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Wei J, Gu Q, Er X, Sun J, Jin H. Dual excitation channel ratiometric fluorescent probes for visual and fluorescent detection of anthrax spore biomarker and tetracycline hydrochloride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 324:124942. [PMID: 39128386 DOI: 10.1016/j.saa.2024.124942] [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: 04/12/2024] [Revised: 08/01/2024] [Accepted: 08/06/2024] [Indexed: 08/13/2024]
Abstract
Long-term and excessive use of tetracycline hydrochloride (TC) can lead to its accumulation in the environment, which can cause water contamination, bacterial resistance, and food safety problems. 2,6-Pyridine dicarboxylic acid (DPA) is a major biomarker of Bacillus anthracis spores, and its rapid and sensitive detection is of great significance for disease prevention and counter-terrorism. A bifunctional ratiometric fluorescent nanoprobe has been fabricated to detect DPA and TC. 3,5-dicarboxyphenylboronic acid (BOP) was intercalated into layered europium hydroxide (LEuH) by the ion-exchange method and exfoliated into nanosheets as a fluorescent nanoprobe (PNP). DPA and TC could significantly enhance the red fluorescence of Eu3+ through the antenna effect under different excitation wavelengths, while the fluorescence of BOP can be used as a reference based on the constant emission intensity, realizing ratiometric detection. A low limit of detection (LOD) for the target (DPA: 9.7 nM, TC: 21.9 nM) can be achieved. In addition, visual detection of DPA and TC was realized using color recognition software based on the obvious color changes. This is the first ratiometric fluorescent nanoprobe based on layered rare-earth hydroxide (LRH) for the detection of DPA and TC simultaneously, which opens new ideas in the design of multifunctional probes.
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Affiliation(s)
- Jiaxin Wei
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Qingyang Gu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China.
| | - Xinyu Er
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Jia Sun
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Haibo Jin
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
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Gao M, Yu J, Shi S, Wang J, Fu L. Fabrication, spectroscopic and photofunctional studies of layered lutetium-dysprosium hydroxides. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 326:125194. [PMID: 39332168 DOI: 10.1016/j.saa.2024.125194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/12/2024] [Accepted: 09/22/2024] [Indexed: 09/29/2024]
Abstract
The spectroscopic studies of layered rare-earth hydroxides (LRHs) have aroused great interests owing to the unique features of combing rare-earth ions with diverse anions. In this work, some anions were incorporated into layered lutetium-dysprosium hydroxides (LLuH:Dy) by the hydrothermal and ion exchange process, in which Dy3+ ion acted as the emission center. The results manifest that the assemblies possess clearly lamellar structure and flake shape, and emit the characteristic yellow and blue light of Dy3+ under ultraviolet excitation. The inorganic WO42- intercalated LLuH:Dy shows enhanced luminescence under the excitation with 280 nm which originates from the O-W charge transfer band. The more fantastic is that the assembly produces bright cyan light due to the appropriate yellow/blue light intensity ratio, and can transform into transparent and flexible film by mixing with certain polymer. Moreover, the intercalation of organic chromophore benzenetetracarboxylic anion into LLuH:Dy also greatly promotes the Dy3+ luminescence, and can easily form the nanosheet colloid through combining with surfactant dodecyl sulfonate. The colloid is very stable at ambient temperature and displays excellent selectivity, sensitivity and accuracy for detecting metal Co2+ in aqueous media, constructing a superior fluorescence sensor for Co2+ with a detection limit of 2.65 × 10-7 mol/L. This work expands the photofunctional performances of LRHs in the form of transparent film and colloidal state.
