Abhimanyu Pawar, Kishor Naktode, Arvind Mungole, Santosh Gaikwad, Dalesh M. Parshuramkar, Chandrashekhar P. Pandhurnekar, Junaid Gulzar, Mithul V Mammen, Akhtar Rasool
{"title":"Plant-mediated synthesis of ZnO nanoparticles using Rumex nepalensis extract and physicochemical characterization and biological applications","authors":"Abhimanyu Pawar, Kishor Naktode, Arvind Mungole, Santosh Gaikwad, Dalesh M. Parshuramkar, Chandrashekhar P. Pandhurnekar, Junaid Gulzar, Mithul V Mammen, Akhtar Rasool","doi":"10.1007/s00114-026-02161-9","DOIUrl":null,"url":null,"abstract":"<div><p>Green synthesis has emerged as a sustainable and environmentally friendly strategy for the rapid production of nanoparticles. Zinc oxide (ZnO) nanoparticles were synthesized using <i>Rumex nepalensis</i> (Spreng.) leaf extract, which served as a natural reducing and stabilizing agent. This eco-friendly synthesis approach provides an alternative to conventional chemical methods by avoiding the use of toxic chemicals and minimizing environmental hazards. Structural analysis using X-ray diffraction (XRD) confirmed the formation of ZnO nanoparticles with a hexagonal wurtzite crystalline structure. Fourier-transform infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDX) further verified the presence of Zn–O bonds and indicated a high degree of elemental purity. Morphological characterization through scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that the nanoparticles were mainly spherical in shape, with particle sizes ranging from approximately 11 to 13 nm. Optical analysis using UV–Visible spectroscopy showed a band gap energy of 3.26 eV, confirming the semiconducting properties of the synthesized nanoparticles. ZnO nanoparticles demonstrated significant antibacterial activity against human pathogenic bacteria, highlighting their potential as effective antimicrobial agents. The strong antioxidant activity was observed, indicating their capability to scavenge free radicals and mitigate oxidative stress, the results confirm the successful green synthesis of ZnO nanoparticles using <i>R. nepalensis</i> extract and emphasize their structural stability, biocompatibility, and diverse biological activities. These findings suggest promising applications of the biogenic ZnO nanoparticles in biomedical, cosmetic, and industrial fields, further supporting the role of green nanotechnology in the development of sustainable nanomaterials.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"113 5","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Science of Nature","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s00114-026-02161-9","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Green synthesis has emerged as a sustainable and environmentally friendly strategy for the rapid production of nanoparticles. Zinc oxide (ZnO) nanoparticles were synthesized using Rumex nepalensis (Spreng.) leaf extract, which served as a natural reducing and stabilizing agent. This eco-friendly synthesis approach provides an alternative to conventional chemical methods by avoiding the use of toxic chemicals and minimizing environmental hazards. Structural analysis using X-ray diffraction (XRD) confirmed the formation of ZnO nanoparticles with a hexagonal wurtzite crystalline structure. Fourier-transform infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDX) further verified the presence of Zn–O bonds and indicated a high degree of elemental purity. Morphological characterization through scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that the nanoparticles were mainly spherical in shape, with particle sizes ranging from approximately 11 to 13 nm. Optical analysis using UV–Visible spectroscopy showed a band gap energy of 3.26 eV, confirming the semiconducting properties of the synthesized nanoparticles. ZnO nanoparticles demonstrated significant antibacterial activity against human pathogenic bacteria, highlighting their potential as effective antimicrobial agents. The strong antioxidant activity was observed, indicating their capability to scavenge free radicals and mitigate oxidative stress, the results confirm the successful green synthesis of ZnO nanoparticles using R. nepalensis extract and emphasize their structural stability, biocompatibility, and diverse biological activities. These findings suggest promising applications of the biogenic ZnO nanoparticles in biomedical, cosmetic, and industrial fields, further supporting the role of green nanotechnology in the development of sustainable nanomaterials.
期刊介绍:
The Science of Nature - Naturwissenschaften - is Springer''s flagship multidisciplinary science journal. The journal is dedicated to the fast publication and global dissemination of high-quality research and invites papers, which are of interest to the broader community in the biological sciences. Contributions from the chemical, geological, and physical sciences are welcome if contributing to questions of general biological significance. Particularly welcomed are contributions that bridge between traditionally isolated areas and attempt to increase the conceptual understanding of systems and processes that demand an interdisciplinary approach.