Bio and photoactive starch/MnO2 and starch/MnO2/cotton hydrogel nanocomposite

Saraf, Pegah; Movaghar, Mahdieh Abdollahi; Montazer, Majid; Rad, Mahnaz Mahmoudi

doi:10.1016/j.ijbiomac.2021.10.168

Cited by 15 publications

(9 citation statements)

References 52 publications

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“…KMnO 4 was used as a strong and inexpensive oxidizing agent to potentially nano cross-link the starch molecular chains and graft the starch to cellulose molecular chains along with synthesizing MnO 2 NPs to further obtain antibacterial, antifungal and photocatalytic properties. 12 Synthesis, structural features, and paramagnetic properties of Mn-containing NCs based on polysaccharides arabinogalactan (AG), sulfated AG (AGS), and κ-carrageenan (κ-CG) have been studied by Khutsishvili et al 35 The AG was obtained from a polysaccharide of Siberian larch, Larix sibirica Ledeb. It was additionally purified of impurities and flavonoids by passing it through a polyamide column.…”

Section: Synthesis Methods Of Manganese Nanoparticlesmentioning

confidence: 99%

“…Substances containing microelements are necessary for successful functioning of plants and are of great interest for agrochemistry. Several recent reviews focused on the effect of various nanoparticles (NPs) on plants that are available, , including heavy metal NPs , and agricultural potential of their hormetic phytoeffects. − Biomedical applications of manganese (Mn) NPs are also being actively studied, , but we are unaware of recent comprehensive reviews, if any, specifically on the use of Mn NPs as plant growth stimulators and agents for regulating phytopathogens, or this information is rather scattered . Therefore, the main purpose of this review is to fill this gap by demonstrating that Mn NPs are of interest for modern agriculture as potential growth stimulants for cultivated plants, as well as cost-effective and environmentally friendly sources of mineral nutrition.…”

Section: Introductionmentioning

confidence: 99%

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Manganese Nanoparticles: Synthesis, Mechanisms of Influence on Plant Resistance to Stress, and Prospects for Application in Agricultural Chemistry

Perfileva,

Krutovsky

2024

J. Agric. Food Chem.

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Manganese (Mn) is an important microelement for the mineral nutrition of plants, but it is not effectively absorbed from the soil and mineral salts added thereto and can also be toxic in high concentrations. Mn nanoparticles (NPs) are less toxic, more effective, and economical than Mn salts due to their nanosize. This article critically reviews the current publications on Mn NPs, focusing on their effects on plant health, growth, and stress tolerance, and explaining possible mechanisms of their effects. This review also provides basic information and examples of chemical, physical, and ecological (“green”) methods for the synthesis of Mn NPs. It has been shown that the protective effect of Mn NPs is associated with their antioxidant activity, activation of systemic acquired resistance (SAR), and pronounced antimicrobial activity against phytopathogens. In conclusion, Mn NPs are promising agents for agriculture, but their effects on gene expression and plant microbiome require further research.

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Section: Synthesis Methods Of Manganese Nanoparticlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Manganese Nanoparticles: Synthesis, Mechanisms of Influence on Plant Resistance to Stress, and Prospects for Application in Agricultural Chemistry

Perfileva,

Krutovsky

2024

J. Agric. Food Chem.

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“…Furthermore, starch was also used as a reduction-assistant agent. Although the hydrogel depicted high antibacterial ( S. aureus and E. coli ) and antifungal ( C. albicans ) activity, the hydrogel nanocomposite fabrics did not show such satisfactory results due to low absorption, low loading, and poor uniformity of hydrogel nanocomposite on the fabric [ 107 ].…”

