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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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2
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Chu K, Wang C, Cui X. Europium (III)-modified sunflower-derived carbon dots for fluorescent anti-counterfeiting inks and photocatalysis. LUMINESCENCE 2024; 39:e4872. [PMID: 39245989 DOI: 10.1002/bio.4872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 08/05/2024] [Accepted: 08/12/2024] [Indexed: 09/10/2024]
Abstract
A highly water-soluble and fluorescent N,S-doped carbon dots/europium (N,S-CDs/Eu) was successfully synthesized via a secondary hydrothermal method. This involved surface modification of N,S-CDs derived from sunflower stem pith (SSP) with europium ions (Eu3+) doping. When excited within the range of 400-470 nm, N,S-CDs/Eu exhibited a stable and broad optimal emission wavelength ranging from 505 to 540 nm. Notably, the photoluminescence quantum yield (PLQY) of N,S-CDs/Eu is 31.4%, significantly higher than the 19.5% observed for N,S-CDs. Additionally, by dissolving N,S-CDs/Eu into polyvinyl alcohol (PVA), a uniform fluorescent anti-counterfeiting ink can be prepared. The N,S-CDs/Eu/TiO2 composite demonstrates excellent photocatalytic degradation ability towards the organic dye methylene blue (MB). N,S-CDs/Eu has potential in the field of fluorescent inks and photocatalysis due to its simple and efficient preparation and excellent properties.
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Affiliation(s)
- Kunyu Chu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Congling Wang
- School of Material Science and Engineering, Hunan University, Changsha, China
| | - Xuemin Cui
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
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3
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Wang S, Xu J, Yue F, Zhang L, Bi N, Gou J, Li Y, Huang Y, Zhao T, Jia L. Smartphone-assisted mobile fluorescence sensor for self-calibrated detection of anthrax biomarker, Cu 2+, and cysteine in food analysis. Food Chem 2024; 451:139410. [PMID: 38670024 DOI: 10.1016/j.foodchem.2024.139410] [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: 01/08/2024] [Revised: 03/26/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
Dipicolinic acid (DPA), as a biomarker for Bacillus anthracis, is highly toxic at trace levels. Rapid and on-site quantitative detection of DPA is essential for maintaining food safety and public health. This work develops a dual-channel self-calibrated fluorescence sensor constructed by the YVO4:Eu and Tb-β-diketone complex for rapid visual detection of DPA. This sensor exhibits high selectivity, fast response time, excellent detection sensitivity, and the detection limit is as low as 4.5 nM in the linear range of 0-16 μM. A smartphone APP and portable ultraviolet lamp can assemble a mobile fluorescence sensor for on-site analysis. Interestingly, adding Cu2+ ions can quench the fluorescence intensity of Tb3+. In contrast, the addition of cysteine can restore the fluorescence, allowing the accurate detection of Cu2+ ions and cysteine in environmental water and food samples. This work provides a portable sensor that facilitates real-time analysis of multiple targets in food and the environment.
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Affiliation(s)
- Sheng Wang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Jun Xu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China.
| | - Fengzhi Yue
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Lina Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Ning Bi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Jian Gou
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Yongxin Li
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Yuanyuan Huang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Tongqian Zhao
- Institute of Resources & Environment, Henan Polytechnic University, Jiaozuo, Henan 454000, China.
| | - Lei Jia
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China.
