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Wu S, Ma C, Gao Y, Su Y, Xia Q, Chen Z, Zhu JJ. Dynamic Detection of Endogenous Hydroxyl Radicals at Single-Cell Level with Individual Ag-Au Nanocages. Anal Chem 2020; 92:9940-9947. [PMID: 32567299 DOI: 10.1021/acs.analchem.0c01501] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hydroxyl radicals (•OH) are a type of short-lived radical which is the most aggressive reactive oxygen species due to its high reactivity to biomolecules. Dynamic measurement of •OH level in living cells is critical for understanding cell physiology and pathology. In this manuscript, we prepare individual Ag-Au@PEG/RGD nanocages for in situ determination of endogenous •OH at single-cell level, whose spectral shift rate correlate to the •OH concentration. The high-selective response to •OH relies on the specific oxidization of the conjugated PEG/RGD outside and the silver etching inside the nanocages that resulted in a significant LSPR signal and scattered color changes. The spectral red-shift rate of LSPR has a linear relationship with the logarithm of •OH concentration in range of 100 pM to 1 μM, suitable for the measurement of endogenous •OH. Thus, the individual nanocages were successfully used to monitor the dynamic intracellular •OH level of single tumor cells under oxidative stress. This strategy has great potential in promoting •OH mediated cell homeostasis and injury research.
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Affiliation(s)
- Shaojun Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Cheng Ma
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Yan Gao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Yu Su
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Qing Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Zixuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
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Tai C, Zhang S, Yin Y, Dai Z, Li Y, Jiang G, Cai Y, Huang C, Shi J. Facile Photoinduced Generation of Hydroxyl Radical on a Nitrocellulose Membrane Surface and its Application in the Degradation of Organic Pollutants. CHEMSUSCHEM 2018; 11:843-847. [PMID: 29417754 DOI: 10.1002/cssc.201800047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Indexed: 06/08/2023]
Abstract
A simple, clean, and efficient method has been developed for generating hydroxyl radicals on a nitrocellulose membrane (NCM) under light of wavelengths greater than 280 nm. Hydroxyl radicals formed on the NCM surface, diffusing into the bulk solution under irradiation. Radical generation was shown to be dependent on the nature of the NCM and light, and independent of the properties of the bulk solution. The quantum yield for hydroxyl radicals from the NCM was 1.72×10-4 , which is approximately 2.46 times that from TiO2 . This hydroxyl radical generation method was preliminarily applied in the photodegradation of organic pollutants, in which electrostatic interactions between the pollutant molecules and the NCM surface were found to play a key role. Further applications of this hydroxyl radical generation method should be assessed.
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Affiliation(s)
- Chao Tai
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, 454000, P. R. China
| | - Shaodong Zhang
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, 454000, P. R. China
| | - Yongguang Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
| | - Zhifeng Dai
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, 454000, P. R. China
| | - Yanbin Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, P. R. China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
| | - Yong Cai
- Department of Chemistry and Biochemistry, Florida International University, Miami, 33199, USA
| | - Chunhua Huang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
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Liang X, Xu X, Qiao D, Yin Z, Shang L. Dual Mechanism of an Intramolecular Charge Transfer (ICT)-FRET-Based Fluorescent Probe for the Selective Detection of Hydrogen Peroxide. Chem Asian J 2017; 12:3187-3194. [DOI: 10.1002/asia.201701382] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 10/22/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Xiao Liang
- College of Pharmacy & State Key Laboratory; of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
| | - Xiaoyi Xu
- Tianjin Medical University; Tianjin 300070 P.R. China
| | - Dan Qiao
- College of Pharmacy & State Key Laboratory; of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
| | - Zheng Yin
- College of Pharmacy & State Key Laboratory; of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
| | - Luqing Shang
- College of Pharmacy & State Key Laboratory; of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
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Yao J, Li L, Li P, Yang M. Quantum dots: from fluorescence to chemiluminescence, bioluminescence, electrochemiluminescence, and electrochemistry. NANOSCALE 2017; 9:13364-13383. [PMID: 28880034 DOI: 10.1039/c7nr05233b] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
During the past decade, nanotechnology has become one of the major forces driving basic and applied research. As a novel class of inorganic fluorochromes, research into quantum dots (QDs) has become one of the fastest growing fields of nanotechnology today. QDs are made of a semiconductor material with tunable physical dimensions as well as unique optoelectronic properties, and have attracted multidisciplinary research efforts to further their potential bioanalytical applications. Recently, numerous optical properties of QDs, such as narrow emission band peaks, broad absorption spectra, intense signals, and remarkable resistance to photobleaching, have made them biocompatible and sensitive for biological assays. In this review, we give an overview of these exciting materials and describe their potential, especially in biomolecules analysis, including fluorescence detection, chemiluminescence detection, bioluminescence detection, electrochemiluminescence detection, and electrochemical detection. Finally, conclusions are made, including highlighting some critical challenges remaining and a perspective of how this field can be expected to develop in the future.
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Affiliation(s)
- Jun Yao
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China.
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Bai X, Huang Y, Lu M, Yang D. HKOH-1: A Highly Sensitive and Selective Fluorescent Probe for Detecting Endogenous Hydroxyl Radicals in Living Cells. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705873] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoyu Bai
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Yueyang Huang
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Mingyang Lu
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Dan Yang
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
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Bai X, Huang Y, Lu M, Yang D. HKOH-1: A Highly Sensitive and Selective Fluorescent Probe for Detecting Endogenous Hydroxyl Radicals in Living Cells. Angew Chem Int Ed Engl 2017; 56:12873-12877. [DOI: 10.1002/anie.201705873] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaoyu Bai
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Yueyang Huang
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Mingyang Lu
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Dan Yang
- Morningside Laboratory for Chemical Biology; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
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Zhao Q, Zhang R, Ye D, Zhang S, Chen H, Kong J. Ratiometric Fluorescent Silicon Quantum Dots-Ce6 Complex Probe for the Live Cell Imaging of Highly Reactive Oxygen Species. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2052-2058. [PMID: 28026159 DOI: 10.1021/acsami.6b12047] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The monitoring of reactive oxygen species (ROS) in living cells remains challenging because of the complexity, short half-life, and autofluorescence of biological samples. In this work, we designed a ratiometric fluorescent probe for the detection and imaging of ROS, which was constructed from silicon quantum dots (Si QDs) with chlorin e6 (Ce6) through electrostatic attraction and showed well-resolved dual fluorescence emission signals (490 and 660 nm). Sensitive and selective biosensing of hydroxyl radical (•OH) was demonstrated on the basis of fluorescence quenching of the Si QDs and Ce6 as an internal reference to avoid environmental interference, with a detection limit of ∼0.97 μM. The endogenous release of •OH was also monitored and imaged in living cells.
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Affiliation(s)
- Qianqian Zhao
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Ren Zhang
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Daixin Ye
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Song Zhang
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Hui Chen
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Jilie Kong
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
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