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Ou X, Li K, Liu M, Song J, Zuo Z, Guo Y. EXPAR for biosensing: recent developments and applications. Analyst 2024; 149:4135-4157. [PMID: 39034763 DOI: 10.1039/d4an00609g] [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: 07/23/2024]
Abstract
Emerging as a promising novel amplification technique, the exponential amplification reaction (EXPAR) offers significant advantages due to its potent exponential amplification capability, straightforward reaction design, rapid reaction kinetics, and isothermal operation. The past few years have witnessed swift advancements and refinements in EXPAR-based technologies, with numerous high-performance biosensing systems documented. A deeper understanding of the EXPAR mechanism has facilitated the proposal of novel strategies to overcome limitations inherent to traditional EXPAR. Furthermore, the synergistic integration of EXPAR with diverse amplification methodologies, including the use of a CRISPR/Cas system, metal nanoparticles, aptamers, alternative isothermal amplification techniques, and enzymes, has significantly bolstered analytical efficacy, aiming to enhance specificity, sensitivity, and amplification efficiency. This comprehensive review presents a detailed exposition of the EXPAR mechanism and analyzes its primary challenges. Additionally, we summarize the latest research advancements in the biomedical field concerning the integration of EXPAR with diverse amplification technologies for sensing strategies. Finally, we discuss the challenges and future prospects of EXPAR technology in the realms of biosensing and clinical applications.
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Affiliation(s)
- Xinyi Ou
- Nanobiosensing and Microfluidic Point-of-Care Testing, Key Laboratory of Luzhou, Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China.
- Department of Laboratory Medicine, The Affiliated Hospital, Southwest Medical University, PR China
| | - Kunxiang Li
- Nanobiosensing and Microfluidic Point-of-Care Testing, Key Laboratory of Luzhou, Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China.
- Department of Laboratory Medicine, The Affiliated Hospital, Southwest Medical University, PR China
| | - Miao Liu
- Nanobiosensing and Microfluidic Point-of-Care Testing, Key Laboratory of Luzhou, Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China.
| | - Jiajun Song
- Nanobiosensing and Microfluidic Point-of-Care Testing, Key Laboratory of Luzhou, Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China.
- Department of Laboratory Medicine, The Affiliated Hospital, Southwest Medical University, PR China
| | - Zhihua Zuo
- Department of Clinical Laboratory, Nanchong Central Hospital, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, Sichuan, 637003, PR China.
| | - Yongcan Guo
- Nanobiosensing and Microfluidic Point-of-Care Testing, Key Laboratory of Luzhou, Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China.
- Department of Laboratory Medicine, The Affiliated Hospital, Southwest Medical University, PR China
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2
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Guan L, Wang W, Zhang X, Zhang Y, Wu J, Xue W, Huang S. Functionalized Green Carbon dots for Specific Detection of Copper in Human Serum Samples and Living Cells. J Fluoresc 2024:10.1007/s10895-024-03586-z. [PMID: 38421599 DOI: 10.1007/s10895-024-03586-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/09/2024] [Indexed: 03/02/2024]
Abstract
Intracellular copper ion (Cu2+) is irreplaceable and essential in regulation of physiological and biological processes, while excessive copper from bioaccumulation may cause potential hazards to human health. Hence, effective and sensitive recognition is urgently significant to prevent over-intake of copper. In this work, a novel highly sensitive and green carbon quantum dots (Green-CQDs) were synthesized by a low-cost and facile one-step microwave auxiliary method, which utilized gallic acid, carbamide and PEG400 as carbon source, nitrogen source and surface passivation agent, respectively. The decreased fluorescence illustrated excellent linear relationship with the increasing of Cu2+ concentration in a wide range. Substantial surface amino and hydroxyl group introduced by PEG400 significantly improved selectivity and sensitivity of Green-CQDs. The surface amino chelation mechanism and fluorescence internal filtration effect were demonstrated by the restored fluorescence after addition of EDTA. Crucially, the nanosensor illustrated good cell permeability, high biocompatibility and recovery rate, significantly practical application in fluorescent imaging and biosensing of intracellular Cu2+ in HepG-2 cells, which revealed a potential and promising biological applications in early diagnosis and treatment of copper ion related disease.
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Affiliation(s)
- Lijiao Guan
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Wenxian Wang
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Xianfen Zhang
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Yuding Zhang
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Jiyong Wu
- Department of Pharmacy, Shandong Second Provincial General Hospital, Jinan, Shandong, China, 250022.
| | - Weiming Xue
- School of Chemical Engineering, Northwest University, Xi'an, PR China.
| | - Saipeng Huang
- School of Chemical Engineering, Northwest University, Xi'an, PR China.
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3
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Hu X, Zhou S, Zhang X, Zeng H, Guo Y, Xu Y, Liang Q, Wang J, Jiang L, Kong B. Superassembled MXene-carboxymethyl chitosan nanochannels for the highly sensitive recognition and detection of copper ions. Analyst 2024; 149:1464-1472. [PMID: 38284827 DOI: 10.1039/d3an02190d] [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: 01/30/2024]
Abstract
Copper ions (Cu2+), as a crucial trace element, play a vital role in living organisms. Thus, the detection of Cu2+ is of great significance for disease prevention and diagnosis. Nanochannel devices with an excellent nanoconfinement effect show great potential in recognizing and detecting Cu2+ ions. However, these devices often require complicated modification and treatment, which not only damages the membrane structure, but also induces nonspecific, low-sensitivity and non-repeatable detection. Herein, a 2D MXene-carboxymethyl chitosan (MXene/CMC) freestanding membrane with ordered lamellar channels was developed by a super-assembly strategy. The introduction of CMC provides abundant space charges, improving the nanoconfinement effect of the nanochannel. Importantly, the CMC can chelate with Cu2+ ions, endowing the MXene/CMC with the ability to detect Cu2+. The formation of CMC-Cu2+ complexes decreases the space charges, leading to a discernible variation in the current signal. Therefore, MXene/CMC can achieve highly sensitive and stable Cu2+ detection based on the characteristics of nanochannel composition. The linear response range for Cu2+ detection is 10-9 to 10-5 M with a low detection limit of 0.095 nM. Notably, MXene/CMC was successfully applied for Cu2+ detection in real water and fetal bovine serum samples. This work provides a simple, highly sensitive and stable detection platform based on the properties of the nanochannel composition.
