作者:Wei Ren、Shiqing Chen、Shumu Li、Yangyang Zhang、Jianan Liu、Ming Guan、Hui Yang、Na Li、Chao Han、Tuo Li、Zhenwen Zhao、Jiechao Ge
DOI:10.1002/chem.201804436
日期:2018.10.22
was successfully applied to enhance the PL intensity of CDs dramatically up to 69 times by surfactants at room temperature for the first time. Furthermore, the mechanism of surfactant‐induced PL enhancement of CDs was investigated and in vivo bioimaging was performed. The results demonstrated that electrostatic/non‐electrostatic interactions between CDs and surfactants could effectively lower the vibration
在过去的十年中,由于荧光碳点(CD)独特的光致发光(PL)特性,人们对此给予了越来越多的关注。随着合成方法的逐步发展,已经开发了许多后功能化策略来增强CD的PL。但是,在大多数情况下,通过多步修改过程,PL增强不到10倍。在这项工作中,成功地应用了一种简便而有效的后功能化策略,首次通过表面活性剂在室温下将CD的PL强度显着提高了69倍。此外,研究了表面活性剂诱导的CD增强PL的机制,并进行了体内生物成像。结果表明,CD与表面活性剂之间的静电/非静电相互作用可有效降低CD的振动和旋转,增加辐射衰减过程,从而增强CD的PL。这一发现可能会为增强CD的PL的策略提供新的见解,从而进一步拓宽CD的潜在应用范围。