کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7839889 | 1505860 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design of hybrid inorganic-organic nanosensor based on Fe3O4 as the core and recovery features
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An efficient way to assemble Fe3O4@SiO2-NH2 nanocomposite has been developed by coupling (3-aminopropyl)trimethoxysilane onto surface of core-shell structure through facile impregnation of Fe3O4@SiO2 decorated with amino groups. The key step during the synthesis involves the incorporation of organic fluorophore and amines are treated with 1,8-naphthalic anhydride. The achieved hybrid inorganic-organic nanoparticle gives rise to blue emissions and shows enough stability. Furthermore, Cu2+ can be recognized by the organic building block via coordination reaction and the “on-off” quenching effect is observed. The nanosensor provides a response concentration range (1-6â¯Î¼M) to Cu2+ with the detection limit of 0.65â¯Î¼M. Owing to the magnetic properties, the hybrid nanoprobe can be easily retrieved from aqueous solution for repeated uses via magnetic separation (35â¯s). This approach will offer an alternative way for designing novel detection systems in biological related fields.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 202, October 2018, Pages 502-507
Journal: Journal of Luminescence - Volume 202, October 2018, Pages 502-507
نویسندگان
Nengtao Wu, Yiping Tang, Min Zeng, Jinwei Gao, Xubing Lu, Yuhui Zheng,