Periakaruppan Rajiv, Govindharaj Kavya, Martin Joaval Antony, Vijai Selvaraj Karungan Selvaraj, Al-Dayan Noura
Department of Biotechnology, PSG College of Arts & Science, Coimbatore, Tamil Nadu, 641014, India.
Vegetable Research Station, Tamil Nadu Agricultural University, Palur, Cuddalore, 607102, India.
Appl Biochem Biotechnol. 2025 Apr 29. doi: 10.1007/s12010-025-05253-w.
Ulva species is consumed macroalgae, and it has rich polysaccharides. Nanoparticles play an important role in medicine, agriculture, and environment. Extracts from bacteria, algae, and plants can be used for synthesis of nanoparticles fields. The study determines the biogenic synthesis and characterization of iron oxide nanoparticles by U. rigida extract. The size, nature, stability, and composition of green synthesized iron oxide nanoparticles were characterized using UV-Vis, XRD, FTIR, FESEM, EDX, and TGA analysis. UV-Vis and FTIR analysis were performed to determine the surface plasmon resonance and occurrence of functional groups in the U. rigida-mediated iron oxide nanoparticles. FTIR spectra proved the formation of metal oxide functional groups. U. rigida-mediated iron oxide nanoparticles were spherical in shape with the average size of 50-60 nm and confirmed by FESEM analysis. Crystalline nature of U. rigida-mediated iron oxide nanoparticles was synthesized. A weight loss of 30.1% U. rigida-mediated iron oxide nanoparticles was observed in TGA analysis and confirms its high thermal stability. The study reveals that U. rigida extract can be used for stabilizing agents for fabrication of iron oxide nanoparticles. The synthesized iron oxide nanoparticles may be used in wastewater treatment and drug delivery system.
石莼属物种是可食用的大型藻类，且含有丰富的多糖。纳米颗粒在医学、农业和环境领域发挥着重要作用。来自细菌、藻类和植物的提取物可用于纳米颗粒领域的合成。本研究确定了硬石莼提取物对氧化铁纳米颗粒的生物合成及表征。使用紫外可见光谱（UV-Vis）、X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）、场发射扫描电子显微镜（FESEM）、能谱分析（EDX）和热重分析（TGA）对绿色合成的氧化铁纳米颗粒的尺寸、性质、稳定性和组成进行了表征。进行紫外可见光谱和傅里叶变换红外光谱分析以确定硬石莼介导的氧化铁纳米颗粒中的表面等离子体共振和官能团的存在情况。傅里叶变换红外光谱证实了金属氧化物官能团的形成。硬石莼介导的氧化铁纳米颗粒呈球形，平均尺寸为50 - 60纳米，场发射扫描电子显微镜分析证实了这一点。合成了硬石莼介导的氧化铁纳米颗粒的晶体性质。在热重分析中观察到硬石莼介导的氧化铁纳米颗粒失重30.1%，证实了其高热稳定性。该研究表明，硬石莼提取物可用于制备氧化铁纳米颗粒的稳定剂。合成的氧化铁纳米颗粒可用于废水处理和药物递送系统。
