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Electron microscopy characterization of biosynthesized iron oxide nanoparticles
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In this paper, the authors used electron transmission microscopy techniques to locate the nanoparticles, which were then characterized using EDS and HRTEM, using the HAADF (Z contrast) technique.Abstract:
We biosynthesized iron oxide nanoparticles with four different pH in the solution to see its influence in the oxides obtained. This method allowed for generating aggregates of 1–10 nm, and under optimal conditions (pH=10) we could control the size in the range of 1–4 nm. With the purpose to analyze the biosynthesized iron oxide clusters we employed electron transmission microscopy techniques. Because the biosynthetic method with alfalfa has been used, the presence of the biomass, which is dense and within which are contained the nanoparticles, makes their observation difficult. Using the HAADF (Z contrast) technique it is possible to locate the nanoparticles, which are then characterized using EDS and HRTEM.read more
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Green synthesis of metal nanoparticles using plants
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Nanoparticulate material delivery to plants
TL;DR: The delivery of nanoparticulate materials to plants and their ultimate effects are reviewed to provide some insights for the safe use of this novel technology for the improvement of crops.
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‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediation
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Methods and strategies for the synthesis of diverse nanoparticles and their applications: a comprehensive overview
Chetna Dhand,Neeraj Dwivedi,Xian Jun Loh,Alice Ng Jie Ying,Navin Kumar Verma,Roger W. Beuerman,Rajamani Lakshminarayanan,Seeram Ramakrishna +7 more
TL;DR: A comprehensive overview on various physical, chemical and bio-assisted methods largely employed to synthesize and fabricate NPs of varying size, surface characteristics, functionalities and physicochemical behavior is provided in this paper.
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Green Synthesis of Iron Nanoparticles and Their Environmental Applications and Implications
TL;DR: An overview of various reports of green synthesised zero valent metallic iron (ZVMI) and iron oxide (Fe2O3/Fe3O4) nanoparticles (NPs) and highlights their substantial applications in environmental pollution control.
References
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Journal ArticleDOI
Monodisperse MFe2O4 (M = Fe, Co, Mn) Nanoparticles
Shouheng Sun,Hao Zeng,David B. Robinson,Simone Raoux,Philip M. Rice,Shan X. Wang,Guanxiong Li +6 more
TL;DR: As-synthesized iron oxide nanoparticles have a cubic spinel structure as characterized by HRTEM, SAED, and XRD and can be transformed into hydrophilic ones by adding bipolar surfactants, and aqueous nanoparticle dispersion is readily made.
Journal ArticleDOI
Preparation of aqueous magnetic liquids in alkaline and acidic media
TL;DR: In this article, the results of work on the preparation of aqueous magnetic liquids without using organic stabilizing agents are presented, and the results are compared to those of the same authors.
Journal ArticleDOI
The preparation of magnetic nanoparticles for applications in biomedicine
Pedro Tartaj,María del Puerto Morales,Sabino Veintemillas-Verdaguer,T. González-Carreño,Carlos J. Serna +4 more
TL;DR: In this article, a review of state-of-the-art synthetic routes for the preparation of magnetic nanoparticles useful for biomedical applications is presented, with a special emphasis on showing the benefits of using nanoparticles.
Journal Article
The preparation of magnetic nanoparticles for applications in biomedicine : Biomedical applications of magnetic nanoparticles
Pedro Tartaj,María del Puerto Morales,Sabino Veintemillas-Verdaguer,T. González-Carreño,Carlos J. Serna +4 more
TL;DR: In this paper, a review of state-of-the-art synthetic routes for the preparation of magnetic nanoparticles useful for biomedical applications is presented, with a special emphasis on showing the benefits of using nanoparticles.
Journal ArticleDOI
Biosynthesis of silver and gold nanoparticles by novel sundried Cinnamomum camphora leaf
Jiale Huang,Qingbiao Li,Daohua Sun,Yinghua Lu,Yuanbo Su,Xin Yang,Huixuan Wang,Yuanpeng Wang,Wenyao Shao,Ning He,Jinqing Hong,Cuixue Chen +11 more
TL;DR: In this article, a sundried biomass of Cinnamomum camphora leaf with aqueous silver or gold precursors at ambient temperature was used for simple synthesis of nanoparticles.