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Affiliation(s)
- Mai Gao
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Jingjie Yu
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Shikao Shi
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China.
| | - Jiye Wang
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Lianshe Fu
- Department of Physics, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
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Wei J, Liu Z, Gu Q, Sun J, Jin H. A smartphone-intergrated dual-emission fluorescent nanoprobe for visual and ratiometric detection of anthrax biomarkers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123785. [PMID: 38134652 DOI: 10.1016/j.saa.2023.123785] [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: 09/25/2023] [Revised: 12/02/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
A novel dual-emission fluorescent nanoprobe based on rare-earth nanosheets was fabricated to detect 2,6-pyridine dicarboxylic acid (DPA), which is the biomarker of Bacillus anthracis. 2-amino terephthalic acid (BDC-NH2) and surfactant sodium dodecyl sulfate (SDS) were co-intercalated into layered europium hydroxide (LEuH) to prepare the organic/inorganic composite, which was delaminated to obtain the rare-earth nanosheets. The ratio detection of DPA is possible due to the antenna effect between DPA and Eu3+. The nanoprobe shows high accuracy and sensitivity due to the large specific surface area of the rare-earth nanosheets. The limit of detection (LOD) is 4.4 nM for DPA in the range of 0-20 μM. In addition, a more convenient and faster smartphone-based visual detection platform was established based on the obvious color change. This work offers an effective way for developing visual sensing platforms, which opens a new path for designing fluorescent probes with superior sensing capabilities.
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Affiliation(s)
- Jiaxin Wei
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Zikang Liu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Qingyang Gu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China.
| | - Jia Sun
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Haibo Jin
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
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Heng H, Gu Q, Jin H, Shen P, Wei J, Er X, Sun J. Fabrication of a ratiometric fluorescence nanoprobe for detecting tryptophan enantiomers. Talanta 2024; 268:125291. [PMID: 37837951 DOI: 10.1016/j.talanta.2023.125291] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/17/2023] [Accepted: 10/06/2023] [Indexed: 10/16/2023]
Abstract
A novel ratiometric fluorescence nanoprobe was developed to detect tryptophan enantiomers with high selectivity and sensitivity. Fluorescein (FL) was doped into SiO2 nanoparticles with little dye leakage, acting as an internal reference signal. The chiral center of L-histidine (L-His) was introduced by partially replacing the carboxyl on the surface of SiO2. The response signal of Eu3+ was coordinated with carboxyl to obtain the FL@SiO2-Eu/His nanoprobe. The nanoprobe shows enantioselective luminescence responses for tryptophan enantiomers. The red emission of Eu3+ can be effectively quenched by the tryptophan enantiomers, but the quenching efficiency is different due to the different interactions with the chiral recognition sites. The fluorescence intensity ratio (I613/I515) shows excellent linearity with tryptophan enantiomers in the range of 0-100 μM (R2 > 0.99). The limit of detection (LOD) is 1.0 μM and 1.3 μM for L-tryptophan (L-Trp) and D-tryptophan (D-Trp), respectively. The FL@SiO2-Eu/His nanoprobe shows good selectivity and specific recognition in serum actual samples. In addition, the nanoprobe can realize visual detection under UV light due to the obvious color change. This work provides an innovative idea for the development of new probes in the detection field.
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Affiliation(s)
- Hui Heng
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
| | - Qingyang Gu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China.
| | - Haibo Jin
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
| | - Ping Shen
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
| | - Jiaxin Wei
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
| | - Xinyu Er
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
| | - Jia Sun
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
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Li J, Shen Y, Gu Q, Liu H, Heng H, Wang Z, Wei J, Shen P. Fluorescence on and off sensing platform based on europium nanosheets for the detection of DPA and Cu 2+ ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 294:122522. [PMID: 36863081 DOI: 10.1016/j.saa.2023.122522] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/11/2023] [Accepted: 02/16/2023] [Indexed: 06/19/2023]
Abstract
With the development of society, the modern environment has put forward higher requirements for analysis and detection. This work proposes a new strategy for the construction of fluorescent sensors based on rare-earth nanosheets. Organic/inorganic composites were obtained by the intercalation of 4,4'-stilbene dicarboxylic acid (SDC) into layered europium hydroxide, and then the composites were exfoliated to form nanosheets. Taking advantage of the fluorescence emission characteristics of SDC and Eu3+, a ratiometric fluorescent nanoprobe was constructed, which realized the detection of dipicolinic acid (DPA) and Cu2+ in the same system. With the addition of DPA, the blue emission of SDC gradually decreased and the red emission of Eu3+ gradually increased, when Cu2+ was added, the emission of SDC and Eu3+ were gradually weakened. The experimental results showed that the ratio of fluorescence emission intensity (I619/I394) of the probe had a positive linear relationship with the concentration of DPA, and a negative linear relationship with the concentration of Cu2+, thus realizing the high sensitivity detection of DPA and a wide detection range of Cu2+. In addition, this sensor also exhibits potential visual detection possibilities. This is a multifunctional fluorescent probe that provides a novel and efficient method for the detection of DPA and Cu2+, which broadens the application field of rare-earth nanosheets.
