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Zhao B, Liu X, Cheng Z, Liu X, Zhang X, Feng X. A portable Eu-MOF-loaded paper-based probe integrated with smartphone for the visual and on-site detection of Cr 2O 72- in aqueous media. Talanta 2024; 278:126462. [PMID: 38917552 DOI: 10.1016/j.talanta.2024.126462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/19/2024] [Accepted: 06/20/2024] [Indexed: 06/27/2024]
Abstract
The high toxicity of dichromate anion (Cr2O72-) its accurate necessitates its sensitive and effective detection to safeguard human health. The study introduces a Eu-MOF fluorescent probe, named as Eu-TDCA, synthesized using 2,5-thiophenedicarboxylic acid (H2TDCA) as a bridging ligand for the detection of Cr2O72- in aqueous media. The probe suspension can detect Cr2O72- through fluorescence quenching, and the detection process exhibits a wide linear range (0-85 and 85-230 mg/L), low limit of detection (LOD, 5.1 μg/L) and rapid response speed (2 min). Furthermore, a portable Eu-TDCA-loaded paper-based probe, integrated with a smartphone color recognition app, was developed for the visual, sensitive and quantitative detection of Cr2O72- in real lake and river water samples, achieving satisfactory recoveries of 99.72%-103.75 %. Additionally, an advanced logic gate device was designed to simplify the detection process, providing a new direction for intelligent on-line detection of analytes.
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Affiliation(s)
- Beibei Zhao
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, China; College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471022, China
| | - Xinfang Liu
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, China.
| | - Zheng Cheng
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471022, China
| | - Xu Liu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471022, China
| | - Xiaoyu Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471022, China.
| | - Xun Feng
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, China
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2
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Zhao B, Liu X, Cheng Z, Liu X, Zhang X, Feng X. Smartphone-integrated paper-based sensing platform for the visualization and quantitative detection of pymetrozine. Food Chem 2024; 440:138269. [PMID: 38157705 DOI: 10.1016/j.foodchem.2023.138269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/11/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Pymetrozine (PYM) is an effective pyridine insecticide for controlling aphids, while its residues pose a serious threat to human health. Herein, a europium complex (Eu-DBPA, DBPA represents deprotonated 2,5-dibromoterephthalic acid ligand) probe was prepared for the detection of PYM via fluorescence quenching. The detection process has the advantages of short response time (2 min), wide linear range (0-4 and 4-45 mg/kg) and low detection limit (2.2 μg/kg). Furthermore, a portable detection platform was designed by integrating Eu-DBPA-based paper strip with smartphone and applied for the visual detection of PYM in real cucumber, tomato, cabbage and apple samples, obtaining satisfactory recovery (99.00 %-107.00 %) and low standard deviation (RSD < 3.4 %). In addition, a logic gate device was designed to simplify the detection process. The smartphone-integrated paper-based probe detection platform provides a new strategy for intelligent and online identification of hazards in environmental and biological samples.
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Affiliation(s)
- Beibei Zhao
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China; College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China
| | - Xinfang Liu
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China.
| | - Zheng Cheng
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China; College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China
| | - Xu Liu
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China; College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China
| | - Xiaoyu Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China.
| | - Xun Feng
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
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3
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Zhang J, Jia Y, Tong X, Zhou H, Zhang L, Yang Y, Ji X. Portable ratiometric fluorescence detection of Cu 2+and thiram. Methods Appl Fluoresc 2024; 12:035002. [PMID: 38587171 DOI: 10.1088/2050-6120/ad3891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
Food contaminants pose a danger to human health, but rapid, sensitive and reliable food safety detection methods can offer a solution to this problem. In this study, an optical fiber ratiometric fluorescence sensing system based on carbon dots (CDs) and o-phenylenediamine (OPD) was constructed. The ratiometric fluorescence response of Cu2+and thiram was carried out by the fluorescence resonance energy transfer (FRET) between CDs and 2,3-diaminophenazine (ox-OPD, oxidized state o-phenylenediamine). The oxidation of OPD by Cu2+resulted in the formation of ox-OPD, which quenched the fluorescence of CDs and exhibited a new emission peak at 573 nm. The formation of a [dithiocarbamate-Cu2+] (DTC-Cu2+) complex by reacting thiram with Cu2+, inhibits the OPD oxidation reaction triggered by Cu2+, thus turning off the fluorescence signal of OPD-Cu2+. The as-established detection system presented excellent sensitivity and selectivity for the detection of Cu2+and thiram in the ranges of 1 ∼ 100μM and 5 ∼ 50μM, respectively. The lowest detection limits were 0.392μM for Cu2+and 0.522μM for thiram. Furthermore, actual sample analysis indicated that the sensor had the potential for Cu2+and thiram assays in real sample analysis.
