Synthesis, characterization and antimicrobial study of poly (methyl methacrylate)/Ag nanocomposites

Siddiqui, Nayma; Bhardwaj, Arpan; Hada, Renu; Yadav, Vishwajeet Singh; Goyal, Deepti

doi:10.1016/j.vacuum.2018.03.036

Cited by 13 publications

(6 citation statements)

References 29 publications

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“…Particle size is often used to characterize nanosystems because it facilitates the understanding of subsequent dispersion and aggregation (Birnbaum et al, 2000). The literature reports that a great variation can be observed between nano and micrometric particle sizes when PMMA is used as a polymer (Siddiqui et al, 2018). Additionally, the differences between the sizes of Np-Pyo and Np-B may be related to their incorporation into the organic phase with PMMA, which may decrease the viscosity of this phase, facilitating the diffusion to the aqueous phase.…”

Section: A Pyocyanin Nanoparticlesmentioning

confidence: 99%

Antifungal Coating Based on Pyocyanin Nanoparticles (Np-Pyo)

Silva

Amaral

Kretzschmar

et al. 2022

EJBIO

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Pyocyanin is a pigment produced by 95% of Pseudomonas aeruginosa strains and exhibits antimicrobial properties that can be used for different purposes. In this work, PMMA-based nanoparticles that were encapsulated into 200 µg/mL of pyocyanin (Np-Pyo) were produced by the nanoprecipitation method. They were evaluated with respect to antifouling activity against Aspergillus sp. and Penicillium sp. With an encapsulation efficiency of 56%, the NpPyo remained stable for 90 days. Their characteristics were satisfactory for the following parameters: average size (616.90±38.30 nm; blank: 282.58±22.89 nm), polydispersion index (0.51±0.01; blank: 0.45±0.78), zeta potential (-5.13±0.41 mV; blank: -6.44±1.12 mV) and pH (6.18±0.03; blank: 6.42±0.01). The in vitro biofilm formation assay was performed on dolomite coupons measuring 1 cm2, on which the formulation was applied. There were tested conditions with and without immersion for 72h at 30 ºC. In the tests with the immersed coupons, there was fungal colonization; this was, however, lower than that observed in the control. A. niger decreased by 3 log units. No growth was observed on the coupons that were not immersed. The results were promising and demonstrated viability as a means of antifouling protection, particularly on dry surfaces.

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Section: A Pyocyanin Nanoparticlesmentioning

confidence: 99%

Antifungal Coating Based on Pyocyanin Nanoparticles (Np-Pyo)

Silva

Amaral

Kretzschmar

et al. 2022

EJBIO

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“…Various polymers such as polyurethane, waterborne polyurethane, and acrylate resins have been used to produce AgNP composites. [36][37][38] Among them, acrylate resins have attracted broad attention, which is ascribed to their desirable properties including excellent chemical and thermal stabilities and superior mechanical properties. 39,40 Various approaches have been adopted to incorporate AgNPs into polymer matrices such as in situ polymerization, solution blending, and melt blending.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, numerous attempts have been made to address this need for antibacterial coating materials by introducing AgNPs into the polymer matrix. Various polymers such as polyurethane, waterborne polyurethane, and acrylate resins have been used to produce AgNP composites 36–38 . Among them, acrylate resins have attracted broad attention, which is ascribed to their desirable properties including excellent chemical and thermal stabilities and superior mechanical properties 39,40 .…”

Section: Introductionmentioning

confidence: 99%

Poly(methyl methacrylate‐co‐butyl acrylate) copolymer/Ag nanocomposites prepared by latex mixing for multifunctional coatings

Li,

Luo,

2023

Polymer Composites

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Inspired by mussel chemistry, we presented a facile and eco‐friendly method to synthesize silver nanoparticles (AgNPs) using dopamine as a reductant and stabilizer. The synthesized AgNPs as an antibacterial agent and photothermal filler were further introduced to random copolymers of methyl methacrylate and butyl acrylate (MMA‐co‐BA) via latex mixing. The morphology and structure of the formed AgNPs were confirmed by transmission electron microscopy (TEM), UV–Vis spectrum, and x‐ray powder diffraction (XRD). The results showed that the synthesized AgNPs were spherical in the size of 5–30 nm with the characteristic crystalline structure of AgNPs. Mechanical properties of MMA‐co‐BA were significantly enhanced by the introduction of AgNPs. The MMA‐co‐BA/Ag nanocomposite films showed antibacterial activity against E. coli and S. aureus. Moreover, the scratches on the MMA‐co‐BA/Ag nanocomposite film can be healed under infrared light irradiation, which indicated that AgNPs enhanced the self‐healing ability of the MMA‐co‐BA. This work offers a viable avenue for developing antibacterial activity and self‐healing multifunctional coatings.Highlights Silver nanoparticles modified by dopamine are introduced to acrylic copolymer. Acrylic copolymer/Ag nanocomposites exhibit antibacterial activity. Acrylic copolymer/Ag nanocomposites have photothermal performance. Acrylic copolymer/Ag nanocomposites have self‐healing ability.

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“…There are different ways of preparing a nanocomposite, such as melt mixing 11,12 , solution mixing 13 and in situ polymerization 14,15 . In in situ polymerizations, polymerization is carried out in the presence of the nanoparticles, either in homogeneous or heterogeneous systems.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(methylmethacrylate-cobutylacrylate) Nanocompounds and Silver Nanoparticles Using Sustainable Method

Vera-García,

Faías-Cepeda,

Vázquez-Rodríguez

et al. 2023

Afinidad

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Nanocomposites of poly(methylmethacrylate-cobutylacrylate) P(MMA-co-BuA) and silver nanoparticles (NPsAg) synthesized with extracts of O. ficus-indica (OFI) and A. vera (AV) were obtained by using microwaves. The nanocomposites were synthesized by “in situ” emulsion polymerization, where different concentrations of NPsAg (0.05, 0.1, 0.5 and 1%) with respect to the polymer were studied. Films were formed from the latex, which were characterized by different techniques. Using UV-Vis, the characteristic absorbance of the surface plasmon resonance of the NPsAg in the nanocomposite was observed in the range of 415-436 nm. The thermal stability of the nanocomposites was carried out using TGA, where it was observed that the higher the concentration of NPsAg, the lower thethermal stability. The DSC results showed that the glass transition temperatures (Tg) for the nanocomposites with nanoparticles are between 8 and 12ºC. The percentage elongation of the nanocomposites was 400%, in addition, the Young’s modulus and the tensile strength of the same were determined, observing that the higher the content of NPsAg, the lower the elastic behavior and the mechanical resistance of the nanocomposites. Using SEM, it was confirmed that the NPsAg maintain a spherical morphology. Finally, using FTIR, the possible interaction between the PMMA-Co-BuA copolymer and the NPsAg was determined.

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Synthesis, characterization and antimicrobial study of poly (methyl methacrylate)/Ag nanocomposites

Cited by 13 publications

References 29 publications

Antifungal Coating Based on Pyocyanin Nanoparticles (Np-Pyo)

Antifungal Coating Based on Pyocyanin Nanoparticles (Np-Pyo)

Poly(methyl methacrylate‐co‐butyl acrylate) copolymer/Ag nanocomposites prepared by latex mixing for multifunctional coatings

Synthesis of Poly(methylmethacrylate-cobutylacrylate) Nanocompounds and Silver Nanoparticles Using Sustainable Method

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