Montmorillonite clay: Introduction and evaluation of its applications in different organic syntheses as catalyst: A review

Yaghmaeiyan, Nahid; Mirzaei, Mehdi; Delghavi, Reza

doi:10.1016/j.rechem.2022.100549

Cited by 31 publications

(11 citation statements)

References 168 publications

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“…Most importantly, these nanoclay‐based hydrogels can promote the adherence of human dermal fibroblasts on the surface of the hydrogels 18 . Compared with different clay‐based materials, the swelling and expansion of montmorillonite in the face of water are significant, offering it proper aspects similar to hydrogels and making it a proper material for preparing composite hydrogels 19,20 . Montmorillonite is a natural inorganic material of clay category with higher cation exchange capability and the best structure and properties for polymeric nanocomposites 21,22 .…”

Section: Introductionmentioning

confidence: 99%

“…18 Compared with different claybased materials, the swelling and expansion of montmorillonite in the face of water are significant, offering it proper aspects similar to hydrogels and making it a proper material for preparing composite hydrogels. 19,20 Montmorillonite is a natural inorganic material of clay category with higher cation exchange capability and the best structure and properties for polymeric nanocomposites. 21,22 This material has different therapeutic applications, including wound healing properties, cleansing skin, and blood clotting.…”

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confidence: 99%

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Nanoclay particles as a stem cell adhesion factor in polyvinyl alcohol hydrogel‐based wound dressings

Renani,

Nazarpak,

Solati‐Hashjin

et al. 2024

Polymer Engineering & Sci

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As the primary goal in the wound care intervention is the promotion of rapid wound healing, researchers sought to find a remedy. In this progression course, nanocomposite‐based hydrogels have attracted the attention. Herein, we used a polyvinyl alcohol (PVA) hydrogel in combination with two forms of clay nanoparticles, namely unmodified montmorillonite (MONT) and modified (OMONT), to fabricate a nanocomposite‐based hydrogels and combat the lack of stem cells' adhesion to PVA, followed by seeding of adipose‐derived stem cells (ADSCs) on them. To investigate the characteristics of these constructs, corresponding tests were performed. The Young's modulus and elongation at break of PVA/5% OMONT were 3.7 ± 0.014 and 800 ± 35, respectively, which were higher than those of PVA/5% MONT (3 ± 0.03 and 320 ± 14). In addition, the hardness of the modified group (7.2 ± 0.07) was lower than the unmodified one (9.8 ± 0.07). The water vapor transmission rate (WVTR) in the OMONT group was 39 ± 0.28, which was lower than PVA/5% MONT (46 ± 4.24). Hence, ADSCs/PVA montmorillonite dressing may improve wound healing and provide a new way to employ stem cells, significantly impacting skin tissue engineering safely.Highlights Modified montmorillonite had higher stem cell binding. The lack of stem cells' adhesion to polyvinyl alcohol (PVA) was solved. Adipose‐derived stem cells/PVA montmorillonite dressing may improve wound healing. It is a novel promising approach for skin tissue engineering.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Nanoclay particles as a stem cell adhesion factor in polyvinyl alcohol hydrogel‐based wound dressings

Renani,

Nazarpak,

Solati‐Hashjin

et al. 2024

Polymer Engineering & Sci

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“…They provide composites with improved properties owed to their stability, swelling capacity, interlayer spacing, elevated hydration, and high chemical reactivity. One of the most used nanoclays is montmorillonite [ 8 ], with a chemical formula of [(Na,Ca) 0.33 (Al,Mg) 2 (Si 4 O 10 )(OH) 2 ·nH 2 O], which consists of stacked layers with each layer composed of two O-Si-O tetrahedral sheets sandwiching one O-Al(Mg)-O octahedral sheet (ca. 100 nm × 100 nm, in width and length).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Polyhydroxyalkanoate/Graphene Oxide/Nanoclay Bionanocomposites: Experimental Results and Theoretical Predictions via Machine Learning Models

