کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1643134 1517247 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of biopolymer agar mediated gold nanoparticles
ترجمه فارسی عنوان
سنتز و خصوصی سازی نانوذرات طلا به وسیله آگار بیو پلیمر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی


• Gold nanoparticles were synthesized by agar as a reducing and stabilizing agent.
• UV analysis exhibited characteristic surface plasmonic effect for AuNPs.
• Agar mediated AuNPs were spherical in shape with size of 2–20 nm.
• XRD pattern of exhibited four characteristic gold peaks.

Gold nanoparticles (AuNPs) were prepared by reducing AuCl3 using agar as a reducing and stabilizing agent. The formation of AuNPs was evidenced by strong absorption peak at 534–543 nm caused by the characteristic surface plasmon resonance (SPR) of gold nanoparticle. Height of SPR peak increased with increase in the concentration of AuCl3. The AuNPs observed with TEM were spherical in shape with particle size of 2–20 nm. The presence of elemental gold was also confirmed by EDX analysis. The XRD pattern of the AuNPs exhibited four characteristic peaks of gold at 38.2, 44.4, 64.6, and 77.8° of 2θ corresponding to the face centered cubic (fcc) structure of crystalline AuNPs with (1 1 1), (2 0 0), (2 2 0), and (3 1 1) planes of gold, respectively. These results confirmed that natural biopolymer agar had potential to be used as a reducing and stabilizing agent for AuNPs.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 141, 15 February 2015, Pages 114–117
نویسندگان
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