Small·· 7 小时前AI 评分52
多级超分子限域构建可光切换的红至近红外发光组装体
Dynamically Tunable Near‐Infrared Photoluminescence with Long‐Wavelength Energy Transfer Engineered by Multilevel Supramolecular Confinement
AI 导读
研究采用多级限域策略构建超分子光开关：葫芦[8]脲与联苯共轭联吡啶盐先形成2:2主客体复合物，再经带负电的β-环糊精接枝透明质酸进行分子间静电包裹，使650 nm红光发射增强40倍。多糖骨架上的环糊精单元进一步包覆金刚烷修饰的二芳基乙烯，赋予组装体光切换性能，荧光可逆调控且抗疲劳性良好；通过向Cy7的Förster共振能量转移，还可获得790 nm近红外发射。该体系已用于防伪与信息加密。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Small · doi.org
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