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Affiliation(s)
- Xiaomeng Hu
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
| | - Shan Zhou
- College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Xin Zhang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
| | - Hui Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
| | - Yaxin Guo
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
| | - Yeqing Xu
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
| | - Qirui Liang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266400, P. R. China
| | - Jinqiang Wang
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Lei Jiang
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China.
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang 322000, P. R. China
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Zhang Q, Ma S, Zhan X, Meng W, Wang H, Liu C, Zhang T, Zhang K, Su S. Smartphone-based wearable microfluidic electrochemical sensor for on-site monitoring of copper ions in sweat without external driving. Talanta 2024; 266:125015. [PMID: 37541004 DOI: 10.1016/j.talanta.2023.125015] [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: 05/31/2023] [Revised: 07/25/2023] [Accepted: 07/29/2023] [Indexed: 08/06/2023]
Abstract
The directional movement of liquid without exogenous drive can show great potential in portable electrochemical platforms. Herein, we developed a portable electrochemical platform that drove electrolyte flow by surface tension gradient, which can realize collection of electrolyte, flow preconcentration and electrochemical detection of Cu2+. The induced graphene electrodes (LIG) was fabricated using laser direct writing, and flower cluster shaped ZnO nanorods (FC-ZnONRs) were prepared and modified on LIG, which provided a large amount of space for electrolyte to shuttled between the holes of LIG and ZnO, and increased the electrochemical active sites and electrons transport ability. The effect of surface tension gradients driving fluid flow could accelerate preconcentration, shorten detection time (save 300 s of preconcentration time) and enhance electrochemical responses in synergy with the 3D FC-ZnONRs/LIG. The microfluidic system possessed excellent performance for detection of Cu2+ ranged from 1 μg L-1 to 2100 μg L-1 with a low detection limit (LOD) of 0.0368 μg L-1 and high sensitivity of 0.414 μA (μg L-1)-1 cm-2. Additionally, this portable microfluidic system was successfully worn on the skin for analysing Cu2+ in human sweat, and the results showed good consistency with inductively coupled plasma-mass spectrometry (ICP-MS). This novel sensing system provides a sample collection, rapid detection, low cost and easy-to-operate strategy for heavy metal ions analysis in real samples and shows huge application prospects in point-of-care testing.
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Affiliation(s)
- Qing Zhang
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
| | - Shangshang Ma
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China; School of Chemical Engineering&Technology, China University of Mining and Technology, Xuzhou, 221100, China.
| | - Xijie Zhan
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
| | - Wanghan Meng
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
| | - Hongyan Wang
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
| | - Chao Liu
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
| | - Tianren Zhang
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
| | - Keying Zhang
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China.
| | - Shao Su
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
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Zhang S, Shao H, Li KB, Shi W, Han DM. Nanofluidic sensing platform for PNK assay using nonlinear hybridization chain reaction and its application in DNA logic circuit. Biosens Bioelectron 2023; 240:115632. [PMID: 37647684 DOI: 10.1016/j.bios.2023.115632] [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: 05/07/2023] [Revised: 08/14/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
In this study, a polyethyleneimine (PEI)/Zr4+-functionalized nanofluidic sensing platform based on nonlinear hybridization chain reaction (NHCR) was developed for PNK activity assay. With the existence of PNK, the hairpin HPNK was cleaved by λ exonuclease, liberating the initiator T-DNA. Then T-DNA triggered the nonlinear HCR in solution and the reaction products were absorbed onto the nanopore, which changed the surface charge of nanofluidic device and could be detected by current-voltage characteristic curves. Compared to traditional linear HCR, the nonlinear HCR exhibits a higher sensitivity and order of growth kinetics, making it a powerful signal amplifier in bioanalysis. Due to the powerful amplification efficiency of nonlinear HCR, high sensitivity of the nanopore and specific recognition site of PNK/λ-Exo, an ultrasensitive and selective PNK sensing approach had been developed and applied to precisely quantitate the PNK activity with a LOD of 0.0001 U/mL. Moreover, utilizing this nanofluidic system as a foundation, we constructed a logic circuit that utilized PNK, adenosine diphosphate (ADP), and (NH4)2SO4 as input elements. ADP and (NH4)2SO4 had a crucial function in facilitating the PNK to regulate the DNA logic gate. By modifying the target and inhibitors, the nanofluidic device could detect a variety of stimuli and execute more advanced logical operations.
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Affiliation(s)
- Siqi Zhang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Huahao Shao
- Zhijiang College of Zhejiang University of Technology, Shaoxing, Zhejiang, 312000, China
| | - Kai-Bin Li
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China.
| | - Wei Shi
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - De-Man Han
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China.
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Li J, Du Z, Wang P, Chen K, Lin S, Xu W, Zhu L. A turn-on signal biosensor for cadmium(II) based on DNAzyme and stem-loop qPCR. Anal Chim Acta 2023; 1279:341827. [PMID: 37827645 DOI: 10.1016/j.aca.2023.341827] [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: 05/09/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/14/2023]
Abstract
Cadmium is a heavy metal that is exceedingly hazardous to humans and can enter the body through tainted food or drink, causing severe harm. It is critical to develop a technology for detecting cadmium in food and water that is sensitive and accurate. One such approach, which employs nucleases, is uncommon. A cadmium(II) turn-on biosensor was successfully created in this work using repetitive cleavage of certain specific nucleases for signal conversion and sophisticated stem-loop qPCR (quantitative polymerase chain reaction) for quick signal amplification and output. The method has strong selectivity and sensitivity for precise quantification, with a detection limit of 6 nmol L-1, i.e. 0.948 g L-1, which is far lower than the 5.0 g L-1 set by the United States Environmental Protection Agency, and it also operates well in retail rice samples.
