Sulfur and nitrogen binary doped carbon dots derived from ammonium thiocyanate for selective probing doxycycline in living cells and multicolor cell imaging
| Autor: | Yong Huang, Liangliang Zhang, Mingyue Xue, Shulin Zhao, Zhihua Zhan, Mengbing Zou |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Biocompatibility
Cell Survival Nitrogen Analytical chemistry chemistry.chemical_element Quantum yield 02 engineering and technology 010402 general chemistry 01 natural sciences Citric Acid Analytical Chemistry chemistry.chemical_compound Drug Stability Limit of Detection Humans Fluorescent Dyes Detection limit Aqueous solution Osmolar Concentration Hep G2 Cells Hydrogen-Ion Concentration 021001 nanoscience & nanotechnology Fluorescence Sulfur Carbon Molecular Imaging 0104 chemical sciences chemistry Doxycycline Nanoparticles Ammonium thiocyanate 0210 nano-technology Selectivity Thiocyanates Nuclear chemistry |
| Zdroj: | Talanta. 150:324-330 |
| ISSN: | 0039-9140 |
| Popis: | A novel sulfur and nitrogen binary doped carbon dots (S,N-CDs) was synthesized by one-step manner through the hydrothermal treatment of citric acid (CA) and ammonium thiocyanate, and the procedures for biomedical applications, including probing doxycycline in living cells and multicolor cell imaging were developed. The obtained S,N-CDs are stable in aqueous solution, possess a very high quantum yield (QY, 74.15%) and good photostability. The fluorescence of S,N-CDs can be specifically quenched by doxycycline, providing a convenient turn-off assay of doxycycline. This assay shows a wide linear detection range from 0.08 to 60 μM with a low detection limit of 20 nM. The present method also displays a good selectivity. More importantly, the S,N-CDs have an excellent biocompatibility and low cytotoxicity, allowing the multicolor cell imaging and doxycycline detection in living cells. Consequently, the developed doxycycline methods is facile, low-cost, biocompatible, sensitive and selective, which may hold the potential applications in the fields of food safety and environmental monitoring, as well as cancer therapy and related mechanism research. |
| Databáze: | OpenAIRE |
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