北京化工大学吕超团队在一项最新研究中，从定量的角度研究了化学发光共振能量转移效率与给体-受体间距的关系。这一研究成果发表在2021年4月5日出版的国际学术期刊《德国应用化学》上。

在该文中，团队合成了三种具有聚集诱导发射(AIE)特性的四苯乙烯(TPE)锚定的阳离子表面活性剂。研究人员首次定量地证明了化学发光共振能量转移(CRET)效率与鲁米诺供体和TPE受体的间距的六次方成反比。这些细节强有力地证明了CRET也遵循Förster共振理论。

该策略为控制给体-受体间距提供了一个有前景的平台，以方便CRET的跨学科应用。

据了解，自1967年诞生以来，化学发光共振能量转移(CRET)以其独特的特性在各个领域取得了长足的进展。然而，由于难以设计化学发光的供体和受体之间的可变间距，在此之前还没有人确定过CRET效率与供体-受体距离之间的定量关系。

附：英文原文

Title: Chemiluminescence Resonance Energy Transfer Efficiency and Donor–Acceptor Distance: from Qualitative to Quantitative

Author: Chao Lu, Jinhui Lou, Xiaofang Tang, Haoke Zhang, Weijiang Guan

Issue&Volume: 2021-04-05

Abstract: Since its birth in 1967, the utilization of chemiluminescence resonance energy transfer (CRET) has made substantial progress in a variety of fields for its unique features. However, the quantitative relationship between CRET efficiency and donor–acceptor distance has not yet been determined owing to the difficulty in designing the variable lengths between chemiluminescent donors and acceptors. Herein, we synthesized three kinds of tetraphenylethene (TPE)‐anchored cationic surfactants with aggregation‐induced emission (AIE) characteristics. For the first time, it is quantitatively demonstrated that the CRET efficiency is inversely proportional to the sixth power of distance between luminol donors and TPE acceptors. The details disclosed in this contribute have provided the solid evidence that CRET follows Frster resonance theory. Our strategy would build a promising platform to control donor–acceptor distance, allowing to the interdisciplinary applications of CRET.

DOI: 10.1002/anie.202102999

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202102999