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Affiliation(s)
- Jiale Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Zaihui Du
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Pengfei Wang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Keren Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Shenghao Lin
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China.
| | - Longjiao Zhu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China.
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7
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Huang Y, Liu L, Luo C, Liu W, Lou X, Jiang L, Xia F. Solid-state nanochannels for bio-marker analysis. Chem Soc Rev 2023; 52:6270-6293. [PMID: 37581902 DOI: 10.1039/d2cs00865c] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Bio-markers, such as ions, small molecules, nucleic acids, peptides, proteins and cells, participate in the construction of living organisms and play important roles in biological processes. It is of great significance to accurately detect these bio-markers for studying their basic functions, the development of molecular diagnosis and to better understand life processes. Solid-state nanochannel-based sensing systems have been demonstrated for the detection of bio-markers, due to their rapid, label-free and high-throughput screening, with high sensitivity and specificity. Generally, studies on solid-state nanochannels have focused on probes on the inner-wall (PIW), ignoring probes on the outer-surface (POS). As a result, the direct detection of cells is difficult to realize by these inner-wall focused nanochannels. Moreover, the sensitivity for detecting ions, small molecules, nucleic acids, peptides and proteins requires further improvement. Recent research has focused on artificial solid-state nanochannels with POS, which have demonstrated the ability to independently regulate ion transport. This design not only contributes to the in situ detection of large analytes, such as cells, but also provides promising opportunities for ultra-high sensitivity detection with a clear mechanism. In this tutorial review, we present an overview of the detection principle used for solid-state nanochannels, inner-wall focused nanochannels and outer-surface focused nanochannels. Furthermore, we discuss the remaining challenges faced by current nanochannel technologies and provide insights into their prospects.
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Affiliation(s)
- Yu Huang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
- Zhejiang Institute, China University of Geosciences, Hangzhou, 311305, China
| | - Lingxiao Liu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Cihui Luo
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Wei Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210046, China
| | - Xiaoding Lou
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of the Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
- Zhejiang Institute, China University of Geosciences, Hangzhou, 311305, China
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Pei R, Ye L, Jing C. Enzyme-based electrochemical biosensor for antimonite detection in water. Biosens Bioelectron 2023; 229:115244. [PMID: 36966618 DOI: 10.1016/j.bios.2023.115244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/17/2023] [Accepted: 03/19/2023] [Indexed: 03/31/2023]
Abstract
Antimonite (SbIII) is a naturally occurring contaminant demanding on-site ultrasensitive detection. The enzyme-based electrochemical (EC) biosensors are promising, but the lack of specific SbIII oxidizing enzymes hindered the past efforts. Herein, we modulated the specificity of arsenite oxidase AioAB toward SbIII by regulating its spatial conformation from tight to loose using the metal-organic framework ZIF-8. The constructed EC biosensor, AioAB@ZIF-8, exhibited the substrate specificity toward SbIII at 12.8 s-1 μM-1, an order of magnitude higher than that of AsIII (1.1 s-1 μM-1). Relaxing AioAB structure in ZIF-8 was evidenced by the break of the S-S bond and the conversion of α helix to the random coil as suggested by Raman spectroscopy. Our AioAB@ZIF-8 EC sensor exhibited a dynamic linear range in 0.041-4.1 μM at a response time of 5 s, and the detection limit at 0.041 μM at a high sensitivity of 1894 nA μM-1. The insights into tuning the specificity of an enzyme shed new light on biosensing metal(loid)s without specific proteins.
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Jiang H, Li Y, Lv X, Deng Y, Li X. Recent advances in cascade isothermal amplification techniques for ultra-sensitive nucleic acid detection. Talanta 2023; 260:124645. [PMID: 37148686 PMCID: PMC10156408 DOI: 10.1016/j.talanta.2023.124645] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/30/2023] [Accepted: 05/03/2023] [Indexed: 05/08/2023]
Abstract
Nucleic acid amplification techniques have always been one of the hot spots of research, especially in the outbreak of COVID-19. From the initial polymerase chain reaction (PCR) to the current popular isothermal amplification, each new amplification techniques provides new ideas and methods for nucleic acid detection. However, limited by thermostable DNA polymerase and expensive thermal cycler, PCR is difficult to achieve point of care testing (POCT). Although isothermal amplification techniques overcome the defects of temperature control, single isothermal amplification is also limited by false positives, nucleic acid sequence compatibility, and signal amplification capability to some extent. Fortunately, efforts to integrating different enzymes or amplification techniques that enable to achieve intercatalyst communication and cascaded biotransformations may overcome the corner of single isothermal amplification. In this review, we systematically summarized the design fundamentals, signal generation, evolution, and application of cascade amplification. More importantly, the challenges and trends of cascade amplification were discussed in depth.
