کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1243314 1495776 2016 10 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
A dual-purpose silver nanoparticles biosynthesized using aqueous leaf extract of Detarium microcarpum: An under-utilized species
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A dual-purpose silver nanoparticles biosynthesized using aqueous leaf extract of Detarium microcarpum: An under-utilized species
چکیده انگلیسی


• Green synthesis of silver nanoparticles carried out.
• Indigenous Detarium mirocarpum leave extract gave good yield of AgNPs.
• Spectroscopic characterizations of DAgNPs carried out.
• DAgNPs produced excellent antioxidant properties.
• DAgNPs sensitively determined Hg2+ and Fe3+.

The need for green synthesis of emerging industrial materials has led to the biosynthesis of nanoparticles from plants to circumvent the adverse by-products of chemical synthesis. In this study, the leaf extract of Detarium mirocarpum Guill & Perr, a small tree belonging to the family Fabaceae (Legume), was used to synthesize silver nanoparticles (DAgNPs). DAgNPs were characterized using spectroscopic techniques (Ultraviolet-Visible spectroscopy and Fourier Transform Infrared spectroscopy) which showed hydroxyl and carbonyl functional groups to be responsible for their synthesis. DAgNPs were observed to be crystalline and spherical. The average size, determined by transmission electron microscopy (TEM) was 17.05 nm. The antioxidant activity of DAgNPs ranked from moderate to good. The ability of DAgNPs to sense Hg2+ and Fe3+ ions in aqueous medium was also investigated. The quenching of the SPR peak at 430 nm was used to monitor the toxic and heavy metal ions with linear ranges of 20–70 µg mL−1 and 10–40 µg mL−1 for Hg2+ and Fe3+, respectively. The limit of detection (LOD) and limit of quantification (LOQ) obtained for Hg2+ was 2.05 µg mL−1 and 6.21 µg mL−1, respectively and for Fe3+ was 5.01 µg mL−1 and 15.21 µg mL−1, respectively. The intra- and inter-day assessments of accuracy and repeatability gave relative errors less than 1% in all instances. DAgNPs can therefore provide a convenient method of sensing the toxic metals easily.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 160, 1 November 2016, Pages 735–744
نویسندگان
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