Novel antimicrobial chitosan–cellulose composite films bioconjugated with silver nanoparticles

Lin, Shan; Chen, Lihui; Huang, Liulian; Cao, Shilin; Luo, Xiaolin; Li, Kai

doi:10.1016/j.indcrop.2015.03.040

Cited by 113 publications

(51 citation statements)

References 47 publications

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“…Accordance with the data, it is obvious that the photocured materials containing AgNPs have bacteria resistance, especially against E. coli and S. aureus. While antibacterial activity results were compared with other literatures, it was observed that the similar results were obtained effectively 3,6,15,16,21 .…”

Section: Antibacterial Propertiessupporting

confidence: 60%

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Fabrication and Characterization of Antibacterial Polyurethane Acrylate-based Materials

Zeytuncu

Morcali

2015

Mat. Res.

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Section: Antibacterial Propertiessupporting

confidence: 60%

“…Wet chemistry reduction method of Ag + ion is rapidly and effectively using reducing agent such as Sodium borohydride, Citrate, cellulose, D-glucose etc 3,5,21 . However, one of the disadvantages of these methods is that they are not reduced silver from ions to metallic form at all pH level.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Antibacterial Polyurethane Acrylate-based Materials

Zeytuncu

Morcali

2015

Mat. Res.

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“…La plata es uno de los aditivos con características antimicrobianas mayoritariamente utilizado en diversos materiales poliméricos como el agar (Ghosh et al, 2010;Rhim et al, 2013), alcohol de polivinilo (Bryaskova et al, 2010;Sedlarik et al, 2010), gelatina (Kanmani y Rhim, 2014) y mezclas de quitosan-celulosa (Lin et al, 2015), almidón-arcilla (Abreu et al, 2015) o quitosan-glutaraldehido (Vimala et al, 2011) para aplicaciones de empacado de alimentos (Martínez-Abad et al, 2012). Sin embargo, no hay casi estudios concernientes al desarrollo de BP a base de GBA cargadas de AgNPs y su comportamiento físico-mecánico.…”

Section: Introductionunclassified

Biopelículas de Gelana Cargadas con Nanopartículas de Plata: Propiedades Físico Mecánicas, Antimicrobianas y de Barrera

2017

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ResumenSe elaboraron biopelículas a base de gelana de bajo acilo cargadas con nanopartículas de plata (AgNPs) evaluando sus propiedades físico-mecánicas, antimicrobianas y de barrera, después de un almacenamiento de 3 semanas. La actividad antimicrobiana fue evaluada frente a bacterias de origen alimentario (Escherichia coli y Staphylococcus aureus) y dos hongos (Aspergillus sp y Penicillium sp). Los resultados permitieron determinar que el tiempo de almacenamiento influye en todas las propiedades evaluadas. Al incrementar el tiempo de almacenamiento se apreció una disminución en la resistencia a la tensión y en la transparencia. Además se presentó un incremento en el poder antimicrobiano y la permeabilidad al vapor de agua. Este comportamiento probablemente obedece a la lixiviación de iones plata, lo cual disminuye el número de enlaces presentes en la matriz polimérica. Tales resultados son prometedores y sugieren la posibilidad de utilizar biopelículas a base de gelana de bajo acilo como sistema de vehiculización de AgNPs para su liberación gradual manteniendo un efecto antimicrobiano sostenido. Palabras clave: biopelículas; goma gelana; nanopartículas de plata; permeabilidad; resistencia a la tensión Biofilms of Gellan Loaded with Silver Nanoparticles: Physico Mechanical, Antimicrobials and Barrier Properties AbstractBiofilms based on low acyl gellan loaded with silver nanoparticles (AgNPs) were tested, evaluating their physical-mechanical, antimicrobial and barrier properties after 3 weeks of storage. The antimicrobial activity was evaluated against food-borne bacteria (Escherichia coli and Staphylococcus aureus) and two fungi (Aspergillus sp and Penicillium sp). The results showed that the storage time influence all the evaluated properties. Increasing the storage time decreases the tensile strength and transparency values. Also, the antimicrobial power and the water vapor permeability increased. This behavior is probably due to the leaching of silver ions, which decreases the number of bonds present in the polymer matrix. Such results are promising and suggest the possibility of using biofilms based on low acyl gellan as a system for the vehiculation of AgNPs for their gradual release while maintaining a sustained antimicrobial effect.

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“…The peaks in the finger print region at 1160 and 1070 cm −1 (bending and asymmetrical stretching vibration of C-O-C in the glucose) are associated with the saccharide structure. It is notable that the spectrum for the CCNC prepared in APS medium was similar to that of MCC except for a new peak shown by the arrow at 1732 cm −1 (C=O carbonyl stretching), which validated the obtaining of CCNC [18,19]. As previously reported [19,20], the spectrum of CSos is similar to that of cellulose as their chemical structures are similar apart from the bonds at 1557 cm −1 (-NH 2 bending stretching) and 1732 cm −1 (C=O carbonyl stretching).…”

Section: Resultsmentioning

confidence: 71%

Enhanced Antibacterial Performance and Cytocompatibility of Silver Nanoparticles Stabilized by Cellulose Nanocrystal Grafted with Chito-Oligosaccharides

Wang

Yue

et al. 2018

Materials

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The agglomeration of silver nanoparticles (AgNPs) results in poor antibacterial performance, and the accumulation of silver in the human body threatens human health. Preparing a matrix is a technique worth considering as it not only prevents the aggregation of AgNPs but also reduces deposition of AgNPs in the human body. In this paper, carboxy-cellulose nanocrystals (CCNC) were prepared by a simple one-step acid hydrolysis method. Chito-oligosaccharides (CSos) were grafted onto the surface of CCNC to form CSos-CCNC composite nanoparticles. CCNC and CSos-CCNC were used as stabilizers for deposing AgNPs and two types of complexes—AgNPs-CCNC and AgNPs-CSos-CCNC—were obtained, respectively. The influence of the two stabilizer matrices—CCNC and CSos-CCNC—on the morphology, thermal behavior, crystal structure, antibacterial activity, and cell compatibility of AgNPs-CCNC and AgNPs-CSos-CCNC were examined. The results showed that the AgNPs deposited on the CSos-CCNC surface had a smaller average diameter and a narrower particle size distribution compared with the ones deposited on CCNC. The thermal stability of AgNPs-CSos-CCNC was better than that of AgNPs-CCNC. AgNPs did not affect the crystalline structure of CCNC and CSos-CCNC. The antibacterial activity of AgNPs-CSos-CCNC was better than that of AgNPs-CCNC based on antibacterial studies using Escherichia coli, Staphylococcus aureus, and Klebsiella pneumoniae. The cytotoxicity of AgNPs-CSos-CCNC was remarkably lower than that of AgNPs-CCNC.

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Novel antimicrobial chitosan–cellulose composite films bioconjugated with silver nanoparticles

Cited by 113 publications

References 47 publications

Fabrication and Characterization of Antibacterial Polyurethane Acrylate-based Materials

Fabrication and Characterization of Antibacterial Polyurethane Acrylate-based Materials

Biopelículas de Gelana Cargadas con Nanopartículas de Plata: Propiedades Físico Mecánicas, Antimicrobianas y de Barrera

Enhanced Antibacterial Performance and Cytocompatibility of Silver Nanoparticles Stabilized by Cellulose Nanocrystal Grafted with Chito-Oligosaccharides

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