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Li F, Liu KQ, Wang WJ, Jiang ZT, Kong FY, Li HY, Wang ZX, Wang W. Selective identification of p-nitroaniline by bromine-mediated polarization of carbon dots. Analyst 2024; 149:1212-1220. [PMID: 38214602 DOI: 10.1039/d3an02080k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
A fluorometric method based on boron, bromide-codoped carbon dots (BBCNs) was developed for the first time for the highly selective detection of p-nitroaniline (PNA) in wastewater samples. It should be noted that the introduction of bromine greatly increases the molecular polarizability of the probe, which can regulate the energy level matching between the probe and PNA, resulting in the interaction between BBCNs and PNA. In the presence of PNA, the fluorescence of BBCNs is obviously quenched and accompanied by a red shift of the fluorescence band, which might be attributed to the formation of aggregates caused by the polar adsorption of BBCNs and PNA. It is beneficial for constructing a highly selective sensing platform for PNA determination compared to its isomers (o-nitroaniline and m-nitroaniline) through atomic bromine-mediated polarization of the BBCNs. With the help of this mechanism, an excellent linear range of 0.5-300 μM with a low detection limit of 0.24 μM toward PNA was obtained. This work further confirms that there is a significant relationship between the nature of doping elements and the optical and physicochemical properties of fluorescent materials.
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Affiliation(s)
- Feng Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Kai-Qi Liu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Wen-Juan Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Zhen-Tao Jiang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Fen-Ying Kong
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Heng-Ye Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Zhong-Xia Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
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Li K, Li H, Zhang Q, Yang D, Yang Y. Core-shell structure DA-CDs/AuNPs for the recognition of fenamidone by surface-enhanced Raman scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123865. [PMID: 38219613 DOI: 10.1016/j.saa.2024.123865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
In this work, a facile synthesis method for dopamine carbon dots-based Au nanoparticles (DA-CDs/AuNPs) by seed gold method was reported as the surface enhanced Raman scattering (SERS) booster. DA-CDs with rich in surface functional groups was synthesized using dopamine, citric acid and ethylenediamine as precursors by a facile hydrothermal method, and can be used as the capping agents and reducing agents for the synthesis of DA-CDs/AuNPs. Due to the electromagnetic "hot spots" effect, DA-CDs/AuNPs with core-shell structure exhibited strong SERS activity. Based on the specific interaction of DA-CDs/AuNPs and fenamidone, a detection method of fenamidone was established with a low detection limit of 0.05 μg/mL. Finally, the SERS sensor was successfully applied to the detection of fenamidone in fruit with recoveries between 90.6 % and 98.7 %. The method here proposed can be reliably applied for fenamidone detection on fruits.
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Affiliation(s)
- Kexiang Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province 650500, China
| | - Hong Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province 650500, China; Yunnan Agricultural University, Yunnan Province 650100, China
| | - Qian Zhang
- Yunnan Lunyang Technology Co., Ltd, Yunnan Province 650032, China
| | - Dezhi Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province 650500, China
| | - Yaling Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province 650500, China.
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Ahmed S, Mohanta D, Baruah K, Dolui SK. CsPbBr 3 perovskite quantum dot decorated ZIF-8 MOF: a selective dual recognition fluorometric visual probe for 4-nitroaniline and rhodamine blue. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6394-6403. [PMID: 37982280 DOI: 10.1039/d3ay01458d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
The uses of highly luminescent perovskite quantum dots in real analytical detection were limited by their supersensitive nature. Here, we have designed a CsPbBr3 perovskite based fluorometric sensor by integrating them with a zeolitic imidazole framework (ZIF-8) via an in situ one step technique and established its stability in aqueous and other polar solvents. The CsPbBr3@ZIF-8 luminescence sensor functioned excellently for the trace detection of 4-nitroaniline and rhodamine blue dye molecules with a detection limit value of 8.367 ppb and 0.088 ppm, respectively. A comprehensive investigation found that the quenching of the fluorescence signal occurred via fluorescence resonance energy transfer (FRET) for rhodamine blue dye and a H-bonding interaction induced trap density mediated quenching mechanism was responsible for 4-NA detection. The potential of this suggested sensor as a cheap portable test paper probe for analyte detection was also explored. This study introduces CsPbBr3 as a cutting-edge sensing platform for industrial pollutants such as dye molecules and nitroaromatics.
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Affiliation(s)
- Shahnaz Ahmed
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
| | | | - Kankana Baruah
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
| | - Swapan Kumar Dolui
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
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Wang H, Hou E, Xu N, Nie P, Chang L, Wu J, Zhang X. Graphene electrochemical transistors decorated by Ag nanoparticles exhibiting high sensitivity for the detection of paraquat over a wide concentration range. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:959-968. [PMID: 36723188 DOI: 10.1039/d2ay01728h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Paraquat (PQ) is a nonselective contact herbicide used in agriculture for the control of broad leaf weeds, which would cause irreversible damage to human organs even at very low concentrations. Therefore, the trace residue detection of PQ in the environment is of vital importance. Here, a novel graphene electrochemical transistor (GECT) for PQ detection is reported for the first time. The key to the device design is the application of a layer of Ag nanoparticle (Ag NP) modified monolayer graphene as the channel layer. Due to the good electrochemical activity of Ag NPs for PQ detection, the device exhibits excellent sensitivity for PQ with the detection limit of 0.068 nM and a wide linear range from 0.1 nM to 5 mM. The GECT sensor also reveals good selectivity toward several common interferents and exhibits satisfactory recoveries for PQ detection when using Chinese cabbage as a simulant to deduce the real detection situation. The GECT sensor not only provides an efficient method for the detection of PQ residues, but also provides an effective grafting platform for the construction of novel high-sensitivity electrochemical sensors.
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Affiliation(s)
- Hairui Wang
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
| | - Enhui Hou
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
| | - Na Xu
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
| | - Ping Nie
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
| | - Limin Chang
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
| | - Jianfeng Wu
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China.
| | - Xuelin Zhang
- MEMS Center, School of Astronautics, Harbin Institute of Technology, Harbin, 150001, PR China.
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Cui ML, Zhang GS, Kang ZW, Zhang XY, Xie QF, Huang ML, Wang BQ, Yang DP. Iridium nanoclusters for highly efficient p-nitroaniline fluorescence sensor. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Liu L, Du X. Stellate porous silica based surface-enhanced Raman scattering system for traceable gene delivery. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.12.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Mei X, Wang Y, Yang Y, Xu L, Wang Y, Guo Z, Shen W, Zhang Z, Ma M, Ding Y, Xiao Y, Yang X, Yin C, Guo W, Xu K, Wang C. Enhanced treatment of nitroaniline-containing wastewater by a membrane-aerated biofilm reactor: Simultaneous nitroaniline degradation and nitrogen removal. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Oliveira EGDL, de Oliveira HP, Gomes ASL. Metal nanoparticles/carbon dots nanocomposites for SERS devices: trends and perspectives. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03306-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Lai Y, Dong L, Liu R, Lu S, He Z, Shan W, Geng F, Cai Y, Liu J. Synthesis of highly-branched Au@AgPd core/shell nanoflowers for in situ SERS monitoring of catalytic reactions. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.04.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lu X, Zheng Q, Gu S, Guo R, Su L, Wang J, Zhou Z, Fan Y, Jiang W, Wang L. Enhanced TE properties of Cu@Ag/Bi2Te3 nanocomposites by decoupling electrical and thermal properties. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li S, Xu J, Wang S, Xia X, Chen L, Chen Z. Versatile metal graphitic nanocapsules for SERS bioanalysis. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.05.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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