Synthesis of silver and cobalt nanoparticles and assessment of their effects on germination and biometric parameters in maize (Zea mays L.)

IF 6.2 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Ecotoxicology and Environmental Safety Pub Date : 2024-10-31 DOI:10.1016/j.ecoenv.2024.117257

João Henrique Vieira de Almeida Junior , Fernando Marcos Brignoli , Michel Esper Neto , Raphaela Mulato Cavalcante , Antonio Carlos Saraiva da Costa , Dimas Augusto Morozin Zaia , Tadeu Takeyoshi Inoue , Marcelo Augusto Batista

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引用次数: 0

Abstract

Nanomaterials composed of non-nutritive elements are gaining momentum in agriculture. In view of these advances, this study aimed to synthesize and assess the effects of silver (Ag) and cobalt (Co) nanoparticles as seed treatment in maize crops. Nanoparticles were synthesized by coprecipitation and characterized by X-ray diffractometry, transmission electron microscopy, surface area analysis, and Fourier-transform infrared spectroscopy. An experiment was carried out according to a completely randomized design with a 3 × 5 factorial arrangement. The factors were Ag and Co source (soluble, microparticle, and nanoparticle) and concentration (0, 20, 40, 80, and 160 mg L⁻¹). A total of 50 maize seeds were used per treatment. Seeds were placed on germination paper moistened with distilled water. Germination, biometric parameters (root and shoot lengths), and biomass production were evaluated. Characterization analyses showed that particles ranged from 20 to 100 nm in size and were composed of oxides, such as Ag₂O and Co₃O₄. Nanoparticle treatment improved germination and reduced the incidence of defects. The best results were achieved with 98–106 mg L⁻¹ Ag₂O and 75–80 mg L⁻¹ Co₃O₄. There was no significant change in biometric parameters between treatments.

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银和钴纳米粒子的合成及其对玉米（Zea mays L.）发芽和生物计量参数影响的评估

由非营养元素组成的纳米材料在农业领域的应用日益增多。鉴于这些进展，本研究旨在合成银（Ag）和钴（Co）纳米粒子，并评估其作为玉米作物种子处理剂的效果。纳米粒子通过共沉淀法合成，并通过 X 射线衍射仪、透射电子显微镜、表面积分析和傅立叶变换红外光谱进行表征。实验按照 3 × 5 因子排列的完全随机设计进行。因子为 Ag 和 Co 的来源（可溶性、微粒子和纳米粒子）和浓度（0、20、40、80 和 160 mg L-1）。每个处理共使用 50 粒玉米种子。种子放在用蒸馏水浸湿的发芽纸上。对发芽率、生物计量参数（根长和芽长）以及生物量产量进行了评估。表征分析表明，颗粒大小从 20 纳米到 100 纳米不等，由 Ag2O 和 Co3O4 等氧化物组成。纳米颗粒处理提高了发芽率，降低了缺陷发生率。98-106 mg L-1 Ag2O 和 75-80 mg L-1 Co3O4 的效果最好。不同处理之间的生物计量参数没有明显变化。

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来源期刊

Ecotoxicology and Environmental Safety 环境科学-毒理学

CiteScore

12.10

自引率

5.90%

发文量

1234

审稿时长

88 days

期刊介绍： Ecotoxicology and Environmental Safety is a multi-disciplinary journal that focuses on understanding the exposure and effects of environmental contamination on organisms including human health. The scope of the journal covers three main themes. The topics within these themes, indicated below, include (but are not limited to) the following: Ecotoxicology、Environmental Chemistry、Environmental Safety etc.