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Affiliation(s)
- Jiazhen Zhang
- School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Yicong Jia
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
| | - Xuan Tong
- School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Hangyu Zhou
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
| | - Le Zhang
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
| | - Yue Yang
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
- Education Ministry Key Laboratory of Renewable Energy Advanced Materials and Manufacturing Technology, Yunnan Normal University, Kunmsing 650500, People's Republic of China
| | - Xu Ji
- School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
- Education Ministry Key Laboratory of Renewable Energy Advanced Materials and Manufacturing Technology, Yunnan Normal University, Kunmsing 650500, People's Republic of China
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Du X, Zhang Q, Ma X, Xu G, Li J, Song P, Xia L. Dual detection and quantification of hypochlorite and sulfite ions via SERS spectroscopy by utilizing the redox reaction of tetramethylbenzidine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 312:124051. [PMID: 38368820 DOI: 10.1016/j.saa.2024.124051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 01/25/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
We developed a highly efficient, ultra-sensitive, and selective dual detection sensor for hypochlorite (ClO-) and sulfite (SO32-) ions based on surface-enhanced Raman scattering (SERS) spectroscopy. 3,3',5,5'-Tetramethylbenzidine (TMB) is oxidized by ClO- under acidic conditions to diazotized oxTMB that, when electrostatically adsorbed onto Au nanoparticles (NPs), produces a strong Raman signal at 1605 cm-1. Meanwhile, oxTMB is reduced to TMB by SO32-, which significantly reduces the Raman signal. The linear detection range of the proposed sensor is 10-10 to 10-6 M with a detection limit of 59 pM for ClO- and 10-9 to 10-5 M with a detection limit of 5.4 nM for SO32-. In addition, the sensor was successfully applied to detect ClO- and SO32- in water samples.
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Affiliation(s)
- Xiaoyu Du
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Qijia Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Xiaodi Ma
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Guangda Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jia Li
- College of Physics, Liaoning University, Shenyang 110036, China
| | - Peng Song
- College of Physics, Liaoning University, Shenyang 110036, China.
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang 110036, China.
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Gao W, Zhang S, Wang G, Cui J, Lu Y, Rong X, Luo Y, Zhang L, Cheng Z, Gao C. Nitrogen and sulfur co-doped carbon quantum dots as "on-off-on" fluorescence probes to detect Hg 2+ and MnO 4- and improving the photostability of Rhodamine B. Anal Chim Acta 2023; 1277:341683. [PMID: 37604617 DOI: 10.1016/j.aca.2023.341683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Carbon quantum dot (CQDs) are zero-dimensional carbon nanomaterials with a size of less than 10 nm CQDs are widely used in the field of ion detection by virtue of their fluorescence characteristics such as strong fluorescence intensity, good optical stability and tunable emission wavelength. Although the traditional atomic absorption method, electrochemical method and other metal ion detection methods are highly sensitive, the operation is complex, expensive and limited by the site. Therefore, we prepared the N, S-CQDs capable of detecting Hg2+ and MnO4- in water with the advantages of simple operation, low cost, and direct visual signal. RESULTS N, S-CQDs with high-quantum yield (77.68%), uniform particle size (0.4 nm-2.6 nm) and green fluorescence were created utilizing a one-pot hydrothermal process with the precursors ASDA-Na4 and m-phenylenediamine. N, S-CQDs has good optical properties such as high fluorescence intensity, wavelength independence, up-conversion luminescence and fluorescence stability. We examined 27 common ions in water and found that the fluorescence of N, S-CQDs could be selectively quenched by Hg2+ and MnO4-, and the detection limits are 0.41 μM and 1.2 μM, respectively. The mechanism of quenching is further investigated. The fluorescence of N, S-CQDs-Hg2+ system can be restored by halogen ions (Cl-, Br-, I-), while the fluorescence of N, S-CQDs-MnO4- system can be partially restored by Fe2+. This forms an "on-off-on" mode of fluorescent probes. In addition, we also studied that trace amounts of N, S-CQDs can improve the photostability of RhB. SIGNIFICANCE The N, S-CQDs are fluorescent probes in an "on-off-on" mode. N, S-CQDs with green fluorescence (on) can be quenched by Hg2+ and MnO4- (off). The fluorescence quenched by Hg2+ can be restored by halogen ions again, while the fluorescence quenched by MnO4- can partially be restored (on). This ion detection method can be used to visually detect the two ions in the field, with the advantages of low cost, simple operation and visual intuition.
