新型PPi的荧光探针制备及其在水样中的手机智能识别和生物成像应用
肖嘉扬 , 朱砚山 , 徐艺 , 李杰 , 吕琳 , 高云 , 高妍
现代化工 ›› 2026, Vol. 46 ›› Issue (3) : 242 -247.
新型PPi的荧光探针制备及其在水样中的手机智能识别和生物成像应用
Preparation of a novel fluorescent probe for PPi and its application in smartphone-based intelligent recognition in water samples and bioimaging
焦磷酸盐(PPi)是一种重要的阴离子,可参与生物体中新陈代谢和能量转换过程,PPi含量的监测对于疾病的早期预防和诊断有着重要作用。利用4-甲酰基-3-羟基-N-丁基-1,8-萘酰亚胺与5-胺基四氮唑为原料经缩合反应合成新型配体NRC,进一步与Fe3+配位原位制备可用于检测PPi的铁配合物NRC-Fe3+。利用HR-MS考察了探针NRC-Fe3+识别PPi的响应机制。探针NRC-Fe3+识别PPi的最低检测限为8.05 nmol/L。采用溶液比色法和探针试纸,实现了实际水样中PPi的定量评价,并采用基于NRC-Fe3+试纸的手机智能识别测定实际水样中PPi的含量,结果证明探针NRC-Fe3+可对实际水样中PPi进行快速实时检测。该探针对PPi的识别具有响应速度快(40 s)、抗干扰性强、毒性小等优点,已成功用于活鼠中对外源性PPi的生物成像研究。
Pyrophosphate (PPi) is an important anion which can participate in the metabolism and energy conversion process in organisms,and the monitoring of PPi content is important for the early prevention and diagnosis of diseases.In this paper,a novel ligand NRC was synthesized by condensation reaction of 4-formyl-3-hydroxy-N-butyl-1,8-naphthalimide with 5-aminotetrazole,and then a fluorescence probe NRC-Fe3+ was prepared by the coordination of NRC with Fe3+.The response mechanism of NRC-Fe3+ for PPi was investigated by HR-MS.The detection limit of PPi recognition by the ligand NRC-Fe3+ was 8.05 nmol/L.The quantitative evaluation of PPi in buffer solution was realized by solution colorimetry and probe paper.Using smartphone-based intelligent recognition with NRC-Fe3+ test strips to determine the content of PPi in actual water sample,and the results demonstrated that the probe NRC-Fe3+ enables rapid quantitative detection of PPi in actual water sample.The probe NRC-Fe3+ has the advantages of rapid response (40 s),strong anti-interference and low toxicity,and has been successfully used in the bioimaging study of exogenous PPi in living mice.
萘酰亚胺 / 手机智能识别 / 生物成像 / 荧光探针 / 焦磷酸盐 / 铁配合物
naphthalimide / smart phone recognition / bioimaging / fluorescent probe / pyrophosphate / iron complex
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国家自然科学基金项目(U1910215)
辽宁省自然科学基金面上项目(2024LNYKJ27)
国家级大学生创新创业训练计划项目(202510146040)
辽宁省大学生创新创业训练计划项目(S202410146065)
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