Producción Científica Profesorado

Colloidal synthesis of Au nanoparticles using polyelectrolytes with 1,3,4-thiadiazole as reducing agents



Alvarez Romero, Giaan Arturo

2019

Martín Caldera Villalobos Miriam Martins Alho Jesús García Serrano Giaan Arturo Álvarez Romero Ana M. Herrera González. Colloidal synthesis of Au nanoparticles using polyelectrolytes with 1,3,4-thiadiazole as reducing agents. Journal of Applied Polymer ScienceVolume 136, Issue 29, 5 August 2019, Article number 47790 DOI: 10.1002/app.47790


Abstract


Heterocyclic compounds are well known for their biological activity and coordination properties. Some heterocyclic compounds have been employed in the stabilization against coalescence of metallic nanoparticles in colloidal solutions, for example, tetrazole, triazole, and pyrazole. The aim of this work is to design new polyelectrolytes with heterocyclic pendant groups useful as reducing agents of Au 3+ and as stabilizing agents for the synthesis of colloidal Au nanoparticles. Thus, polyelectrolytes with thiosemicarbazone and 1,3,4-thiadiazole pendant groups were used as reducing agents of Au 3+ ions and stabilizing agents of Au nanoparticles. The voltammetry study of the polyelectrolytes showed that one with thiosemicarbazone pendant groups is the better reducing agent than polyelectrolytes with heterocyclic pendant groups. The polyelectrolytes can control the growth of the nanoparticles, obtaining structures with an average size of 9 nm. In this study, it was concluded that the nature of the heterocyclic group does not have an effect on the shape of nanoparticles and quasi-spherical nanoparticles were obtained with all polyelectrolytes.



Producto de Investigación




Artículos relacionados

Potentiometric Behavior of Diverse Polypyrrolesulphate Films Electro Synthesized on Graphite Epoxy ...

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinat...

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing dipy...

Determination of non-steroidal anti-inflammatory drugs in wastewaters by magnetic matrix solid phase...

Determination of glucose by flow injection analysis with amperometric detection at Fe(III)-(tris(3,5...

Potentiometric quantification of saccharin by using a selective membrane formed by pyrrole electropo...

Prevalence and Antimicrobial Resistance Patterns of Salmonella from Different Raw Foods in Mexico

Chemical studies of anthocyanins: A review

Sequential Injection Spectrophotometric Determination of Diclofenac in Urine and Pharmaceutical Form...

Magnetic solid phase extraction based on phenyl silica adsorbent for the determination of tetracycli...