Outright Green Synthesis of Fluorescent Carbon Dots from Eutrophic Algal Blooms for In Vitro Imaging
| Autor: | Senthil Kumar Thiyagarajan, Perumal Ramamurthy, Kaviyarasan Raji, Rajkumar Sekar, Ragupathy Suresh, Vadivel Ramanan |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Photoluminescence Biocompatibility Renewable Energy Sustainability and the Environment General Chemical Engineering Quantum yield chemistry.chemical_element Nanotechnology 02 engineering and technology General Chemistry Nanosecond 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Fluorescence 0104 chemical sciences chemistry Zeta potential Environmental Chemistry 0210 nano-technology Luminescence Carbon |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 4:4724-4731 |
| ISSN: | 2168-0485 |
| Popis: | Carbon dots (CDs) synthesized from biological sources have attracted much interest in bioimaging and biomedical applications due to their excellent biocompatibility, and thus, a facile synthesis of CDs with high fluorescence quantum yield (QY) is requisite for practical applications. In this work, we report a simple, rapid, and green approach to synthesize photoluminescent CDs using eutrophic algal blooms as the carbon source. This method offers a possibility for large scale production of highly luminescent CDs (QY = 13%) with the average particle size ∼8 nm. These CDs are highly water-soluble and exhibit nanosecond fluorescence lifetime with high photostability, luminescence stability in different environments, low cytotoxicity, and excellent cell permeability. Laser scanning confocal microscopy shows the uptake of CDs by MCF-7 cells, and the destined application of these CDs as a potential biomarker is demonstrated. |
| Databáze: | OpenAIRE |
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