Smart nanocomposites of chitosan/alginate nanoparticles loaded with copper oxide as alternative nanofertilizers

Leonardi, Marco; Caruso, Giuseppe; Carroccio, Sabrina; Boninelli, Simona; Curcuruto, Giusy; Zimbone, Massimo; Allegra, Maria; Torrisi, Biagio; Ferlito, Filippo; Miritello, M.

doi:10.1039/d0en00797h

Cited by 59 publications

(33 citation statements)

References 62 publications

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“…The researchers noticed a three times higher bacteriostatic activity of these nanoparticles than free ε-polylysine, To meet the increasing global food demand, scientists have developed novel nanoscale fertilizers. In this respect, Leonardi et al [144] have designed a shell made by polyelectrolyte complexation of chitosan and sodium alginate into which they incorporated copper oxide NPs. The nanosystem's efficacy was evaluated on Fortunella margarita Swingle seeds, demonstrating benefits for seedling growth and development of epigean and hypogean parts.…”

Section: Food Additivesmentioning

confidence: 99%

Applications of Chitosan-Alginate-Based Nanoparticles—An Up-to-Date Review

2022

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Chitosan and alginate are two of the most studied natural polymers that have attracted interest for multiple uses in their nano form. The biomedical field is one of the domains benefiting the most from the development of nanotechnology, as increasing research interest has been oriented to developing chitosan-alginate biocompatible delivery vehicles, antimicrobial agents, and vaccine adjuvants. Moreover, these nanomaterials of natural origin have also become appealing for environmental protection (e.g., water treatment, environmental-friendly fertilizers, herbicides, and pesticides) and the food industry. In this respect, the present paper aims to discuss some of the newest applications of chitosan-alginate-based nanomaterials and serve as an inception point for further research in the field.

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Section: Food Additivesmentioning

confidence: 99%

Applications of Chitosan-Alginate-Based Nanoparticles—An Up-to-Date Review

2022

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“…Such procedure is environmentally friendly and leads to formation of a biodegradable nanocomposite where doping molecules are embedded. The hybrid nanostructure has been tested for CuO delivery and demonstrates the appreciated ability to prolong the release of the Cu at a significant extent even in comparison to CuO-NPs [65,118] (Tables 3 and 6b).…”

Section: Hybrid Functionalization and Multiple Distribution By Chitosan Nanomaterialsmentioning

confidence: 99%

Tools for Nano-Enabled Agriculture: Fertilizers Based on Calcium Phosphate, Silicon, and Chitosan Nanostructures

et al. 2021

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The Green New Deal requires a profound transformation of the agricultural sector, which will have to become more sustainable and ensure universal access to healthy food. Thus, it will be essential to introduce radical technological innovations. Nanotechnologies have the potential to produce a significant boost to the improvement of the food system. Within this context, in the next years, a strong challenge will need to be faced regarding developing new and more efficient uses of nutrients in agriculture, being the nutrient use efficiency (NUE) paramount in sustaining high crop productivity without depleting biodiversity, and altering both the natural and agricultural systems. Nutrients leaching causes environmental pollution and water eutrophication, while nutrient excess favors pest and weed widespread. Therefore, it will be mandatory to improve plant nutrition efficiency without affecting agricultural productivity and economic sustainability. A promising alternative consists of the introduction of the so-called nanomaterial enhanced fertilizers and plant growth stimulators. Such innovation includes nanotechnological solutions that can improve nutrient delivery for a more finely tuned, accurate, and saving-resources distribution of nutrients. This review provides a critical view of the latest advances in nanofertilizer research, mainly referring to nano-hydroxyapatite, silica nanoparticles, and chitosan-derived nanostructures.

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“…Regarding physical characteristics, the quantity and distribution of sand, clay, and silt was obtained by particle-size analysis using the "micro-pipette" method [64]. In terms of chemical properties, total nitrogen (N), organic matter (OM), soil extractable phosphorus (mg/kg), soil exchangeable potassium (meq/100 g), cation exchange capacity, pH, and electrical conductivity (EC) determinations were determined as described in [65][66][67][68][69][70][71]. Total nitrogen was measured by Kjeldahl digestion using a Buchi Labortechnik GmbH N analyzer, and organic matter (OM) was measured by quantifying total organic carbon (TOC, mg•kg −1 ).…”

Section: Soil Analysis and Climatic Datamentioning

confidence: 99%

Effects of Different Inter-Row Soil Management and Intra-Row Living Mulch on Spontaneous Flora, Beneficial Insects, and Growth of Young Olive Trees in Southern Italy

Casas¹,

Ciaccia

Iovino³

et al. 2022

Plants

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Conservation agriculture (i.e., minimized soil disturbance and permanent soil covering) and living mulches represent two agroecological practices that can improve soil fertility, spontaneous flora, and beneficial insect communities. This research studied the effect of these practices in a young olive orchard in the Mediterranean area. Two Sicilian olive cultivars (‘Nocellara del Belice’ and ‘Nocellara etnea’) were used for the field experiment; inter-row minimum and zero tillage and four species of aromatic plants as living mulch along the row were tested. Spontaneous flora and beneficial insect communities, as well as tree growth, were monitored. The inter-row management did not influence the spontaneous flora dynamics. The species adopted for living mulch showed a very different degree of development and soil cover; 69 insect species (pollinators and predators) belonging to five orders (Hymenoptera, Lepidoptera, Diptera, Neuroptera, and Coleoptera) and 17 families were recorded. The growth of the olive trees was not affected by the conservative strategies.: In the inter-row, the growth of the spontaneous flora was limited by the high temperatures during the summer. Among the living mulch species, sage and lemongrass guaranteed an almost full soil cover, reducing the need for weed management along the row, as well as increasing the beneficial insects without influencing the young tree growth.

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Smart nanocomposites of chitosan/alginate nanoparticles loaded with copper oxide as alternative nanofertilizers

Abstract: A chitosan and sodium alginate complex acts as a biodegradable shell to release nanoscaled nutrients, CuO nanoparticles, as an alternative smart delivery nanofertilizer.

Cited by 59 publications

References 62 publications

Applications of Chitosan-Alginate-Based Nanoparticles—An Up-to-Date Review

Applications of Chitosan-Alginate-Based Nanoparticles—An Up-to-Date Review

Tools for Nano-Enabled Agriculture: Fertilizers Based on Calcium Phosphate, Silicon, and Chitosan Nanostructures

Effects of Different Inter-Row Soil Management and Intra-Row Living Mulch on Spontaneous Flora, Beneficial Insects, and Growth of Young Olive Trees in Southern Italy

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