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Lin YM, Wang XY, Liu XY, Hua FF, Chen XF, Bai J, Fu YL. Near-infrared fluorescent probe to track Cys in plant roots under heavy metal hazards and its application in cells and zebrafish. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124601. [PMID: 38852307 DOI: 10.1016/j.saa.2024.124601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/14/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Heavy metals, including Hg2+, Cr6+ and Cd2+, have always been a major issue in environmental pollution, leading to abnormal changes in the levels of biologically active molecules including Cys in plants, seriously affecting all aspects of the growth and development of plants. This makes it essential to develop a simple and practical method to study the potential impact of heavy metals on plants. In this paper, our research group has developed near-infrared fluorescent probe WRM-S, which has the advantages of fast response, sensitivity to Cys, and successfully applying it to cells and zebrafish. Moreover, it combined the close relationship between heavy metal stress on plants and Cys, using Cys as the detection target, monitoring the internal environment changes of two plants under Hg2+, Cr6+, and Cd2+ stress in the environment, and then conducting 3D imaging. The results indicated that the probe has strong penetration ability in plant tissues, and revealed abnormal changes in plant Cys levels caused by heavy metal stress-induced cellular oxidative stress or cytotoxicity. Thus, the in-situ imaging detection of this probe provides a direction for the physiological dynamics research of plant environmental stress.
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Affiliation(s)
- You-Mei Lin
- Key Laboratory of Xin'an Medicine, Ministry of Education; Anhui University of Chinese Medicine, Hefei, 230038, China
| | - Xiang-Yu Wang
- Key Laboratory of Xin'an Medicine, Ministry of Education; Anhui University of Chinese Medicine, Hefei, 230038, China
| | - Xin-Yue Liu
- Key Laboratory of Xin'an Medicine, Ministry of Education; Anhui University of Chinese Medicine, Hefei, 230038, China
| | - Fan-Feng Hua
- Key Laboratory of Xin'an Medicine, Ministry of Education; Anhui University of Chinese Medicine, Hefei, 230038, China
| | - Xiao-Feng Chen
- Anhui Biochem United Pharmaceutical Co., Ltd., Taihe, 236699, China
| | - Jun Bai
- Anhui Biochem United Pharmaceutical Co., Ltd., Taihe, 236699, China
| | - Ying-Long Fu
- Key Laboratory of Xin'an Medicine, Ministry of Education; Anhui University of Chinese Medicine, Hefei, 230038, China; Anhui Biochem United Pharmaceutical Co., Ltd., Taihe, 236699, China; Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
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Redeker FA, O’Malley K, McMahon WP, Jorabchi K. Solution Cathode Glow Discharge Coupled to Atmospheric Pressure Chemical Ionization for Elemental Detection of S and P in Organic Compounds. SPECTROCHIMICA ACTA. PART B, ATOMIC SPECTROSCOPY 2024; 212:106858. [PMID: 38292419 PMCID: PMC10824527 DOI: 10.1016/j.sab.2024.106858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
We report a post-plasma chemical ionization approach to evaluate solution cathode glow discharge (SCGD) for S and P elemental analysis. Here, the SCGD serves as a reactor to produce chemical vapors for S and P from organic compounds containing these elements, while a corona discharge operated in negative mode is used to ionize the products. The approach creates long-lived ions in atmospheric pressure, enabling direct investigation of chemical vapor products via mass spectrometric and ion mobility separations. The investigations indicate that SCGD converts S and P to H2SO4 and H3PO4, respectively. These species are then ionized as HSO4HNO3 - and H3PO4NO3HNO3- via reactions with NO3HNO3- produced by corona discharge. The response factors for P among several small molecules varies within 10% of the average response from the compounds, suggesting a reasonable species-independent characteristic. The response factors for S show larger variations among compounds, indicating a higher dependence of chemical vapor generation efficiency on analytes' chemical structures. Detection limits of 15 and 29 ng/mL are achieved for P and S detection, respectively. These figures are limited by background equivalent concentrations and low ion flux in the utilized ion mobility-time of flight mass spectrometer, indicating potential for significant improvements. In particular, the specificity of clustering for S and P-containing ions produced in this approach suggest facile analysis of S and P using quadrupole-based mass spectrometers for improved analytical performance.
