Fabrication of fluorescent hybrid nanomaterials based on carbon dots and its applications for improving the selective detection of Fe (III) in different matrices and cellular imaging
| Autor: | Dongyue Zhang, Jianshu Li, Hetao Chu, Huilin Xu, Yalin Zhu, Huijuan Cai |
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| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Biocompatibility Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences Analytical Chemistry Nanomaterials chemistry.chemical_compound Quantum Dots Hydrothermal synthesis Instrumentation Spectroscopy Fluorescent Dyes Detection limit Chemistry Buffer solution 021001 nanoscience & nanotechnology Fluorescence Carbon Atomic and Molecular Physics and Optics Nanostructures 0104 chemical sciences Spectrometry Fluorescence Linear range 0210 nano-technology |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 246:119033 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2020.119033 |
| Popis: | Considering that detection on cations or ions still meets some challenges in achieving the effectivity and selectivity just by employing one platform, the ingenious fabrication of nanomaterials exhibits an increasing research interests for the preponderance in improving or integrating the performance of single platform. Herein, a fluorescent hybrid nanomaterials based on an organic dye 4-methylumbelliferone (4-MU) as modifier and D-arginine as carbon cores has been developed via a facile one-step hydrothermal synthesis, forming carbon dots (CDs)/4-MU hybrid nanomaterials (CDs-4-MU). This kind of nanomaterials can improve the sensitive and selective detection of single CDs towards Fe3+ ions in different matrices. The detection mechanism of CDs-4-MU towards Fe3+ can be attributed to an electron transfer process between CDs-4-MU and Fe3+, leading to the fluorescence quenching. The limit of detection (LOD) and corresponding linear range in tris-HCl buffer solution are 0.68 μM and 2.29–200 μM, respectively. Furthermore, this nanomaterial can also achieve a detection of Fe3+ ions in real samples such as tap water, culture medium and fetal bovine serum. In particular, CDs-4-MU exhibits a good biocompatibility and can be uptaken by MC3T3 cells, thus can be applied for Fe3+ ions detection in cellular level and cellular imaging. Therefore, this work provides a versatile strategy for the synthesis of CDs-based hybrid nanomaterials and opens a new pathway for improving the ion detection in real samples, which is of significance in practical applications. |
| Databáze: | OpenAIRE |
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