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Affiliation(s)
- Hao Jiang
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuan Li
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Xuefei Lv
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China.
| | - Yulin Deng
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Xiaoqiong Li
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
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Chang Y, Wang Y, Zhang J, Xing Y, Li G, Deng D, Liu L. Overview on the Design of Magnetically Assisted Electrochemical Biosensors. BIOSENSORS 2022; 12:bios12110954. [PMID: 36354462 PMCID: PMC9687741 DOI: 10.3390/bios12110954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/27/2022] [Accepted: 10/29/2022] [Indexed: 06/12/2023]
Abstract
Electrochemical biosensors generally require the immobilization of recognition elements or capture probes on the electrode surface. This may limit their practical applications due to the complex operation procedure and low repeatability and stability. Magnetically assisted biosensors show remarkable advantages in separation and pre-concentration of targets from complex biological samples. More importantly, magnetically assisted sensing systems show high throughput since the magnetic materials can be produced and preserved on a large scale. In this work, we summarized the design of electrochemical biosensors involving magnetic materials as the platforms for recognition reaction and target conversion. The recognition reactions usually include antigen-antibody, DNA hybridization, and aptamer-target interactions. By conjugating an electroactive probe to biomolecules attached to magnetic materials, the complexes can be accumulated near to an electrode surface with the aid of external magnet field, producing an easily measurable redox current. The redox current can be further enhanced by enzymes, nanomaterials, DNA assemblies, and thermal-cycle or isothermal amplification. In magnetically assisted assays, the magnetic substrates are removed by a magnet after the target conversion, and the signal can be monitored through stimuli-response release of signal reporters, enzymatic production of electroactive species, or target-induced generation of messenger DNA.
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Affiliation(s)
| | | | | | | | | | | | - Lin Liu
- Correspondence: (D.D.); (L.L.)
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11
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Liu Y, Zhu P, Huang J, He H, Ma C, Wang K. Integrating DNA nanostructures with DNAzymes for biosensing, bioimaging and cancer therapy. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Zhuang H, Jiang X, Wu S, Wang S, Pang Y, Huang Y, Yan H. A novel polypeptide-modified fluorescent gold nanoclusters for copper ion detection. Sci Rep 2022; 12:6624. [PMID: 35459921 PMCID: PMC9033799 DOI: 10.1038/s41598-022-10500-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 04/04/2022] [Indexed: 12/15/2022] Open
Abstract
Biomolecule-functionalized fluorescent gold nanocluster (AuNCs) have attracted a lot of attention due to good biocompatibility, stable physicochemical properties and considerable cost advantages. Inappropriate concentration of Cu2+ may cause a variety of diseases. In this study, AuNCs were synthesized in alkaline aqueous solution using bovine serum albumin (BSA) as a template. And then, the peptide CCYWDAHRDY was coupled to AuNCs. Furthermore, the fluorescence of synthesized CCYWDAHRDY-AuNCs response to Cu2+ was evaluated. As the results shown that the CCYWDAHRDY-AuNCs can sensitively detect Cu2+. After adding Cu2+ to the probe system, the fluorescence of the CCYWDAHRDY-AuNCs was quenched. The detection conditions were at pH 6 and 30 °C for 10 min, the linear relationship between Cu2+ concentration and fluorescence intensity were good in the range of 0.1 ~ 4.2 μmol/L. The regression equation was y = − 105.9x + 693.68, the linear correlation coefficient is 0.997, and the minimum detection limit was 52 nmol/L.
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Affiliation(s)
- Hong Zhuang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Xinyu Jiang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Sijia Wu
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Shujin Wang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Yong Pang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Yanjun Huang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Haiyang Yan
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China.
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13
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Xia X, Yang H, Cao J, Zhang J, He Q, Deng R. Isothermal nucleic acid amplification for food safety analysis. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116641] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Zhang N, Dai D, Hu P, Guo S, Yang H. Dual-Modal Photoelectrochemical and Visualized Detection of Copper Ions. ACS OMEGA 2022; 7:5415-5420. [PMID: 35187356 PMCID: PMC8851628 DOI: 10.1021/acsomega.1c06673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/21/2022] [Indexed: 05/12/2023]
Abstract
Copper is one of the extensively utilized heavy metals in modern industry and can be easily released into the environment due to high solubility of copper ions (Cu2+). Its percolation in water and accumulation along the food chain pose a serious threat to human health. Hence, it is of great significance to explore a novel, facile, and sensitive detection method for Cu2+. Based on the intriguing photo-to-electricity conversion process of CdS QDs, as well as desirable electrochromic property of WO3 NFs, a dual-modal photoelectrochemical (PEC) and visualized detection platform for Cu2+ is fabricated. The electrochromic WO3 NFs act as a display for the Cu2+ concentration, of which the color change could be observed directly by the naked eye, while the PEC signal provides accurate data for further analysis. In this work, a sensitive detection of Cu2+ in the range of 1 × 10-5 to 5 × 10-4 M is achieved, with a detection limit of 3.2 × 10-6 M. The dual-modal analysis gives more choices for signal readouts with enhanced quantification reliability, which is adaptive for diverse application scenarios, especially for on-site investigation. This protocol offers a prototype for quick and reliable detection of the Cu2+ concentrations, and is promising for other environmental pollutants.
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Affiliation(s)
- Nan Zhang
- Jiangsu
Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
- State
& Local Joint Engineering Research Center of Green Pesticide Invention
and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Danqin Dai
- Jiangsu
Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Peiwen Hu
- Jiangsu
Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Shuangming Guo
- Jiangsu
Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Hong Yang
- Jiangsu
Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
- State
& Local Joint Engineering Research Center of Green Pesticide Invention
and Application, Nanjing Agricultural University, Nanjing 210095, China
- . Phone: +86-25-84395204
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15
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In situ peptide self-assembly on ionic nanochannel for dynamic monitoring of MMPs in extracellular matrix. Biosens Bioelectron 2022; 195:113671. [PMID: 34624798 DOI: 10.1016/j.bios.2021.113671] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/17/2021] [Accepted: 09/26/2021] [Indexed: 12/21/2022]
Abstract
The extracellular matrix (ECM) of tumor mediates malignant transformation and distant metastasis with extracellular proteinases, especially the matrix metalloproteinases (MMPs). However, there is no assay method to trace the dynamic content of MMPs in ECM. In this work, we have proposed a strategy by assembling peptide scaffold on ionic nanochannels to monitor the target proteinases. The short peptide unit is designed to induce self-assembly with good stability, biocompatibility and programmability, while ion nanochannels can provide electrochemical response upon the MMP activities. Taking MMP-2 as an example, the peptide unit includes two regions, one for self-assembly and one for bio-recognition, so the assembly region (KLVFF) can self-assemble to nanofiber networks. In the meantime, since the reactive region (PLGVR) has MMP-2 recognition site, the peptide assembly on nanochannel can thus be used for the detection of active MMP-2 in tumor microenvironment, with a wide linear detection range (10 fg/mL-10 ng/mL) and 6.6 fg/mL limit of detection. Moreover, the availability of the established ECM mimic is able to distinguish active MMP-2 from latent proMMP-2 in tumor samples. By designing different peptide units for self-assembly on the ionic nanochannel, the assay platform can be promisingly used for other proteinases in ECM, so this work may provide a useful approach to trace the dynamic content of the MMPs in tumor microenvironment (TEM).
