Preparation of hydrogel/silver nanohybrids mediated by tunable-size silver nanoparticles for potential antibacterial applications
MetadataShow full item record
In this study, a versatile synthesis of silver nanoparticles of well-defined size by using hydrogels as a template and stabilizer of nanoparticle size is reported. The prepared hydrogels are based on polyvinyl alcohol and maleic acid as crosslinker agents. Three hydrogels with the same nature were synthesized, however, the crosslinking degree was varied. The silver nanoparticles were synthesized into each prepared hydrogel matrix achieving three significant, different-sized nanoparticles that were spherical in shape with a narrow size distribution. It is likely that the polymer network stabilized the nanoparticles. It was determined that the hydrogel network structure can control the size and shape of the nanoparticles. The hydrogel/silver nanohybrids were characterized by swelling degree, Thermal Gravimetric Analysis (TGA), Fourier Transform Infrared (FT-IR), Scanning Electron Microscopy (SEM) and Transmission Electron Microscope (TEM). Antibacterial activity against Staphylococcus aureus was evaluated, confirming antimicrobial action of the encapsulated silver nanoparticles into the hydrogels. © 2019 by the authors.
Showing items related by title, author, creator and subject.
Co0superparamagnetic nanoparticles stabilized by an organic layer coating with antimicrobial activity (2020) Santana, Paula A.; Castillo, Carolina A.; Michea, Sebastián A.; Venegas-Yazigi, D.; Paredes-García, Verónica (Royal Society of Chemistry, 2020-09-18)Cobalt (Co) is one of the most promising materials in nanotechnology due to its superior magnetic properties. However, due to the high cytotoxicity of cobalt, the activity in biological systems has been little studied. In ...
ArticleBello-Vieda N.J.; Pastrana H.F.; Garavito M.F.; Ávila A.G.; Celis A.M.; Muñoz-Castro A.; Restrepo S.; Hurtado J.J. (MDPI AG, 2018)
Porous Nanogold/Polyurethane Scaffolds with Improved Antibiofilm, Mechanical, and Thermal Properties and with Reduced Effects on Cell Viability: A Suitable Material for Soft Tissue Applications (2020) Tamayo L.; Acuña D.; Riveros A.L.; Kogan M.J.; Azócar M.I.; Páez M.; Leal M.; Urzúa M.; Cerda E. (American Chemical Society, 2018)