@article{842028695f3d4b0ba5ebe57c5aa3dac5,
title = "A long-lived luminogenic iridium(III) complex for acetylacetone detection in environmental samples",
abstract = "The wide use of acetylacetone (Acac) in industries is fueling the need for the development of Acac detection methods. However, only a few nanomaterial-based fluorescent probes for Acac have been reported, and these probes either lack turn-on detection capability, and/or aqueous compatibility. Herein, a series of iridium(III) dimers were synthesized in one step and screened as luminescent probes for Acac. The candidate probe 8 exhibited a luminescence enhancement of near 160-fold in the presence of Acac in aqueous solution, with a linear relationship of Acac (0.1–10 μM) and a limit of detection (LOD) of 0.043 μM. Mechanistically, the probe chelated with Acac to form a new luminescent complex. Moreover, the long lifetime of probe 8 allowed its response to Acac to be distinguished from fluorescent interference through time-resolved emission spectroscopy (TRES). Probe 8 further demonstrated its practical application as a luminogenic probe for Acac in real water samples. In summary, because probe 8 is very easily prepared and modified compared with existing Acac luminescence probes, it serves as an ideal starting point to develop next-generation luminogenic probes for monitoring Acac in environmental and biological systems.",
keywords = "Acetylacetone, Iridium(III) dimer, Luminogenic probe, Time-Resolved emission spectroscopy",
author = "Wanhe Wang and Yung, {Tsan Ling} and Cheng, {Sha Sha} and Feng Chen and Liu, {Jin Biao} and Leung, {Chung Hang} and MA, {Edmond Dik Lung}",
note = "Funding Information: This research is supported by Hong Kong Baptist University (FRG2/17-18/003), the Health and Medical Research Fund (HMRF/14150561), the National Natural Science Foundation of China ( 21575121 , 21775131 ), the Hong Kong Baptist University Century Club Sponsorship Scheme 2019 , the Interdisciplinary Research Matching Scheme (RC-IRMS/16-17/03), Interdisciplinary Research Clusters Matching Scheme (RC-IRCs/17-18/03), Collaborative Research Fund (C5026-16 G), SKLEBA and HKBU Strategic Development Fund (SKLP_1920_P02), the Science and Technology Development Fund, Macao SAR (File no. 0072/2018/A2), the University of Macau (MYRG2019-00002-ICMS and MYRG2018-00187-ICMS). Funding Information: This research is supported by Hong Kong Baptist University (FRG2/17-18/003), the Health and Medical Research Fund (HMRF/14150561), the National Natural Science Foundation of China (21575121, 21775131), the Hong Kong Baptist University Century Club Sponsorship Scheme 2019, the Interdisciplinary Research Matching Scheme (RC-IRMS/16-17/03), Interdisciplinary Research Clusters Matching Scheme (RC-IRCs/17-18/03), Collaborative Research Fund (C5026-16 G), SKLEBA and HKBU Strategic Development Fund (SKLP_1920_P02), the Science and Technology Development Fund, Macao SAR (File no. 0072/2018/A2), the University of Macau (MYRG2019-00002-ICMS and MYRG2018-00187-ICMS).",
year = "2020",
month = oct,
day = "15",
doi = "10.1016/j.snb.2020.128486",
language = "English",
volume = "321",
journal = "Sensors and Actuators B: Chemical",
issn = "0925-4005",
publisher = "Elsevier B.V.",
}