Silver nanoparticles decorated polyhedral oligomeric silsesquioxane nanocages as an effective nanoadditive for improved structural and biological properties of poly(vinylidene fluoride-co-hexafluoropropylene) nanofiltration membrane

Muhammad, Saz; Niazi, Javed H.; Qureshi, Anjum

doi:10.1016/j.mtchem.2021.100643

Cited by 5 publications

(5 citation statements)

References 33 publications

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“…Each chemical structure has a distinctive fingerprint so FTIR analysis is a good choice for chemical structure identification. IR spectra assignments of pure PVC were reported as the following; CH 2 wagging vibration was obtained at 609 cm −1 [24]. C-Cl stretching mode was obtained at 878 cm −1 [20].…”

Section: Ft-irmentioning

confidence: 99%

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Modification on antibacterial activity of PVC/PVDF blend filled with CuO NPs using laser ablation technique

2022

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Nanocomposite of polyvinyl chloride (PVC)/polyvinylidene fluoride (PVDF) have been in situ synthesized. Copper oxide nanoparticles (CuONPs) have been prepared via using the laser ablation technique. Nanoparticles were added to the blend. The properties of the blend were studied before and after adding CuONPs. These properties were characterized by different techniques. Antimicrobial activity of the prepared nanocomposite film was investigated. FTIR data show vibrational spectral bands and the shift of the bands is related to the interaction and the complexation that occurs between blend and nanoparticles. Structural properties and crystallinity of the samples were investigated using XRD diffraction. XRD results illustrated the effect of CuONPs at two new peaks 2θ = 26.25º and 38.41º. These results confirmed the interaction CuO NPs and PVDF/PVC matrix. UV–Visible analyses confirmed the existing of copper oxide nanoparticles and were also used for determining the optical absorption edge. The absorption edges have been obtained at 430–520 nm for all of the doping films. The obtained values for indirect and direct bandgaps were reduced by raising the nanoparticles because of the presence of charge transfer between PVC/PVDF and CuONPs. SEM images illustrateed the presence of CuONPs on the surface of the blend and the morphology changes which occurred to the blend. The antibacterial activity for the nanocomposite proved the antimicrobial effect of copper oxide nanoparticles. The prepared PVC/PVDF/CuONPs are potentially suggesting to be applied for biomedical applications.

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Section: Ft-irmentioning

confidence: 99%

“…It has great attention because of its pyroelectric and characterization. The common uses of PVDF are electricity, batteries, healthcare and pharmaceutics [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Modification on antibacterial activity of PVC/PVDF blend filled with CuO NPs using laser ablation technique

2022

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“…The dry phase inversion method was also used to decorate silver nanoparticles onto polyhedral oligomeric silsesquioxane nanocages to improve the nanofiltration membrane structure and biological properties. The fabricated membranes exhibit an excellent water permeability and antibacterial properties [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Study Effect of nAg Particle Size on the Properties and Antibacterial Characteristics of Polysulfone Membranes

Prihandana

Sriani²,

Muthi’ah

et al. 2022

Nanomaterials

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Polysulfone ultrafiltration membranes were fabricated using various sizes (20, 40, and 90–210 nm) of silver nanoparticles (nAg) blended in a dope solution. To characterize the performance and properties of the prepared membranes, scanning electron microscopy (SEM), water contact angle, protein separation, water flux, and antibacterial tests were conducted. The characterization results revealed that when nAg particles (20 nm) were blended into the base polymer PSF, the PSF/nAg blended membrane had the lowest contact angle (58.5°) and surface energy (110.7 mN/m). When experimenting with ultrafiltration using protein solutions, bare PSF and PSF/nAg-20 blended membranes gave similar values of protein rejection: 93% of bovine serum albumin (BSA) and 70% of lysozyme rejection. Furthermore, SEM studies showed that the surface pore size was reduced by adding 20 nm nAg particles in the casting solution. Most importantly, the introduction of 40 nm nAg particles reduced the growth of bacterial colonies on the membrane surface by up to 72%. These findings revealed that nAg particles are expected to be a potential modifier for the fabrication of an ultrafiltration membrane.