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Affiliation(s)
- Wensu Gao
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Shurong Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Guiqiao Wang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Jinzhi Cui
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Yaxin Lu
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Xing Rong
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Yawen Luo
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - LiChao Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Zhongfa Cheng
- Shandong Taihe Technologies Co, Ltd, Zaozhuang, Shandong, China.
| | - Canzhu Gao
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
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Mandal T, Ghosh AK, Mishra SR, Pandey SK, Singh V. Development of fluorescent carbon nanoparticles from Madhuca longifolia flower for the sensitive and selective detection of Cr 6+: a collective experimental-computational approach. NANOSCALE ADVANCES 2023; 5:4269-4285. [PMID: 37560432 PMCID: PMC10408586 DOI: 10.1039/d3na00289f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/14/2023] [Indexed: 08/11/2023]
Abstract
Herein, blue-emitting carbon nanoparticles (CNPs) were synthesized using the Madhuca longifolia flower for the highly selective and sensitive detection of Cr6+ ions in aqueous media using a simple, green, and cost-effective approach, and computational experiments were also performed. The prepared CNPs were well-dispersed in water with an average diameter of 12 nm and functionalized with carbonyl, hydroxyl and carboxylic acid groups. The decrease in the fluorescence intensity of the CNPs with an increase in the content of Cr6+ provided an important signal for the sensitive and selective detection of Cr6+ in aqueous media. The limit of detection for Cr6+ in an aqueous medium was found to be 103 ppb, which is more sensitive in comparison with the previously reported study. Furthermore, the validation of the proposed higher sensing feature and more selective nature of the CNPs towards Cr6+ was also explained using an in silico approach. The results from the theoretical calculations based on the DFT approach demonstrated that the binding energy (BE) of the CNPs with three transition metal (TM) cations (Cr6+, Fe3+, and Hg2+) follows the order of Cr6+ > Fe3+ > Hg2+, where the Cr6+ TM cation associated with the CNPs possesses the highest valence state, showing the highest sensing feature and highest selectivity among the investigated ions, as expected. The metal ions associated with the CNPs having a higher charge and a smaller radius indicated a higher BE and larger degree of deformation of the CNPs. Moreover, to achieve new insights into the structural, stability/energetics, and electronic features, some useful tools, such as NCI-plot, HOMO-LUMO gap, MESP, and QTAIM analysis were employed, which facilitated noteworthy outcomes.
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Affiliation(s)
- Tuhin Mandal
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
| | - Ashish Kumar Ghosh
- Coal Quality and Value Addition Division, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Shiv Rag Mishra
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Sarvesh Kumar Pandey
- Department of Chemistry, School of Basic Sciences, Manipal University Jaipur Jaipur - 303007 Rajasthan India
| | - Vikram Singh
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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7
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Che H, Tian X, Chen W, Dai C, Nie Y, Li Y, Lu L. Simultaneous visual detection of multiple heavy metal ions by a high-throughput fluorescent probe. Mikrochim Acta 2023; 190:311. [PMID: 37468761 DOI: 10.1007/s00604-023-05882-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/26/2023] [Indexed: 07/21/2023]
Abstract
To develop simultaneous and in-situ detection techniques towards Cr(VI) and Mn(II), Eu/Tb@CDs with white fluorescence were prepared by a one-step hydrothermal method. With the increase of Cr(VI), all fluorescence channels of Eu/Tb@CDs exhibited obvious quenching, and the detection limit (LOD) was 0.10 μM. In the presence of Mn(II), only the fluorescence from Tb and Eu was quenched, while the fluorescence of CDs was not effected. The LOD for Mn(II) was 0.16 μM. More importantly, in the actual water samples where Cr(VI) and Mn(II) coexist, Eu/Tb@CDs can realize their rapid and simultaneous detection by simple spectral calculation. The selective and competitive experiments have also confirmed that the detection of Cr(VI) and Mn(II) was not interfered by common pollutants in groundwater. It is undeniable that the simultaneous detection of multiple targets by one probe not only greatly improves the detection efficiency, but also has important significance for the field monitoring of water quality parameters.
