Preparation of antimicrobial cellulose fibers by grafting β-cyclodextrin and inclusion with antibiotics

Dong, Chao; Qian, Liying; Zhao, Guanglei; He, Beihai; Xiao, Huining

doi:10.1016/j.matlet.2014.03.091

Cited by 33 publications

(11 citation statements)

References 16 publications

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“…In addition to this, multiple emerging contaminants such as dyes, aromatics, or hydrocarbons are complex molecules for which their adsorption on the sorbent could be benefited by the addition of hydrophobic active points on the cellulose nanofibril surface, with straightforward routs such as grafting of β-cyclodextrin. β-cyclodextrin has been shown to improve the adsorption of pollutants when was grafted onto magnetic graphene sheets and porous silica [31], chitosan/graphene sheets [32], carbonaceous nanofibrils [33], biomass/polysulfone/polyethylenimine [34], and cellulosebased materials [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of aerogels from cellulose nanofibril grafted with β-cyclodextrin for capture of water pollutants

et al. 2021

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Interactions at the molecular and surface chemistry are some of the key factors that determine the adsorption capacity of pollutants and emerging contaminants in porous materials. As filtration-based purification of water sources expands, the generation of green materials, such as biopolymers, is the priority. However, to increase the removal capacity, modification of natural polymers appears necessary. Nanomaterials, especially bio-based materials like cellulose nanofibrils, inherently have large surface areas as a consequence of their high aspect ratios. Their capacity to modulate the interactions with contaminants present in water can be modulated by incorporating selective active points, such as hydrophobic cavities, that can further improve their overall adsorption capability. A bio-based material that can fulfil this requirement is β-cyclodextrin, a cyclic oligosaccharide with seven glucose units, which provides an easy grafting strategy onto cellulose due to structural affinity. Another advantage of using cellulose nanofibril is their film formability, aerogels, and hydrogels without the need of harsh chemicals or processes. In this work, an oligosaccharide with a hydrophobic centre -β-cyclodextrin -was immobilized onto bleached softwood cellulose nanofibrils, and then used to generate high surface area aerogels with a density of 175 kg/m 3 and porosities above 88%. Charge density titration, Fourier transform infrared with attenuated total reflectance (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and atomic force microscopy (AFM) characterization techniques were used to assess the successful modification of the fibrils. Inductive coupled plasma mass spectroscopy (ICP-MS) was used to determine the lack of trace chlorine in the material from the grafting process while scanning electron microscopy (SEM) and dynamic vapor sorption (DVS) were used to determine porosity and surface area of the aerogels. The adsorption capacity was tested with two molecules of different natures: a cyanotoxin (microcystin-LR) and a dye (methylene blue), using high-performance liquid chromatography with a UV detector (HPLC-UV) and UV-vis spectroscopy, respectively. The adsorption in equilibrium for CNF-CD aerogels was calculated to be 0.078 mg/g of microcystin-LR and 3.46 mg/g of methylene blue, enlightening its possible use to improve water quality.

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Section: Introductionmentioning

confidence: 99%

Fabrication of aerogels from cellulose nanofibril grafted with β-cyclodextrin for capture of water pollutants

et al. 2021

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“…This compound, a cyclic oligosaccharide, readily forms host-guest complexes with various small molecules, including antibiotics and antimicrobial agents and grafting reactions between cellulose and β-cyclodextrin have been successfully performed. The inclusion of ciprofloxacin hydrochloride as a model antibiotic in cellulose fibers resulted in strong antimicrobial activity against E. coli and S. aureus (Dong et al, 2014). A novel approach to introduce different kinds of active substances, such as antimicrobial agents, disinfectants, or vitamins, was proposed by Rosenau et al (2005).…”

Section: Alternative Surface Modifications For Introducing Antimicrobmentioning

confidence: 99%

Bacterial cellulose as a material for wound treatment: Properties and modifications. A review

Sulaeva

Henniges

Rosenau

et al. 2015

Biotechnology Advances

364

275

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“…The incorporation of the ciprofloxacin hydrochloride antibiotic has also been attempted on a similar cellulose-based fibrous structure. β-cyclodextrin were covalently bonded to the cellulose fibers via citric acid, which prolonged the antibiotic release process and improved its antibacterial activity, particularly against Escherichia coli bacteria [127]. Research on the use of biocomposites as platforms for antibiotic delivery is fairly recent.…”

Section: Antibioticsmentioning

confidence: 99%

Biofunctionalization of Natural Fiber-Reinforced Biocomposites for Biomedical Applications

et al. 2020

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In the last ten years, environmental consciousness has increased worldwide, leading to the development of eco-friendly materials to replace synthetic ones. Natural fibers are extracted from renewable resources at low cost. Their combination with synthetic polymers as reinforcement materials has been an important step forward in that direction. The sustainability and excellent physical and biological (e.g., biocompatibility, antimicrobial activity) properties of these biocomposites have extended their application to the biomedical field. This paper offers a detailed overview of the extraction and separation processes applied to natural fibers and their posterior chemical and physical modifications for biocomposite fabrication. Because of the requirements for biomedical device production, specialized biomolecules are currently being incorporated onto these biocomposites. From antibiotics to peptides and plant extracts, to name a few, this review explores their impact on the final biocomposite product, in light of their individual or combined effect, and analyzes the most recurrent strategies for biomolecule immobilization.

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Preparation of antimicrobial cellulose fibers by grafting β-cyclodextrin and inclusion with antibiotics

Cited by 33 publications

References 16 publications

Fabrication of aerogels from cellulose nanofibril grafted with β-cyclodextrin for capture of water pollutants

Fabrication of aerogels from cellulose nanofibril grafted with β-cyclodextrin for capture of water pollutants

Bacterial cellulose as a material for wound treatment: Properties and modifications. A review

Biofunctionalization of Natural Fiber-Reinforced Biocomposites for Biomedical Applications

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