高等学校化学学报2025，Vol.46Issue(12)：16-23,8.DOI:10.7503/cjcu20250237
基于多面体低聚倍半硅氧烷的有机-无机杂化纳米复合材料用于锌离子荧光传感器
Organic-inorganic Hybrid Nanocomposite from Polyhedral Oligomeric Silsesquioxane as a Fluorescent Sensor for Zn2+Ions
摘要
Abstract
In this study,a novel organic-inorganic hybrid fluorescent sensor was designed and synthesized using salicylaldehyde and polyhedral oligomeric silsesquioxane(POSS)as raw materials.Through the reaction of salicylaldehyde with POSS-NH2,POSS-Sa with a salicylaldehyde-Schiff base structure was obtained,and its structure was characterized by Fourier transform infrared spectroscopy(FTIR),ultraviolet-visible spectroscopy(UV-Vis),and nuclear magnetic resonance spectroscopy(NMR).The results revealed that the fluorescence efficiency of POSS-Sa significantly increased in the presence of zinc ions(Zn²⁺).As the concentration of Zn²⁺ increased,the fluorescence intensity of POSS-Sa gradually enhanced.Within a certain concentration range,the fluorescence intensity exhibited a linear relationship with Zn²⁺ concentration,following the calibration curve of y=10.31x+455.38(R²=0.997).The linear detection range was 0.5-50×10⁻⁷ mol/L,with a detection limit of 1×10⁻⁸ mol/L.This sensor demonstrated high selectivity and sensitivity toward Zn²⁺ and was successfully applied to the detection of Zn²⁺ in food samples,showing high recovery rates.Additionally,due to its good biocompatibility,the sensor holds potential for Zn²⁺ detection in food samples and in vitro cellular environments.关键词
多面体低聚倍半硅氧烷/锌离子/荧光探针/水杨醛-席夫碱Key words
Polyhedral oligomeric silsesquioxane/Zn2+/Fluorescent probe/Salicylaldehyde Schiff分类
化学化工引用本文复制引用
姜维娜,姜海建,周惠,成伟唯..基于多面体低聚倍半硅氧烷的有机-无机杂化纳米复合材料用于锌离子荧光传感器[J].高等学校化学学报,2025,46(12):16-23,8.基金项目
江苏省高等学校自然科学研究面上项目(批准号:20KJD430008)资助. Supported by the Natural Science Foundation of the Jiangsu Higher Education Institutions,China(No.20KJD430008). （批准号:20KJD430008）
