Thermoresponsive antimicrobial wound dressings via simultaneous thiol-ene polymerization and in situ generation of silver nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 66024-66036 ◽  
Author(s):  
Zahra Abdali ◽  
Hamid Yeganeh ◽  
Atefeh Solouk ◽  
Reza Gharibi ◽  
Marziyeh Sorayya
Keyword(s):  
Silver Nanoparticles ◽  
Wound Dressing ◽  
Wound Dressings ◽  
Polymerization Reaction ◽  
In Situ Generation

Thermoresponsive and antimicrobial wound dressing via thiol-ene polymerization reaction.

In Situ Generation of Silver Nanoparticles in Ion-exchangeable Polymer Photonic Crystals

2011 ◽  
Vol 40 (11) ◽  
pp. 1233-1234 ◽  
Author(s):  
Takaaki Tsuruoka ◽  
Shota Kumazaki ◽  
Hidemi Nawafune ◽  
Kensuke Akamatsu
Keyword(s):  
Silver Nanoparticles ◽  
Photonic Crystals ◽  
In Situ Generation

scholarly journals Surface Functionalization of an Aluminum Alloy to Generate an Antibiofilm Coating Based on Poly(Methyl Methacrylate) and Silver Nanoparticles

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2747 ◽  
Author(s):  
Lisa Muñoz ◽  
Laura Tamayo ◽  
Miguel Gulppi ◽  
Franco Rabagliati ◽  
Marcos Flores ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Aluminum Alloy ◽  
Methyl Methacrylate ◽  
In Situ Polymerization ◽  
Polymerization Reaction ◽  
Experimental Protocol ◽  
Poly Methyl Methacrylate ◽  
Methacrylate Monomer ◽  
Methyl Methacrylate Monomer

An experimental protocol was studied to improve the adhesion of a polymeric poly(methyl methacrylate) coating that was modified with silver nanoparticles to an aluminum alloy, AA2024. The nanoparticles were incorporated into the polymeric matrix to add the property of inhibiting biofilm formation to the anticorrosive characteristics of the film, thus also making the coating antibiocorrosive. The protocol consists of functionalizing the surface through a pseudotransesterification treatment using a methyl methacrylate monomer that bonds covalently to the surface and leaves a terminal double bond that promotes and directs the polymerization reaction that takes place in the process that follows immediately after. This results in more compact and thicker poly(methyl methacrylate) (PMMA) coatings than those obtained without pseudotransesterification. The poly(methyl methacrylate) matrix modified with nanoparticles was obtained by incorporating both the nanoparticles and the methyl methacrylate in the reactor. The in situ polymerization involved combining the pretreated AA2024 specimens combined with the methyl methacrylate monomer and AgNps. The antibiofilm capacity of the coating was evaluated against P. aeruginosa, with an excellent response. Not only did the presence of bacteria decrease, but the formation of the exopolymer subunits was 99.99% lower than on the uncoated aluminum alloy or the alloy coated with unmodified poly(methyl methacrylate). As well and significantly, the potentiodynamic polarization measurements indicate that the PMMA-Ag coating has a good anticorrosive property in a 0.1-M NaCl medium.

scholarly journals Dual step irradiation process for in situ generation and patterning of silver nanoparticles in a photocured film

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 14832-14843 ◽  
Author(s):  
I. Roppolo ◽  
A. Doriguzzi Bozzo ◽  
M. Castellino ◽  
A. Chiappone ◽  
D. Perrone ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
In Situ Generation ◽  
Irradiation Process

Novel dual step irradiation process for the in situ generation and patterning of silver nanoparticles in a photocured matrix was developed.

scholarly journals Special Resins for Stereolithography: In Situ Generation of Silver Nanoparticles

Polymers ◽  
2018 ◽  
Vol 10 (2) ◽  
pp. 212 ◽  
Author(s):  
Gabriele Taormina ◽  
Corrado Sciancalepore ◽  
Federica Bondioli ◽  
Massimo Messori
Keyword(s):  
Silver Nanoparticles ◽  
In Situ Generation

scholarly journals 3D Printing: 3D Printing of Conductive Complex Structures with In Situ Generation of Silver Nanoparticles (Adv. Mater. 19/2016)

2016 ◽  
Vol 28 (19) ◽  
pp. 3711-3711 ◽  
Author(s):  
Erika Fantino ◽  
Annalisa Chiappone ◽  
Ignazio Roppolo ◽  
Diego Manfredi ◽  
Roberta Bongiovanni ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
3D Printing ◽  
Complex Structures ◽  
In Situ Generation

scholarly journals Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications

2020 ◽  
Vol 10 (2) ◽  
pp. 185-198 ◽  
Author(s):  
Katarina Nešović ◽  
Ana Janković ◽  
Tamara Radetić ◽  
Aleksandra Perić-Grujić ◽  
Maja Vukašinović-Sekulić ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Wound Dressing ◽  
Release Kinetics ◽  
Phosphate Buffer Solution ◽  
Wound Dressings ◽  
Poly Vinyl Alcohol ◽  
Burst Release ◽  
Buffer Solution ◽  
Sorption Ability ◽  
Conventional Antibiotics

Polymer-based hydrogel materials are excellent candidates for new-generation wound dressings with improved properties, such as high sorption ability, good mechanical properties and low adhesiveness. Cross-linked hydrogel matrices also serve as excellent carriers for controlled release of antibacterial agents, such as silver nanoparticles (AgNPs), which are preferred over conventional antibiotics due to low propensity to induce bac­terial resistance. In this work, we aim to produce novel silver/poly(vinyl alco­hol)/chitosan (Ag/PVA/CHI) hydrogels for wound dressing applications. The electro­chemi­cal AgNPs syn­thesis provided facile and green method for the reduction of Ag+ ions inside the hydrogel matrices, without the need to use toxic chemical reducing agents. The forma­tion of AgNPs was confirmed using UV-visible spectroscopy, scanning and transmis­sion electron microscopy. Release kinetics was investigated in modified phosphate buffer solution at 37 °C to mimic physiological conditions. Release profiles indicated “burst release” behavior, which is beneficial for wound dressing applications. The antibacterial activity was evaluated against Staphylococcus aureus and Escherichia coli strains using disc-diffusion test, and non-toxicity of hydrogels was proved by dye-exclusion test. The obtained results confirmed strong potential of Ag/PVA/CHI hydrogels for biomedical applications.

3D Printing of Conductive Complex Structures with In Situ Generation of Silver Nanoparticles

2016 ◽  
Vol 28 (19) ◽  
pp. 3712-3717 ◽  
Author(s):  
Erika Fantino ◽  
Annalisa Chiappone ◽  
Ignazio Roppolo ◽  
Diego Manfredi ◽  
Roberta Bongiovanni ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
3D Printing ◽  
Complex Structures ◽  
In Situ Generation
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