The design and development of novel broad-spectrum tunable photoluminescent materials for security printing with encrypted information is highly desirable. We construct a supramolecular co-assembly platform of amphiphilic cyclodextrin and calixarene, promoting energy transfer among three chromophores that are loaded by non-covalent interactions. A large matrix of colors was realized by delicately tuning the molar ratios of chromophores, which occupies most of the area in the Commission Internationale de l'Eclairage (CIE) chromaticity diagram. The elaborate supramolecular “cocktail” hides a dual-encryption coding, which exhibits feasible application as fluorescent security inks that are difficult to counterfeit but easy to authenticate.

中文翻译：

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基于生色团的超分子颜色可调光致发光材料，用作具有双重加密功能的防伪油墨†

迫切需要设计和开发用于具有加密信息的安全打印的新型广谱可调光致发光材料。我们构建了两亲环糊精和杯芳烃的超分子共组装平台，促进了通过非共价相互作用负载的三个生色团之间的能量转移。通过微调发色团的摩尔比可以实现大的颜色矩阵，发色团占据了国际照明委员会（CIE）色度图中的大部分区域。精心制作的超分子“鸡尾酒”隐藏了双重加密编码，可作为难以伪造但易于认证的荧光安全油墨显示出可行的应用。