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16
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Highly Sensitive and Selective Copper (II)-Catalyzed Dual-DNAzyme Colorimetric Biosensor Based on Exonuclease III-Mediated Cyclical Assembly. Catalysts 2021. [DOI: 10.3390/catal11111352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
“Cu-DNAzyme” and “G4-DNAzyme” were used to develop a “turn-off” dual-DNAzyme colorimetric biosensor, which could be used to detect Cu2+ by employing exonuclease III-mediated cyclical assembly (EMCA). EMCA was based on the cleavage activity of Cu2+ to transfer the linkage sequences of the substrate strand and enzyme strand into the transition sequence. The horseradish peroxidase (HRP)-mimicking activity of the G4-DNAzyme was lost after binding with the complementary transition sequence and was hydrolyzed by Exo III. These results demonstrate that the proposed colorimetric biosensor was an effective method for ultradetection of trace metals in a high original signal background. Due to the high sensitivity of the biosensor, the limit of detection (LOD) of Cu2+ is 0.16 nM. This design offers a general purpose platform that could be applied for the detection of any metal ion target through adjustment of metal-dependent DNA-cleaving DNAzymes, which is of great significance for the rapid determination of food safety.
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17
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Portable, quantitative, and sequential monitoring of copper ions and pyrophosphate based on a DNAzyme-Fe 3O 4 nanosystem and glucometer readout. Anal Bioanal Chem 2021; 413:6941-6949. [PMID: 34599395 PMCID: PMC8486162 DOI: 10.1007/s00216-021-03662-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/01/2021] [Accepted: 09/13/2021] [Indexed: 11/12/2022]
Abstract
In this report, portable, quantitative, and sequential monitoring of copper ions and pyrophosphate (PPi) with a single sensor based on a DNAzyme-Fe3O4 system and glucometer readout was performed. Initially, streptavidin was functionalized on the surface of magnetic Fe3O4 spheres through glutaraldehyde. Then, an invertase-modified DNA Cu substrate was connected to the magnetic Fe3O4 spheres by a specific reaction between streptavidin and biotin. The sensing system was formed by a hybridization reaction between the Cu substrate and Cu enzyme. In the presence of Cu2+, Cu2+ will recognize the Cu DNA substrate and form an “off-on” signal switch, thereby resulting in the separation of invertase from the Fe3O4 nanospheres. PPi recognizes Cu2+ to form a Cu2+-PPi complex, resulting in an “on-off” signal switch. Under optimized conditions, linear detection ranges for Cu2+ and PPi of 0.01–5 and 0.5–10 μM, and detection limits for Cu2+ and PPi of 10 nM and 500 nM, respectively, were obtained. Good selectivity was achieved for the analysis of Cu2+ and PPi. Satisfactory results were achieved for this biosensor during the determination of Cu2+ in real tap samples and PPi in human urine samples. This verified that the sensor is portable and low cost, and can be applied to the sequential monitoring of multiple analytes with a single point-of-care biosensor.
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18
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Zhang J, Zhang L, Li Z, Zhang Q, Li Y, Ying Y, Fu Y. Nanoconfinement Effect for Signal Amplification in Electrochemical Analysis and Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101665. [PMID: 34278716 DOI: 10.1002/smll.202101665] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/07/2021] [Indexed: 06/13/2023]
Abstract
Owing to the urgent need for electrochemical analysis and sensing of trace target molecules in various fields such as medical diagnosis, agriculture and food safety, and environmental monitoring, signal amplification is key to promoting analysis and sensing performance. The nanoconfinement effect, derived from nanoconfined spaces and interfaces with sizes approaching those of target molecules, has witnessed rapid development for ultra-sensitive analyzing and sensing. In this review, the two main types of nanoconfinement systems - confined nanochannels and planes - are assessed and recent progress is highlighted. The merits of each nanoconfinement system, the nanoconfinement effect mechanisms, and applications for electrochemical analysis and sensing are summarized and discussed. This review aims to help deepen the understanding of nanoconfinement devices and their effects in order to develop new analysis and sensing applications for researchers in various fields.