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Affiliation(s)
- Jinyan Li
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Ying Shen
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Qingyang Gu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China.
| | - Haoyu Liu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Hui Heng
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Ziwei Wang
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Jiaxin Wei
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Ping Shen
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
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Heng H, Ma D, Gu Q, Li J, Jin H, Shen P, Wei J, Wang Z. A core-shell structure ratiometric fluorescent probe based on carbon dots and Tb 3+ for the detection of anthrax biomarker. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122793. [PMID: 37187145 DOI: 10.1016/j.saa.2023.122793] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/18/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023]
Abstract
A novel core-shell structure ratiometric fluorescent probe was developed, which can selectively and sensitively detect 2,6-dipicolinic acid (DPA) as an anthrax biomarker. Carbon dots (CDs) was embedded into SiO2 nanoparticles, which was acted as an internal reference signal. Tb3+ with green emission was connected to the carboxyl functionalized SiO2, which was acted as a responsive signal. With the addition of DPA, the emission of CDs at 340 nm was unchanged, while the fluorescence of Tb3+ at 544 nm was enhanced by the antenna effect. In the concentration range of 0.1-2 μM, the fluorescence intensity ratio of I544/I340 showed a good linear relationship with the concentration of DPA, and the limit of detection (LOD) was 10.2 nM. In addition, the dual-emission probe showed an obvious fluorescence color change from colourless to green with increasing DPA under UV light, which enabled visual detection.
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Affiliation(s)
- Hui Heng
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Deming Ma
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Qingyang Gu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China.
| | - Jinyan Li
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Haibo Jin
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Ping Shen
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Jiaxin Wei
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Ziwei Wang
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
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Yu J, Xu Y, Shi S, Wang J, Song H, Fu L. Spectroscopic properties and fluorescent recognition of dye sensitized layered lutetium-terbium hydroxides. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 276:121240. [PMID: 35429864 DOI: 10.1016/j.saa.2022.121240] [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: 01/22/2022] [Revised: 03/21/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
The layered rare earth hydroxides have attracted increasing interests due to their diverse chemical composition and tunable spectroscopic properties. In this paper, a novel Tb3+ activated layered lutetium hydroxide (LLuH:Tb) was fabricated, in which the inorganic NO3- ions were ion-exchanged with organic (ibuprofen or dodecylsulfonate) anions. After the ion-exchange reaction, the organic anions intercalated LLuH:Tb showed the distinct lamellar structure with the interlayer distance of about 2.56 nm, confirming the formation of inorganic/organic hybrid assembly. The dye ibuprofen-intercalated hybrid effectively promoted the characteristic 5D4 → 7F5 green emission of Tb3+ in the host but failed to be exfoliated into nanosheet colloid. On the contrary, the dodecylsulfonate-intercalated hybrid was readily to be exfoliated into nanosheet colloid by dissolving in formamide solvent, but the green emission of Tb3+ was too weak to be observed. To take advantage of their respective merits and explore the practical uses, certain amounts of dye ibuprofen were directly added to the dodecylsulfonate-intercalated hybrid colloid. Excited with the ultraviolet light, the characteristic green fluorescence of Tb3+ was dramatically enhanced, indicating that the dye was a superior light-harvesting antenna to sensitize the activator Tb3+. The dye sensitized hybrid colloid was very stable at ambient temperature and exhibited excellent fluorescent recognition for Cu2+ ions over other metal ions in aqueous solution due to the large fluorescence quenching. The detection limit for Cu2+ ion reaches 7.63 × 10-7 mol/L, which is far lower than the limitation of Cu2+ in drinking water recommended by the World Health Organization (1.57 × 10-5 mol/L). The fluorescence enhanced/quenched sensor with excellent stability exhibits a high potential for the detection of Cu2+ in routine environmental water.