Champa-Bujaico,

Díez-Pascual,

García-Díaz

2023

Biomolecules

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Predicting the mechanical properties of multiscale nanocomposites requires simulations that are costly from a practical viewpoint and time consuming. The use of algorithms for property prediction can reduce the extensive experimental work, saving time and costs. To assess this, ternary poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV)-based bionanocomposites reinforced with graphene oxide (GO) and montmorillonite nanoclay were prepared herein via an environmentally friendly electrochemical process followed by solution casting. The aim was to evaluate the effectiveness of different Machine Learning (ML) models, namely Artificial Neural Network (ANN), Decision Tree (DT), and Support Vector Machine (SVM), in predicting their mechanical properties. The algorithms’ input data were the Young’s modulus, tensile strength, and elongation at break for various concentrations of the nanofillers (GO and nanoclay). The correlation coefficient (R2), mean absolute error (MAE), and mean square error (MSE) were used as statistical indicators to assess the performance of the models. The results demonstrated that ANN and SVM are useful for estimating the Young’s modulus and elongation at break, with MSE values in the range of 0.64–1.0% and 0.14–0.28%, respectively. On the other hand, DT was more suitable for predicting the tensile strength, with the indicated error in the range of 0.02–9.11%. This study paves the way for the application of ML models as confident tools for predicting the mechanical properties of polymeric nanocomposites reinforced with different types of nanofiller, with a view to using them in practical applications such as biomedicine.

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“…9 Preliminary explorations by Marisa Masumi Beppu et al highlight the potential of inorganic fillers to enhance the properties of starch-based films. [10][11][12] Akin to these findings, Yaghmaeiyan et al 13 underscore the augmenting impact of clay, particularly montmorillonite, on tensile strength, water resistance, and water vapor permeability reduction in starchbased compositions. 9,13,14 Montmorillonite (Mt) clay is chosen primarily due to its minimal hydraulic permeability when saturated, thus ensuring that diffusion becomes the predominant transport mechanism within the barrier.…”

mentioning

confidence: 99%

“…[10][11][12] Akin to these findings, Yaghmaeiyan et al 13 underscore the augmenting impact of clay, particularly montmorillonite, on tensile strength, water resistance, and water vapor permeability reduction in starchbased compositions. 9,13,14 Montmorillonite (Mt) clay is chosen primarily due to its minimal hydraulic permeability when saturated, thus ensuring that diffusion becomes the predominant transport mechanism within the barrier. 15 Kumari and Datta 12 draw attention to the exceptional attributes of natural clay mineral Montmorillonite (Mt) as an optimal packing material.…”

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confidence: 99%

Augmenting barrier efficiency in clay‐based starch composite films for enhanced packaging sustainability

Kumari,

Mohan

et al. 2024

Polymers for Advanced Techs

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The pervasive utilization of plastic as a cost‐effective packaging material for food has led to environmental concerns, primarily due to its non‐biodegradable nature and the ensuing release of carbon dioxide gas that contributes to global warming. In response to these challenges, researchers have shifted their focus toward biopolymers to develop eco‐friendly packaging solutions. The present study introduces a novel approach to study the release of micronutrient (Fe) from clay free starch‐glycerol film and clay‐starch‐glycerol composite film. The structural composition and characteristics of the synthesized film are meticulously examined using x‐ray diffraction (XRD), ATR, scanning electron microscopy and transmission electron microscopy analytical techniques. Notably, XRD analysis reveals a significant interaction between the starch chains and Mt through hydrogen bonding, indicative of starch and glycerol intercalation within the nanoclay gallery—a phenomenon further corroborated by IR spectra analysis. The nanoclay‐infused starch/glycerol composite film exhibits a noteworthy 2.22‐fold increase in water vapor permeability compared to clay free film, attributed to the formation of a convoluted diffusion path indicating the enhancement of the barrier performance of starch‐based films. Comparative evaluations against earlier studies are undertaken to elucidate the advancements in barrier properties, subsequently elucidating the underlying mechanisms through analytical interpretations. From the release study, the release of Fe2+ from the film with clay was observed to be more prolonged compared to a film without clay. As a result, the Montmorillonite clay–polymer composite film was selected for coating rice seeds using the dip‐coating method.

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Montmorillonite clay: Introduction and evaluation of its applications in different organic syntheses as catalyst: A review

Cited by 31 publications

References 168 publications

Nanoclay particles as a stem cell adhesion factor in polyvinyl alcohol hydrogel‐based wound dressings

Nanoclay particles as a stem cell adhesion factor in polyvinyl alcohol hydrogel‐based wound dressings

Synthesis and Characterization of Polyhydroxyalkanoate/Graphene Oxide/Nanoclay Bionanocomposites: Experimental Results and Theoretical Predictions via Machine Learning Models

Augmenting barrier efficiency in clay‐based starch composite films for enhanced packaging sustainability

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