An eco-friendly route of γ-Fe₂O₃ nanoparticles formation and investigation of the mechanical properties of the HPMC-γ-Fe₂O₃ nanocomposites

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• 作者：Joy Sarkar ; Md. Masud Rahaman Mollick…
• 关键词：Biosynthesis ; γ ; Fe2O3 nanoparticles ; HPMC ; nano composite films ; Mechanical properties ; Spectroscopy
• 刊名：Bioprocess and Biosystems Engineering
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：40
• 期：3
• 页码：351-359
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Biotechnology; Industrial and Production Engineering; Environmental Engineering/Biotechnology; Industrial Chemistry/Chemical Engineering; Food Science;
• 出版者：Springer Berlin Heidelberg
• ISSN：1615-7605
• 卷排序：40

文摘

In recent times, biosynthetic approaches toward the synthesis of nanoparticles have been shown to have several advantages over physical and chemical methods. Here, we report the extracellular mycosynthesis of γ-Fe₂O₃ nanoparticles by Alternaria alternata. The fungal biomass when exposed to aqueous iron(III) chloride solution led to the formation of highly stable γ-Fe₂O₃ nanoparticles extracellularly. The influence of these biosynthesized γ-Fe₂O₃ nanoparticles on the properties of hydroxyl propyl methyl cellulose was also investigated. Characterization of the biosynthesized γ-Fe₂O₃ nanoparticles and HPMC-γ-Fe₂O₃ nanocomposite films were done by the different types of spectral and electron microscopic analysis. The size of the γ-Fe₂O₃ nanoparticles ranges from 75 to 650 nm. The mechanical effect of the agglomerated γ-Fe₂O₃ nanoparticles into the HPMC polymer matrix was also investigated.