Recent advances on nanohybrid systems constituting clay–chitosan with organic molecules – A review

Lima, Pedro Henrique Correia de; Tavares, Albaniza Alves; Silva, Suédina Maria de Lima; Moura, Márcia R. de; Aouada, Fauze A.; Grillo, Renato

doi:10.1016/j.clay.2022.106548

Cited by 18 publications

(2 citation statements)

References 161 publications

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“…They can also aid the system in encapsulating hydrophobic herbicides among their layers and are used for combating Chlamydomonas reinhardtii Dang algae. Clay elements can possibly form nano-assembling herbicides since they can be biocompatible and inexpensive and have a pertinent potential for reduction [54]. Water-bearing silicates or aluminosilicates, such as kaolinite, montmorillonite, attapulgite, diatomite, and hydrotalcite, are the principal types of clay minerals.…”

Section: Nanoherbicides Based On Inorganic Nanomaterialsmentioning

confidence: 99%

New Advances in Nano-Enabled Weed Management Using Poly(Epsilon-Caprolactone)-Based Nanoherbicides: A Review

Zargar,

Bayat,

Saquee

et al. 2023

Agriculture

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The number of effective herbicides available to farmers is steadily decreasing due to increasing herbicide resistance. It seems very important to address and effectively deal with the main weed management challenges (low crop yield and environmental pollution) by investigating the potential of newly introduced materials, such as biocompatible polymer-based nanoparticles. The current review aims to encourage agricultural or environmental researchers to conduct new research on the synthesis and application of modified herbicides, such as nanoherbicides, for application in weed management and to provide a comprehensive foundation on the topic. Such nanosystems could help with the promotion of the controlled release of active ingredients and extend their action time, resulting in a reduction in dose and application number; improve the physical and chemical characteristics of the herbicide to increase foliar adhesion; prevent degradation that results from environmental factors (such as sunlight, temperature, microorganisms, or pH); and decrease herbicide leaching and contamination of the environment. Furthermore, it has been indicated that some polymeric nanocarriers can penetrate biological barriers, including membranes and plant cell walls, and translocate across vascular tissues, resulting in a more efficient delivery of active ingredients. Poly(epsilon-caprolactone) is a biocompatible material that is easily decomposable by enzymes and fungi. PCL nanoparticles could be applied as nanocarriers of herbicides in agriculture due to their low toxicity, their potential for large-scale synthesis from inexpensive materials, their ability to dissolve herbicides, their high loading capacity, and their ability to help minimize the chemical decomposition of herbicides.

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Section: Nanoherbicides Based On Inorganic Nanomaterialsmentioning

confidence: 99%

New Advances in Nano-Enabled Weed Management Using Poly(Epsilon-Caprolactone)-Based Nanoherbicides: A Review

Zargar,

Bayat,

Saquee

et al. 2023

Agriculture

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“…The biodegradability and antimicrobial activity of the CS/clay nanocomposites can be enhanced by adding a synthetic biopolymer, such as, poly(vinyl alcohol) (PVA), poly(ethylene oxide) (PEO), poly(acrylic acid), poly(lactic acid), poly(vinylpyrrolidone), etc. [ 21 ]. pH responsible biocomposites based on CS and PVA were designed by using a layered double hydroxides (LDH) anionic clay [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Development of Hybrid Materials Based on Chitosan, Poly(Ethylene Glycol) and Laponite® RD: Effect of Clay Concentration

Morariu¹,

Brunchi²,

Honciuc³

et al. 2023

Polymers

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In the context of increasing interest in biomaterials with applicability in cosmetics and medicine, this research aims to obtain and characterize some hybrid materials based on chitosan (CS) (antibacterial, biocompatible, and biodegradable), poly(ethylene glycol) (PEG) (non-toxic and prevents the adsorption of protein and cell) and Laponite® RD (Lap) (bioactive). The rheological properties of the starting dispersions were investigated and discussed related to the interactions developed between components. All samples exhibited gel-like properties, and the storage modulus of CS/PEG dispersion increased from 6.6 Pa to 657.7 Pa by adding 2.5% Lap. Structural and morphological characterization of the films, prepared by solution casting method, was performed by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and polarized light microscopy (POM). These analyses proved the incorporation of Lap into CS/PEG films and revealed the morphological changes of the films by the addition of clay. Thereby, at the highest Lap concentration (43.8%), the “house of cards” structure formed by Lap platelets, which incorporate chitosan chains, as evidenced by SEM and POM. Two stages of degradation between 200 °C and 410 °C were evidenced for the films with Lap concentration higher than 38.5%, explained by the existence of a clay-rich phase (given by the clay network) and chitosan-rich one (due to the intercalation of chitosan in the clay network). CS/PEG film with 43.8% Lap showed the highest swelling degree of 240.7%. The analysis of the obtained results led to the conclusion that the addition of clay to the CS/PEG films increases their stability in water and gives them greater thermal stability.

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Exploring the Role of Ag Nanoparticle Distribution in Novel pH-Sensitive Nanofibers Containing Hyaluronic Acid for Enhanced Wound Healing with Sustained Curcumin Release

Sayyar,

Sadigh

2024

Fibers Polym

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Recent advances on nanohybrid systems constituting clay–chitosan with organic molecules – A review

Cited by 18 publications

References 161 publications

New Advances in Nano-Enabled Weed Management Using Poly(Epsilon-Caprolactone)-Based Nanoherbicides: A Review

New Advances in Nano-Enabled Weed Management Using Poly(Epsilon-Caprolactone)-Based Nanoherbicides: A Review

Development of Hybrid Materials Based on Chitosan, Poly(Ethylene Glycol) and Laponite® RD: Effect of Clay Concentration

Exploring the Role of Ag Nanoparticle Distribution in Novel pH-Sensitive Nanofibers Containing Hyaluronic Acid for Enhanced Wound Healing with Sustained Curcumin Release

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