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Affiliation(s)
- Huachao Che
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Xike Tian
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Wei Chen
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Chu Dai
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Yulun Nie
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China.
| | - Yong Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Liqiang Lu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
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Kundu A, Maity B, Basu S. Orange Pomace-Derived Fluorescent Carbon Quantum Dots: Detection of Dual Analytes in the Nanomolar Range. ACS OMEGA 2023; 8:22178-22189. [PMID: 37360434 PMCID: PMC10285992 DOI: 10.1021/acsomega.3c02474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023]
Abstract
Green-emissive carbon quantum dots (CQDs) with exclusive chemosensing aspects were synthesized from orange pomace as a biomass-based precursor via a facile microwave method without using any chemicals. The synthesis of highly fluorescent CQDs with inherent nitrogen was confirmed through X-ray diffraction, X-ray photoelectron, Fourier transform infrared, Raman, and transmission electron microscopic techniques. The average size of the synthesized CQDs was found to be 7.5 nm. These fabricated CQDs displayed excellent photostability, water solubility, and outstanding fluorescent quantum yield, i.e., 54.26%. The synthesized CQDs showed promising results for the detection of Cr6+ ions and 4-nitrophenol (4-NP). The sensitivity of CQDs toward Cr6+ and 4-NP was found up to the nanomolar range with the limit of detection values of 59.6 and 14 nM, respectively. Several analytical performances were thoroughly studied for high precision of dual analytes of the proposed nanosensor. Various photophysical parameters of CQDs (quenching efficiency, binding constant, etc.) were analyzed in the presence of dual analytes to gain more insights into the sensing mechanism. The synthesized CQDs exhibited fluorescence quenching toward incrementing the quencher concentration, which was rationalized by the inner filter effect through time-correlated single-photon counting measurements. The CQDs fabricated in the current work exhibited a lower detection limit and a wide linear range through the simple, eco-friendly, and rapid detection of Cr6+ and 4-NP ions. To evaluate the feasibility of the detection approach, real sample analysis was conducted, demonstrating satisfactory recovery rates and relative standard deviations toward the developed probes. This research paves the way for developing CQDs with superior characteristics utilizing orange pomace (biowaste precursor).
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Affiliation(s)
- Aayushi Kundu
- School
of Chemistry and Biochemistry, Senior Research Fellow—TIET-Virginia
Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Banibrata Maity
- School
of Chemistry and Biochemistry, Affiliate Faculty—TIET-Virginia
Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Soumen Basu
- School
of Chemistry and Biochemistry, Affiliate Faculty—TIET-Virginia
Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology, Patiala 147004, India
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Sun W, Jiang L, Hao X, Fan X, Qin Y, Huang T, Lou Y, Liao L, Zhang K, Chen S, Qin A. Cane Molasses Derived N-Doped Graphene Quantum Dots: Dynamic Quenching Synergistically Photoinduced Electron Transfer for the Instant Detection of Nitrofuran Antibiotics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4394-4405. [PMID: 36913721 DOI: 10.1021/acs.langmuir.3c00008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The development of a highly selective, simple, and rapid detection method for nitrofuran antibiotics (NFs) is of great significance for food safety, environmental protection, and human health. To meet these needs, in this work, cyan-color highly fluorescent N-doped graphene quantum dots (N-GQDs) were synthesized using cane molasses as the carbon source and ethylenediamine as the nitrogen source. The synthesized N-GQDs have an average particle size of 6 nm, a high fluorescence intensity with 9 times that of undoped GQDs, and a high quantum yield (24.4%) which is more than 6 times that of GQDs (3.9%). A fluorescence sensor based on N-GQDs for the detection of NFs was established. The sensor shows advantages of fast detection, high selectivity, and sensitivity. The limit of detection for furazolidone (FRZ) was 0.29 μM, the limit of quantification (LOQ) was 0.97 μM, and the detection range was 5-130 μM. The fluorescence quenching mechanism of the sensor was explored by fluorescence spectroscopy, UV-vis absorption spectroscopy, Stern-Volmer quenching constant, Zeta potential, UV-vis diffuse reflectance spectroscopy, and cyclic voltammetry. A fluorescence quenching mechanism of dynamic quenching synergized with photoinduced electron transfer was revealed. The developed sensor was also successfully applied for detecting FRZ in various real samples, and the results were satisfactory.
