Journal
ACS APPLIED BIO MATERIALS
Volume 3, Issue 1, Pages 505-511Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsabm.9b00946
Keywords
aggregation-induced emission; lipid droplets; lysosome; one-photon/two-photon imaging; indolo[1,2-a]quinoline
Funding
- National Natural Science Foundation of China [U1904172, 21501010, 21971224, 81902356, 21501150]
- China Postdoctoral Science Foundation [2019M652561]
- Key Research Projects of Universities in Henan Province [20A150006]
- Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University [2019GXYSOF12]
- Henan Province Young Talents Elevation Program [2019HYTP023]
- Science and Technology Joint Co -construction Medical Research Project of Henan Health and Family Planning Commission [2018020025]
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Aggregation-induced emission luminogens (AIEgens) with a large electron donor and acceptor (D-A) conjugated system have been widely used in the development of organic light emitting diodes (OLEDs), chemosensors, and bioimaging materials due to their excellent properties such as high quantum yields, long emission wavelengths, controllable luminescence lifetimes, and nonlinear optics (NLO) properties. However, most of the AIE materials have been derived from limited classic AIE cores such as tetraphenylethene (TPE) and tetraphenylpyrazine (TPP), and thus, tedious syntheses or later modifications toward those AIEgens have always been unavoidable. In this report, a type of atypical AIEgens (designated as ASIQs) composed of large conjugated structures with a natural electron D-A system is disclosed, which shows large Stokes shifts, high photostabilities, excellent cell permeabilities, low biotoxicities, and good two-photon excited capacities, making them suitable for applications of one-photon/two-photon targeted imaging in live cells. In short, this work offers a type of atypical AIEgens which will possibly become an ideal platform leading to more structurally diverse and functionally excellent ALE-based luminescent materials.
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