罗丹明
斯托克斯位移
荧光
罗丹明B
光化学
共轭体系
材料科学
波长
纳米技术
光电子学
化学
光学
发光
有机化学
光催化
聚合物
物理
复合材料
催化作用
作者
Long He,Jing Huang,Xingxing Zhang,Tian‐Bing Ren,Lin Yuan
标识
DOI:10.1002/cptc.202400191
摘要
Abstract Rhodamine dyes have been extensively explored for bioimaging and therapeutic applications over the past few decades. However, it remains a challenge to design long‐wavelength and large Stokes shift rhodamine derivatives to meet the requirements of fluorescence imaging and phototherapy in deep living tissues. In this work, a pyridine aromatic unit was inserted into the rhodamine derivatives (AC‐Fluor: ACF) skeleton to prepare a series of stable rhodamine derivatives, named ACFPs, to achieve long emission wavelength (>650 nm) and large Stokes shift (~60 nm) by tuning the conjugated systems and electronic symmetry. Moreover, ACFPs are capable of continuously producing superoxide radical (O 2 − ⋅) under long wavelength irradiation. This study presents a novel paradigm for improving the optical properties of rhodamine, which has led to the development of a novel tool for image‐guided phototherapy for cancer treatment.
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