کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1413900 1508876 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photoluminescent carbon dots directly derived from polyethylene glycol and their application for cellular imaging
ترجمه فارسی عنوان
نقاط کوانتومی فوتولومینسنت به طور مستقیم از پلی اتیلن گلیکول و کاربرد آنها برای تصویربرداری سلولی حاصل می شود
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی

Photoluminescent carbon dots (C-dots) were prepared directly by a simple hydrothermal treatment using polyethylene glycol with different molar weight (400–6000 g mol−1) as the sole carbon source. The synthesized C-dots with tunable diameters of 2–4 nm exhibit excitation-dependent photoluminescent behavior. In contrast to previous methods, neither strong acid treatment nor further surface modification is necessary for this one-step process. The C-dots with well-defined surface chemistry and properties were well-dispersed in aqueous media and showed high photostability indicating they are suitable for use in different pH and NaCl aqueous solutions. The C-dots possessed low cytotoxicity, good photostability and can enter the cancer cells, making them suitable candidates for two-photon cellular imaging and labelling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 71, May 2014, Pages 87–93
نویسندگان
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