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Affiliation(s)
- Wei Sun
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Li Jiang
- College of Science, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Xinyu Hao
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Xingang Fan
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Yingxi Qin
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Tao Huang
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Ying Lou
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Lei Liao
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Kaiyou Zhang
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Shuoping Chen
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Aimiao Qin
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
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10
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Wang G, Zhang S, Cui J, Gao W, Rong X, Lu Y, Gao C. Novel highly selective fluorescence sensing strategy for Mercury(Ⅱ) in water based on nitrogen-doped carbon quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 286:122010. [PMID: 36308826 DOI: 10.1016/j.saa.2022.122010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
In this work, a fluorescent signal-closing probe of nitrogen-doped carbon quantum dots (NCQDs) was developed for quantitative detection of mercury ions (Hg2+). In this detection system, the NCQDs with high quantum yield (QY, 63.80 %) were synthesized via simple hydrothermal method with Methyl Glycine Diacetic acid Trisodium Salt (MGDA) and m-phenylenediamine (MPD) as carbon and nitrogen sources. The NCQDs have a typical surface structure and exceptional fluorescence stability, and their fluorescence zones are centered on excitation wavelengths of 440 nm and emission wavelengths of 510 nm. Under optimal conditions, the NCQDs have outstanding anti-interference ability to various ions and high selectivity to mercury ions. The fluorescence intensity of the detection system is weakened due to the generation of non-fluorescent groups caused by the static quenching effect. The fluorescence quenching efficiency shows a fascinating linear relationship with Hg2+ ions at 0-100 μM (y = 0.0051x-0.015, R2 = 0.9943), and the detection limit is 0.9 μM. Acute toxicity test shows that NCQDs have low toxicity and little harm to environment. The detection system can be used for the quantification of mercury ions in environmental water samples, and the recovery rate is between 99.64 % and 103.43 %, indicating that it is a simple and economical fluorescence detection method.
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Affiliation(s)
- Guiqiao Wang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
| | - Shurong Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Jinzhi Cui
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Wensu Gao
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Xing Rong
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Yaxin Lu
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Canzhu Gao
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
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11
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Song J, Lin X, Ee LY, Li SFY, Huang M. A Review on Electrospinning as Versatile Supports for Diverse Nanofibers and Their Applications in Environmental Sensing. ADVANCED FIBER MATERIALS 2022; 5:429-460. [PMID: 36530770 PMCID: PMC9734373 DOI: 10.1007/s42765-022-00237-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/13/2022] [Indexed: 05/26/2023]
Abstract
Rapid industrialization is accompanied by the deterioration of the natural environment. The deepening crisis associated with the ecological environment has garnered widespread attention toward strengthening environmental monitoring and protection. Environmental sensors are one of the key technologies for environmental monitoring, ultimately enabling environmental protection. In recent decades, micro/nanomaterials have been widely studied and applied in environmental sensing owing to their unique dimensional properties. Electrospinning has been developed and adopted as a facile, quick, and effective technology to produce continuous micro- and nanofiber materials. The technology has advanced rapidly and become one of the hotspots in the field of nanomaterials research. Environmental sensors made from electrospun nanofibers possess many advantages, such as having a porous structure and high specific surface area, which effectively improve their performance in environmental sensing. Furthermore, by introducing functional nanomaterials (carbon nanotubes, metal oxides, conjugated polymers, etc.) into electrospun fibers, synergistic effects between different materials can be utilized to improve the catalytic activity and sensitivity of the sensors. In this review, we aimed to outline the progress of research over the past decade on electrospinning nanofibers with different morphologies and functional characteristics in environmental sensors.