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Affiliation(s)
- Jie Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P.R. China
| | - Lin Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P.R. China
| | - Zhishang Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P.R. China
| | - Qi Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P.R. China
| | - Yanbin Li
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Yibin Ying
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P.R. China
| | - Yingchun Fu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P.R. China
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19
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Europium coordination polymer particles based electrospun nanofibrous film for point-of-care testing of copper (II) ions. Talanta 2021; 228:122270. [PMID: 33773718 DOI: 10.1016/j.talanta.2021.122270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/20/2021] [Accepted: 02/27/2021] [Indexed: 02/07/2023]
Abstract
Excess free copper in serum has been identified to induce neurodegenerative diseases such as Alzheimer's disease, thus it is very important to determine copper (II) ions (Cu2+) content for human health test. Herein we developed a point-of-care testing (POCT) platform through a luminescence "on-off" recognition mechanism of serum copper. Microsized europium coordination polymer particles (Eu-CPs), which was prepared with citric acid (CA) and europium nitrate hexahydrate through a hydrothermal route, were then successfully loaded with the mixture of 2,6-pyridinedicarboxylic acid (DPA) and poly(vinyl alcohol) (PVA) to form electrospun nanofibrous films (ENFFs). The as-prepared Eu-CPs/DPA/PVA ENFFs exhibited red emission at 618 nm when exciting at 280 nm, with the quantum yields of 22.2% owing to the antenna effect from DPA to Eu3+. Furthermore, the strong luminescence could be selectively quenched by Cu2+ through coordination with DPA to interrupt the antenna effect. With that, Cu2+ was successfully detected in the range of 2-45 μM with a detection of limit of 1.3 μM, well matching with the requirement of clinic test of excess free copper induced neurodegenerative diseases. As a proof of concept at last, this POCT platform was used to detect free copper in spiked serum samples with a recovery of 101.1%-105.2%, demonstrating that this platform provides significant potential for use in clinical test.
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20
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Lu W, Shi J, Chen J, Sun L, Shao L, Ren H, Huang M, Wang Y, Yang S, Li X. A coumarin-based reversible fluorescent probe for Cu 2+ and S 2− and its applicability in vivo and for organism imaging. NEW J CHEM 2021. [DOI: 10.1039/d1nj01951a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly selective fluorescent probe was designed to detect Cu2+ and S2− in HeLa cells, zebrafish, and soybean root tissue.
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Affiliation(s)
- Wen Lu
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Jiuzhou Shi
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Jichao Chen
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- China
| | - Lu Sun
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Lingcen Shao
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Hongyu Ren
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Mengmeng Huang
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Yanqin Wang
- College of Science
- Nanjing Forestry University
- Nanjing
- China
| | - Shilong Yang
- Advanced Analysis and Testing Center
- Nanjing Forestry University
- Nanjing
- China
| | - Xu Li
- College of Science
- Nanjing Forestry University
- Nanjing
- China
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21
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Hao C, Guo X, Lai Q, Li Y, Fan B, Zeng G, He Z, Wu J. Peptide-based fluorescent chemical sensors for the specific detection of Cu2+ and S2−. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Yu J, Zhang X, Zhao M, Ding Y, Li Z, Ma Y, Li H, Cui H. Fabrication of the Ni-based composite wires for electrochemical detection of copper(Ⅱ) ions. Anal Chim Acta 2020; 1143:45-52. [PMID: 33384129 DOI: 10.1016/j.aca.2020.11.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 01/30/2023]
Abstract
Copper ions (Cu2+) pollution in the water environment poses a great threat to the health function of life-sustaining metabolic activities. However, the current detection methods need relatively expensive instruments, complex operation procedures and long time, so a facile and direct detection method is desired to be developed. In this work, the Ni-based composite wires with p-n junction (the Ni/NiO/ZnO/Chitosan wire) and Schottky junction (the Ni/NiO/Au/Chitosan wire) were fabricated, and the barrier driven electrochemical sensing mechanism was studied. The direct and facile detection of Cu2+ was achieved with a wide linear range (0-6000 nM) and a low LOD (0.81 nM). The excellent stability and recovery in real water samples made the Ni-based composite wires a promising candidate for the practical application. The interfacial barriers of semiconductor can be used as a special sensing factor to develop novel sensors.
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Affiliation(s)
- Jiatuo Yu
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Xiaomin Zhang
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Minggang Zhao
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China.
| | - Yu Ding
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Zhengming Li
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Ye Ma
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Hui Li
- Optoelectronic Materials and Technologies Engineering Laboratory of Shandong, Physics Department, Qingdao University of Science and Technology, Qingdao, 266100, PR China
| | - Hongzhi Cui
- Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
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23
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Zhang X, Huang X, Xu Y, Wang X, Guo Z, Huang X, Li Z, Shi J, Zou X. Single-step electrochemical sensing of ppt-level lead in leaf vegetables based on peroxidase-mimicking metal-organic framework. Biosens Bioelectron 2020; 168:112544. [DOI: 10.1016/j.bios.2020.112544] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/17/2020] [Accepted: 08/22/2020] [Indexed: 12/19/2022]
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24
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Wang X, Xu J, Qin P, Yan C, Liu G, Chen W. Self-assembly of a polythymine embedded activatable molecular beacon for one-step quantification of terminal deoxynucleotidyl transferase activity. Anal Chim Acta 2020; 1141:127-135. [PMID: 33248645 DOI: 10.1016/j.aca.2020.10.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/22/2020] [Accepted: 10/24/2020] [Indexed: 02/07/2023]
Abstract
We describe an isothermal, single-reaction, and one-step method for signal-on quantification of terminal deoxynucleotidyl transferase (TdT) activity based on the periodic elongation and assembly of polythymine embedded activatable molecular beacon (PTA-MB) into DNA nanostructures. PTA-MB is easily designed according to the rule of the conventional molecular beacon (MB) but engineered with a polyT composed loop. Upon exposure to the specific target TdT, the MB is first elongated with an adenine-rich (A-rich) long chain so that it can then act as the anchoring substrate to capture many original PTA-MBs along its strand. Their unfolding contributes to preliminary fluorescence emission. Significantly, the assembled PTA-MBs can also be elongated and hybridized with residual free PTA-MBs for the second round of signal amplification. Accordingly, multiple rounds of elongation, assembly, and activation of initial PTA-MBs can lead to the formation of DNA nanostructures and induce a dramatically enhanced fluorescence signal for qualitative and quantitative evaluation of TdT activity. The final assay indicated a limit of detection (LOD) of 0.042 U mL-1 TdT and showed excellent selectivity for TdT versus other common enzymes. Moreover, the practical applicability was validated by direct/absolute quantification of TdT in real biological specimens and accurate monitoring of the activity of TdT pretreated by low/high temperature and heavy metal ions. These findings demonstrated that this functional PTA-MB and its unique assembly behavior is most likely to promote the study of oligonucleotide probe-based DNA assembly, providing a reliable, convenient, and universal platform for precise and point-of-care monitoring of various biomolecules.