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“…25−27 POSS is one the most popular nanofillers used to form polymeric nanocomposites with enhance mechanical properties and functionality because of its uniform dispersion and infinite functional modifications. 28,29 In order to regulate the content of POSS in a wider range and better improve the mechanical properties of the polymer, it is necessary to adopt a new type of bi-functional POSS to access the main chain of the polymer. Our group and others successfully incorporated bi-functional POSS into the backbone chain of polymers to enhance their mechanical properties (modulus, strength, and hardness).…”

Section: ■ Introductionmentioning

confidence: 99%

“…In this approach, a polymer with high mechanical performance that can assemble into a hierarchical porous structure was designed and synthesized by using bi -functional polyhedral oligomeric silsesquioxane (POSS). POSS is a nanoscale cage structure composed of an inorganic Si–O core (∼0.5 nm) surrounded by organic functional groups. − POSS is one the most popular nanofillers used to form polymeric nanocomposites with enhance mechanical properties and functionality because of its uniform dispersion and infinite functional modifications. , In order to regulate the content of POSS in a wider range and better improve the mechanical properties of the polymer, it is necessary to adopt a new type of bi -functional POSS to access the main chain of the polymer. Our group and others successfully incorporated bi -functional POSS into the backbone chain of polymers to enhance their mechanical properties (modulus, strength, and hardness). − In the present work, POSS units were employed as both nanofiller to improve the mechanical performance and the hydrophobic monomer to facilitate phase separation and assembly.…”

Section: Introductionmentioning

confidence: 99%

Polyhedral Oligomeric Silsesquioxane as a Polarity Mediator and Reinforced Nanofiller for Fabricating Robust and Hierarchical Porous Film for Cell Bioengineering

Wang

Tian

et al. 2022

ACS Appl. Polym. Mater.

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A hierarchical porous polymer film that can provide a balance of mechanical properties and specific surface areas and sustain cell functions has become a major target for material scientists and bioengineers in the past decade. However, the limited availability of materials that exhibit high mechanical performance and easily form hierarchical porous structures hinder the progress in practical application. Here, we show the design of a polyhedral oligomeric silsesquioxane (POSS) hybrid polymer by incorporating a bi-functional glycidyl-propyl POSS (G-POSS) into the epoxy polymer backbone, in which POSS functions as both a nanofiller to reinforce the mechanical performance and as the polarity mediator to induce self-assembly of the polymer chains into a three-dimensional (3D) connected porous structure. Nanoindentation shows that the incorporation of POSS leads to a 25 and 36% increase in modulus and hardness, respectively. Scanning electron microscopy results show that POSS helps tune the hydrophobicity of the polymer and assists in the interface assembly, allowing easy formation of a densely packed two-dimensional or 3D hierarchical porous structure. Culture of mouse embryonic fibroblast cells demonstrates that the hybrid polymer scaffold provides prominent advantages ranging from enhanced cell adhesion to proliferation. Particularly, the 3D hierarchical porous film allows good nutrient supply and cell communication, which better mimics the in vivo microenvironment with less cell morphology change during cell proliferation. Hence, the successful integration of high material strength and easy formation of an interconnected porous structure shows that POSS hybrid polymers have strong potential for applications in the fabrication of cell culture platforms and future translation in tissue repair and regeneration.

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Silver nanoparticles decorated polyhedral oligomeric silsesquioxane nanocages as an effective nanoadditive for improved structural and biological properties of poly(vinylidene fluoride-co-hexafluoropropylene) nanofiltration membrane

Cited by 5 publications

References 33 publications

Modification on antibacterial activity of PVC/PVDF blend filled with CuO NPs using laser ablation technique

Modification on antibacterial activity of PVC/PVDF blend filled with CuO NPs using laser ablation technique

Study Effect of nAg Particle Size on the Properties and Antibacterial Characteristics of Polysulfone Membranes

Polyhedral Oligomeric Silsesquioxane as a Polarity Mediator and Reinforced Nanofiller for Fabricating Robust and Hierarchical Porous Film for Cell Bioengineering

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