acid) rings; the peak at 1170 cm -1 was ascribed to C-N stretching vibration [28,29]. While the signal at 911 cm -1 was attributed to =C-H out-of-plane bending vibration [30]. Figure 4A shows the thermogram of ME used as seed during polymerization.…”

Facile synthesis of Fe3O4/SiO2/molecularly imprinted hydroxyapatite nanocomposite and its enhanced photocatalytic degradation of target contaminant

“…The accommodation of magnetic nanocrystallites into HAP matrix has been reported by several researchers and used as a high-performance heterogeneous catalyst [4][5][6]. The core-shell Fe 3 O 4 /HAP nanoparticles have been successfully prepared and used as photocatalysts for photocatalytic degradation of organics in our previous report [7,8]. Although the nanoparticles with a magnetic core and a HAP shell can better realize the separation of HAP photocatalyst, the photocatalytic activity is unfavorable.…”

Self‐powered polymer–metal oxide hybrid solar cell for non‐enzymatic potentiometric sensing of bilirubin

“…Even though enzymatic biosensors are highly specific, selective and sensitive, they are unstable and require special chemistry to improve the stability, temperature sensitive and expensive. In the context of development of non‐enzymatic sensors development, metal (Mn–Cu, (Noh, Won, & Shim, ) Au), polymer‐modified Au electrodes (Huang et al, ), graphite, single‐ and multi‐walled carbon nanotubes, graphene, screen‐printed electrodes and nanographite electrodes (Balamurugan & Berchmans, ; Feng et al, ; Huang et al, ; Santhosh, Chinnadayyala, Singh, & Goswami, ; Taurino, Hoof, Micheli, & Carrara, ; Wang, Wang, & Fang, ; Yang, Shang, Zhang, & Zhu, ; Yang, Yan, & Zhang, ; Zhang, Bai, & Yang, ) are reported for the non‐enzymatic BR quantification. But, these studies utilized the conventional three‐electrode system connected to a potentiostat for applying an external power supply for induction of reaction, signal processing and display apart from huge difficulty in electronic waste which pollute the environment.…”