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Affiliation(s)
- Xinxin Wang
- Engineering Research Center of Bio-process, MOE, School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jianguo Xu
- Engineering Research Center of Bio-process, MOE, School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Panzhu Qin
- Engineering Research Center of Bio-process, MOE, School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Chao Yan
- Engineering Research Center of Bio-process, MOE, School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China; Research Center for Biomedical and Health Science, School of Life and Health, Anhui Science & Technology University, Fengyang, 233100, China
| | - Guodong Liu
- Research Center for Biomedical and Health Science, School of Life and Health, Anhui Science & Technology University, Fengyang, 233100, China
| | - Wei Chen
- Engineering Research Center of Bio-process, MOE, School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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25
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Wu S, Cheng W, Li Z, Luo F, Guo L, Qiu B, Lin Z. Determination of copper ions in herbal medicine based on click chemistry using an electronic balance as a readout. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:4473-4478. [PMID: 32869773 DOI: 10.1039/d0ay01108h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The amount of copper affects the quality of herbal medicine greatly, it is necessary to develop some simple and sensitive methods to detect copper for the remote or resource-limited area. An electronic balance is one of the most familiar equipment that can be found nearly in all laboratories. The presence of Cu(i) can catalyze azide-alkyne cycloaddition reaction (called as click chemistry) with high efficiency. In this study, a simple method had been developed to detect copper ions in herbal medicine using an electronic balance as a readout device based on click chemistry. Cu(ii) is reduced to Cu(i) by sodium ascorbate in situ, which induces the "click" reaction between azido-DNA modified magnetic beads (MB-DNA) and alkynyl-DNA modified platinum nanoparticles (Pt NP-DNA) and results in the fixing of the platinum nanoparticles on the beads (called as MB-Pt NPs). MB-Pt NPs can be separated by a magnetic frame easily and transferred into a drainage reaction device containing hydrogen peroxide. Then, hydrogen peroxide can be decomposed by Pt NPs modified on MB to generate oxygen, which increases the pressure in the drainage reaction device and forces the water in the system to be discharged. The weight of the discharged water can be easily and accurately measured by an electronic balance. The weight of the water has a linear relationship with Cu(ii) in the range of 2.0-200 μM and a detection limit of 0.83 μM under 30 min of collected time. This method does not need complicated and expensive instruments, skilled technicians, and a complex data processing process. The proposed method had been applied to detect copper ions in herbal medicine with satisfactory results.
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Affiliation(s)
- Shuihua Wu
- Fujian Vocational College of Bioengineering, Fuzhou, Fujian 350007, China
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26
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Fluorescent detection of Cu (II) ions based on DNAzymatic cascaded cyclic amplification. Mikrochim Acta 2020; 187:443. [PMID: 32661732 DOI: 10.1007/s00604-020-04430-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022]
Abstract
A fluorescent biosensor based on the cascaded cyclic amplification-lighted copper nanoparticles has been developed, optimized, and validated. In the double-modular cascaded cyclic amplification, a DNAzymatic cyclic amplification unit transforms metal ion signal to specific DNA sequences, and a linear/exponential integrated amplification unit converts as-prepared DNA codes to identical thymine (T)-rich DNA templates. T-rich scaffolds can induce the generation of red fluorescent copper nanoparticles, with fluorescence emission at 625 nm upon the excitation at 340 nm, as signal vehicles for quantitative detection of metal ions. Copper ions, selected as the model target, could be detected in a wide linear range from 10 to 104 nM depending on the increased fluorescent intensity, and the detection limit is 5.6 ± 0.52 nM (n = 3) within 40 min, which is 4 orders of magnitude lower than the limits set in drinking water. In the detection of Cu2+ in real tap and lake water, the results between inductively coupled plasma mass spectrometry (ICP-MS) and our proposed biosensor were consistent, illustrating the practicability of the fabricated method. In summary, the established fluorescent biosensor compensates the deficiency of immunoassays failing to analyze metal ions, broadens ranges of biomarkers responding to cleaved DNAzymes, provides an open platform sensing different metal ions, and meets the increasing need for the ultrasensitive detection in the field of food safety, environmental monitoring, and medical diagnosis.
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27
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Lu Y, Yang Q, Wu J. Recent advances in biosensor-integrated enrichment methods for preconcentrating and detecting the low-abundant analytes in agriculture and food samples. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115914] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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28
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Ramki K, Sakthivel P. A novel electrochemical platform based on indenoindole for selective detection of Cu2+ ions in Punica granatum fruit juice. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Xia X, Li H, Zhou G, Ge L, Li F. In situ growth of nano-gold on anodized aluminum oxide with tandem nanozyme activities towards sensitive electrochemical nanochannel sensing. Analyst 2020; 145:6617-6624. [DOI: 10.1039/d0an01271h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The growth of nano-gold tandem nanozymes on anodized aluminum oxide is successfully developed using poly-dopamine as an in situ reducing layer for electrochemical nanochannel sensing.