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Xu X, Min H, Li Y. Preparation and application of carbon quantum dot fluorescent probes combined with rare earth ions. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5731-5753. [PMID: 37882318 DOI: 10.1039/d3ay01318a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Globally, antibiotic abuse, organic contamination, and excessive heavy metal ion pollution pose serious threats to human health. In this case, ratiometric fluorescent probes can eliminate the errors caused by environmental factors and provide more accurate detection results than single-emission intensity nanoprobes. Accordingly, based on the excellent biocompatibility and abundant surface functional groups of carbon quantum dots (CQDs) and the properties of large Stokes shifts and narrow emission bands of rare earth ions (RE3+), RE-CQD fluorescent probes have attracted widespread attention. Herein, firstly we review the combination of carbon quantum dots with rare earth ions (rare earth complexes) using various functionalization approaches to improve the defects of rare earth complexes and realize the functionalization of carbon quantum dots and their applications in many fields, such as biology and environmental science. In addition, we classify the methods for the synthesis of RE-CQD hybrids into three groups according to the different binding modes of the RE and CQDs, including doping, covalent grafting, and direct coordination. The excellent properties of these fluorescent probes are also briefly described. Finally, a comprehensive overview of the important applications of RE-CQD fluorescent probes in the fields of public safety sensing, chemical sensing, biomedical sensing, temperature sensing, and pH sensing is presented. In this review, the recent research progress in the field of ratiometric fluorescence sensing based on carbon quantum dots and rare earth ions is summarized and an outlook on the future development of RE-CQD fluorescent probes regarding their construction and potential applications is provided.
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Affiliation(s)
- Xiaoyi Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
| | - Hua Min
- Technology Transfer Center, Institute of Science and Technology Development, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ying Li
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
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5
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Mahdavi M, Emadi H, Nabavi SR. A bacterial cellulose-based LiSrVO 4:Eu 3+ nanosensor platform for smartphone sensing of levodopa and dopamine: point-of-care diagnosis of Parkinson's disease. NANOSCALE ADVANCES 2023; 5:4782-4797. [PMID: 37705795 PMCID: PMC10496915 DOI: 10.1039/d3na00297g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/31/2023] [Indexed: 09/15/2023]
Abstract
Among the catecholamines, dopamine (DA) is essential in regulating multiple aspects of the central nervous system. The level of dopamine in the brain correlates with neurological diseases such as Parkinson's disease (PD). However, dopamine is unable to cross the blood-brain barrier (BBB). Therefore, levodopa (LD) is used to restore normal dopamine levels in the brain by crossing the BBB. Thus, the control of LD and DA levels is critical for PD diagnosis. For this purpose, LiSr0.0985VO4:0.015Eu3+ (LSV:0.015Eu3+) nanoplates were synthesized by the microwave-assisted co-precipitation method, and have been employed as an optical sensor for the sensitive and selective detection of catecholamines. The synthesized LSV:0.015Eu3+ nanoplates emitted red fluorescence with a high quantum yield (QY) of 48%. By increasing the LD and DA concentrations, the fluorescence intensity of LSV:0.015Eu3+ nanoplates gradually decreased. Under optimal conditions, the linear dynamic ranges were 1-40 μM (R2 = 0.9972) and 2-50 μM (R2 = 0.9976), and the detection limits (LOD) were 279 nM, and 390 nM for LD and DA, respectively. Herein, an instrument-free, rapid quantification visual assay was developed using a paper-based analytical device (PAD) with LSV:0.015Eu3+ fixed on the bacterial cellulose nanopaper (LEBN) to determine LD and DA concentrations with ease of operation and low cost. A smartphone was coupled with the PAD device to quantitatively analyze the fluorescence intensity changes of LSV:0.015Eu3+ using the color recognizer application (APP). In addition, the LSV:0.015Eu3+ nanosensor showed acceptable repeatability and was used to analyze real human urine, blood serum, and tap water samples with a recovery of 96-107%.
