کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5358304 1503617 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
SERS detection of low-concentration adenosine by silver nanoparticles on silicon nanoporous pyramid arrays structure
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
SERS detection of low-concentration adenosine by silver nanoparticles on silicon nanoporous pyramid arrays structure
چکیده انگلیسی
A novel surface-enhanced Raman spectroscopy (SERS) substrate based on uniform silver nanoparticles/silicon nanoporous pyramid arrays (Ag/PS) is prepared and SERS behaviors to adenosine are discussed and compared. With a low concentration of 10−7 M, the characteristic Raman bands of adenosine demonstrate the significantly high SERS sensitivity of the prepared Ag/PS substrate. A reasonable linear correlation is obtained between the intensity of SERS signal and the adenosine concentration from 10−2 to 10−7M in log scale. These results imply that the Ag/PS with regular pyramids array might be an effective substrate for performing label-free sensitive SERS detections of biomolecule.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 347, 30 August 2015, Pages 668-672
نویسندگان
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