Antibacterial properties of chitosan chloride-graphene oxide composites modified quartz sand filter media in water treatment

Li, Xufei; Sun, Jianye; Che, Yangli; Lv, Yan; Liu, Fang

doi:10.1016/j.ijbiomac.2018.10.123

Cited by 49 publications

(24 citation statements)

References 53 publications

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“…Chitosan derivatives have become important tools in many different areas such as water purification [208,209,210,211], food and paper industries [212,213,214,215], and most importantly, medicine and pharmacy [127,135,216,217]. Allan et al were amongst the first to propose the antimicrobial activity of chitosan [218], and since then, the idea of developing chitosan derivatives has become more and more pronounced amongst scientists.…”

Section: Chitosan Antimicrobial Wound Dressingsmentioning

confidence: 99%

Chitosan as a Wound Dressing Starting Material: Antimicrobial Properties and Mode of Action

Matica

Aachmann

Tøndervik

et al. 2019

IJMS

508

275

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Fighting bacterial resistance is one of the concerns in modern days, as antibiotics remain the main resource of bacterial control. Data shows that for every antibiotic developed, there is a microorganism that becomes resistant to it. Natural polymers, as the source of antibacterial agents, offer a new way to fight bacterial infection. The advantage over conventional synthetic antibiotics is that natural antimicrobial agents are biocompatible, non-toxic, and inexpensive. Chitosan is one of the natural polymers that represent a very promising source for the development of antimicrobial agents. In addition, chitosan is biodegradable, non-toxic, and most importantly, promotes wound healing, features that makes it suitable as a starting material for wound dressings. This paper reviews the antimicrobial properties of chitosan and describes the mechanisms of action toward microbial cells as well as the interactions with mammalian cells in terms of wound healing process. Finally, the applications of chitosan as a wound-dressing material are discussed along with the current status of chitosan-based wound dressings existing on the market.

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Section: Chitosan Antimicrobial Wound Dressingsmentioning

confidence: 99%

Chitosan as a Wound Dressing Starting Material: Antimicrobial Properties and Mode of Action

Matica

Aachmann

Tøndervik

et al. 2019

IJMS

508

275

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“…Moreover, no significant cytotoxicity was observed toward human cell lines. Li et al [230] fabricated chitosan chloride-GO (CSCl@GO) composites modified quartz sand (CSCl@GO/QS) filter media in order to control the bacterial pollution form of the water treatment. CSCl@GO composites were prepared using a solution blending method and investigated for the antibacterial mechanism using E. coli and S. aureus , which were completely inactivated after CSCl@GO (100 mg/L) composites treatment for 15 min.…”

Section: Multicomponent Composite Functionalizationmentioning

confidence: 99%

Antibacterial Properties of Graphene-Based Nanomaterials

et al. 2019

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Bacteria mediated infections may cause various acute or chronic illnesses and antibiotic resistance in pathogenic bacteria has become a serious health problem around the world due to their excessive use or misuse. Replacement of existing antibacterial agents with a novel and efficient alternative is the immediate demand to alleviate this problem. Graphene-based materials have been exquisitely studied because of their remarkable bactericidal activity on a wide range of bacteria. Graphene-based materials provide advantages of easy preparation, renewable, unique catalytic properties, and exceptional physical properties such as a large specific surface area and mechanical strength. However, several queries related to the mechanism of action, significance of size and composition toward bacterial activity, toxicity criteria, and other issues are needed to be addressed. This review summarizes the recent efforts that have been made so far toward the development of graphene-based antibacterial materials to face current challenges to combat against the bacterial targets. This review describes the inherent antibacterial activity of graphene-family and recent advances that have been made on graphene-based antibacterial materials covering the functionalization with silver nanoparticles, other metal ions/oxides nanoparticles, polymers, antibiotics, and enzymes along with their multicomponent functionalization. Furthermore, the review describes the biosafety of the graphene-based antibacterial materials. It is hoped that this review will provide valuable current insight and excite new ideas for the further development of safe and efficient graphene-based antibacterial materials.

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“…Moreover, some charged polysaccharides such as chitosan, hyaluronic acid, and chondroitin sulfate could have interactions with oppositely charged drug molecules, which could also help to control drug loading and releasing [5,18]. Additionally, graphene family materials have a conjugated structure, which can absorb drug molecule through π-π interactions [18,[23][24][25][26][27][28]. Moreover, the oxygen permeability of CS film had been confirmed by previous research [29].…”

Section: Introductionmentioning

confidence: 62%

“…Another way to design a practical contact lens was still needed. Chitosan, a kind of polysaccharide, had been made all kinds of carriers and scaffolds on account of good biocompatibility and excellent antibacterial property [3,[15][16][17][18][19]. But chitosan film was too fragile to processing.…”

Section: Introductionmentioning

confidence: 99%

“…Previously, cyclodextrin domain possessing hydrophobic cavity, which could accommodate drug molecules, was incorporated into hydrogel contact lenses by copolymerization as well as surface modification for improving drug loading and releasing property [3,6,7]. Moreover, some charged polysaccharides such as chitosan, hyaluronic acid, and chondroitin sulfate could have interactions with oppositely charged drug molecules, which could also help to control drug loading and releasing [5,18]. Additionally, graphene family materials have a conjugated structure, which can absorb drug molecule through π-π interactions [18,[23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

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A Facile Route to Fabricate CS/GO Composite Film for the Application of Therapeutic Contact Lenses

Chen

Wang

Kong

et al. 2020

Advances in Materials Science and Engineering

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Traditional contact lenses bring convenience for ophthalmic drug delivery. However, either as contact lenses or as drug carriers, traditional materials have still some drawbacks in the field. Therefore, a transparent film was designed and investigated for the application of therapeutic contact lenses. Chitosan (CS)/graphene oxide (GO) composite film and CS film were fabricated with acceptable transparent and tensile properties by simple casting flow method. Although swelling ratio of CS/GO composite film was higher than that of CS film with significant difference, both formed films had suitable swelling ratio for contact lens application. Both CS/GO composite film and CS film exhibited typical CS infrared characteristic peaks. CS/GO composite film had significant greater breaking strength than CS film, but its elongation at break was a little lower than CS film. Either CS/GO composite film or CS film exhibited good hydrophilic property with a contact angle of around 20 degree. Ofloxacin as a model drug was loaded into films by adsorption diffusion method. Loaded drug amount in CS/GO composite film was a little larger than that in CS film, but without significant difference. The drug release behaviors from CS/GO composite film or CS film were investigated and revealed that the loaded drug could be controlled to release in the first hour. Two kinds of cells were used to evaluate the biocompatibility of films by in vitro method. It was found that both CS/GO composite film and CS film could support human umbilical vein endothelial cell (HUVEC) growth. But for human epidermal fibroblasts (HSF) cells, CS/GO composite film could promote HSF cells growth and proliferation much better than CS film.

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Antibacterial properties of chitosan chloride-graphene oxide composites modified quartz sand filter media in water treatment

Cited by 49 publications

References 53 publications

Chitosan as a Wound Dressing Starting Material: Antimicrobial Properties and Mode of Action

Chitosan as a Wound Dressing Starting Material: Antimicrobial Properties and Mode of Action

Antibacterial Properties of Graphene-Based Nanomaterials

A Facile Route to Fabricate CS/GO Composite Film for the Application of Therapeutic Contact Lenses

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