Volume 43, Issue 6 pp. 764-768
Communication

Benzo[g]coumarin-benzothiazole hybrid: A fluorescent probe for the detection of amyloid-beta aggregates

Na Hee Kim

Na Hee Kim

Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea

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Youngbuhm Huh

Corresponding Author

Youngbuhm Huh

Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea

Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea

Correspondence

Youngbuhm Huh and Dokyoung Kim, Department of Biomedical Science, Graduate School Kyung Hee University, Seoul 02447, Republic of Korea.

Email: [email protected] and [email protected]

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Dokyoung Kim

Corresponding Author

Dokyoung Kim

Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea

Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea

Center for Converging Humanities, Kyung Hee University, Seoul, Republic of Korea

Medical Research Center for Bioreaction to Reactive Oxygen Species, Biomedical Science Institute, Kyung Hee University, Seoul, Republic of Korea

KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea

Correspondence

Youngbuhm Huh and Dokyoung Kim, Department of Biomedical Science, Graduate School Kyung Hee University, Seoul 02447, Republic of Korea.

Email: [email protected] and [email protected]

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First published: 30 March 2022
Citations: 7

Funding information: Ministry of Health & Welfare, Republic of Korea, Grant/Award Number: HI21C0239; Korea Health Industry Development Institute; Ministry of Education, Grant/Award Number: 2018-R1A6A1A03025124; National Research Foundation

Abstract

Here, we disclose a new turn-on type fluorescent probe (named BCB-1) for the detection of Aβ plaques, which is an essential biomarker in Alzheimer's disease (AD). BCB-1 has a hybrid structure of benzo[g]coumarin and benzothiazole, and it showed significant emission enhancement at the near-infrared (NIR) region when sensing Aβ plaques. BCB-1 also showed high selectivity and sensitivity toward Aβ plaques, and its bio-imaging applicability was confirmed within an AD mouse (5XFAD) brain. We expect our superb AD diagnosis fluorescent probe to be broadly applied in Aβ plaques related clinical and biological studies.

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