کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1619783 1005724 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of protoporphyrin coated superparamagnetic iron oxide nanoparticles via dopamine anchor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Synthesis of protoporphyrin coated superparamagnetic iron oxide nanoparticles via dopamine anchor
چکیده انگلیسی

Dopamine conjugated protoporphyrin, PPD, was prepared by the coupling reaction of protoporphyrin IX and dopamine in the presence of dicyclohexylcarbodiimide (DCC) and N-hydroxysuccinimide (NHS) in DMF. The crude product was washed with ethanol–cyclohexane (1:1) mixture to remove dicyclohexylurea (DCU). Previously prepared Fe3O4 nanoparticles were coated with PPD (sub-7 nm monosize) by sonication in the methanol. The porphyrin coated Fe3O4 nanoparticles, PPDNP were separated by permanent magnet. The microstructure and magnetic properties of magnetic nanoparticles were characterized by XRD, TEM, FT-IR, and VSM. It is found that the nanoparticles have high crystallinity with distinct lattices and the magnetic measurements reveal their well-defined superparamagnetic behavior at room temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 502, Issue 2, 23 July 2010, Pages 439–444
نویسندگان
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