Negatively Charged Lipids Exhibit Negligible Effects on the Water Repellency of Montmorillonite Films

Kessenich, Brenda L; Pokhrel, Nihit; Kibue, Joshua K.; Flury, Markus; Maibaum, Lutz; Yoreo, James J. De

doi:10.1021/acsomega.0c00499

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…Because of the significant environmental concerns and consumer health, novel biomass-based packaging materials are attracting much research attention. Film products from natural sources such as polysaccharides, proteins, and lipids were investigated in several studies in recent years [1][2][3][4][5][6]. Hemicellulose (HC), as a promising renewable raw material source, is considered to be the second most abundant natural polysaccharide after cellulose, with excellent biocompatibility, biodegradability, and reproducibility, providing the possibility to develop packaging materials [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Active Biodegradable Polyvinyl Alcohol–Hemicellulose/Tea Polyphenol Films with Excellent Moisture Resistance Prepared via Ultrasound Assistance for Food Packaging

Guo

Wang

et al. 2021

Coatings

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Poor water-vapor barriers and mechanical properties are common problems of biobased films. To maintain food quality, the barrier and its strength performance need to be improved. Tea polyphenols (TP) are a natural active substance, and their benzene ring structure provides a barrier for them as a film material. Films that incorporate TP also have enriched functionalities, e.g., as antioxidants. Here, active poly (vinyl alcohol) (PVA)-hemicellulose (HC)/TP films with good moisture resistance and antioxidant capacity were prepared via ultrasound assistance. The effects of TP incorporation and ultrasonication on the physical, antioxidant, and micromorphological properties of the films were investigated. Results showed that the addition of TP improved the thermal stability and water-vapor permeability (WVP) of the composite films. When a PVA-HC/TP composite film with a PVA-HC to TP mass ratio of 100:10 was treated with ultrasonication for 45 min, tensile strength was 25.61 Mpa, which was increased by 54% from the film without any treatment, and water-vapor permeability (WVP) value declined from 49% to 4.29 × 10−12 g·cm/cm2·s·Pa. More importantly, the films’ DPPH scavenging activity increased to the maximal levels of 85.45%. In short, these observations create a feasible strategy for preparing high-performance biodegradable active-packaging films.

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Section: Introductionmentioning

confidence: 99%

Active Biodegradable Polyvinyl Alcohol–Hemicellulose/Tea Polyphenol Films with Excellent Moisture Resistance Prepared via Ultrasound Assistance for Food Packaging

Guo

Wang

et al. 2021

Coatings

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Organo-Modification of Montmorillonite

Guo

Liu

Gates

et al. 2020

Clays and clay miner.

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Modification of the surfaces of montmorillonite (Mnt) by organic molecules is an effective method for improving their affinity toward non-aqueous substances, and has resulted in extensive industrial applications as rheological control agents, drilling fluids, and other functional materials used in applications ranging from environmental remediation to coatings. The present study reviewed recent progress in organo-modification of Mnt, and provides state-of-the-art insights into proposed modification mechanisms and the peculiar functionalities of the resulting organo-montmorillonite (OMnt). Several routes have been employed to modify Mnt, including ion exchange with organic ions, surface adsorption, and grafting of organics. Commonly used organic modifiers include cationic, anionic, zwitterionic, non-ionic, and polymeric species. Organo-modification is driven by multiple interactions: van der Waals forces, cation exchange, electrostatic interaction, hydrogen bonds, and ion–dipole interaction. OMnt, in general, exhibits synergistic and/or antagonistic effects when used in oil-based drilling fluids, environmental remediation, or layered silicate/polymer nanocomposites. The detailed mechanisms of non-ionic and zwitterionic modification of Mnt remain unclear. This literature survey suggests that future work should emphasize deeper understanding of interactions between the Mnt and the organic modifiers, and meanwhile expand the applications of OMnt into catalysis, drug carriers, and the biomedical field.Graphical abstract

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Land-use-driven changes in functional profiles of microbial lipid metabolism affect soil water repellency

Chai,

Qu,

et al. 2024

CATENA

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Negatively Charged Lipids Exhibit Negligible Effects on the Water Repellency of Montmorillonite Films

Cited by 3 publications

References 17 publications

Active Biodegradable Polyvinyl Alcohol–Hemicellulose/Tea Polyphenol Films with Excellent Moisture Resistance Prepared via Ultrasound Assistance for Food Packaging

Active Biodegradable Polyvinyl Alcohol–Hemicellulose/Tea Polyphenol Films with Excellent Moisture Resistance Prepared via Ultrasound Assistance for Food Packaging

Organo-Modification of Montmorillonite

Land-use-driven changes in functional profiles of microbial lipid metabolism affect soil water repellency

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