Surface functionalisation of polypropylene hernia-repair meshes by RF-activated plasma polymerisation of acrylic acid and silver nanoparticles

2015 ◽  
Vol 328 ◽  
pp. 287-295 ◽  
Author(s):  
Roberto Nisticò ◽  
Andrea Rosellini ◽  
Paola Rivolo ◽  
Maria Giulia Faga ◽  
Roberta Lamberti ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acrylic Acid ◽  
Hernia Repair ◽  
Surface Functionalisation ◽  
Plasma Polymerisation

scholarly journals Effect of acrylic acid feed contents of microgels on catalytic activity of silver nanoparticles fabricated hybrid microgels

2015 ◽  
Vol 39 ◽  
pp. 96-107 ◽  
Author(s):  
Zahoor H. FAROOQI ◽  
Shanza Rauf KHAN ◽  
Robina BEGUM ◽  
Farah KANWAL ◽  
Ahsan SHARIF ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Catalytic Activity ◽  
Acrylic Acid ◽  
Hybrid Microgels

scholarly journals Symmetry Breaking by Surface Blocking: Synthesis of Bimorphic Silver Nanoparticles, Nanoscale Fishes and Apples

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Nicole Cathcart ◽  
Vladimir Kitaev
Keyword(s):  
Silver Nanoparticles ◽  
Acrylic Acid ◽  
Symmetry Breaking ◽  
Metal Nanoparticle ◽  
Shape Design ◽  
Seeded Growth ◽  
Nanoparticle Growth ◽  
Powerful Approach ◽  
Advanced Applications ◽  
Nucleation Point

Abstract A powerful approach to augment the diversity of well-defined metal nanoparticle (MNP) morphologies, essential for MNP advanced applications, is symmetry breaking combined with seeded growth. Utilizing this approach enabled the formation of bimorphic silver nanoparticles (bi-AgNPs) consisting of two shapes linked by one regrowth point. Bi-AgNPs were formed by using an adsorbing polymer, poly(acrylic acid), PAA, to block the surface of a decahedral AgNP seed and restricting growth of new silver to a single nucleation point. First, we have realized 2-D growth of platelets attached to decahedra producing nanoscale shapes reminiscent of apples, fishes, mushrooms and kites. 1-D bimorphic growth of rods (with chloride) and 3-D bimorphic growth of cubes and bipyramids (with bromide) were achieved by using halides to induce preferential (100) stabilization over (111) of platelets. Furthermore, the universality of the formation of bimorphic nanoparticles was demonstrated by using different seeds. Bi-AgNPs exhibit strong SERS enhancement due to regular cavities at the necks. Overall, the reported approach to symmetry breaking and bimorphic nanoparticle growth offers a powerful methodology for nanoscale shape design.

Evaluation of the permeability of silver nanoparticles in polymer films of sulfonated polystyrene-co-acrylic acid

2017 ◽  
Vol 520 ◽  
pp. 78-84
Author(s):  
Marcos Marques da Silva Paula ◽  
Helton Jeremias de Souza ◽  
Carina Búrigo ◽  
Jamile Thön Langbehn ◽  
Alice Scarabelot Baesso ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acrylic Acid ◽  
Polymer Films ◽  
Sulfonated Polystyrene

scholarly journals Preparation And Characterization of Sodium Alginate/Acrylic Acid Composite Hydrogels Conjugated To Silver Nanoparticles As An Antibiotic Delivery System

2021 ◽  
Author(s):  
Parvaneh Mohamadinia ◽  
Navideh Anarjan
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Acrylic Acid ◽  
Sodium Alginate ◽  
Release Kinetics ◽  
Silver Ions ◽  
Composite Hydrogels ◽  
Gel Fraction ◽  
Good Biocompatibility ◽  
The Impact

Abstract Hydrogels are specific groups of polymers that are highly swellable in aqueous solutions, despite their water-in-soluble structures. Thus, they are promising drug delivery systems attributable to their unique characteristics such as high hydrophilicity, high controllability, facile production routines and, good biocompatibility. The aim of this research was the preparation of sodium alginate/acrylic acid composite hydrogels conjugated to silver nanoparticles to deliver the cephalexin as a model antibiotic compound. The reduction of silver ions into silver nanoparticles as well as the stabilization of created nanoparticles ensued simultaneously with hydrogel backbone formulation during microwave irradiation and monomer cross-linking processes. The impact of acrylic acid and silver ions concentrations and also the radiation time of microwave were then investigated on the main characteristics of hydrogels, namely, swelling ratio, gel fraction, cephalexin load and, antibacterial activity. The results indicated that the hydrogels’ characteristics could be significantly predicted by studied all independent parameters, through various second-order polynomial models. The multiple optimization analysis suggested that the prepared hydrogels using 7.8 g acrylic acid and 1.5 g silver nitrate and 1 min microwave radiation could give the best hydrogels with the highest swelling degree, gel fraction, cephalexin absorption and, antibacterial activity. The morphology and either absorption or release kinetics of cephalexin by/from the optimum prepared hydrogels were also investigated. No significant differences between the experimental and predicted data was confirmed the suitability of the suggested models.

Temporal Evolution of an Electron-Free Afterglow in the Pulsed Plasma Polymerisation of Acrylic Acid

2008 ◽  
Vol 112 (13) ◽  
pp. 3938-3947 ◽  
Author(s):  
Ian Swindells ◽  
Sergey A. Voronin ◽  
Paul M. Bryant ◽  
Morgan R. Alexander ◽  
James W. Bradley
Keyword(s):  
Acrylic Acid ◽  
Temporal Evolution ◽  
Pulsed Plasma ◽  
Plasma Polymerisation
Sign in / Sign up

Export Citation Format

Share Document