|
1
|
Zhao C, Yuan P, Wang D, Li S, Yao H, Yang LP, Wang LL, Du F. N-aminomorpholine-functionalized bromine-doped carbon dots for hypochlorous acid detection in foods and imaging in live cells. Food Chem 2024; 441:138284. [PMID: 38181668 DOI: 10.1016/j.foodchem.2023.138284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 12/20/2023] [Accepted: 12/24/2023] [Indexed: 01/07/2024]
Abstract
Hypochlorous acid (HClO) is used in food preservation. However, excessive HClO can deteriorate nutritional composition of food, compromise its quality, and potentially induce various diseases. Consequently, the development of multifunctional fluorescent probes for the sensitive and selective detection of HClO is highly anticipated for food safety. In this work, we designed a nanoprobe using N-aminomorpholine (AM)-functionalized bromine-doped carbon dots (Br-CDs-AM) for sensing HClO. This nanoprobe exhibits pH stability, strong resistance to photobleaching, superior long-term photostability (12 weeks), high sensitivity (19.3 nM), and an ultrarapid response (8 s) for detecting HClO residues in food matrices with percentage recovery (96.5 %-108 %) and RSDs less than 5.34 %. In addition, extremely low cytotoxicity and outstanding biocompatibility enable the nanoprobe to be used primarily for lysosome tracking and rapidly visualizing HClO in live cells. Thus, this study provides a new pathway to design unconventional nanoprobes for food safety assessment and subcellular organelle-specific imaging HClO.
Collapse
Affiliation(s)
- Chengda Zhao
- The Affiliated Nanhua Hospital, Department of Anesthesiology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Pengxiang Yuan
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Dan Wang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Shiyao Li
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Huan Yao
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Liu-Pan Yang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Li-Li Wang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Fangfang Du
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China; Engineering Research Center for Hainan Bio-Smart Materials and Bio-Medical Devices, Key Laboratory of Emergency and Trauma, Ministry of Education, Key Laboratory of Hainan Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, China.
| |
Collapse
|