通过八极分子的功能调节，显着增强 NIR-II 光催化的多光子捕获金属有机框架。
Dramatically Enhancing Multiphoton Harvesting Metal-Organic Frameworks for NIR-II Photocatalysis through Functional Regulation of Octupolar Molecules.
发表日期：2024 Sep 02
作者：
Luling Zhang, Bo Li, Wenyao Duan, Xianshun Sun, Yuanzhong Kai, Hongping Zhou, Yupeng Tian, Dandan Li
来源：
PHYSICAL THERAPY & REHABILITATION JOURNAL
摘要：
开发用于近红外（NIR）光驱动光催化的有效多光子吸收（MPA）材料具有重要意义。在这项研究中，我们将两种具有不同共轭程度的多支链环金属铱（III）模块结合到 MPA 惰性金属有机框架（MOF）上，以提高 MPA 的性能。随后，MOFs进一步用Co(II)和透明质酸(HA)修饰，分别制备了MINCH和MISCH。通过引入八极分子并扩大共轭，MISCH 表现出更大的 MPA 截面，可实现高效的近红外光吸收和改善的载流子传输，从而实现出色的近红外光驱动的多光子光催化制氢。此外，HA修饰使MISCH能够实现针对癌细胞的特定多光子光催化氢疗法。这项研究为构建用于近红外光驱动光催化的高活性 MPA 材料提供了宝贵的见解，为肿瘤治疗中的氢疗法提供了一个潜在的平台。
The development of effective multiphoton absorption (MPA) materials for near-infrared (NIR) light-driven photocatalysis holds great significance. In this study, we incorporated two multibranched cyclometallated iridium(III) modules with varying degrees of conjugation onto MPA-inert metal-organic frameworks (MOFs) to active MPA performance. Subsequently, the MOFs were further modified with Co(II) and hyaluronic acid (HA) to fabricate MINCH and MISCH, respectively. By introducing octupolar molecules and expanding the conjugation, MISCH exhibited a larger MPA cross section for efficient NIR light absorption and improved carrier transfer, leading to outstanding NIR light-driven multiphoton photocatalytic hydrogen production. Moreover, the HA modification enabled MISCH to achieve specific multiphoton photocatalytic hydrogen therapy for cancer cells. This study provides valuable insights into constructing highly active MPA materials for NIR light-driven photocatalysis, presenting a potential platform for hydrogen therapy in tumor treatment.