کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5187570 | 1381131 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and properties of a novel water-soluble anionic polyfluorenes for highly sensitive biosensors
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new anionic water-soluble polyfluorene-poly(9,9-bis(4â²-sulfonatobutyl)fluorene-co-alt-1,4-phenylene) sodium salt (PFS) was synthesized by Suzuki-coupling reaction. The anionic polyfluorene shows bright blue photoluminescence and it was found the photoluminescence could be highly quenched by a bioactive dye (Lucifer yellow cadaverine biotin-X dipotassium salt). PFS photoluminescence quenching only occurs effectively upon addition of avidin. The photoluminescence quenching process is sensitive to even subnanomolar amount of avidin (10â10Â M). The avidin facilitated photoluminescence quenching opens up opportunities of new ultra-high efficiency and rapid response biosensors based on the polyfluorene electrolyte.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 25, 28 November 2005, Pages 12010-12015
Journal: Polymer - Volume 46, Issue 25, 28 November 2005, Pages 12010-12015
نویسندگان
Fei Huang, Xiaohui Wang, Deli Wang, Wei Yang, Yong Cao,