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<p>Horticulture represents a specialized sector within agriculture that encompasses the scientific, technological. However, a significant challenge that has adversely affected the economic viability of horticulture is the poor rooting of cuttings. This study investigates the efficacy and synthesis of silica-coated magnetite nanoparticles (Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs) as a nanocarrier for indole-3-butyric acid (IBA) loading and its impact on rooting in tobacco (<i>Nicotiana tabacum</i> L.) plants. The mean particle size (MPS) of the IBA-loaded Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs was measured to be 219&#xa0;nm (nm) using dynamic light scattering (DLS) analysis. According to scanning electron microscopy (SEM), the nanoparticles were spherical (mean size =  ~ 178&#xa0;nm). Fourier-transform infrared (FTIR) spectroscopy was employed to detect the characteristic peaks of IBA on Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs. Also, a 41% hormone loading efficiency (HLE) and an ~ 82% encapsulation efficiency (EE) were noted for IBA loading. The results indicated that among the different concentrations of IBA-Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs (1, 2, and 3&#xa0;mg L<sup>−1</sup>), the optimal concentration of 3&#xa0;mg L<sup>−1</sup> improves rooting results, including in the highest root length (8.96&#xa0;cm), the highest dry and fresh root weights (0.06&#xa0;g and 0.84&#xa0;g, respectively), and the shortest root formation time, averaging 2.66&#xa0;days. In summary, the research suggests that Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs represent a promising nanocarrier for hormone loading in agricultural practices. This research has substantial practical implications, as it has the potential to improve productivity and root growth in agriculture. In addition to the benefits of these nanoparticles, it is important to consider their potential toxicity.</p>

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Development and Characterization of Indole- 3-Butyric Acid-Functionalized Fe3O4@SiO2 Nanoparticles for Improved Plant Root Development

  • 期刊论文

  • 发表日期：

    2025年5月19日

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  • Masoumeh Ghorbani,
  • Somayeh Ghorbani,
  • Danial Kahrizi,
  • Elham Arkan

摘要

Horticulture represents a specialized sector within agriculture that encompasses the scientific, technological. However, a significant challenge that has adversely affected the economic viability of horticulture is the poor rooting of cuttings. This study investigates the efficacy and synthesis of silica-coated magnetite nanoparticles (Fe3O4@SiO2 NPs) as a nanocarrier for indole-3-butyric acid (IBA) loading and its impact on rooting in tobacco (Nicotiana tabacum L.) plants. The mean particle size (MPS) of the IBA-loaded Fe3O4@SiO2 NPs was measured to be 219 nm (nm) using dynamic light scattering (DLS) analysis. According to scanning electron microscopy (SEM), the nanoparticles were spherical (mean size =  ~ 178 nm). Fourier-transform infrared (FTIR) spectroscopy was employed to detect the characteristic peaks of IBA on Fe3O4@SiO2 NPs. Also, a 41% hormone loading efficiency (HLE) and an ~ 82% encapsulation efficiency (EE) were noted for IBA loading. The results indicated that among the different concentrations of IBA-Fe3O4@SiO2 NPs (1, 2, and 3 mg L−1), the optimal concentration of 3 mg L−1 improves rooting results, including in the highest root length (8.96 cm), the highest dry and fresh root weights (0.06 g and 0.84 g, respectively), and the shortest root formation time, averaging 2.66 days. In summary, the research suggests that Fe3O4@SiO2 NPs represent a promising nanocarrier for hormone loading in agricultural practices. This research has substantial practical implications, as it has the potential to improve productivity and root growth in agriculture. In addition to the benefits of these nanoparticles, it is important to consider their potential toxicity.