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Affiliation(s)
- Jingjie Yu
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Yifei Xu
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Shikao Shi
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China.
| | - Jiye Wang
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Huihua Song
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nanomaterials, Hebei Normal University, Shijiazhuang 050024, China
| | - Lianshe Fu
- Department of Physics, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
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Li J, Gu Q, Heng H, Wang Z, Jin H, He J. Rare-Earth hydroxide nanosheets based ratio fluorescence nanoprobe for dipicolinic acid detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:120969. [PMID: 35158139 DOI: 10.1016/j.saa.2022.120969] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
We demonstrate a novel ratio fluorescence nanoprobe for dipicolinic acid (DPA) as an anthrax biomarker based on layered rare-earth hydroxide (LRH). 3-Amino-benzenesulfonic acid (AS) was intercalated into layered terbium hydroxide to form composite and then delaminated into nanosheets in formamide. The monolayer nanosheets were beneficial to expose the Ln3+ luminescence centers to the environment more completely, contributing a high sensitive detection to the environment. With the increase of DPA concentration, the emission intensity of AS kept constant which worked as a stable internal reference, while the fluorescence of Tb3+ was enhanced obviously due to the antenna effect. In the 0.05-5.0 μM concentration range, the I544/I360 fluorescence ratio changed with the DPA concentration, which exhibited a good linear relationship (R2 = 0.999) and an ultralow detection limit of 3.8 nM. In addition, the probe showed high selectivity and sensitivity to the DPA detection as an anthrax biomarker, which can be applied in real tap water with good performances. This work could extend the applications of LRH nanosheets in detection and offer an extremely effective and easy technique for detecting DPA.
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Affiliation(s)
- Jinyan Li
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Qingyang Gu
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China.
| | - Hui Heng
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Ziwei Wang
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Haibo Jin
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing 102617, China
| | - Jing He
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Hara T, Habe M, Nakanishi H, Fujimura T, Sasai R, Moriyoshi C, Kawaguchi S, Ichikuni N, Shimazu S. Specific lift-up behaviour of acetate-intercalated layered yttrium hydroxide interlayer in water: application for heterogeneous Brønsted base catalysts toward Knoevenagel reactions. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02328d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The basal (00l) plane of acetate-intercalated layered yttrium hydroxide (CH3COO−/Y-LRH), synthesised by an anion exchange using Cl−/Y-LRH as a parent material, increased in water, and the lifted-up layered structure was generated immediately.
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Affiliation(s)
- Takayoshi Hara
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Maoko Habe
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Hikaru Nakanishi
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Takuya Fujimura
- Department of Materials Chemistry, Graduate School of Natural Science and Technology, Shimane University, Matsue, Shimane 690-8504, Japan
| | - Ryo Sasai
- Department of Materials Chemistry, Graduate School of Natural Science and Technology, Shimane University, Matsue, Shimane 690-8504, Japan
| | - Chikako Moriyoshi
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute, Sayo-gun, Hyogo 679-5198, Japan
| | - Nobuyuki Ichikuni
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Shogo Shimazu
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
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Wang H, Yao H, Chen L, Yu Z, Yang L, Li C, Shi K, Li C, Ma S. Highly efficient capture of uranium from seawater by layered double hydroxide composite with benzamidoxime. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 759:143483. [PMID: 33229092 DOI: 10.1016/j.scitotenv.2020.143483] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/13/2020] [Accepted: 10/28/2020] [Indexed: 06/11/2023]
Abstract
Through swelling/restoration reaction, benzamidoxime (BAO) is introduced into MgAl-LDH interlayers to assemble a new composite of MgAl-BAO-LDH (abbr. BAO-LDH). Wet samples of the BAO-LDH obtained by washing with diverse solvents are present in colloidal state, which facilitates the fabrication of thin film adsorbents convenient for actual application. After drying, the assembled sample exhibits floral morphology composed of thin nanosheets, much different from hexagonal morphology of NO3- intercalated MgAl-LDH precursor (NO3-LDH), demonstrating a phenomenon rarely found in swelling/restoration. The BAO-LDH depicts an extremely large maximum sorption capacity (qmU) of 327 mg·g-1 and ultra-high selectivity for U. At low U concentrations (5-10 ppm), nearly complete capture (~100%) is achieved in a wide pH range of 3-11, while at high U concentrations (110 ppm), quite high U removals (≥93.0%) are obtained at pH = 6-8, meaning perfect suitability for trapping U from seawater. For natural seawater containing trace amounts of U (3.93 ppb) coexisting with high concentration of competitive ions, the BAO-LDH displays significantly high U removal (87%). Complexation between interlayer BAO (N and O as ligands) with UO22+ and synergistic interactions of LDH layer hydroxyls with UO22+ contribute to the highly effective uranium capture. All results demonstrate the BAO-LDH is a promising adsorbent applied in seawater uranium extraction and nuclear wastewater disposal.