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Affiliation(s)
- Frenio A. Redeker
- Department of Chemistry, Georgetown University, 37 and O streets, NW, Washington, DC 20057, USA
| | - Kelsey O’Malley
- Department of Chemistry, Georgetown University, 37 and O streets, NW, Washington, DC 20057, USA
| | | | - Kaveh Jorabchi
- Department of Chemistry, Georgetown University, 37 and O streets, NW, Washington, DC 20057, USA
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Chen X, Chen J, Ma M, Yu S, Liu Z, Zeng X. An Ethyl-Thioglycolate-Functionalized Fe 3O 4@ZnS Magnetic Fluorescent Nanoprobe for the Detection of Ag + and Its Applications in Real Water Solutions. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1992. [PMID: 37446508 DOI: 10.3390/nano13131992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/26/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023]
Abstract
Ethyl-thioglycolate-modified Fe3O4@ZnS nanoparticles (Fe3O4@ZnS-SH) were successfully prepared using a simple chemical precipitation method. The introduction of ethyl thioglycolate better regulated the surface distribution of ZnS, which can act as a recognition group and can cause a considerable quenching of the fluorescence intensity of the magnetic fluorescent nanoprobe, Fe3O4@ZnS-SH. Benefiting from stable fluorescence emission, the magnetic fluorescent nanoprobe showed a highly selective fluorescent response to Ag+ in the range of 0-400 μM, with a low detection limit of 0.20 μM. The magnetic fluorescent nanoprobe was used to determine the content of Ag+ in real samples. A simple and environmentally friendly approach was proposed to simultaneously achieve the enrichment, detection, and separation of Ag+ and the magnetic fluorescent nanoprobe from an aqueous solution. These results may lead to a wider range of application prospects of Fe3O4 nanomaterials as base materials for fluorescence detection in the environment.
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Affiliation(s)
- Xin Chen
- School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Jie Chen
- Center of Characterization and Analysis, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Mingshuo Ma
- Center of Characterization and Analysis, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Shihua Yu
- School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Zhigang Liu
- Center of Characterization and Analysis, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Xiaodan Zeng
- Center of Characterization and Analysis, Jilin Institute of Chemical Technology, Jilin 132022, China
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Liu X, Cheng G, Yang C, Wang G, Li S, Li Y, Zheng H, Hu S, Zhu Z. Ultraviolet assisted liquid spray dielectric barrier discharge plasma-induced vapor generation for sensitive determination of arsenic by atomic fluorescence spectrometry. Talanta 2023; 257:124339. [PMID: 36801565 DOI: 10.1016/j.talanta.2023.124339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
In this study, a novel sensitive method for As determination by atomic fluorescence spectrometry was developed based on UV-assisted liquid spray dielectric barrier discharge (UV-LSDBD) plasma-induced vapor generation. It was found that prior-UV irradiation greatly facilitates As vapor generation in LSDBD likely because of the increased generation of active substances and the formation of As intermediates with UV irradiation. The experimental conditions affecting the UV and LSDBD processes (such as formic acid concentration, irradiation time, the flow rates of sample, argon and hydrogen) were optimized in detail. Under the optimum conditions, As signal measured by LSDBD can be enhanced by about 16 times with UV irradiation. Furthermore, UV-LSDBD also offers much better tolerance to coexisting ions. The limit of detection was calculated to be 0.13 μg L-1 for As, and the relative standard deviation of the repeated measurements was 3.2% (n = 7). The accuracy and effectiveness of this new method were further verified by the analysis of simulated natural water reference sample and real water samples. In this work, UV irradiation was utilized for the first time as an enhancement strategy for PIVG, which opens a new approach for developing green and efficient vapor generation methods.
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Affiliation(s)
- Xing Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Guo Cheng
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Chun Yang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Guan Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Shuyang Li
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Yixiao Li
- Yiwu Academy of Science & Technology for Inspection & Quarantine, Yiwu 322000, China
| | - Hongtao Zheng
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Shenghong Hu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Zhenli Zhu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China; State Environmental Protection Key Laboratory of Source Appointment and Control of Aquatic Pollution, Ministry of Ecology and Environment, Wuhan 430074, China.
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Greda K, Welna M, Szymczycha-Madeja A, Pohl P. Flow injection gas analysis (FIGA) for more sensitive determination of Hg by inductively coupled plasma optical emission spectrometry. Talanta 2022. [DOI: 10.1016/j.talanta.2022.124072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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