Chitosan-Copper (II) complex as antibacterial agent: synthesis, characterization and coordinating bond- activity correlation study

Mekahlia, Soumia; Bouzid, B.

doi:10.1016/j.phpro.2009.11.061

Cited by 126 publications

(64 citation statements)

References 21 publications

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“…The XRD analysis revealed peaks characteristic of semicrystalline chitosan (Fig. ), as described by Mekahlia and Bouzid . The main crystalline peaks visible in the diffractograms of samples Q1, Q2, and Q3 are located at 2 θ = 9.42°, 19.35°, and 26.45°.…”

Section: Resultsmentioning

confidence: 99%

Influence of the drying route on the depolymerization and properties of chitosan

et al. 2014

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In this work, a chitosan sample with a high degree of deacetylation (DD >95%) obtained from freshwater shrimp shells was subjected to drying processes in an electric oven and by supercritical CO2. The results indicated that drying chitosan particles with supercritical CO2 resulted in a very significant increase in specific surface area and pore volume, and also increased the material's crystallinity index. This drying route led to a more than 10‐fold reduction in viscosimetric molecular weight (from 35.3 to 3.0 kDa), indicating that the physical drying process caused the chitosan to depolymerize, which usually occurs by enzymatic and chemical methods, according to the literature. Low molecular weight chitosan is essential for some applications in the field of biomedicine (drug delivery for example); hence, drying via the CO2 route can be considered a promising technique for the production of high value‐added materials with applications in this area. POLYM. ENG. SCI., 55:1969–1976, 2015. © 2014 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Influence of the drying route on the depolymerization and properties of chitosan

et al. 2014

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“…The CuChNPs presented a nanometric particle size of around 131 nm with a hybrid structure composed of a copper core surrounded by a chitosan shell. FTIR analysis revealed that the intensities of the N-H amide/ amine bending and O-H/N-H stretching bands of chitosan structure 12) appear decreased in the CuChNP spectrum, which suggests covalent interactions between the metallic copper surface and the chitosan functional groups 14,15) . It has been also reported that copper oxide nanoparticles dispersed into a chitosan solution shift the FTIR peaks of the polymer 16) , adding further evidence about the formation of chemical interactions in the copper-chitosan interface and confirming the hybrid nature of the nanoparticle.…”

Section: Discussionmentioning

confidence: 99%

Synthesis of hybrid copper-chitosan nanoparticles with antibacterial activity against cariogenic <i>Streptococcus mutans </i>

Covarrubias

Trepiana

Corral

2018

Dental Materials Journal

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“…Recent investigations showed that low molecular weight chitosan exhibited strong bactericidal activities compared to chitosan with high molecular weight. Since chitosan degradation can be caused by the coordinating bond, we attempt to synthesize and characterize the chitosan-Cu (II) complex, and thereafter study the coordinating bond effect on its antibacterial activity against Salmonella enteritidis (14).…”

Section: Introductionmentioning

confidence: 99%

Chitosan-Copper Paint Types as Antifouling

HEUSER¹,

CÁRDENAS²

2014

J. Chil. Chem. Soc.

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A prototype of antifouling paints was prepared with a Qs-Cu (I)-Fe (II) complex as a possible replacement for traditional antifouling net paints, which contain a large concentration of copper, finding them in an order of 10-30 % depending on the company, and either in water or solvent based. A Qs-Cu complex was prepared, with a solution at 3% with acetic acid, and then Fe 2 O 3 was added to the solution. FT IR analysis was carried out, as well as analysis of the TGA at the Qs and the complex with Qs-Cu, and with the solution, three different paints were prepared. Those that varied volume of diethylene glycol added to them. The analysis of the paints was carried out, once the paint was pervaded in a network of polyamide, through SEM with EDX and TEM, which was purchased with the commercial paints, water based and solvent based. One of the objectives is to be able to compare the coverage of the network with the commercial paint, and that of the complex Qs-Cu. The results showed that the best paint obtained was paint #2, found to be similar to that pervaded with water based paint.

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Chitosan-Copper (II) complex as antibacterial agent: synthesis, characterization and coordinating bond- activity correlation study

Cited by 126 publications

References 21 publications

Influence of the drying route on the depolymerization and properties of chitosan

Influence of the drying route on the depolymerization and properties of chitosan

Synthesis of hybrid copper-chitosan nanoparticles with antibacterial activity against cariogenic <i>Streptococcus mutans </i>

Chitosan-Copper Paint Types as Antifouling

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