摘要
Abstract
Thiocyanate(SCN⁻)plays a multifaceted role in agriculture,contributing positively to plant nutrition,biological control,and soil improvement.However,thiocyanate is difficult to decompose,and its accumulation can lead to detrimental environmental consequences,including plant toxicity,water resource contamination,and potential impacts on food safety and human health.Therefore,this study utilized the Suzuki coupling reaction to successfully synthesize a phenylpyridine-based AIE fluorescent probe molecule.Its structure was characterized by 1H NMR,and the fluorescent response to SCN⁻ was investigated via fluorescence emission spectroscopy.Inverted fluorescence microscopy and dynamic light scattering experiments revealed that in the presence of SCN-,the probe molecules exhibited aggregation-induced emission enhancement.Analytical findings demonstrated that the probe displayed high selectivity and sensitivity towards SCN⁻,with common bio-related anions showing no interference in SCN-recognition and a linear detection response at certain concentrations.The detection limit was 6.79 μM.Additionally,the enhanced scattered light due to the probe aggregation enabled the semi-quantitative,naked-eye detection of SCN-.This feature holds significant potential in addressing agricultural environmental pollution issues,such as rapid monitoring of soil contamination.关键词
硫氰酸根/Suzuki偶联反应/荧光探针/聚集诱导发光/农业化学Key words
Thiocyanate/Suzuki coupling reaction/fluorescent probe/aggregation-induced emission/agricultural chemistry分类
农业科技