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Affiliation(s)
- Mohammad Mahdavi
- Department of Applied Chemistry, Faculty of Chemistry, University of Mazandaran Babolsar Iran
| | - Hamid Emadi
- Department of Applied Chemistry, Faculty of Chemistry, University of Mazandaran Babolsar Iran
| | - Seyed Reza Nabavi
- Department of Applied Chemistry, Faculty of Chemistry, University of Mazandaran Babolsar Iran
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Zhang D, Jia D, Fang Z, Min H, Xu X, Li Y. The Detection of Anthrax Biomarker DPA by Ratiometric Fluorescence Probe of Carbon Quantum Dots and Europium Hybrid Material Based on Poly(ionic)- Liquid. Molecules 2023; 28:6557. [PMID: 37764333 PMCID: PMC10537030 DOI: 10.3390/molecules28186557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/02/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Bacillus anthracis has gained international attention as a deadly bacterium and a potentially deadly biological warfare agent. Dipicolinic acid (DPA) is the main component of the protective layer of anthracis spores, and is also an anthrax biomarker. Therefore, it is of great significance to explore an efficient and sensitive DPA detection method. Herein, a novel ratio hybrid probe (CQDs-PIL-Eu3+) was prepared by a simple one-step hydrothermal method using carbon quantum dots (CQDs) as an internal reference fluorescence and a covalent bond between CQDs and Eu3+ by using a polyionic liquid (PIL) as a bridge molecule. The ratiometric fluorescence probe was found to have the characteristics of sensitive fluorescence visual sensing in detecting DPA. The structure and the sensing properties of CQDs-PIL-Eu3+ were investigated in detail. In particular, the fluorescence intensity ratio of Eu3+ to CQDs (I616/I440) was linear with the concentration of DPA in the range of 0-50 μM, so the detection limit of the probe was as low as 32 nm, which was far lower than the DPA dose released by the number of anthrax spores in human body (60 μM) and, thus, can achieve sensitive detection. Therefore, the ratiometric fluorescence probe in this work has the characteristics of strong anti-interference, visual sensing, and high sensitivity, which provides a very promising scheme for the realization of anthrax biomarker DPA detection.
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Affiliation(s)
- Dongliang Zhang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (D.Z.); (D.J.); (Z.F.); (X.X.)
| | - Dongsheng Jia
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (D.Z.); (D.J.); (Z.F.); (X.X.)
| | - Zhou Fang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (D.Z.); (D.J.); (Z.F.); (X.X.)
| | - Hua Min
- Technology Transfer Center, University of Shanghai for Science and Technology, Shanghai 200093, China;
| | - Xiaoyi Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (D.Z.); (D.J.); (Z.F.); (X.X.)
| | - Ying Li
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (D.Z.); (D.J.); (Z.F.); (X.X.)
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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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Cao Y, Gong X, Li L, Li H, Zhang X, Guo DY, Wang F, Pan Q. Xylenol orange-modified CdTe quantum dots as a fluorescent/colorimetric dual-modal probe for anthrax biomarker based on competitive coordination. Talanta 2023; 261:124664. [PMID: 37209586 DOI: 10.1016/j.talanta.2023.124664] [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: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/22/2023]
Abstract
Bacillus anthracis spores can make humans infected with vicious anthrax, so it is significant to detect their biomarker 2,6-pyridinedicarboxylic acid (DPA). The development of dual-modal methods for DPA detection that are more flexible in practical applications remains a challenge. Herein, colorimetric xylenol orange (XO) was modified on fluorescent CdTe quantum dots (QDs) for dual-modal detection of DPA through competitive coordination. After the binding of XO on CdTe QDs via coordination with Cd2+, CdTe QDs displayed quenched red fluorescence and the bound XO was presented as red color. The competitive coordination of DPA with Cd2+ made XO released from CdTe QDs, causing the enhanced red fluorescence of CdTe QDs and the yellow color of free XO. On this basis, DPA was rapidly (1 min) quantified through fluorescent and colorimetric modes within the ranges of 0.1-5 μM and 0.5-40 μM, respectively. The detection limits for DPA were calculated as low as 42 nM and 240 nM, respectively assigned to fluorescent and colorimetric modes. The level of urinary DPA was further measured. Satisfactory relative standard deviations (fluorescent mode: 0.1%-10.2%, colorimetric mode: 0.8%-1.8%) and spiked recoveries (fluorescent mode: 100.0%-115.0%, colorimetric mode: 86.0%-96.6%) were obtained.
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Affiliation(s)
- Yatian Cao
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou, 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Xiaolong Gong
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou, 570228, China
| | - Le Li
- NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine and Laboratory Medicine, Hainan Medical University, Haikou, 571199, China
| | - Huihui Li
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou, 570228, China.
| | - Xuanming Zhang
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou, 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Dong-Yu Guo
- Department of Clinical Laboratory, Xiamen Huli Guoyu Clinic, Co., Ltd., Xiamen, 361000, China.
| | - Fuxiang Wang
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou, 570228, China
| | - Qinhe Pan
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou, 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China.
