| 基于萘酰亚胺结构的条件限制型Fe3+和Cu2+荧光探针 |
| Conditionally restricted fluorescent probe for Fe3+ and Cu2+ based on the naphthalimide structure |
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| 摘要: 为了解决当前重金属荧光探针缺乏在典型缓冲溶液中系统研究的问题，本研究开发了一种基于萘酰亚胺荧光团的Fe3+和Cu2+荧光探针DHU-NP-4。通过对比不同缓冲溶液对探针性能的影响，发现含大量有机成分的缓冲液不适用于评估此类探针，同时溶剂体系的pH值对探针性能具有显著影响。在较高酸性条件下(pH≥2)，DHU-NP-4对Fe3+展现出优异的特异性响应；而在碱性条件下，则对Cu2+显示出高度的特异性。基于这些发现，本研究利用DHU-NP-4实现了溶液中Fe3+和Cu2+的定量检测。 |
| 关键词: 荧光探针 萘酰亚胺 铜离子 铁离子 缓冲溶液 |
| 基金项目: 国家自然科学基金(No.22371038，22177019)资助。 |
| Abstract: To address the lack of systematic studies on heavy metal fluorescent probes in typical buffer solutions, this study developed a Fe3+ and Cu2+ fluorescent probe, DHU-NP-4, based on a naphthalimide fluorophore. Comparative analysis of the probe's performance in various buffer systems revealed that buffers with high organic content are unsuitable for evaluating such probes. Furthermore, the pH of the solvent system was found to significantly influence the probe's behavior. Under highly acidic conditions (pH≥2), DHU-NP-4 exhibited exceptional specificity for Fe3+, while in alkaline conditions, it demonstrated high specificity for Cu2+. Leveraging these properties, the probe enabled the quantitative detection of Fe3+ and Cu2+ in solution. |
| Keywords: fluorescent probe naphthalimide copper(Ⅱ) ion iron(Ⅲ) ion buffer solution |
| 投稿时间：2024-06-22 修订日期：2024-11-26 |
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| 祝愿,张晓达,王莎莎,魏鹏,易涛.基于萘酰亚胺结构的条件限制型Fe3+和Cu2+荧光探针[J].无机化学学报,2025,41(1):183-192. |
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| Support information: 相关附件： 20240232_SI_1126.docx |
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