Preparation and antibacterial activity of electrospun chitosan/poly(ethylene oxide) membranes containing silver nanoparticles

An, Jing; Zhang, Hong; Zhang, Jitu; Zhao, Yunhui; Yuan, Xiaoyan

doi:10.1007/s00396-009-2108-y

Cited by 157 publications

(99 citation statements)

References 38 publications

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“…It has been reported that silver ions have long been known to have strong inhibitory and bactericidal effects, and they also offer a broad antibacterial spectrum. 32 The effects of silver ions on bacteria may be complicated, and the mechanism for this effect is still not fully understood. In fact, many studies have reported that Ag + shows powerful antibacterial activity and exerts similar toxicity against bacteria under both aerobic and anaerobic conditions.…”

Section: Dctmentioning

confidence: 99%

Physicochemical and biological properties of a novel injectable polyurethane system for root canal filling

Wang¹,

Zuo²,

Zhao³

et al. 2015

IJN

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A root canal sealer with antibacterial activity can be efficacious in preventing reinfection that results from residual microorganisms and/or the leakage of microorganisms. In the present study, a series of injectable, self-curing polyurethane (PU)-based antibacterial sealers with different concentrations of silver phosphate (Ag 3 PO 4 ) were fabricated. Subsequently, their physicochemical properties, antibacterial abilities, and preliminary cytocompatibilities were evaluated. The results indicated that the fabricated PU-based sealers can achieve a high conversion rate in a short amount of time. More than 95% of the isocyanate group of PU sealers with 3 wt% (PU3) and 5 wt% (PU5) concentrations of Ag 3 PO 4 were included in the curing reaction after 7 hours. With the exception of those for film thickness for PU5, the results of setting time, film thickness, and solubility were able to meet the requirements of the International Organization for Standardization. The antibacterial tests showed that PU3 and PU5 exhibit stronger antimicrobial effects than that achieved with 1 wt% Ag 3 PO 4 (PU1) and AH Plus (positive control) against Streptococcus mutans . The cytocompatibility evaluation revealed that the PU1 and PU3 sealers possess good cytocompatibility and low cytotoxicity. These results demonstrate that the PU3 sealer offers good physicochemical and antimicrobial properties along with cytocompatibility, which may hold great application potential in the field of root canal fillings.

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Section: Dctmentioning

confidence: 99%

Physicochemical and biological properties of a novel injectable polyurethane system for root canal filling

Wang¹,

Zuo²,

Zhao³

et al. 2015

IJN

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“…It was found that addition of poly (acrylic acid) (PAA) to the mineral solution and use of matrix with Ncarboxyethyl chitosan (N-CECS) promoted mineral growth and distribution of HAp. A fairly uniform silver nanoparticles (AgNPs)/chitosan/PEO ultrafine fibers were prepared by electrospinning of chitosan/PEO solutions containing Ag/chitosan colloids by means of in situ chemical reduction of Ag ions [91]. The AgNPs were evenly distributed in chitosan/PEO ultrafine fibers with the size less than 5 nm.…”

Section: Electrospinning Of Blends Of Chitosan and Inorganic Nanopartmentioning

confidence: 99%

“…It could significantly increase the rate of wound healing. To develop a better wound dressing, fairly uniform AgNPs/chitosan/PEO ultrafine fibers were successfully prepared [91]. Evaluation of antimicrobial activities of the electrospun AgNPs/ chitosan /PEO fibrous membrane against Escherichia coli showed that the AgNPs in the ultrafine fibers significantly enhanced the inactivation of bacteria.…”

Section: Wound Dressingmentioning

confidence: 99%

Preparations, properties and applications of chitosan based nanofibers fabricated by electrospinning

Sun¹,

Li²

2011

Express Polym. Lett.

209

101

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Chitosan is soluble in most acids. The protonation of the amino groups on the chitosan backbone inhibits the electrospinnability of pure chitosan. Recently, electrospinning of nanofibers based on chitosan has been widely researched and numerous nanofibers containing chitosan have been prepared by decreasing the number of the free amino groups of chitosan as the nanofibiers have enormous possibilities for better utilization in various areas. This article reviews the preparations and properties of the nanofibers which were electrospun from pure chitosan, blends of chitosan and synthetic polymers, blends of chitosan and protein, chitosan derivatives, as well as blends of chitosan and inorganic nanoparticles, respectively. The applications of the nanofibers containing chitosan such as enzyme immobilization, filtration, wound dressing, tissue engineering, drug delivery and catalysis are also summarized in detail

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“…This resulted in a lower killing efficiency of the annealed samples due to the surface area of the AgNPs coming into contact with the bacteria. An et al [240] prepared chitosan (CS)/polyethylene oxide (PEO) containing AgNPs nanofibres by means of in situ chemical reduction of Ag ions. The average diameter of the nanofibres decreased with an increase in AgNPs because of the increased charge density in the spinning solution, imparting stretching of the electrified jet under the electrical field.…”

Section: Silver Nanoparticlesmentioning

confidence: 99%

“…Most of the diseases in developing countries are caused by pathogenic organisms. There has been an escalation of research in incorporating silver nanoparticles in the electro-spun membrane to impart biocidal activity [156,239,240,243,244]. Even though there is still much controversy over the biocidal activity of the silver nanoparticles, electrospun nanofibres displayed enhanced antibacterial efficiency when the membranes contained silver.…”

Section: Biocidal Membranementioning

confidence: 99%

A review on electrospun bio-based polymers for water treatment

Mokhena¹,

Jacobs²,

Luyt³

2015

Express Polym. Lett.

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Abstract. Over the past decades, electrospinning of biopolymers down to nanoscale garnered much interest to address most of the millennia issues related to water treatment. The fabrication of these nanostructured membranes added a new dimension to the current nanotechnologies where a wide range of materials can be processed to their nanosize. Electrospinning is a simple and versatile technique to fabricate unique nanostructured membranes with fascinating properties for a wide spectrum of applications such as filtration and others. These nanostructured membranes, fabricated by electrospinning, were found to be of a paramount importance because of their advanced inherited properties such as large surface-to-volume ratio, as well as tuneable porosity, stability, and high permeability. The extensive research conducted on these materials extended the success of electrospinning not only to bio-based polymer nanofibres, but to their hybrids and their derivatives. The technique also created avenues for advanced and massive production of nanofibres. This paper reviews the recent developments in the electrospinning technique. Electrospinning of biopolymers, their blends and functionalization using metals/metal oxides, and the potential applications of electrospun nanofibrous membranes in water filtration are discussed.

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Preparation and antibacterial activity of electrospun chitosan/poly(ethylene oxide) membranes containing silver nanoparticles

Cited by 157 publications

References 38 publications

Physicochemical and biological properties of a novel injectable polyurethane system for root canal filling

Physicochemical and biological properties of a novel injectable polyurethane system for root canal filling

Preparations, properties and applications of chitosan based nanofibers fabricated by electrospinning

A review on electrospun bio-based polymers for water treatment

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