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Affiliation(s)
- Jialing Song
- College of Environmental Science and Engineering, Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai, 201620 People’s Republic of China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
| | - Xuanhao Lin
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
| | - Liang Ying Ee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
| | - Sam Fong Yau Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
- National University of Singapore Environmental Research Institute, T Lab Bldg, 5A Engineering Drive 1, Singapore, 117411 Singapore
| | - Manhong Huang
- College of Environmental Science and Engineering, Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai, 201620 People’s Republic of China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092 People’s Republic of China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620 People’s Republic of China
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12
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Cheng Z, Fan Y, Zhang L, Wang C. Preparation of co-enhanced gold nanoclusters and its application in the detections of 4-hexylresorcinol and Cr6++. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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13
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Zou WS, Xu Y, Li W, Kong WL, Li H, Qu Q, Wang Y. Lysosome-targetable brightly green fluorescence carbon dots for real-time monitoring in cell and highly efficient removal in environment of hypochlorite. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 281:121591. [PMID: 35809425 DOI: 10.1016/j.saa.2022.121591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Due to the lacks of lysosome localization group and reaction/interaction site for hypochlorite (ClO-) on the surface of the carbon dots (C-dots), no C-dots-based lysosome-targeted fluorescence probes have, so far, been reported for real-time monitoring intracellular ClO-. In this work, 1,3,6-trinitropyrene (TNP) was used as a precursor to prepare C-dots with maximum excitation and emission wavelengths at 485 and 532 nm, respectively, and quantum yield ∼ 27% by a hydrothermal approach at 196 °C for 6 h under a reductive atmosphere. The brightly green C-dots can sensitively and quickly respond to ClO- in aqueous solution through surface chemical reaction, showing a linear relationship in the range of 0.5-120 μΜ ClO- with 0.27 μΜ of limit of detection (LOD). Most significantly, the C-dots can localize at intracellular lysosome to image ClO- in lysosomes. Also, the magnetic nanocomposites (C-dots@Fe3O4 MNCs) were fabricated via a simple electrostatic self-assembly between Fe3O4 magnetic nanoparticles (Fe3O4 MNPs) and C-dots for highly efficient removal of ClO- in real samples. Therefore, lysosome-targetable C-dots-based probes for real-time monitoring ClO- were successfully constructed, opening up a promising door to investigate the biological functions and pathological roles of ClO- at organelle levels.
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Affiliation(s)
- Wen-Sheng Zou
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Yu Xu
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Weihua Li
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Wei-Li Kong
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Haibin Li
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Qishu Qu
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Yaqin Wang
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China.
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14
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Qi D, Si X, Guo L, Yan Z, Shao C, Yang L. Two novel and high-efficiency optical chemosensors of detecting Fe3+ and CrO42− based on Metal−organic frameworks of Cd(Ⅱ). J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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15
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Tan Q, Li X, Wang L, Zhao J, Yang Q, Sun P, Deng Y, Shen G. One-step synthesis of highly fluorescent carbon dots as fluorescence sensors for the parallel detection of cadmium and mercury ions. Front Chem 2022; 10:1005231. [PMID: 36247679 PMCID: PMC9563711 DOI: 10.3389/fchem.2022.1005231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Cadmium (Cd2+) and mercury ions (Hg2+) are essential for the quality control of food samples because of their serious toxicity to human health, but the effective and simple strategy for their parallel detection remains challenging. In this paper, a rapid and simple parallel detection method for Cd2+ and Hg2+ was developed using carbon dots (CDs) as fluorescent sensors. A one-step hydrothermal method with a single precursor l-arginine as both the carbon and nitrogen sources was employed to prepare nitrogen-doped CDs (N-CDs). N-CDs exhibited a uniform particle size and excitation-independent fluorescence emission. The maximum emission wavelength of N-CDs was observed at 354 nm with the excitation wavelength at 295 nm. The quantum yield of N-CDs reached as high as 71.6% in water. By using sodium diphosphate and phytic acid as masking agents, the fluorescent sensor can be quenched by Cd2+ and Hg2+ in the linear range of 0–26.8 μM and 0–49.9 μM within 5 min. Other common ions in farm products showed no significant effect on the fluorescence intensity of the sensing system. The results demonstrated that the sensing system had good selectivity and sensitivity for Cd2+ and Hg2+. The detection limits for Cd2+ and Hg2+ were 0.20 and 0.188 μM, respectively. In addition, the fluorescent sensor had been successfully applied for the detection of Cd2+ and Hg2+ in fruits and vegetables, and the recoveries were 86.44–109.40% and 86.62–115.32%, respectively. The proposed fluorescent sensor provides a rapid, simple, and sensitive detection method for Cd2+ and Hg2+ in food samples and thus a novel quantitative detection method for heavy metal ions in foods.
