Green synthesis of nitrogen and sulfur co-doped carbon dots from Allium fistulosum for cell imaging
Green synthesis of nitrogen and sulfur co-doped carbon dots from Allium fistulosum for cell imaging
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绿色合成葱属氮硫共掺杂碳点用于细胞成像
DOI：
10.1039/c8nj05783d
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发表时间：
2019-01-14
影响因子：
3.3
通讯作者：
Lu, Siyu
中科院分区：
文献类型：
--
作者：
Wei, Zhihong;Wang, Boyang;Lu, Siyu
大自然提供了几乎无限的天然资源，这激励科学家开发具有新应用和更低环境影响的新材料。本文以葱为原料，采用水热法制备了氮硫共掺杂的碳量子点。这些材料表现出很强的荧光，绝对量子产率为10.48%。CD的光致发光在不同pH值、高NaCl浓度和不同金属离子存在下非常稳定，这表明CD即使在恶劣条件下也具有广泛的应用。CD为MCF-7和K562细胞质中的荧光成像提供了选择性光学染色。所制备的CD被探索用于细胞成像，并提供良好的生物相容性。CD的显着性能表明了其在传感和生物应用方面的潜力。
Nature provides an almost limitless supply of natural sources, which inspires scientists to develop new materials with novel applications and lower environmental impact. Here, we prepared nitrogen and sulfur co-doped carbon dots (CDs) by hydrothermal treatment of Allium fistulosum (Af-CDs). These materials exhibited strong fluorescence with an absolute quantum yield of 10.48%. The photoluminescence of the CDs is very stable across different pH values, high NaCl concentrations, and in the presence of different metal ions, suggesting that the CDs have a wide range of applications even under rugged conditions. The CDs offer a selective optical stain for multicolor imaging in MCF-7 and K562 cell cytoplasm. The as-prepared CDs were explored for cell imaging and offer great biocompatibility. The remarkable properties of the CDs indicated their potential toward sensing and bioapplications.