Preparation and characterization of silver‐chitosan nanocomposite particles with antimicrobial activity

An, Jing; Luo, Qingzhi; Yuan, Xiaoyan; Wang, Desong; Li, Xueyan

doi:10.1002/app.33532

Cited by 82 publications

(46 citation statements)

References 40 publications

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“…UV/VIS spectrophotometry represents a simple and valuable method to study interactions and to characterize antimicrobial properties of various compounds [54,55]. This method confirmed results, obtained by the use of electrochemical methods.…”

Section: Resultssupporting

confidence: 57%

Complexes of Silver(I) Ions and Silver Phosphate Nanoparticles with Hyaluronic Acid and/or Chitosan as Promising Antimicrobial Agents for Vascular Grafts

Chudobová

Nejdl

Gumulec

et al. 2013

IJMS

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Polymers are currently widely used to replace a variety of natural materials with respect to their favourable physical and chemical properties, and due to their economic advantage. One of the most important branches of application of polymers is the production of different products for medical use. In this case, it is necessary to face a significant disadvantage of polymer products due to possible and very common colonization of the surface by various microorganisms that can pose a potential danger to the patient. One of the possible solutions is to prepare polymer with antibacterial/antimicrobial properties that is resistant to bacterial colonization. The aim of this study was to contribute to the development of antimicrobial polymeric material ideal for covering vascular implants with subsequent use in transplant surgery. Therefore, the complexes of polymeric substances (hyaluronic acid and chitosan) with silver nitrate or silver phosphate nanoparticles were created, and their effects on gram-positive bacterial culture of Staphylococcus aureus were monitored. Stages of formation of complexes of silver nitrate and silver phosphate nanoparticles with polymeric compounds were characterized using electrochemical and spectrophotometric methods. Furthermore, the antimicrobial activity of complexes was determined using the methods of determination of growth curves and zones of inhibition. The results of this study revealed that the complex of chitosan, with silver phosphate nanoparticles, was the most suitable in order to have an antibacterial effect on bacterial culture of Staphylococcus aureus. Formation of this complex was under way at low concentrations of chitosan. The results of electrochemical determination corresponded with the results of spectrophotometric methods and verified good interaction and formation of the complex. The complex has an outstanding antibacterial effect and this effect was of several orders higher compared to other investigated complexes.

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Section: Resultssupporting

confidence: 57%

Complexes of Silver(I) Ions and Silver Phosphate Nanoparticles with Hyaluronic Acid and/or Chitosan as Promising Antimicrobial Agents for Vascular Grafts

Chudobová

Nejdl

Gumulec

et al. 2013

IJMS

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“…Recent studies reported about direct dispersion of AgNPs into chitosan matrix for antibacterial applications [9]. However, common methods involve the chemical reduction of silver salts by different reducing agents such as NaBH 4 , sodium citrate, or ascorbic acid [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Chitosan/silver nanocomposites: Synergistic antibacterial action of silver nanoparticles and silver ions

Kumar-Krishnan

Prokhorov

Hernández‐Iturriaga

et al. 2015

European Polymer Journal

247

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“…The XRD patterns of GO, and B-Ag, are shown in (220), and (311) lattice reflections of the face centered cubic (fcc) structure of silver [42,43]. Τhe size of the silver nanoparticles, estimated from the Scherrer equation [35], found to be approximately 6-7 nm.…”

Section: Resultsmentioning

confidence: 99%

Application of promising carbonaceous materials in electrochemical DNA sensing

Karastogianni¹,

Deliyanni²,

Girousi³

2017

J Appl Bioanal

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The data reported in literature demonstrate that carbon paste electrodes (CPEs) are very suitable for a variety of applications and many works have thus been devoted in the development of new sensitive and selective electrode surfaces based on carbon paste as the electrode material of choice. The application of novel and promising carbonaceous materials, as electrode surfaces, is an issue of great concern. In this work the experimental results of the characterization and comparison of electrode surfaces based on alternatively prepared carbonaceous materials (activated carbon (B), HNO 3 oxidized activated carbon (B5), Ag impregnated activated carbon (B-Ag) and graphite oxide (GO), are being demonstrated. Scaning Electron Microscopy SEM), surface acidity, FTIR spectroscopy, XRD diffractometry and electrochemical techniques (cyclic voltammetry, differential pulse voltammetry) were applied in the characterization of novel carbonaceous materials aimed at electrochemical DNA sensing.

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Preparation and characterization of silver‐chitosan nanocomposite particles with antimicrobial activity

Cited by 82 publications

References 40 publications

Complexes of Silver(I) Ions and Silver Phosphate Nanoparticles with Hyaluronic Acid and/or Chitosan as Promising Antimicrobial Agents for Vascular Grafts

Complexes of Silver(I) Ions and Silver Phosphate Nanoparticles with Hyaluronic Acid and/or Chitosan as Promising Antimicrobial Agents for Vascular Grafts

Chitosan/silver nanocomposites: Synergistic antibacterial action of silver nanoparticles and silver ions

Application of promising carbonaceous materials in electrochemical DNA sensing

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