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Affiliation(s)
- Qiren Tan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoying Li
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Lumei Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- YunNan (Dali) Research Institute of Shanghai Jiao Tong University, Dali, Yunnan, China
| | - Jie Zhao
- Shanghai Pudong Agriculture Technology Extension Centre, Shanghai, China
| | - Qinyan Yang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Peng Sun
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yun Deng
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- YunNan (Dali) Research Institute of Shanghai Jiao Tong University, Dali, Yunnan, China
| | - Guoqing Shen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- YunNan (Dali) Research Institute of Shanghai Jiao Tong University, Dali, Yunnan, China
- *Correspondence: Guoqing Shen,
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16
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Inner-filter Effect Induced Fluorescence Quenching of Carbon Dots for Cr(VI) Detection with High Sensitivity. J Fluoresc 2022; 32:2343-2350. [PMID: 36156168 DOI: 10.1007/s10895-022-03028-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/12/2022] [Indexed: 10/14/2022]
Abstract
Carbon dots (CDs) were used to develop a sensitive sensing technique for detecting Cr(VI). CDs were made using a hydrothermal technique from citric acid and glutamic acid. These prepared CDs emitted blue fluorescence under excitation of 350 nm (λem = 420 nm), and the fluorescence quantum yield was 48.41%. Transmission electron microscope was used to examine the morphology of the CDs, which had an average size of 2.21 ± 0.39 nm. The elementary composition and bonding structure of the CDs were conducted by XPS and FT-IR spectrum. Cr(VI) quenched the fluorescence of CDs through a static quenching effect and an inner filter effect, allowing Cr(VI) to be detected quantitatively. This approach was used to detect Cr(VI) in two samples of water, with the findings demonstrating that it is reliable and accurate. The fluorescence intensity change was linearly related to the concentration of Cr(VI) in the range from 0.5 to 400 μM, with the detection limit being 0.10 μM. This approach has the virtues of wide detection range, low cost and fast response. The strategy has a great application prospect for detecting Cr(VI) in practical samples.
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17
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Wang Z, Li L, Zhan S, Wu S. Plasmonic near field assistant highly sensitive detection of hypochlorite by lanthanide co-doped core/shell upconversion probe. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Cai ZF, Li HY, Wang XS, Min C, Wen JQ, Fu RX, Dai ZY, Chen J, Guo MZ, Yang HJ, Bai PP, Lu XM, Wu T, Wu Y. Highly luminescent copper nanoclusters as temperature sensors and “turn off” detection of oxytetracycline. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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19
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Peng J, Yuan H, Ren T, Liu Z, Qiao J, Ma Q, Guo X, Ma G, Wu Y. Fluorescent nanocellulose-based hydrogel incorporating titanate nanofibers for sorption and detection of Cr(VI). Int J Biol Macromol 2022; 215:625-634. [PMID: 35772640 DOI: 10.1016/j.ijbiomac.2022.06.148] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 06/13/2022] [Accepted: 06/22/2022] [Indexed: 12/15/2022]
Abstract
Chromium pollution is a major environmental concern; thus, effective and multifunctional adsorbents for removing the Cr(VI) ion are urgently needed. A fluorescent nanocellulose-based hydrogel (FNH) incorporating titanate nanofibers (TNs) was developed for the sorption and detection of Cr(VI) ion. The chemical and physical structures of the hydrogels, as well as their sorption and detection properties, were studied. The predicted maximum adsorption capacity and the lowest detection limit of FNH were 648.4 mg/g and 0.039 μg/L, respectively. Furthermore, the sorption and detection mechanisms of FNH were discussed in detail. These results showed that the excellent sorption and detection might be mainly attributed to the three-dimensional (3D) porous structure constructed by TNs and cellulose nanocrystals modified with carbon dots, which improved the sorption ability and provided the rapid visual response to Cr(VI). Furthermore, cost analysis showed that FNH was cheaper than activated carbon in removing the Cr(VI) ion. This work established a facile technique in developing low-cost and multifunctional adsorbents.
