| 武玥,王施晗,宿欣瑶,代佳珍,马明月,彭微,罗利霞,李淑荣,孟佩俊.化学通报,2026,89(5):597-606. |
| NaYF4:Yb,Er@CB上转换纳米功能材料的制备与条件优化 |
| Preparation and Condition Optimization of NaYF4:Yb,Er@CB Upconversion Nanomaterials |
| 投稿时间：2025-11-04 修订日期：2026-01-28 |
| DOI： |
| 中文关键词: 稀土掺杂上转换纳米材料 葫芦脲；溶剂热法 配体交换法；条件优化 |
| 英文关键词:Rare earth-doped upconversion nanomaterials,Cucurbituril,Solvothermal method,Ligand exchange,Process optimization |
| 基金项目:国家自然科学基金项目(82360656,81960601)、内蒙古自治区高等学校青年科技英才支持项目(NJYT23026)、内蒙古自治区自然科学基金项目(2023MS08009,2025LHMS08034)和包头医学院公共卫生与预防医学博士点建设专项科学研究基金项目(BYJJ-GWZX202508)资助 |
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| 中文摘要: |
| 稀土掺杂上转换纳米材料(REEs-UCNPs)的应用已成为生物医学领域研究热点之一,但其表面修饰与功能化仍是关键挑战。本研究通过溶剂热法合成油溶性上转换纳米颗粒NaYF4: Yb, Er,进而利用葫芦脲(CB)修饰该纳米颗粒,合成了CB包覆的NaYF4:Yb,Er@CB。通过TEM、XRD、FTIR、荧光光谱等表征,系统研究了前体(NaYF4:Yb,Er)是否去油、CB用量、反应温度、反应时间及光照条件等对材料性能的影响。结果表明,在反应温度25°C、反应时间24h、CB[6]掺杂量0.67mmol/L(绝度量为0.01mmol)的避光条件下,合成的NaYF4:Yb,Er@CB荧光强度高、结晶度高、形貌良好、稳定性好,在光照下仍能保持85%以上的上转换发光性能。该研究为开发高效、稳定的多功能上转换纳米平台奠定了坚实基础。 |
| 英文摘要: |
| Rare-earth-doped upconversion nanoparticles(REEs-UCNPs) have emerged as a research focus in the biomedical field, but their surface modification and functionalization remain challenging. In this study, oleate-capped NaYF4:Yb,Er nanoparticles were synthesized via a solvothermal method and subsequently modified with cucurbituril (CB[6]), yielding CB[6]-coated NaYF4:Yb,Er@CB[6] nanocomposites. The effects of precursor(NaYF4:Yb,Er) oleate removal, CB[6] dosage, reaction temperature, reaction time, and light conditions on material properties were systematically studied through TEM, XRD, FTIR, and photoluminescence spectroscopy characterization. The results showed that the optimal conditions were: reaction temperature of 25 °C, reaction time of 24 hours, CB[6] doping amount of 0.67mmol/L(absolute amount of 0.01mmol), and avoidance of light. Under these conditions, the NaYF4:Yb,Er@CB[6] synthesized had high fluorescence intensity, high crystallinity, good morphology, and good stability, and could still maintain over 85% upconversion luminescence performance under light irradiation. This study has laid a solid foundation for the development of efficient and stable multifunctional upconversion detection nanoplatforms. |
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