Synthesis and characterization of silver nanoparticles loaded poly(vinyl alcohol)-lignin electrospun nanofibers and their antimicrobial activity

Aadil, Keshaw Ram; Mussatto, Solange I.; Jha, Harit

doi:10.1016/j.ijbiomac.2018.08.109

Cited by 115 publications

(45 citation statements)

References 24 publications

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“…The presence of silver nanoparticles shows a promising potential to employ antimicrobial fabrics and wound dressing material. [121] Loading silver nanoparticles over lignin/poly(vinyl alcohol) nanofiber mats via the electrospinning technique indicate growth inhibition zone against Bacillus circulans and Escherichia coli. Fused filament fabrication (FFF) for is a 3D printing method based on the heating a polymer filament, extruding through a small nozzle and finally solidifying on a build plate.…”

Section: Ligninmentioning

confidence: 99%

3D Bioprinting of Lignocellulosic Biomaterials

Shavandi

Hosseini

Okoro

et al. 2020

Adv Healthcare Materials

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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.

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Section: Ligninmentioning

confidence: 99%

3D Bioprinting of Lignocellulosic Biomaterials

Shavandi

Hosseini

Okoro

et al. 2020

Adv Healthcare Materials

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“…In medicine, it can be used as an auxiliary material to improve the oral bioavailability of the drug [ 34 ]. In addition, lignin can increase the stability of the antimicrobial properties of wound dressings [ 35 , 36 ]. Lignin-based hydrogels, which combine lignin with other polymers, have been used for gene delivery [ 37 ], drug delivery [ 38 ], and tissue engineering [ 39 , 40 ].…”

Section: Discussionmentioning

confidence: 99%

Exploring the biosynthetic pathway of lignin in Acorus tatarinowii Schott using de novo leaf and rhizome transcriptome analysis

et al. 2021

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Acorus tatarinowii Schott is a well-known Chinese traditional herb. Lignin is the major biologically active ingredient and exerts a broad range of pharmacological effects: it is an antitumor, antioxidant, and bacteriostatic agent, and protects the cardiovascular system.In this study, the transcriptomes of the leaf and rhizome tissues of A. tatarinowii Schott were obtained using the BGISEQ-500 platform. 141,777 unigenes were successfully assembled, of which 76,714 were annotated in public databases. Further analysis of the lignin biosynthesis pathway revealed a total of 107 unigenes encoding eight key enzymes, which were involved in the lignin biosynthetic pathway. Furthermore, the expression of the key genes involved in lignin synthesis in different tissues was identified by quantitative real-time PCR. Analysis of the differentially expressed genes showed that most of the upregulated unigenes were enriched in rhizome tissues. In addition, 2,426 unigenes were annotated to the transcriptome factor (TF) family. Moreover, 16 TFs regulating the same key enzyme (peroxidase) were involved in the lignin synthesis pathway. The alignment of peroxidase amino acid sequences and the analysis of the structural characteristics revealed that the key peroxidase enzyme had well-conserved sequences, spatial structures, and active sites. This study is the first to provide comprehensive genetic information on A. tatarinowii Schott at the transcriptional level, and will facilitate our understanding of the lignin biosynthesis pathway.

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“…Adsorptive removal of Pb(II) contaminants from wastewater was successful using sago-lignin/PAN electrospun carbon nanofibers [27]. In addition to PAN, lignin blends with other polymer matrices such as polyvinyl alcohol (PVA) or polyethylene oxide (PEO) exhibited enhanced properties [28][29][30]. For example, phosphoric acid modified kraft lignin has been shown to increase the mechanical properties of electrospun lignin/PEO fibers due to an increase in lignin's molecular weight [31].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Electrospun Poly(acrylonitrile-co-Methyl Acrylate)/Lignin Nanofibers: Effects of Lignin Type and Total Polymer Concentration

et al. 2021

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Lignin macromolecules are potential precursor materials for producing electrospun nanofibers for composite applications. However, little is known about the effect of lignin type and blend ratios with synthetic polymers. This study analyzed blends of poly(acrylonitrile-co-methyl acrylate) (PAN-MA) with two types of commercially available lignin, low sulfonate (LSL) and alkali, kraft lignin (AL), in DMF solvent. The electrospinning and polymer blend solution conditions were optimized to produce thermally stable, smooth lignin-based nanofibers with total polymer content of up to 20 wt % in solution and a 50/50 blend weight ratio. Microscopy studies revealed that AL blends possess good solubility, miscibility, and dispersibility compared to LSL blends. Despite the lignin content or type, rheological studies demonstrated that PAN-MA concentration in solution dictated the blend’s viscosity. Smooth electrospun nanofibers were fabricated using AL depending upon the total polymer content and blend ratio. AL’s addition to PAN-MA did not affect the glass transition or degradation temperatures of the nanofibers compared to neat PAN-MA. We confirmed the presence of each lignin type within PAN-MA nanofibers through infrared spectroscopy. PAN-MA/AL nanofibers possessed similar morphological and thermal properties as PAN-MA; thus, these lignin-based nanofibers can replace PAN in future applications, including production of carbon fibers and supercapacitors.

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Synthesis and characterization of silver nanoparticles loaded poly(vinyl alcohol)-lignin electrospun nanofibers and their antimicrobial activity

Cited by 115 publications

References 24 publications

3D Bioprinting of Lignocellulosic Biomaterials

3D Bioprinting of Lignocellulosic Biomaterials

Exploring the biosynthetic pathway of lignin in Acorus tatarinowii Schott using de novo leaf and rhizome transcriptome analysis

Fabrication and Characterization of Electrospun Poly(acrylonitrile-co-Methyl Acrylate)/Lignin Nanofibers: Effects of Lignin Type and Total Polymer Concentration

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