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Affiliation(s)
- Hui Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Huiqin Yao
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Lihong Chen
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zihuan Yu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lixiao Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Cheng Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Keren Shi
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Cuiqing Li
- Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Shulan Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China.
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Mondal S, Roy SG, Ghosh K. Anthraimidazoledione Derivatives in Fluoride Sensing Ensuing Si‐O Bond Cleavage in Organic and Aqueous Medium. ChemistrySelect 2020. [DOI: 10.1002/slct.202001122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Subhendu Mondal
- Department of Chemistry University of Kalyani Kalyani 741235 India
| | | | - Kumaresh Ghosh
- Department of Chemistry University of Kalyani Kalyani 741235 India
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12
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Ushakou D, Wróblewski T. Study of the spectroscopic properties and deprotonation of 6-bromo-2-naphthoic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117854. [PMID: 31784227 DOI: 10.1016/j.saa.2019.117854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/20/2019] [Accepted: 11/23/2019] [Indexed: 06/10/2023]
Abstract
The present work studies the UV-Vis spectroscopic properties of 6-bromo-2-naphthoic acid (BNA) dissolved in methanol, tetrahydrofuran (THF) and ethyl acetate. It has been found that there are significant differences between the emission spectra for the samples with different concentrations of BNA in methanol. Also, the analogical changes have been observed in the case of the samples of BNA in THF and ethyl acetate which have been studied immediately after preparation and 24 h after preparation. It could be explained by deprotonation processes that take place in BNA. Moreover, it has been found that the anion formation process in BNA is more intensive in the case of methanol solvent in comparison with the cases of THF and ethyl acetate. This fact could be explained by the different polarity of these solvents. As methanol is characterized by higher polarity, the deprotonation is more intensive in the case of this solvent. To verify our assumption the quantum-chemical calculations have been also performed. It has been found that the enthalpy of dissociation (the bond-dissociation energy) is equal to 183.2, 200.2 and 205.4 kcal/mol for BNA dissolved in methanol, THF and ethyl acetate, respectively. It explains why the deprotonation process in methanol is more intensive than in THF and ethyl acetate. Thereby, the study shows that the obtained theoretical calculations are in good agreement with the experimental results.
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Affiliation(s)
- Dzmitryi Ushakou
- Pomeranian University in Słupsk, str. Arciszewskiego 22b, 76-200 Słupsk, Poland.
| | - Tomasz Wróblewski
- Pomeranian University in Słupsk, str. Arciszewskiego 22b, 76-200 Słupsk, Poland
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13
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Guo R, Li J, Chen L, Yu Z, Yao H, Shi K, Li C, Ma S. SDC/OS-LDH composite for highly sensitive fluorescence detection of Fe3+ at a much lower concentration. Dalton Trans 2020; 49:10413-10420. [DOI: 10.1039/d0dt01873b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The significantly quenched luminescence of delaminated SDC/OS-LDH when contacted with Fe3+ can sensitively detect trace amounts of Fe3+.
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Affiliation(s)
- Rong Guo
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Jian Li
- Chemistry & Chemical and Environmental Engineering College
- Weifang University
- Weifang 261061
- China
| | - Lihong Chen
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Zihuan Yu
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Huiqin Yao
- School of Basic Medical Sciences
- Ningxia Medical University
- Yinchuan 750004
- China
| | - Keren Shi
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Cuiqing Li
- Department of Chemical Engineering
- Beijing Institute of Petrochemical Technology
- Beijing 102617
- China
| | - Shulan Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
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