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Affiliation(s)
- Junwen Peng
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China; College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Hanmeng Yuan
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Tingting Ren
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhihuan Liu
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jianzheng Qiao
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qiang Ma
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xin Guo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Guoxin Ma
- School of Computer and Control Engineering, Yantai University, Yantai, Shandong 264005, China.
| | - Yiqiang Wu
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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20
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Hu J, Wang X, Wei H, Zhao L, Yao B, Zhang C, Zhou J, Liu J, Yang S. Solid-Phase Synthesis of Red Fluorescent Carbon Dots for the Dual-Mode Detection of Hexavalent Chromium and Cell Imaging. BIOSENSORS 2022; 12:bios12060432. [PMID: 35735579 PMCID: PMC9221384 DOI: 10.3390/bios12060432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/01/2022] [Accepted: 06/18/2022] [Indexed: 11/16/2022]
Abstract
The excellent optical properties and biocompatibility of red fluorescence carbon dots (R-CDs) provide a new approach for the effective analysis of hexavalent chromium Cr(VI) in environmental and biological samples. However, the application of R-CDs is still limited by low yield and unfriendly synthesis route. In this study, we developed a new type of R-CDs based on a simple and green solid-phase preparation strategy. The synthesized R-CDs can emit bright red fluorescence with an emission wavelength of 625 nm and also have an obvious visible light absorption capacity. Furthermore, the absorption and fluorescence signals of the R-CDs aqueous solution are sensitive to Cr(VI), which is reflected in color change and fluorescence quenching. Based on that, a scanometric and fluorescent dual-mode analysis system for the rapid and accurate detection of Cr(VI) was established well within the limit of detection at 80 nM and 9.1 nM, respectively. The proposed methods also possess high specificity and were applied for the detection of Cr(VI) in real water samples. More importantly, the synthesized R-CDs with good biocompatibility were further successfully applied for visualizing intracellular Cr(VI) in Hela cells.
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Affiliation(s)
- Jinshuang Hu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
| | - Xin Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
| | - Hua Wei
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
| | - Lei Zhao
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
- Correspondence: (L.Z.); (S.Y.)
| | - Boxuan Yao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
| | - Caiyun Zhang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
| | - Jiarui Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
| | - Jian Liu
- Institute of Advanced Materials, Jiangxi Normal University, Nanchang 330022, China;
| | - Shenghong Yang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (J.H.); (X.W.); (H.W.); (B.Y.); (C.Z.); (J.Z.)
- Correspondence: (L.Z.); (S.Y.)
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21
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Meng F, Xu H, Wang S, Wei J, Zhou W, Wang Q, Li P, Kong F, Zhang Y. One-step high-yield preparation of nitrogen- and sulfur-codoped carbon dots with applications in chromium( vi) and ascorbic acid detection. RSC Adv 2022; 12:19686-19694. [PMID: 35919374 PMCID: PMC9277421 DOI: 10.1039/d2ra01758j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/26/2022] [Indexed: 11/23/2022] Open
Abstract
In this research, a nitrogen- (N) and sulfur- (S) codoped carbon dot (CDs-IPM)-based sensor was synthesized using a single-step hydrothermal method. Specifically, microcrystalline cellulose (MCC) was the main raw material, which was extracted from banana pseudo-stem-based waste, while autonomous sulfonic acid-functionalized ionic liquid (SO3H-IL) and polyethylene glycol 400 (PEG 400) acted as the N, S dopant, and surface modifier, respectively. Comprehensive spectroscopic characterization of the synthesized CDs-IPM revealed the introduction of S, N atoms in the matrix with existence of surface oxygenic functional groups. The CDs-IPM possessed enhanced photoluminescence (PL) intensity, synthetic yield, and PL quantum yield (PLQY). Additionally, electron transfer between the CDs-IPM, hexavalent chromium (Cr(vi)), and subsequent ascorbic acid (AA) succeeded in turning the fluorescence on and off. The detection limit was 17 nM for Cr(vi), while it was 103 nM for AA. Our study data can simplify the process of synthesis of CDs utilizing biodegradable starting materials. The probe reported in this study may serve as a valuable addition to the field of environment monitoring by virtue of its enhanced detection sensitivity, high selectivity, and stability. A novel bio-based nitrogen- and sulfur-codoped carbon dot with enhanced synthetic yield and photoluminescence quantum yield for reversible detection of chromium (Cr)(vi) and ascorbic acid was fabricated by a one-pot hydrothermal method.![]()
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Affiliation(s)
- Fanrong Meng
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, P. R. China
| | - Haoran Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Shuolin Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jingxian Wei
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Wengong Zhou
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Qiang Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Peng Li
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Yucang Zhang
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, P. R. China
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