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Zhang J, Chen H, Xu K, Deng D, Zhang Q, Luo L. Current Progress of Ratiometric Fluorescence Sensors Based on Carbon Dots in Foodborne Contaminant Detection. BIOSENSORS 2023; 13:233. [PMID: 36831999 PMCID: PMC9953573 DOI: 10.3390/bios13020233] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/30/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Carbon dots (CDs) are widely used in the detection of foodborne contaminants because of their biocompatibility, photoluminescence stability, and ease of chemical modification. In order to solve the interference problem of complexity in food matrices, the development of ratiometric fluorescence sensors shows great prospects. In this review, the progress of ratiometric fluorescence sensors based on CDs in foodborne contaminant detection in recent years will be summarized, focusing on the functionalized modification of CDs, the fluorescence sensing mechanism, the types of ratiometric fluorescence sensors, and the application of portable devices. In addition, the outlook on the development of the field will be presented, with the development of smartphone applications and related software helping to better enable the on-site detection of foodborne contaminants to ensure food safety and human health.
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Affiliation(s)
- Jialu Zhang
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Huinan Chen
- College of Sciences, Shanghai University, Shanghai 200444, China
| | - Kaidi Xu
- College of Sciences, Shanghai University, Shanghai 200444, China
| | - Dongmei Deng
- College of Sciences, Shanghai University, Shanghai 200444, China
| | - Qixian Zhang
- School of Materials Science and Engineering, Shanghai University, Shanghai 200436, China
- Shaoxing Institute of Technology, Shanghai University, Shaoxing 312000, China
| | - Liqiang Luo
- College of Sciences, Shanghai University, Shanghai 200444, China
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Ma YY, Li Y, Huang HX, Qian DJ. Fabrication of Eu3+-dipicolinic acid complex functionalized nanoSiO2 composites and their Langmuir-Blodgett films as visual fluorescence probe for tetracycline and oxytetracycline. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Cao Y, Wang Z, Fu B, Li H, Zhang X, Guo DY, Li L, Pan Q. Bifunctional ratiometric fluorescent probe for sensing anthrax spore biomarker and tetracycline at different excitation channels. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121915. [PMID: 36179571 DOI: 10.1016/j.saa.2022.121915] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/24/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Multifunctional fluorescent probes have received increasing attention for the sake of atom economy and high-density integration. Herein, CdTe quantum dots (QDs) modified with Eu3+ were synthesized as the bifunctional ratiometric fluorescent probe for sensing two hazardous substances tetracycline (TC) and anthrax spore biomarker 2,6-dipicolinic acid (DPA) at different excitation channels, based on the discrepant excitation wavelengths of Eu3+ and the fluorescence quenching of CdTe QDs after interaction with them. Both DPA and TC enhanced the red emission of Eu3+ via antenna effect but caused the green emission of CdTe QDs to quench. Interestingly, the excitation wavelengths of Eu3+ after coordinating with DPA and TC were 275 and 386 nm, respectively. On this basis, CdTe QDs-Eu3+ achieved the bifunctional ratiometric detection of DPA (λex = 275 nm) and TC (λex = 386 nm) with different excitation channels. Both DPA and TC were selectively detected by CdTe QDs-Eu3+ with rapid response (DPA-1 min, TC-1 min) and high sensitivity (DPA-LOD 0.3 μM, TC-LOD 2.2 nM). CdTe QDs-Eu3+ were applied to analyzing DPA and TC in food, biological and environmental samples. Satisfactory spiked recoveries (80.0-119.0 %) and relative standard deviations (0.5-8.4 %) were obtained for measuring DPA and TC in these samples.
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Affiliation(s)
- Yatian Cao
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Ziqi Wang
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou 570228, China
| | - Bo Fu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Huihui Li
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou 570228, China.
| | - Xuanming Zhang
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Dong-Yu Guo
- Department of Clinical Laboratory, Xiamen Huli Guoyu Clinic, Co., Ltd., Xiamen 361000, China.
| | - Le Li
- NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine and Laboratory Medicine, Hainan Medical University, Haikou 571199, China
| | - Qinhe Pan
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Science, Hainan University, Haikou 570228, China; School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China.