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Affiliation(s)
- Xin Xia
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Hui Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Guoxing Zhou
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Lei Ge
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
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30
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Tian J, Chu H, Zhang Y, Li K, Tian H, Zhang X, Xu W. TiO 2 Nanoparticle-Enhanced Linker Recombinant Strand Displacement Amplification (LRSDA) for Universal Label-Free Visual Bioassays. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46504-46514. [PMID: 31755686 DOI: 10.1021/acsami.9b16314] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The influence of nanomaterials on dynamic isothermal amplification and their morphology regulated by bionic biological reactions in vitro remain unknown. From a theoretical perspective, TiO2 nanoparticles enhance the amplification efficiency and reaction specificity of recombinase polymerase amplification (RPA). These nanoparticles aggregated into larger nanoclusters by adsorbing RPA components, termed nanoscale RPA factories, which increased their local concentrations to enhance RPA. Following the nick/extension cycles mediated by a bifunctional linker located at the 5' end of the forward primers, the TiO2 nanoparticle-enhanced LRSDA process produces single-stranded products, constituting the G-quadruplex DNAzymes and catalyzing the chromogenic substrate to facilitate colorimetric analysis for on-site bioassays. Salmonella spp. and genetically modified maize MON810 could be detected with a detection limit of 4 cfu/mL and 0.1% transgenic components, respectively. Briefly, TiO2-assisted isothermal molecular amplification addressed the demands of practical on-site applications.
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Affiliation(s)
- Jingjing Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) , Ministry of Agriculture , Beijing 100083 , People's Republic of China
| | - Huashuo Chu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
| | - Yuan Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
- College of Food Science and Technology , Agricultural University of Hebei , Baoding , Hebei 071001 , People's Republic of China
| | - Kai Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
| | - Hongtao Tian
- College of Food Science and Technology , Agricultural University of Hebei , Baoding , Hebei 071001 , People's Republic of China
| | - Xiujie Zhang
- Department Center of Science and Technology , Ministry of Agriculture and Rural Affairs , Beijing 100176 , People's Republic of China
| | - Wentao Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) , Ministry of Agriculture , Beijing 100083 , People's Republic of China
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31
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Jiang Y, Ma W, Ji W, Wei H, Mao L. Aptamer superstructure-based electrochemical biosensor for sensitive detection of ATP in rat brain with in vivo microdialysis. Analyst 2019; 144:1711-1717. [PMID: 30657477 DOI: 10.1039/c8an02077a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Highly sensitive and selective sensing of ATP in rat brain has attracted increasing interest from interdisciplinary fields of analytical chemistry and neuroscience owing to the importance of ATP in cellular metabolism and signal transduction. Herein, we demonstrated an electrochemical biosensor having an aptamer superstructure as a recognition element for the selective and sensitive detection of ATP in rat brain. Unlike the electrochemical aptamer-based sensors (aptasensors) built by assembling a simple DNA structure containing only one aptamer unit onto the electrode substrate, the aptasensor described here was developed by assembling an aptamer superstructure consisting of consecutive aptamer units in DNA strands onto the electrode substrate. Each aptamer unit in the superstructure was labelled with an electrochemical probe (i.e., methylene blue, MB) for signal readout. The aptamer superstructure was assembled onto the surface of a gold electrode to form the electrochemical aptasensor. In the presence of ATP, the strong electrochemical signals produced by multiple redox molecules labeled on the aptamer units clearly decreased because of the disassembling of the aptamer superstructure from the electrode surface due to strong interactions between ATP and the aptamer units. In this approach, the aptasensor was well responsive to the ATP concentration, and the current decrease was linearly related to the ATP concentration ranging from 0.1 nM to 1 mM. Moreover, the aptasensor has high selectivity and good regenerability. Due to these properties, the aptasensor with an aptamer superstructure can exhibit practical applications for ATP assay in rat brain combined with in vivo microdialysis.
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Affiliation(s)
- Yanan Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China.
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32
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Zhao XP, Liu FF, Hu WC, Younis MR, Wang C, Xia XH. Biomimetic Nanochannel-Ionchannel Hybrid for Ultrasensitive and Label-Free Detection of MicroRNA in Cells. Anal Chem 2019; 91:3582-3589. [PMID: 30758184 DOI: 10.1021/acs.analchem.8b05536] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A biomimetic nanochannel-ionchannel hybrid coupled with electrochemical detector was developed for label-free and ultrasensitive detection of microRNA (miRNA) in cells. Probe single stranded DNA (ssDNA) was first immobilized on the outer surface of the nanochannel-ionchannel hybrid membrane, which can hybridize with the target miRNA in cells. Due to the unique mass transfer property of the hybrid, the DNA-miRNA hybridization kinetics can be sensitively monitored in real-time using the electrochemical technique. More importantly, due to the super small size of the ionchannels, the DNA probe immobilization and hybridization process can be carried out on the outer surface of the ionchannel side, which can effectively avoid the blockage and damage of channels and thus considerably enhance the reproducibility and accuracy of the method. Using this strategy, the miRNA ranging from 0.1 fM to 0.1 μM can be facilely detected with a low detection limit of 15.4 aM, which is much lower than most reported work. The present strategy provides a sensitive and label-free miRNA detection platform, which will be of great significance in biomedical research and clinical diagnosis.
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Affiliation(s)
- Xiao-Ping Zhao
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Fei-Fei Liu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Wen-Chao Hu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Muhammad Rizwan Younis
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Chen Wang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
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Ying R, Lu H, Xu S. Ion imprinted dual reference ratiometric fluorescence probe for respective and simultaneous detection of Fe3+ and Cu2+. NEW J CHEM 2019. [DOI: 10.1039/c9nj01356c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Dual detection of two kinds of metal ions was achieved by a dual reference ratiometric fluorescence probe.
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Affiliation(s)
- Rongjian Ying
- School of Chemistry and Chemical Engineering
- Linyi University
- Linyi 276005
- China
| | - Hongzhi Lu
- School of Chemistry and Chemical Engineering
- Linyi University
- Linyi 276005
- China
| | - Shoufang Xu
- School of Materials Science and Engineering
- Linyi University
- Linyi 276005
- China
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