Section: Polysaccharides In Metal-nanoparticle-functionalized Textilesmentioning

confidence: 99%

Polysaccharides and Metal Nanoparticles for Functional Textiles: A Review

et al. 2022

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Nanotechnology is a powerful tool for engineering functional materials that has the potential to transform textiles into high-performance, value-added products. In recent years, there has been considerable interest in the development of functional textiles using metal nanoparticles (MNPs). The incorporation of MNPs in textiles allows for the obtention of multifunctional properties, such as ultraviolet (UV) protection, self-cleaning, and electrical conductivity, as well as antimicrobial, antistatic, antiwrinkle, and flame retardant properties, without compromising the inherent characteristics of the textile. Environmental sustainability is also one of the main motivations in development and innovation in the textile industry. Thus, the synthesis of MNPs using ecofriendly sources, such as polysaccharides, is of high importance. The main functions of polysaccharides in these processes are the reduction and stabilization of MNPs, as well as the adhesion of MNPs onto fabrics. This review covers the major research attempts to obtain textiles with different functional properties using polysaccharides and MNPs. The main polysaccharides reported include chitosan, alginate, starch, cyclodextrins, and cellulose, with silver, zinc, copper, and titanium being the most explored MNPs. The potential applications of these functionalized textiles are also reported, and they include healthcare (wound dressing, drug release), protection (antimicrobial activity, UV protection, flame retardant), and environmental remediation (catalysts).

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“…Similarly, a starch/MnO 2 /cotton hydrogel nanocomposite has been synthesized [81]. 0.008 M potassium permanganate, 0.7 g starch, and 0.6 M sodium hydroxide were used to make the optimal starch hydrogel nanocomposite at 50-55 • C. Potassium permanganate was used as a strong and cheap oxidizing agent to prepare manganese dioxide nanoparticles and cross-link the starch molecular chains to cellulose molecular chains.…”

Section: Polymeric Aerogels and Hydrogelsmentioning

confidence: 99%

“…0.008 M potassium permanganate, 0.7 g starch, and 0.6 M sodium hydroxide were used to make the optimal starch hydrogel nanocomposite at 50-55 • C. Potassium permanganate was used as a strong and cheap oxidizing agent to prepare manganese dioxide nanoparticles and cross-link the starch molecular chains to cellulose molecular chains. Because of its simple one-step synthesis approach, in-situ preparation of nanoparticles, cost-effectiveness, and desirable activity such as photocatalysis, biocompatibility, antibacterial properties of 93 percent against S. aureus, the starch hydrogel nanocomposite is a good material for various applications such as agriculture, medical, textile engineering, and water treatment [81].…”

Section: Polymeric Aerogels and Hydrogelsmentioning

confidence: 99%

Advanced Polymeric Nanocomposites for Water Treatment Applications: A Holistic Perspective

Adeola

Nomngongo

2022

Polymers

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Water pollution remains one of the greatest challenges in the modern era, and water treatment strategies have continually been improved to meet the increasing demand for safe water. In the last few decades, tremendous research has been carried out toward developing selective and efficient polymeric adsorbents and membranes. However, developing non-toxic, biocompatible, cost-effective, and efficient polymeric nanocomposites is still being explored. In polymer nanocomposites, nanofillers and/or nanoparticles are dispersed in polymeric matrices such as dendrimer, cellulose, resins, etc., to improve their mechanical, thermophysical, and physicochemical properties. Several techniques can be used to develop polymer nanocomposites, and the most prevalent methods include mixing, melt-mixing, in-situ polymerization, electrospinning, and selective laser sintering techniques. Emerging technologies for polymer nanocomposite development include selective laser sintering and microwave-assisted techniques, proffering solutions to aggregation challenges and other morphological defects. Available and emerging techniques aim to produce efficient, durable, and cost-effective polymer nanocomposites with uniform dispersion and minimal defects. Polymer nanocomposites are utilized as filtering membranes and adsorbents to remove chemical contaminants from aqueous media. This study covers the synthesis and usage of various polymeric nanocomposites in water treatment, as well as the major criteria that influence their performance, and highlights challenges and considerations for future research.

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Bio and photoactive starch/MnO2 and starch/MnO2/cotton hydrogel nanocomposite

Cited by 15 publications

References 52 publications

Manganese Nanoparticles: Synthesis, Mechanisms of Influence on Plant Resistance to Stress, and Prospects for Application in Agricultural Chemistry

Manganese Nanoparticles: Synthesis, Mechanisms of Influence on Plant Resistance to Stress, and Prospects for Application in Agricultural Chemistry

Polysaccharides and Metal Nanoparticles for Functional Textiles: A Review

Advanced Polymeric Nanocomposites for Water Treatment Applications: A Holistic Perspective

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