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Xu Y, Shi X, Ran F, Zhang Z, Phipps J, Liu X, Zhang H. Differential sensitization toward lanthanide metal-organic framework for detection of an anthrax biomarker. Mikrochim Acta 2022; 190:27. [PMID: 36520274 DOI: 10.1007/s00604-022-05603-z] [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: 08/02/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022]
Abstract
A novel Tb-doped Eu-based metal-organic framework (Eu-MOF@Tb) has been developed by incorporating hexanuclear europium cluster and 2,2'-bipyridine-5,5'-dicarboxylic acid as well as coordination with Tb(III). Owing to the diverse coordination status of Tb(III) and Eu(III) in MOF, antenna effect emission from Tb(III) can be invoked by dipicolinic acid (DPA), but the luminescence originating from Eu(III) remains unchanged. Taking advantage of this phenomenon, a ratiometric luminescent method for detection of DPA, a biomarker for Bacillus subtilis spores, was developed through differential sensitization toward lanthanide ions. This analysis method allowed for the detection of DPA in the 0.2-10 μM concentration range, with a detection limit of 60 nM. It was further validated by spiked recoveries (89.3-110%) of real-world samples with RSD values in the range 3.9-11%. Alongside this, a paper indicator test was prepared for naked-eye detection of DPA via a dose-sensitive color evolution from red to green under UV light. The effectiveness of the proposed approach was explored in the detection of bacterial spores in real biological and environmental samples and indicated great potential for applications as a real-time monitoring system against the anthrax threat.
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Affiliation(s)
- Yixuan Xu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Xuerong Shi
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Fanpeng Ran
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Ziqi Zhang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Josh Phipps
- Department of Chemistry, University of North Texas, 1508 W Mulberry St, Denton, TX, 76201, USA
| | - Xiaoyan Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Haixia Zhang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
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Niu X, Wang M, Cao R, Zhang M, Liu Z, Liu Z, Hao F, Sheng L, Xu H. Ion exchange fabrication of lanthanide functionalized layered double hydroxides microcapsules for rapid and visual detection of anthrax biomarker. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 281:121622. [PMID: 35868056 DOI: 10.1016/j.saa.2022.121622] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/26/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Lanthanide ion probes have recently been considered as promising sensing materials due to their high sensitivity and good optical properties. Herein, the 3D hierarchical lanthanide functionalized layered double hydroxides microcapsules were synthesized via a facile ion exchange strategy and further developed as novel fluorescent probes for detecting trace amounts of the anthrax biomarker dipicolinicacid (DPA). Benefiting from the 3D porous superstructure and abundant unsaturated coordination sites of lanthanide ion, the ternary Ni-Fe-Ln-LDHs (Ln = Tb/Eu) not only possess a large reactive contact area to improve the sensitivity of DPA detection, but also demonstrate very fast reaction rate. The design of inexpensive fluorescent test strips can perform the on-site and real-time detection via a smartphone with a color recognition application. More prominently, the sensitivity of the system was evaluated by actual spore samples with the detection limit as low as 3.54 × 104 spores/mL. The 3D lanthanide functionalized LDHs nanoprobe constructed by ion exchange exhibits a new vision for the development of a sensing platform in other research areas.
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Affiliation(s)
- Xiaoxiao Niu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Meixiang Wang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Rui Cao
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Mengyu Zhang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Zhuangzhuang Liu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Zhaodi Liu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China.
| | - Fuying Hao
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Liangquan Sheng
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Huajie Xu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China.
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Sivakumar R, Lee NY. Recent advances in airborne pathogen detection using optical and electrochemical biosensors. Anal Chim Acta 2022; 1234:340297. [PMID: 36328717 PMCID: PMC9395976 DOI: 10.1016/j.aca.2022.340297] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/27/2022] [Accepted: 08/18/2022] [Indexed: 11/30/2022]
Abstract
The world is currently facing an adverse condition due to the pandemic of airborne pathogen SARS-CoV-2. Prevention is better than cure; thus, the rapid detection of airborne pathogens is necessary because it can reduce outbreaks and save many lives. Considering the immense role of diverse detection techniques for airborne pathogens, proper summarization of these techniques would be beneficial for humans. Hence, this review explores and summarizes emerging techniques, such as optical and electrochemical biosensors used for detecting airborne bacteria (Bacillus anthracis, Mycobacterium tuberculosis, Staphylococcus aureus, and Streptococcus pneumoniae) and viruses (Influenza A, Avian influenza, Norovirus, and SARS-CoV-2). Significantly, the first section briefly focuses on various diagnostic modalities applied toward airborne pathogen detection. Next, the fabricated optical biosensors using various transducer materials involved in colorimetric and fluorescence strategies for infectious pathogen detection are extensively discussed. The third section is well documented based on electrochemical biosensors for airborne pathogen detection by differential pulse voltammetry, cyclic voltammetry, square-wave voltammetry, amperometry, and impedance spectroscopy. The unique pros and cons of these modalities and their future perspectives are addressed in the fourth and fifth sections. Overall, this review inspected 171 research articles published in the last decade and persuaded the importance of optical and electrochemical biosensors for airborne pathogen detection.
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Affiliation(s)
- Rajamanickam Sivakumar
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, South Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, South Korea.
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15
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Leng X, Hao W, Yang X, Zhang Z, Li H, Ma Y, Cheng Y, Schipper D. Rapid and Reliable Excitation Wavelength-Dependent Detection of 2,6-Dipicolinic Acid Based on a Luminescent Cd(II)-Tb(III) Nanocluster. Inorg Chem 2022; 61:8484-8489. [PMID: 35610558 DOI: 10.1021/acs.inorgchem.2c00393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Cd(II)-Tb(III) nanocluster {[Cd10Tb9L8(OH)16(OAc)23(H2O)3][Cd10Tb9L8(OH)16(OAc)23(H2O)4]}·3H2O (1), which contains two crystallographically independent components, was constructed from a tridentate ligand (HL, 3-ethoxysalicylaldehyde). It exhibits rapid and reliable excitation wavelength-dependent luminescence response to 2,6-dipicolinic acid (DPA) [limit of detection = 0.23 nM], which is not influenced by aromatic carboxylates, amino acids, and ions. The test papers of 1 can be used to check DPA in solution. The equation IEx272nm/IEx329nm = 0.0109 × [DPA]2 + 0.106 × [DPA] + 2.39 of 1 for the luminescence response could be used to quantitatively measure the concentration of DPA in tap water. 1 displays rapid and stable luminescence response to DPA, with the sensing times shorter than 5 s and no changes for the lanthanide luminescence over 24 h.
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Affiliation(s)
- Xilong Leng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wenxin Hao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiaoping Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhen Zhang
- Tangshan Key Laboratory of Optoelectronic Materials, School of Physics and Technology, Tang Shan Normal University, Tangshan 063000, China
| | - Hao Li
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yanan Ma
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuebo Cheng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Desmond Schipper
- The University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station A5300, Austin, Texas 78712, United States
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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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Xie Q, Zhan Y, Guo L, Hao H, Shi X, Yang J, Luo F, Qiu B, Lin Z. A Ratiometric Fluorescence Probe for Selective Detection of ex vivo Methylglyoxal in Diabetic Mice. ChemistryOpen 2022; 11:e202200055. [PMID: 35543213 PMCID: PMC9092288 DOI: 10.1002/open.202200055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/15/2022] [Indexed: 11/12/2022] Open
Abstract
Accurate monitoring of methylglyoxal (MGO) at cell and living level was crucial to reveal its role in the pathogenesis of diabetes since MGO was closely related to diabetes. Herein, a ratiometric fluorescence strategy was constructed based on the capture probe 2,3-diaminonaphthalene (DAN) for the specific detection of MGO. Compared to the fluorescent probes with a single emission wavelength, the ratiometric mode by monitoring two emissions can effectively avoid the interference from the biological background, and provided additional self-calibration ability, which can realize accurate detection of MGO. The proposed method showed a good linear relationship in the range of 0-75 μm for MGO detection, and the limit of detection was 0.33 μm. DAN responded to MGO with good specificity and was successfully applied for detecting the ex vivo MGO level in plasma of KK-Ay mice as a type II diabetes model. Besides, the prepared DAN test strip can be visualized for rapid semi-quantitative analysis of MGO using the naked eye. Furthermore, human skin fibroblasts and HeLa cells were utilized for exogenous MGO imaging, and ex vivo MGO imaging was performed on tissues of KK-Ay mice. All results indicated that the DAN-based ratiometric fluorescence probe can be used as a potential method to detect the level of MGO, thus enabling indications for the occurrence of diabetes and its complications.
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Affiliation(s)
- Qunfang Xie
- Department of Cadre's WardThe First Affiliated Hospital of Fujian Medical UniversityFuzhouFujian, 350005P. R. China
| | - Yuanjin Zhan
- Institute of Nanomedicine and Nanobiosensing; MOE Key Laboratory for Analytical Science of Food Safety and BiologyFujian Provincial Key Laboratory of Analysis and Detection Technology for Food SafetyCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Longhua Guo
- College of Biological, Chemical Sciences and EngineeringJiaxing UniversityJiaxingZhejiang 314001P. R. China
| | - Huili Hao
- College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian 350116P. R. China
| | - Xianai Shi
- College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian 350116P. R. China
| | - Jianmin Yang
- College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian 350116P. R. China
| | - Fang Luo
- College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian 350116P. R. China
| | - Bin Qiu
- Institute of Nanomedicine and Nanobiosensing; MOE Key Laboratory for Analytical Science of Food Safety and BiologyFujian Provincial Key Laboratory of Analysis and Detection Technology for Food SafetyCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Zhenyu Lin
- Institute of Nanomedicine and Nanobiosensing; MOE Key Laboratory for Analytical Science of Food Safety and BiologyFujian Provincial Key Laboratory of Analysis and Detection Technology for Food SafetyCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
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18
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Pan C, Wen Q, Ma L, Qin X, Feng S. Novel water-dispersible silicon nanoparticles as a fluorescent and colorimetric dual-mode probe for emodin detection. NEW J CHEM 2021. [DOI: 10.1039/d1nj01775f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel fluorescent and colorimetric dual-mode sensing method based on water-dispersible SiNPs was constructed for the sensitive detection of emodin.
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Affiliation(s)
- Congjie Pan
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou
- China
| | - Qiaoqiao Wen
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou
- China
| | | | - Xuezhen Qin
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou
- China
| | - Suxiang Feng
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou
- China
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19
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Zhang M, Zhai X, Sun M, Ma T, Huang Y, Huang B, Du Y, Yan C. When rare earth meets carbon nanodots: mechanisms, applications and outlook. Chem Soc Rev 2020; 49:9220-9248. [PMID: 33165456 DOI: 10.1039/d0cs00462f] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Rare earth (RE) elements are widely used in the luminescence and magnetic fields by virtue of their abundant 4f electron configurations. However, the overall performance and aqueous stability of single-component RE materials need to be urgently improved to satisfy the requirements for multifunctional applications. Carbon nanodots (CNDs) are excellent nanocarriers with abundant functional surface groups, excellent hydrophilicity, unique photoluminescence (PL) and tunable features. Accordingly, RE-CND hybrids combine the merits of both RE and CNDs, which dramatically enhance their overall properties such as luminescent and magnetic-optical imaging performances, leading to highly promising practical applications in the future. Nevertheless, a comprehensive review focusing on the introduction and in-depth understanding of RE-CND hybrid materials has not been reported to date. This review endeavors to summarize the recent advances of RE-CNDs, including their interaction mechanisms, general synthetic strategies and applications in fluorescence, biosensing and multi-modal biomedical imaging. Finally, we present the current challenges and the possible application perspectives of newly developed RE-CND materials. We hope this review will inspire new design ideas and valuable references in this promising field in the future.
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Affiliation(s)
- Mengzhen Zhang
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.
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