کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1882958 | 1043272 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of a new electrically conducting nanosized Ag-polyaniline-silica complex using γ-radiolysis and its biosensing application
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, a new electrically conducting nanosized Ag-PANI-silica complex, in which nano-silver is bound to silica and polyaniline (PANI), has been synthesized by using γ-irradiation at room temperature and not by using polyvinylpyrrolidone (PVP) as a colloidal stabilizer. The conductivity of nanosized Ag-PANI-silica complex was determined by using the Van der PauW method, and the complex turned out to have a high semi-conductivity (200 S/cm). The optical property and morphology were characterized by using a UV-vis spectrophotometer, field emission-scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). The optical absorption bands of UV-vis analysis revealed a peak at 262, 368, and a slowly decreasing band at 600-800 nm originating from the a nanosized Ag-PANI-silica complex. FE-SEM and TEM showed that the nanosized Ag-PANI-silica complex has a particle size ranging from 10 to 30 nm and high stability. The nano-complex prepared by γ-irradiation can be applicable to be used as biosensor materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 79, Issue 8, August 2010, Pages 894-899
Journal: Radiation Physics and Chemistry - Volume 79, Issue 8, August 2010, Pages 894-899
نویسندگان
Hwa-Jung Kim, Sang Hyun Park, Hae-Jun Park,