Eco-friendly synthesis and characterization of copper nanoparticles using Thalassia hemprichii seagrass: Evaluation of antioxidant and antibacterial activities

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-08-29 DOI:10.1016/j.matlet.2025.139404

Murugeswaran Santhiya Selvam , Pious Soris Tresina , Ramakrishnan Rajalakshmi , Solomon Jeeva , L. Rajeshkumar , Veerabahu Ramasamy Mohan

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Abstract

This study investigats the green synthesis of copper nanoparticles (CuNPs) using the aqueous extract from the Thalassia hemprichii, a species of seagrass. Phytochemical analysis of the extract confirmed the presence of various bioactive compounds, including catechins, phenols, quinones, flavonoids, saponins, steroids, tannins, and glycosides. UV–Visible spectroscopy revealed a surface plasmon resonance peak at 277 nm. Fourier-transform infrared spectroscopy confirmed the presence of flavonoids and phenolic compounds. Scanning electron microscopy showed that the CuNPs were spherical in shape, while X-ray diffraction analysis verified their crystalline structure. Atomic force microscopy was used to assess surface topography. The CuNPs exhibited strong antioxidant activity, demonstrated by a high percentage of DPPH radical scavenging. These findings highlight the potential of green-synthesized CuNPs for multifunctional biomedical applications.

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以海草为原料合成纳米铜颗粒及其抗氧化和抗菌活性评价

本研究研究了利用海草Thalassia hemprichii的水萃取物绿色合成铜纳米粒子（CuNPs）。提取物的植物化学分析证实了多种生物活性化合物的存在，包括儿茶素、酚类、醌类、黄酮类、皂苷、类固醇、单宁和苷类。紫外可见光谱显示表面等离子体共振峰位于277 nm处。傅里叶红外光谱证实了黄酮类化合物和酚类化合物的存在。扫描电子显微镜显示其为球形，x射线衍射分析证实了其晶体结构。原子力显微镜用于评估表面形貌。CuNPs具有较强的抗氧化活性，具有较高的DPPH自由基清除率。这些发现突出了绿色合成的CuNPs在多功能生物医学应用方面的潜力。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive