Green synthesis of silver and copper nanoparticles using ascorbic acid and chitosan for antimicrobial applications

Zain, Norashikin Mat; Stapley, A.G.F.; Shama, Gilbert

doi:10.1016/j.carbpol.2014.05.081

Cited by 317 publications

(166 citation statements)

References 36 publications

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“…It usually involves the reduction of metal salts with a reducing agent in any type of solvent and a capping agent to keep growth of a nanoparticle at specific and required size. One of the most challenging aspects of the synthesis of copper nanoparticles is their high tendency to oxidation (Zain et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Copper Nanoparticles as Potential Antimicrobial Agent in Disinfecting Root Canals: A Systematic Review

Sánchez‐Sanhueza

Fuentes‐Rodríguez

Bello-Toledo

2016

Int. J. Odontostomat.

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ABSTRACT:Copper was registered as the first solid antimicrobial material. Its availability makes it an important option as an antibacterial agent. At nanoparticle size it does not exceed 100 nm, allowing close interaction with microbial membranes, enhancing its effect even more. Copper generates toxic hydroxyl radicals that damage cell membranes of Gram-negative and Gram-positive bacteria, among the latter, Enterococcus faecalis, which are present in infected radicular canals. Synthesis of metal nanoparticles with antimicrobial properties has become a viable alternative and has promising applications in the fight against pathogenic microorganisms. Furthermore, the use of some polymers to stabilize nanoparticles increases their release time and may as well decrease the risk of bacterial recolonization and biofilm formation within the ducts, enhancing the antimicrobial properties of these compounds.The aim of this article is to conduct a systematic review of the literature on antimicrobial copper nanoparticles, their current applications and their potential use in the area of oral health, specifically in the field of endodontics.

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Section: Discussionmentioning

confidence: 99%

Copper Nanoparticles as Potential Antimicrobial Agent in Disinfecting Root Canals: A Systematic Review

Sánchez‐Sanhueza

Fuentes‐Rodríguez

Bello-Toledo

2016

Int. J. Odontostomat.

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“…It was also found that when Cu and Ag nanoparticles were fused together to create bi-metallic nanoparticles, their antibacterial effects increased and that nanoparticle size played a key role in the strength of the bactericidal effect [79].…”

Section: Applications Of Metallic Nanoparticlesmentioning

confidence: 99%

“…Ag nanoparticles have also sparked interest in other biomedical uses as well due to their high versatility in different areas of research. Their powerful antibacterial effects have been studied extensively and offer promising results for future antimicrobials [79]. They have the ability to create reactive oxygen species which cause irreversible damage to bacteria and also have a strong affinity in binding to DNA or RNA which interferes with the microbial replication process [78].…”

Section: Applications Of Metallic Nanoparticlesmentioning

confidence: 99%

Biological Synthesis of Metallic Nanoparticles by Bacteria, Fungi and Plants

Pantidos¹

2014

J Nanomed Nanotechnol

484

221

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Over the past few decades interest in metallic nanoparticles and their synthesis has greatly increased. This has resulted in the development of numerous ways of producing metallic nanoparticles using chemical and physical methods. However, drawbacks such as the involvement of toxic chemicals and the high-energy requirements of production make it difficult for them to be widely implemented. An alternative way of synthesising metallic nanoparticles is by using living organisms such as bacteria, fungi and plants. This "green" method of biological nanoparticle production is a promising approach that allows synthesis in aqueous conditions, with low energy requirements and low-costs. This review gives an overview of some of these environmentally friendly methods of biological metallic nanoparticle synthesis. It also highlights the potential importance of these methods in assessing nanoparticle risk to both health and the environment.techniques, which are generally low-cost and high-volume. However, the need for toxic solvents and the contamination from chemicals used in nanoparticle production limit their potential use in biomedical applications [15]. Therefore a "green", non-toxic way of synthesising metallic nanoparticles is needed in order to allow them to be used in a wider range of industries. This could potentially be achieved by using biological methods.Many bacteria, fungi and plants have shown the ability to synthesise metallic nanoparticles and all have their own advantages and disadvantages (Table 1) [16][17][18]. Intracellular or extracellular synthesis, growth temperature, synthesis time, ease of extraction and percentage synthesised versus percentage removed from sample ratio, all play an important role in biological nanoparticle production. Finding the right biological method can depend upon a number of variables. Most importantly, the type of metal nanoparticle under investigation is of vital consideration, as in general organisms have developed resistance against a small number of metals, potentially limiting the choice of organism. However synthetic biology; a nascent field of science, is starting to address these issues in order to create more generalised chassis, able to synthesise more than one type of metallic nanoparticle using the same organism [19]."Natural" biogenic metallic nanoparticle synthesis can be split into two categories. The first is bioreduction, in which metal ions are chemically reduced into more stable forms biologically. Many organisms have the ability to utilise dissimilatory metal reduction, in which the reduction of a metal ion is coupled with the oxidation of an enzyme [20]. This results in stable and inert metallic nanoparticles that can then be safely removed from a contaminated sample. The second category is biosorption. This involves the binding of metal ions from Journal of Nanomedicine & Nanotechnology J o u rna l of N a n o m ed icine & N a n o te chnolo g y

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“…glutathione), and sugars (e.g. glucose, fructose) are such materials, which provide suitable reducing and surface agents for the nanoparticle synthesis/stabilization [14][15][16][17][22][23][24][25][26][27][28][29][30]. Plant extracts are regarded as one of the most promising natural reducing agents, such as metabolities (e.g.…”

Section: Natural and Renewable Sources Of Reducing Agents For The Synmentioning

confidence: 99%

Green Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications

Padil

Černík

2016

Ecological Chemistry and Engineering S

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Abstract:The recent advances and potential applications of nanoparticles and nanofibres for energy, water, food, biotechnology, the environment, and medicine have immensely conversed. The present review describes a 'green' method for the synthesis and stabilization of nanoparticles and 'green electrospinning' both using tree gums (arabic, tragacanth, karaya and kondagogu). Furthermore, this review focuses on the impending applications of both gum stabilized nanoparticles and functionalized membranes in remediation of toxic metals, radioactive effluents, and the adsorptive removal of nanoparticulates from aqueous environments as well as from industrial effluents. Besides, the antibacterial properties of gum derivatives, gum stabilized nanoparticles, and functionalized electrospun nanofibrous membranes will also be highlighted. The functionalities of nanofibrous membranes that can be enhanced by various plasma treatments (oxygen and methane, respectively) will also be emphasized.

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Green synthesis of silver and copper nanoparticles using ascorbic acid and chitosan for antimicrobial applications

Cited by 317 publications

References 36 publications

Copper Nanoparticles as Potential Antimicrobial Agent in Disinfecting Root Canals: A Systematic Review

Copper Nanoparticles as Potential Antimicrobial Agent in Disinfecting Root Canals: A Systematic Review

Biological Synthesis of Metallic Nanoparticles by Bacteria, Fungi and Plants

Green Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications

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