荧光
次氯酸盐
量子点
罗丹明B
罗丹明
化学
检出限
量子产额
光化学
离子
细胞内
缓冲溶液
发光
核化学
生物化学
纳米技术
无机化学
材料科学
色谱法
光催化
有机化学
光电子学
催化作用
物理
量子力学
作者
Wenjing Liu,Yuying Wang,Na Wu,Wei Feng,Zhanxian Li,Liuhe Wei,Mingming Yu
标识
DOI:10.1016/j.saa.2020.118564
摘要
As momentous reactive oxygen species (ROS), it is necessary to develop high-sensitivity and high-specificity fluorescent probes for tracking hypochlorite anion (ClO−) in environmental and biological systems. Herein, a kind of red luminescent carbon dots (NS-dots) was synthesized by one-step solvothermal method to detect ClO− in PBS buffer solution (VPBS:VEtOH = 100:1, pH = 7.4). The NS-dots has high sensitivity and low detection limit (13.3 μmol/L) for detecting ClO− with linear range from 6.7 × 10−5 mol/L to 26.7 × 10−5 mol/L. Using Rhodamine B (31% at 520 nm in water) as a reference, the NS-dots have a fluorescence quantum yield of 7.2%. Intracellular photostability, mitochondrial targeting properties and the fluorescence imaging towards intracellular ClO− were demonstrated.
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