Journal ArticleDOI
Synthesis and characterization of dendritic polypyrrole silver nanocomposite and its application as a new urea biosensor
TLDR
In this paper, polypyrrole and its silver nanocomposite were electrochemically synthesized from aqueous solutions containing pyrrole, potassium chloride (KCl), and an anionic surfactant sodium dodecyl sulphate (NaDS) and compact and dendritic patterns were observed depending on experimental conditions.Abstract:
Polypyrrole and its silver nanocomposite were electrochemically synthesized from aqueous solutions containing pyrrole, potassium chloride (KCl) (system A); pyrrole, KCl, and an anionic surfactant sodium dodecyl sulphate (NaDS) (system B); and pyrrole, silver nitrate, NaDS (system C). Compact and dendritic patterns were observed depending on experimental conditions. The aggregates were characterized by powder X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning electron microscopy, high resolution transmission electron microscopic (HRTEM), and thermal studies (TG/DTG). HRTEM studies indicate that the particle size of PPy-Ag nanocomposite is ∼30 nm. TG studies revealed that systems B and C, have different thermal behavior. Potassium ion selective electrodes were constructed using systems A, B, and C. The electrode prepared with PPy-Ag nanocomposite showed nernstian behavior with maximum slope of 57 mV. NH4+ ion-selective electrode was also constructed for this system based on nonactin-impregnated PVC matrix membrane. Urease enzyme was immobilized at the surface of as made NH4+ ion-selective electrode to develop urea biosensor showing good detection limit. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45705.read more
Citations
More filters
Journal ArticleDOI
Progress of Nanocomposite Membranes for Water Treatment
Claudia Ursino,Roberto Castro-Muñoz,Enrico Drioli,Lassaad Gzara,Mohammad H. Al-Beirutty,Alberto Figoli +5 more
TL;DR: The aim of this work is to provide up-to-date information related to those novel nanocomposite membranes and their contribution for water treatment applications.
Journal ArticleDOI
Recent Progress in the Development of Conducting Polymer-Based Nanocomposites for Electrochemical Biosensors Applications: A Mini-Review
TL;DR: This paper reviews the recent developments in conductive polymer-based nanocomposites and their applications in electrochemical biosensors and starts with a general and concise comparison between the properties of conducting polymers and conducting polymer nanocomPOSites.
Journal ArticleDOI
Ongoing progress on novel nanocomposite membranes for the separation of heavy metals from contaminated water.
Roberto Castro-Muñoz,Roberto Castro-Muñoz,Luisa Loreti González-Melgoza,Octavio García-Depraect +3 more
TL;DR: This comprehensive review elucidates the progress of using different concepts of membranes and potential novel materials for such separations, identifying that polymeric membranes can exhibit a removal efficiency from 77 up to 99%; while novel nanocomposite membranes are able to offer complete removal of heavy metals together with unprecedented permeation rates.
Journal ArticleDOI
Electroconductive multi-functional polypyrrole composites for biomedical applications
Ehsan Nazarzadeh Zare,Tarun Agarwal,Atefeh Zarepour,Filippo Pinelli,Ali Zarrabi,Filippo Rossi,Milad Ashrafizadeh,Aziz Maleki,Mohammad-Ali Shahbazi,Tapas K. Maiti,Rajender S. Varma,Franklin R. Tay,Michael R. Hamblin,Virgilio Mattoli,Pooyan Makvandi +14 more
TL;DR: Polypyrrole is an example of inherently electrically conductive polymer that is employed in the biomedical arena because of its low cost, excellent electroconductive properties, and good biocompatibility as mentioned in this paper.
Journal ArticleDOI
Highly sensing and transducing materials for potentiometric ion sensors with versatile applicability
TL;DR: In this article, the development of cutting-edge solid contact (SC)-ISEs including wearable chip and needle electrodes is summarized, and the current startup status and future research direction of calibration-free ISEs with excellent potential reproducibility are highlighted.
References
More filters
Journal ArticleDOI
Dendrimers Designed for Functions: From Physical, Photophysical, and Supramolecular Properties to Applications in Sensing, Catalysis, Molecular Electronics, Photonics, and Nanomedicine
TL;DR: Dendritic Fluorescent Sensors and Supramolecular Assemblies between Dendrimers and Surfactants or Polymers 1885 4.8.1.
Journal ArticleDOI
Preparation of Cu Nanoclusters within Dendrimer Templates
TL;DR: In this article, a template synthesis strategy for preparing Cu nanoclusters within dendrimer 'nanoreactors' is demonstrated, where Cu(2+) ions are first quantitatively sorbed into the dendromer via a strong coordinative interaction with interior amines and then chemically reduced to yield Cu nanclusters.
Journal ArticleDOI
Polyaniline and polypyrrole pseudocapacitor electrodes with excellent cycling stability.
Tianyu Liu,Lauren Finn,Minghao Yu,Hanyu Wang,Teng Zhai,Teng Zhai,Xihong Lu,Yexiang Tong,Yat Li +8 more
TL;DR: This work demonstrates a simple and general strategy to substantially enhance the cycling stability of conductive polymer electrodes by deposition of a thin carbonaceous shell onto their surface by fabricating stable polymer electrodes with comparable specific capacitance and pseudocapacitive behavior as the bare polymer electrodes.
Journal ArticleDOI