naa a22 4500 510735061 CHVBK 20180411083006.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s12039-013-0393-y doi (NATIONALLICENCE)springer-10.1007/s12039-013-0393-y Aqueous dispersions of silver nanoparticles in polyelectrolyte solutions [Elektronische Daten] [DAN DONESCU, RALUCA SOMOGHI, MARIUS GHIUREA, RALUCA IANCHIS, CRISTIAN PETCU, STEFANIA GAVRILIU, MAGDALENA LUNGU, CLAUDIA GROZA, CARMEN IONESCU, CARMEN PANZARU] In this report, we present the versatile and effective technique, using environmental friendly reductant glucose, to prepare stable silver nanodispersions by reduction of Ag+ ions. Alternant copolymers of maleic anhydride with vinyl acetate and styrene sulphonate sodium acid salt polyelectrolytes were synthesized in aqueous solution and used as stabilizers. The formation of nano silver particles was confirmed by UV-Vis spectrophotometry and TEM measurements. Dynamic Light Scattering (DLS) measurements were needed to study how the reagents and their concentrations influence particle size. SEM images show the nanostructure of the hybrid films and indicate a strong interaction between the polyelectrolyte and the silver NPs. Moreover, the silver NPs could be stored for one year without observation of aggregates or sedimentation. The final solid products obtained after evaporating to dryness can be used to produce stable dispersions upon mixing with water. Few of the final products were found to exhibit a high antibacterial and antifungal activity. Graphical Abstract The possibility to obtain aqueous dispersions of silver nanoparticles in polyelectrolytes solutions was investigated. In order to synthesize stable silver nanodispersions, glucose, an environmental friendly reductant was used. The polyelectrolytes were alternant copolymers of maleic anhydride with vinyl acetate and styrene sulphonate sodium acid salt in aqueous solutions. Indian Academy of Sciences, 2013 Silver nanodispersions nationallicence polyelectrolytes nationallicence antibacterial and antifungal activity nationallicence DONESCU DAN Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut SOMOGHI RALUCA Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut GHIUREA MARIUS Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut IANCHIS RALUCA Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut PETCU CRISTIAN Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut GAVRILIU STEFANIA National R-D Institute for Electrical Engineering ICPE - CA, 313 Splaiul Unirii, 030138, Bucharest, Romania aut LUNGU MAGDALENA National R-D Institute for Electrical Engineering ICPE - CA, 313 Splaiul Unirii, 030138, Bucharest, Romania aut GROZA CLAUDIA National R-D Institute for Electrical Engineering ICPE - CA, 313 Splaiul Unirii, 030138, Bucharest, Romania aut IONESCU CARMEN University of Medicine and Pharmacy ‘Gr. T. Popa', 16 Universitatii Street, 700115, Iassy, Romania aut PANZARU CARMEN University of Medicine and Pharmacy ‘Gr. T. Popa', 16 Universitatii Street, 700115, Iassy, Romania aut Journal of Chemical Sciences Springer-Verlag 125/2(2013-03-01), 419-429 0974-3626 125:2<419 2013 125 12039 https://doi.org/10.1007/s12039-013-0393-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-013-0393-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- DONESCU DAN Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut NATIONALLICENCE 700 1- SOMOGHI RALUCA Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut NATIONALLICENCE 700 1- GHIUREA MARIUS Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut NATIONALLICENCE 700 1- IANCHIS RALUCA Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut NATIONALLICENCE 700 1- PETCU CRISTIAN Polymer Department, National R-D Institute for Chemistry and Petrochemistry - ICECHIM, 202 Splaiul Independentei, 060021, Bucharest, Romania aut NATIONALLICENCE 700 1- GAVRILIU STEFANIA National R-D Institute for Electrical Engineering ICPE - CA, 313 Splaiul Unirii, 030138, Bucharest, Romania aut NATIONALLICENCE 700 1- LUNGU MAGDALENA National R-D Institute for Electrical Engineering ICPE - CA, 313 Splaiul Unirii, 030138, Bucharest, Romania aut NATIONALLICENCE 700 1- GROZA CLAUDIA National R-D Institute for Electrical Engineering ICPE - CA, 313 Splaiul Unirii, 030138, Bucharest, Romania aut NATIONALLICENCE 700 1- IONESCU CARMEN University of Medicine and Pharmacy ‘Gr. T. Popa', 16 Universitatii Street, 700115, Iassy, Romania aut NATIONALLICENCE 700 1- PANZARU CARMEN University of Medicine and Pharmacy ‘Gr. T. Popa', 16 Universitatii Street, 700115, Iassy, Romania aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer-Verlag 125/2(2013-03-01), 419-429 0974-3626 125:2<419 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer