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Jie M, Lan S, Zhu B, Zhu A, Yue X, Xiang Q, Bai Y. Europium functionalized porphyrin-based metal-organic framework heterostructure and hydrogel for visual ratiometric fluorescence sensing of sulfonamides in foods. Food Chem 2024; 458:140304. [PMID: 38970961 DOI: 10.1016/j.foodchem.2024.140304] [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: 03/24/2024] [Revised: 06/16/2024] [Accepted: 06/30/2024] [Indexed: 07/08/2024]
Abstract
Protecting human health and ensuring food security require the swift and accurate detection of sulfonamides (SAs) residues in foods. Herein, we proposed an Eu-postfunctionalized bimetallic porphyrin metal-organic framework (PCN-221(Zr/Ce)@Eu-DPA-H4btec) synthesized solvothermally for fluorescence sensing. The PCN-221(Zr/Ce)@Eu-DPA-H4btec fluorescent sensor demonstrated excellent stability and high selectivity to SAs, and the detection limits of sulfamethazine (SM2), sulfamerazine (SMR), and sulfamethoxydiazine (SMD) were as low as 56 nmol/L, 45 nmol/L, and 56 nmol/L, respectively. The PCN-221(Zr/Ce)@Eu-DPA-H4btec fluorescent sensor was successfully applied for the detection of SM2, SMR, and SMD in real pork and milk samples, with satisfactory recoveries (81.2-118.3%) and high precisions (RSDs <8.2, n = 3). Combining the optical properties of the nanohybrids, PCN-221(Zr/Ce)@Eu-DPA-H4btec integrated fluorescent hydrogels were innovatively prepared for visual sensing of SM2, SMR, and SMD. This study provides an uncomplicated and sensitive method for SAs detection in food matrices.
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Affiliation(s)
- Mingsha Jie
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou, 450001, China
| | - Shengkai Lan
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Bing Zhu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Amei Zhu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Xiaoyue Yue
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou, 450001, China
| | - Qisen Xiang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou, 450001, China
| | - Yanhong Bai
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou, 450001, China.
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2
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Li XY, Long QH, Pan Z, Ma XH, Xia C, Mai X, Li N. Integrated Eu 3+ loaded covalent organic framework with smartphone for ratiometric fluorescence detection of tetracycline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124610. [PMID: 38852306 DOI: 10.1016/j.saa.2024.124610] [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: 04/09/2024] [Revised: 05/29/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Developing rapid tetracycline sensing system is of great significance to monitor the illegal addition to drugs and pollution to food and ecosystem. By loading covalent organic frameworks (COFs) with Eu3+, a new hybridized material (COF@Eu3+) was prepared for tetracycline determination. Based on the Schiff base reaction, the COFs were by synthesized through solvent evaporation in 30 min at room temperature. Thereafter, Eu3+ was modified into COFs to develop the COF@Eu3+ sensing platform by adsorption and coordination. In presence of tetracycline, tetracycline can displace water molecules and coordinate with Eu3+ through the antenna effect. As a result, the red fluorescence of Eu3+ was enhanced by tetracycline with green fluorescence of COF as a reference. The developed ratiometric fluorescence sensor exhibits a linear range of 0.1-20 μM for detecting tetracycline with a detection limit of 30 nM. Integrated with a smartphone, the rapid tetracycline detection can be realized in situ, which is potential for high-throughput screening of tetracycline contaminated samples. Furthermore, the COF@Eu3+ fluorescence sensor has been successfully applied to the detection of tetracycline in traditional Chinese medicine compound preparation with satisfied recoveries. Therefore, a smartphone-assisted device was successfully developed based on Eu3+-functionalized COF, which is an attractive candidate for further applications of fluorescence sensing and visual detection.
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Affiliation(s)
- Xin Yuan Li
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China
| | - Qing Hong Long
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China
| | - Zhoujian Pan
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China
| | - Xiao Han Ma
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China
| | - Chunhua Xia
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China; Jiangxi Key Laboratory of Clinical Pharmacokinetics, Nanchang 330031, PR China
| | - Xi Mai
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China.
| | - Na Li
- Pharmaceutical School, Nanchang University, Nanchang 330006, PR China.
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Wang Y, Sun X, Zhou Y, Liu J, Zhu H, Jiang R, Miao Y, Fu Y. A ratiometric fluorescent probe based on UiO-66-TCPP for selective and visual detection of quercetin in food. Food Chem 2024; 457:140198. [PMID: 38936127 DOI: 10.1016/j.foodchem.2024.140198] [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: 04/03/2024] [Revised: 06/07/2024] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Abstract
Quercetin (QCT) is a flavonoid with significant health benefits, necessitating sensitive detection methods for food safety and quality control. This study presents a novel UiO-66-TCPP ratiometric fluorescent probe for the quantitative and visual detection of QCT. Under optimal conditions, the fluorescence intensity of UiO-66-TCPP decreased linearly with increasing QCT concentration, with a detection limit of 26 nM. The probe demonstrated high specificity, showing no significant interference from various substances and QCT analogues. Practical applicability was confirmed by testing artificially contaminated juice samples, achieving recovery rates between 98.0% and 104.8%. Furthermore, a paper-based sensor was developed by incorporating UiO-66-TCPP onto Whatman#1 chromatography paper. This sensor exhibited stable fluorescence and a reliable, sensitive visual response to QCT concentrations, detectable via a smartphone-based color recognizer application. The UiO-66-TCPP ratiometric fluorescent probe provides a sensitive, specific, and practical method for detecting QCT in food matrices, offering significant potential for both laboratory and on-site applications.
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Affiliation(s)
- Yiran Wang
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China; School of Food Sciences and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu Province, PR China
| | - Xiaolong Sun
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China
| | - Yufeng Zhou
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China; School of Food Sciences and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu Province, PR China
| | - Jiachen Liu
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China; School of Food Sciences and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu Province, PR China
| | - Huayue Zhu
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China
| | - Ru Jiang
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China
| | - Yingjie Miao
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China.
| | - Yongqian Fu
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, School of Life Sciences, Taizhou University, Taizhou 318000, Zhejiang Province, PR China.
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Yue F, Zhao X, Chen X, Li Y, Huang Y, Zhao D, Xu J, Jia L, Zhao T. A dual-channel sensing platform for the cross-interference-free detection of tetracycline and copper ion. Talanta 2024; 279:126617. [PMID: 39084037 DOI: 10.1016/j.talanta.2024.126617] [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: 05/21/2024] [Revised: 07/06/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024]
Abstract
Tetracycline (TC) and copper ion (Cu2+), as important additives in animal feed, play a crucial role in disease prevention and growth regulation. However, the abuse leads to concentration accumulation, which seriously threatens human health and the ecological environment. There is an urgent need to develop a detection method to achieve fast and synchronous detection of these pollutants without cross-interference. Here, a carbon dots-doped lanthanide-based fluorescent nanosensor (CDs@Tb-MOFs@SiO2-NH2-Eu) was synthesized, which can detect TC in the 380 nm channel by "antenna effect" and internal filtering effects (IFE), and identify Cu2+ in the 320 nm channel. The sensor was highly sensitive to TC within 0-4 μM with a detection limit as low as 3.64 nM, and Cu2+ could be detected within 0-40 μM with a detection limit of 38 nM. A portable dual-channel visual fluorescence sensor was obtained by loading the probes onto test paper and cotton swabs in food samples, which indicates the practicability of this sensing strategy.
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Affiliation(s)
- Fengzhi Yue
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Xiaolei Zhao
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
| | - Xiangzhen Chen
- 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
| | - Dan Zhao
- 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.
| | - Lei Jia
- 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.
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Cai W, Xin T, Tu Y, Sun L, Liao G, Liu G, Fan C. A near-infrared turn-on fluorescent probe for the detection of hydrogen sulfide in water samples and food spoilage. Anal Chim Acta 2024; 1320:342992. [PMID: 39142769 DOI: 10.1016/j.aca.2024.342992] [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: 01/27/2024] [Revised: 07/05/2024] [Accepted: 07/18/2024] [Indexed: 08/16/2024]
Abstract
Hydrogen sulfide (H2S) is a poisonous pollutant that endangers the environment, and H2S is also produced during food spoilage. Herein, we constructed a dicyanoisophorone-based near-infrared (NIR) fluorescent probe (DCID) to detect H2S. DCID exhibited significant turn-on fluorescence at 700 nm with a low limit of detection (LOD = 74 nM), large Stokes shift (220 nm), prominent selectivity, and response time (100 s) toward H2S. Importantly, the DCID probe had powerful applications in the detection of H2S in environmental samples and food spoilage. In addition, based on DCID-loaded test strips and combined a smartphone sensing platform, which provided a portable and convenient approach for the detection of H2S.
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Affiliation(s)
- Wenjuan Cai
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China
| | - Tian Xin
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China
| | - Yayi Tu
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China
| | - Leilei Sun
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China.
| | - Guanming Liao
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China
| | - Congbin Fan
- Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China.
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Chen X, Xu J, Li Y, Huang Y, Zhang L, Bi N, Gou J, Zhao T, Jia L. Recent progress in lanthanide-based fluorescent nanomaterials for tetracycline detection and removal. Mikrochim Acta 2024; 191:531. [PMID: 39134877 DOI: 10.1007/s00604-024-06607-7] [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: 05/14/2024] [Accepted: 07/28/2024] [Indexed: 08/15/2024]
Abstract
Tetracycline (TC) has been widely used in clinical medicine and animal growth promotion due to its broad-spectrum antibacterial properties and affordable prices. Unfortunately, the high toxicity and difficult degradation rate of TC molecules make them easy to accumulate in the environment, which breaks the ecological balance and seriously threatens human health. Rapid and accurate detection of TC residue levels is important for ensuring water quality and food safety. Recently, fluorescence detection technology of TC residues has developed rapidly. Lanthanide nanomaterials, based on the high luminescence properties of lanthanide ions and the high matching with TC energy levels, are favored in the real-time trace detection of TC due to their advantages of high sensitivity, rapidity, and high selectivity. Therefore, they are considered potential substitutes for traditional detection methods. This review summarizes the synthesis strategy, TC response mechanism, removal mechanism, and applications in intelligent sensing. Finally, the development of lanthanide nanomaterials for TC fluorescence detection and removal is reasonably summarized and prospected. This review provides a reference for the establishment of a method for the accurate determination of TC content in complex food matrices.
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Affiliation(s)
- Xiangzhen Chen
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Jun Xu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China.
| | - Yongxin Li
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Yuanyuan Huang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Lina Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Ning Bi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Jian Gou
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Tongqian Zhao
- Institute of Resources & Environment, Henan Polytechnic University, Jiaozuo, 454000, Henan, China.
| | - Lei Jia
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China.
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7
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Xie HH, Wang LW, Tang SF. Fabrication of a Terbium-Functionalized Cadmium Organic Framework with Proper Energy Levels as a Ratiometric Probe of an Anthrax Biomarker. Inorg Chem 2024; 63:13516-13524. [PMID: 38959250 DOI: 10.1021/acs.inorgchem.4c01644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Anthrax bacillus is a very dangerous zoonotic pathogen that seriously endangers public health. Rapid and accurate qualitative and quantitative detection of its biomarkers, 2,6-dipicolinic acid (DPA), is crucial for the prevention and treatment of this pathogenic bacterium. In this work, a novel Cd-based MOF (TTCA-Cd) has been synthesized from a polycarboxylate ligand, [1,1':2',1″-terphenyl]-4,4',4″,5'-tetracarboxylic acid (H4TTCA), and further doped with Tb(III), forming a dual-emission lanthanide-functionalized MOF hybrid (TTCA-Cd@Tb). TTCA-Cd@Tb can be developed as a high-performance ratiometric fluorescent sensor toward DPA with a very low detection limit of 7.14 nM and high selectivity in a wide detection range of 0-200 μM, demonstrating a big advancement and providing a new option for the detection of DPA.
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Affiliation(s)
- Hui-Hui Xie
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China
| | - Li-Wen Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China
| | - Si-Fu Tang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China
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Cheng Z, Liu X, Zhao B, Liu X, Yang X, Zhang X, Feng X. A smartphone-integrated test paper sensing platform for visual and intelligent detection of nitrofurantoin in honey samples. Food Chem 2024; 445:138783. [PMID: 38417194 DOI: 10.1016/j.foodchem.2024.138783] [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: 12/07/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 03/01/2024]
Abstract
The development of a rapid and convenient detection method for nitrofurantoin (NFT) residual is of great significance for food safety. Herein, a new fluorescent probe (Eu-TDCA-Phen) was developed for the visual and sensitive assay of NFT through the fluorescence quenching effect of inner filter effect (IFE) and photo-induced electron transfer (PET). The probe suspension demonstrates a wide linear range (0-0.16 mM), low detection limit (90 nM), high sensitivity, and rapid response time (2 min) in the "turn-off" process. To quantify the visual detection process, a smartphone-assisted test paper sensing platform was established and was applied for NFT determination in real honey samples, achieving satisfactory recovery rate ranges from 98.04 % to 105.04 %. Furthermore, a logic gate device was integrated with the sensing platform to streamline the visual detection process. The sensing platform offers several merits, including simpleness, quantification, portability and cost-effectiveness, making it highly suitable for real-time and on-site detection of antibiotics in food samples.
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Affiliation(s)
- Zheng Cheng
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China; College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
| | - Xinfang Liu
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China.
| | - Beibei Zhao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China; College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
| | - Xu Liu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China; College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
| | - Xiaorui Yang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471022, China; College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, 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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Tian J, Tu Q, Li M, Zhao L, Zhu Y, Lee JH, Gai Z, Zhao G, Ma Y. Development of fluorescent GO-AgNPs-Eu 3+ nanoparticles based paper visual sensor for foodborne spores detection. Food Chem X 2024; 21:101069. [PMID: 38292686 PMCID: PMC10825364 DOI: 10.1016/j.fochx.2023.101069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 02/01/2024] Open
Abstract
Foodborne spores are ubiquitous with extremely strong resistance, and pose a serious threat to food safety and human health. Therefore, rapid, sensitive, and selective detection of spores are crucial. In this study, a fluorescent probe was developed based on lanthanide ion (Eu3+)-labeled nano-silver-modified graphene oxide (GO-AgNPs-Eu3+) for the detection of 2,6-dipicolinic acid (DPA), a biomarker unique to spores, to allow quantitative spores detection. The GO-AgNPs-Eu3+ nano-fluorescent probe was loaded onto a polyvinylidene fluoride microfiltration membrane, and a smartphone-assisted portable GO-AgNPs-Eu3+ nanoparticles-based paper visual sensor was designed for rapid on-site quantitative and real-time online detection of spores. The results indicated that the developed probe achieved equilibrium binding with DPA within 5 min, and enhanced fluorescence emission through antenna effect. The fluorescence detection presented a good linear relationship in the DPA concentration range of 0-45 μM, with a DPA detection limit of 4.62 nM and spore detection limit of 104 cfu/mL. The developed sensor showed a change in fluorescence from blue to red with increasing DPA concentration, and this color change was quantitatively detected through smartphone RGB variations, with a detection limit of 13.1 μM for DPA and 6.3 cfu/mL for Bacillus subtilis spores. Subsequently, the sensitivity and selectivity of the developed sensor were verified using actual milk and water samples spiked with B. subtilis spores. The results of this study provided objective technological support for rapid detection of spores, which is important for reducing the occurrence of foodborne diseases and improving food safety.
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Affiliation(s)
- Jiaqi Tian
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Qiancheng Tu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Miaoyun Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Lijun Zhao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yaodi Zhu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
- Henan Jiuyuquan Food Co., LTD. Postdoctoral Innovation Base, Henan Province, Yuanyang 453500, PR China
| | | | - Zhengyan Gai
- Henan Jiuyuquan Food Co., LTD. Postdoctoral Innovation Base, Henan Province, Yuanyang 453500, PR China
| | - Gaiming Zhao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yangyang Ma
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, PR China
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10
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Li Y, Feng K, Li M, Li H, Zhang W, Yang X, Chen Y, Zheng L, Hsieh S, Yan B. A dual-mode ratiometric probe using europium-doped cyclen-functional carbon dots for fluorescent and point-of-care detection of tetracycline. ENVIRONMENTAL TECHNOLOGY 2024:1-9. [PMID: 38522072 DOI: 10.1080/09593330.2024.2323027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/18/2024] [Indexed: 03/26/2024]
Abstract
The overuse of tetracycline (TC) has led to the accumulation of antibiotic residues in drinking water and animal products, which can consequently lead to bacteria resistance and chronic disease in humans. Urgently addressing the need for a rapid, user-friendly, and point-of-care test for TC detection. In this work, we use cyclen and citric acid to synthesise carbon dots (CDs) with a unique ring-shaped structure on their surface and combine them with europium (Eu3+) to form an Eu-CDs fluorescent probe. In the presence of TC in aqueous systems, the Eu-CDs probe emits two distinctive fluorescent signals: the stable blue emission from cyclen-modified CDs and the red emission from Eu3+,showing a proportional increase with TC concentration. The developed Eu-CDs probe demonstrates accurate and selective detection capabilities for TC class antibiotics among various interfering factors. The Eu-CDs probe exhibits excellent linearity within the concentration range of 0.04-2.4 µM and achieves an impressive detection limit of 2.7 nM. Moreover, point-of-care Eu-CDs test strips are designed, allowing convenient on-site TC analysis through the detection of a colour change from blue to red under a portable UV light. The results highlight the effectiveness of the proposed dual-mode ratiometric fluorescent Eu-CDs probe and test strips, offering a practical point-of-care testing strategy for real-world TC detection applications.
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Affiliation(s)
- Yuanhua Li
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, People's Republic of China
| | - Kejun Feng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Mingzhu Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, Shantou University, Guangdong, People's Republic of China
| | - Huiling Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, People's Republic of China
| | - Weiluo Zhang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Xiaofang Yang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Yuan Chen
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Lei Zheng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - ShihHuan Hsieh
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
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Xie HH, Han L, Tang SF. Terbium doping and energy level modification of zirconium organic frameworks as probes for the improved determination of histamine and visual inspection of food freshness. Food Chem 2024; 433:137314. [PMID: 37678118 DOI: 10.1016/j.foodchem.2023.137314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 08/16/2023] [Accepted: 08/27/2023] [Indexed: 09/09/2023]
Abstract
Food safety is a common concern among people, and the development of high-performance food freshness detection technology is crucial, but is still highly challenging. Fluorescent sensing based on metal organic frameworks is a promising technology to tackle this issue. In this work, three UiO-66 type Zirconium organic frameworks (ZrOFs) which are functionalized with varying numbers of hydroxyl groups to alter the energy levels, and partial replacement of Zirconium(IV) by Terbium(III) ions to introduce additional emitting centers, were explored as probes for the sensing of Histamine (His). With one hydroxyl group introduced, UiO-66-OH@Tb can be developed as ratiometric fluorescent probe with improved sensing performance, showing a wide detection range of 0 to 120 mg/L, and a low detection limit of 0.13 mg/L. UiO-66-OH@Tb can also be fabricated into composite film to function as visual sensing material of His. This work can provide instructions for the development of other fluorescent sensors.
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Affiliation(s)
- Hui-Hui Xie
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China
| | - Lei Han
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China
| | - Si-Fu Tang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China.
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