Silylation of bacterial cellulose to design membranes with intrinsic anti-bacterial properties

Chantereau, Guillaume; Brown, Nettie; Dourges, Marie-Anne; Freire, Carmen S.R.; Silvestre, Armando J. D.; Sèbe, Gilles; Coma, Véronique

doi:10.1016/j.carbpol.2019.05.009

Cited by 38 publications

(26 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The same observation was made by Chantereau et al . for silylated bacterial cellulose, due to the release of volatile compounds and cleavage of the silane moieties through nucleophile reactions initiated by terminal groups 53 . The significant increase in the residue yield, from 5 wt% for MFC and F‐MFC to 19 wt% for A‐MFC, is indicative of the lower thermal stability of the fluorosilane due to the presence of an electron withdrawing group 54…”

Section: Resultsmentioning

confidence: 99%

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Poothanari

Michaud

Damjanović

et al. 2021

Polymer International

View full text Add to dashboard Cite

The effect of silylation of microfibrillated cellulose (MFC) surfaces on β‐phase formation in poly(vinylidene difluoride) (PVDF) and the resulting viscoelastic and dielectric performance of MFC‐PVDF composites is investigated. Two different organosilanes, namely aminated (A) and fluorinated (F), were used. Composites of PVDF and MFC at concentrations up to 10 wt%, both untreated and silylated, were prepared by solvent casting. The two different surface modifications did not markedly change the melting and crystallization enthalpy of the polymer. However, only A‐MFC was found to promote β‐phase compared to the untreated MFC and the F‐MFC, which was attributed to the formation of hydrogen bonds at the interface between the amine groups of A‐MFC and the fluorine groups of PVDF. The elastic modulus and the permittivity of all composites increased with the amount of MFC up to a maximum value, depending on the MFC modification, and then decreased. This effect was due to the formation of MFC aggregates and porosity, as further confirmed by a comparison of experimental moduli with a classical composite mechanical model. The highest elastic modulus and highest permittivity were obtained for the untreated MFC and A‐MFC composites with 5 and 1 wt%. © 2021 Society of Chemical Industry

show abstract

Section: Resultsmentioning

confidence: 99%

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Poothanari

Michaud

Damjanović

et al. 2021

Polymer International

View full text Add to dashboard Cite

show abstract

“…Although potentially applicable to other forms of lignocellulosic materials as well, various successful attempts were carried out specifically on MBC to include antimicrobial activity. Several methods such as the inclusion of, or modification with antibacterial peptides, [51] silver nanoparticles, [52] in situ synthesis of SiO 2 coated Cu nanoparticles, [44b] and antiseptics such as povidone-iodine and polyhexanide, [53] tetracycline hydrochloride (TCH)-loaded bacterial cellulose, [54] antibiotic fusidic acid, [46c] grafting of ammonium moieties (3aminopropyl)-trimethoxysilane, [55] aminosilanes, [56] and nano-ZnO [57] have been investigated to impart MBC with antimicrobial properties. MBC modifications in order to improve properties can be carried out through two methods of ex situ chemical treatments (carboxylation, acetylation, amidation, or incorporation of nanomaterials) and in situ biotreatments.…”

Section: Microbial Cellulosementioning

confidence: 99%

3D Bioprinting of Lignocellulosic Biomaterials

Shavandi

Hosseini

Okoro

et al. 2020

Adv Healthcare Materials

View full text Add to dashboard Cite

The interest in bioprinting of sustainable biomaterials is rapidly growing, and lignocellulosic biomaterials have a unique role in this development. Lignocellulosic materials are biocompatible and possess tunable mechanical properties, and therefore promising for use in the field of 3D‐printed biomaterials. This review aims to spotlight the recent progress on the application of different lignocellulosic materials (cellulose, hemicellulose, and lignin) from various sources (wood, bacteria, and fungi) in different forms (including nanocrystals and nanofibers in 3D bioprinting). Their crystallinity, leading to water insolubility and the presence of suspended nanostructures, makes these polymers stand out among hydrogel‐forming biomaterials. These unique structures give rise to favorable properties such as high ink viscosity and strength and toughness of the final hydrogel, even when used at low concentrations. In this review, the application of lignocellulosic polymers with other components in inks is reported for 3D bioprinting and identified supercritical CO2 as a potential sterilization method for 3D‐printed cellulosic materials. This review also focuses on the areas of potential development by highlighting the opportunities and unmet challenges such as the need for standardization of the production, biocompatibility, and biodegradability of the cellulosic materials that underscore the direction of future research into the 3D biofabrication of cellulose‐based biomaterials.

show abstract

“…These hybrid composites were constructed using different methods [173]: Chantereau et al report a convenient method of grafting non-leachable bioactive amine functions onto the surface of BC nanofibrils via a simple silylation treatment in water, refer to Figure 11B. Two different silylation protocols, involving different solvents and post-treatments, were envisaged and compared, using 3 aminopropyltrimethoxysilane (APS) and 2-aminoethyl)-3-aminopropyl-trimethoxysilane (AEAPS) as silylating agents [33]. BC soaked in lauric acid (LA) solutions at different concentrations [174]; BC/collagen composites prepared by immersing wet BC pellicle in collagen solution followed by a freeze-drying process [175]; amongst numerous studies, can be classified under the Ex situ 'unprocessed pellicle' (ExSUP) pathway (c) Ex situ "suspension/solution" (ExSSuSol) pathway The use of homogeneous solution or suspension of BC offers several BC-modification potentials in the biological sector.…”

Section: (B) Ex Situ 'Unprocessed Pellicle' Pathwaymentioning

confidence: 99%

Membrane Technological Pathways and Inherent Structure of Bacterial Cellulose Composites for Drug Delivery

et al. 2021

View full text Add to dashboard Cite

This report summarizes efforts undertaken in the area of drug delivery, with a look at further efforts made in the area of bacterial cellulose (BC) biomedical applications in general. There are many current methodologies (past and present) for the creation of BC membrane composites custom-engineered with drug delivery functionality, with brief consideration for very close applications within the broader category of biomedicine. The most emphasis was placed on the crucial aspects that open the door to the possibility of drug delivery or the potential for use as drug carriers. Additionally, consideration has been given to laboratory explorations as well as already established BC-drug delivery systems (DDS) that are either on the market commercially or have been patented in anticipation of future commercialization. The cellulose producing strains, current synthesis and growth pathways, critical aspects and intrinsic morphological features of BC were given maximum consideration, among other crucial aspects of BC DDS.

show abstract

Silylation of bacterial cellulose to design membranes with intrinsic anti-bacterial properties

Cited by 38 publications

References 30 publications

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

3D Bioprinting of Lignocellulosic Biomaterials

Membrane Technological Pathways and Inherent Structure of Bacterial Cellulose Composites for Drug Delivery

Contact Info

Product

Resources

About