Novel electrospun polyvinylidene fluoride-graphene oxide-silver nanocomposite membranes with protein and bacterial antifouling characteristics

Liu, Chen; Shen, Jie; Liao, Chengzhu; Yeung, Kelvin Wai Kwok; Tjong, S.C.

doi:10.3144/expresspolymlett.2018.31

Cited by 44 publications

(30 citation statements)

References 77 publications

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“…As such, AgNPs find attractive applications in textiles, healthcare products, cosmetics, cancer therapies, wound dressings, catalysts, food packaging films, water treatments, electronic devices, corneal replacements, etc. (Figure 1) [14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29]. For example, clothing textiles that are in close contact with human skin create a warm and humid environment for microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Liao

Tjong

2019

IJMS

747

436

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Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.

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Section: Introductionmentioning

confidence: 99%

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Liao

Tjong

2019

IJMS

747

436

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“…According to the data of Table 2, silver is present in all the treated membranes; the silver content varies from 5.11 to 9.06 wt % depending on the solution used. According to published data [10,22,23], 100% inhibiting action of silver on microorganisms is achieved at its content of 0.63-4.8 wt %. The maximum silver content is observed in the case of the treatment of the initial membrane with a 1 M silver nitrate solution.…”

Section: Resultsmentioning

confidence: 99%

“…The designs of membrane elements can be in the form of flat films, corrugated elements, tubes, and cartridges. Films made of cellulose acetate, nylon 66, nylon 6, polyvinylidene fluoride, polysulfone, polypropylene, and polyether sulfone are used as membrane materials [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Properties of Microfiltration Membranes Modified by Silver Nitrate

Фазуллин

Маврин

2019

Membr. Membr. Technol.

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The modification of a nylon microfiltration membrane with silver compounds for the disinfection of drinking water under dynamic conditions has been carried out, and the antibacterial properties of the modified membranes have been studied. It has been revealed that the initial microfiltration membrane is not capable of complete removal of microorganisms from water. It has been determined that membrane modification with the silver compounds leads to the complete disinfection of the water. In this case, the modification does not lead to a significant decrease in the specific productivity of the membranes. Insoluble silver salts are distributed on the membrane surface in the form of particles from 0.1 to 5 μm. Depending on the type of the silver compound used for the treatment of membranes, the silver content ranges from 5.11 to 9.06 wt %. The most uniform distribution of silver over the entire membrane surface and the maximum content are achieved by treating the membrane with an AgNO 3 solution.

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“…Electrospinning is a simple and versatile tool to form microfibers and nanofibers (NFs) from different materials including polymers, metal oxides and their nanocomposites. This process has been used extensively for fabricating nanofibers derived from polymers and polymer nanocomposites [27,72,227,228]. In the process, a high electric field is applied to the polymer/solvent solution.…”

Section: Electrospinningmentioning

confidence: 99%

Visible-Light Active Titanium Dioxide Nanomaterials with Bactericidal Properties

2020

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This article provides an overview of current research into the development, synthesis, photocatalytic bacterial activity, biocompatibility and cytotoxic properties of various visible-light active titanium dioxide (TiO2) nanoparticles (NPs) and their nanocomposites. To achieve antibacterial inactivation under visible light, TiO2 NPs are doped with metal and non-metal elements, modified with carbonaceous nanomaterials, and coupled with other metal oxide semiconductors. Transition metals introduce a localized d-electron state just below the conduction band of TiO2 NPs, thereby narrowing the bandgap and causing a red shift of the optical absorption edge into the visible region. Silver nanoparticles of doped TiO2 NPs experience surface plasmon resonance under visible light excitation, leading to the injection of hot electrons into the conduction band of TiO2 NPs to generate reactive oxygen species (ROS) for bacterial killing. The modification of TiO2 NPs with carbon nanotubes and graphene sheets also achieve the efficient creation of ROS under visible light irradiation. Furthermore, titanium-based alloy implants in orthopedics with enhanced antibacterial activity and biocompatibility can be achieved by forming a surface layer of Ag-doped titania nanotubes. By incorporating TiO2 NPs and Cu-doped TiO2 NPs into chitosan or the textile matrix, the resulting polymer nanocomposites exhibit excellent antimicrobial properties that can have applications as fruit/food wrapping films, self-cleaning fabrics, medical scaffolds and wound dressings. Considering the possible use of visible-light active TiO2 nanomaterials for various applications, their toxicity impact on the environment and public health is also addressed.

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Novel electrospun polyvinylidene fluoride-graphene oxide-silver nanocomposite membranes with protein and bacterial antifouling characteristics

Cited by 44 publications

References 77 publications

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Antibacterial Properties of Microfiltration Membranes Modified by Silver Nitrate

Visible-Light Active Titanium Dioxide Nanomaterials with Bactericidal Properties

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