Semi-interpenetrating polymer networks containing polysaccharides. II.                 Xanthan/lignin networks: a spectral and thermal characterization

Rǎschip, Irina Elena; Hitruc, Elena Gabriela; Vasile, Cornelia

doi:10.1177/0954008311399112

Cited by 37 publications

(18 citation statements)

References 27 publications

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“…The synthesized hydrogels showed maximum water absorption values after 100 h and followed a Fickian water transport mechanism [86]. The hybrid hydrogels based on xanthan gum and lignin were studied by Raschip et al [184,185]. Xanthan gum and lignin were crosslinked by addition of epichlorohydrin under alkaline condition.…”

Section: Preparation and Characterization Of Lignin Hydrogelsmentioning

confidence: 99%

“…Xanthan gum and lignin were crosslinked by addition of epichlorohydrin under alkaline condition. These hydrogels showed promising ability as vanillin (active aroma ingredient) delivery systems [184]. Yamamoto et al used a two-step process to produce lignin-based hydrogels containing phenol, resorcinol, and glutaraldehyde [186].…”

Section: Preparation and Characterization Of Lignin Hydrogelsmentioning

confidence: 99%

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Status and future scope of plant-based green hydrogels in biomedical engineering

Mohammadinejad

Maleki

Larrañeta

et al. 2019

Applied Materials Today

188

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Hydrogels are the most iconic class of soft materials and since their first report in the literature has attracted the attention of uncountable researchers. Over the past two decades, hydrogels become smart and sophisticated materials with plenty of applications possibilities. The biomedical research area has demonstrated a particular interest in hydrogels since they can be engineered from different polymers and due to their tunable properties. Moreover, hydrogels engineered from polymers extracted from biorenewable sources have been popularized in biomedical usages, as they are low-toxic, eco-friendly, biocompatible, easily accessible, and inexpensive at the same time. However, the multifaceted challenge is to find an ideal plant green hydrogel in the tissue engineering that can mimic critical properties of human tissues in terms of structure, function, and performance. In addition, these natural polymers are also idealized to be conveniently functionalized so that their chemical and physical behaviour can be manipulated for drug delivery and stem cell-guided tissue regeneration. Here, the most recent advances in the synthesis, fabrication and application of plant green hydrogels in biomedical engineering are reviewed. It covers essential and updated information about plant as green sources of biopolymers to be used in hydrogel synthesis, general aspects of hydrogels and plant green hydrogels and a substantive discussion regarding the use of such hydrogels in the biomedical engineering area. Furthermore, this review addresses and detail the present status of the field and, also, answer several important questions about the potential use of plant green hydrogels in advanced biomedical applications including therapeutic, tissue engineering, wound dressing, diagnostic, etc.

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Section: Preparation and Characterization Of Lignin Hydrogelsmentioning

confidence: 99%

Section: Preparation and Characterization Of Lignin Hydrogelsmentioning

confidence: 99%

Status and future scope of plant-based green hydrogels in biomedical engineering

Mohammadinejad

Maleki

Larrañeta

et al. 2019

Applied Materials Today

188

View full text Add to dashboard Cite

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“…Xantham gum is a polysaccharide that can be used for the production of biodegradable hydrogels, but it has limited reactivity and a narrow range in thermo‐chemical properties. Copolymers between xantham gum and lignin are expected to improve these features, while offering enhanced thermo‐oxidative properties, and antimicrobial activity . Raschip et al .…”

Section: Lignin For Biomedical Applicationsmentioning

confidence: 99%

Recent developments in polymers derived from industrial lignin

Ten

Vermerris

2014

J of Applied Polymer Sci

155

112

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Lignin is an aromatic polymer that makes up 15-30% of the cell walls of terrestrial plants. While lignin's role in facilitating water transport through the vasculature, providing rigidity and acting as a defense against pests and pathogens is important for the plant's survival, industries that process plant biomass for the production of biofuels and bio-based chemicals have historically primarily been interested in the cell wall polysaccharides, especially cellulose. Consequently, lignin is generated in large quantities as a by-product that is often burned to generate heat and electricity, or that is used in low-value applications. It is becoming clear that, rather than treating it as waste, lignin is very suitable for the production of enhanced composites, carbon fibers, and nanomaterials, which offers both economic and environmental benefits. This review highlights recent uses of these polymers as adsorbents, flocculants, adhesives, anti-oxidants, energy storing films, and vehicles for drug delivery and gene therapy.

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“…The characteristics of FTIR spectrum of dried lignin corresponds to FTIR spectrum at wavenumbers: (1) 3338 cm -1 ; (2) 2920 cm -1 ; (3) 1695 cm -1 ; (4) 1604 cm -1 ; (5) 1509 cm -1 ; (6) 1420 cm -1 ; (7) 1213 cm -1 ; (8) 1112 cm -1 ; and (9) 1033 cm -1 . These absorption bands in the FTIR spectrum can be assigned to (1) hydroxyl groups in phenolic and aliphatic structures, (2) CH stretching in aromatic methoxyl groups and in aliphatic methyl and methylene groups of side chains, (3) C=O stretching in conjugated p-substituted aryl ketones, (4) -C=O of pyruvate, (5) C=C stretching of the aromatic ring (G)CH deformation, (6) C-H asymmetric deformation in -OCH3, (7) aromatic C-O stretching vibrations, (8) aromatic C-H in-plane deformation, and (9) Calkyl-O ether vibrations methoxyl, respectively [21]. The spectra presented the characteristic peaks of lignin that also reported by others [22][23].…”

Section: ■ Results and Discussion The Composition And The Thermal Anamentioning

confidence: 99%

Carbonization of Lignin Extracted from Liquid Waste of Coconut Coir Delignification

et al. 2020

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Lignin as a by-product of the pulping process is less widely used for worth materials. In this study, the utilization of lignin by-product of the soda delignification process of coconut coir converted to the activated carbon by a simple precipitation method followed by the carbonization at various temperatures is presented. The by-product liquor of the soda delignification process having a pH of 13.4 was neutralized by dropping of hydrochloric acid solution to achieve the pH solution of 4 resulting in the lignin precipitation. The precipitated was washed, filtered, and dried. The dried lignin was then carbonized under a nitrogen atmosphere at various temperatures of 500, 700, and 900 °C. The dried lignin and carbonized samples were characterized using SEM, XRD, FTIR, and nitrogen adsorption-desorption analyzer, to examine their morphology, X-Ray diffraction pattern, chemical bonding interaction, and surface area-pore size distribution, respectively. The characterization results showed that the functional groups of lignin mostly disappeared gradually with the increase of temperature approached the graphite spectrum. The XRD patterns confirmed that the carbonized lignin particles were amorphous and assigned as graphitic. All samples had a pore size of 3–4 nm classified as mesoporous particles. This study has shown that the carbonization lignin at a temperature of 700 °C had the highest surface area (i.e. 642.5 m2/g) in which corresponds to the highest specific capacitance (i.e. 28.84 F/g).

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Semi-interpenetrating polymer networks containing polysaccharides. II. Xanthan/lignin networks: a spectral and thermal characterization

Cited by 37 publications

References 27 publications

Status and future scope of plant-based green hydrogels in biomedical engineering

Status and future scope of plant-based green hydrogels in biomedical engineering

Recent developments in polymers derived from industrial lignin

Carbonization of Lignin Extracted from Liquid Waste of Coconut Coir Delignification

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