1
|
Cai Y, Zhou H, Li W, Yao C, Wang J, Zhao Y. A chemiluminescence method induced by microplasma jet for nitrites detection and the miniature detection system using smartphone. Anal Chim Acta 2023; 1267:341339. [PMID: 37257970 DOI: 10.1016/j.aca.2023.341339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/19/2023] [Accepted: 05/08/2023] [Indexed: 06/02/2023]
Abstract
A method of luminol-diazonium chemiluminescence (CL) induced by microplasma for hazardous substance detection is proposed. The luminol-diazonium CL is caused by microplasma jet, rather than hydrogen peroxide reagent or other oxidizing agents. The CL intensity is increased by the concentration of nitrites. Based on the process of microplasma generation and CL mechanism, the optimal work conditions of the method are obtained. The linear range for nitrites detection is 0.03-1 mmol L-1 with the limit of detection (LOD) of 0.01 mmol L-1. Furthermore, a miniature system using test paper and smartphone is designed for nitrites detection in emergency. The detection system is confined in the custom-tailored shell which is only 28 cm in length, 18 cm in width and 10 cm in height. After microplasma jet treatment, the color of the test paper changes with the NO2- concentration. The photographs of the test paper are taken by the built-in camera of smartphone and analyzed by visiting the website via smartphone. The LOD is 1 mmol L-1 obtained by the CL miniature detection system based on test paper and smartphone. The accuracy, reliability and practicability of the proposed method is verified in this paper.
Collapse
Affiliation(s)
- Yi Cai
- School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China; College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China.
| | - Han Zhou
- School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China; College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Wei Li
- School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
| | - Cheng Yao
- School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
| | - Jianhua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Yong Zhao
- School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China; College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China.
| |
Collapse
|
2
|
Zhang J, Chen H, Liu J, Gui J, Liu M, Zhang Y, Yao S. The target-induced redox and diazotized reaction for colorimetric ratio detection of nitrite using CoOOH nanosheets as mimetic oxidase. Talanta 2023; 258:124458. [PMID: 36934661 DOI: 10.1016/j.talanta.2023.124458] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Nitrite is a commonly used food additive and water contaminant that has received widespread attention due to its harmful effects on humans. Here, a colorimetric ratio sensing platform for the detection of nitrite in foods as well as aquatic systems was developed via the catalytic oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) by CoOOH nanosheets (CoOOH NSs). Interestingly, in the presence of nitrite, TMB complexes in acidic environments can be oxidized and diazotized to produce yellow oxidized TMB (oxTMB) and diazotized TMB, resulting in the nitrite concentration-dependent ratio variation for the absorbance peaks at 655 and 450 nm (A655/A450). The colorimetric ratio sensing offers higher sensitivity and better selectivity compared to conventional detection methods because of the specific target-induced reduction-oxidation and diazotized reaction, as well as the excellent mimetic oxidase activity of CoOOH NSs. Based on this strategy, a smartphone-assisted portable approach was designed for the in-situ/visual detection of nitrite, which has good application prospects.
Collapse
Affiliation(s)
- Jianan Zhang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Haoyu Chen
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Jing Liu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Jialing Gui
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Meiling Liu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China.
| | - Youyu Zhang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| |
Collapse
|
3
|
Li Q, Wang Y, Zhu Q, Liu H, Liu J, Meng HM, Li Z. A dual-mode system based on molybdophosphoric heteropoly acid and fluorescent microspheres for the reliable and ultrasensitive detection of alkaline phosphatase. Analyst 2023; 148:1259-1264. [PMID: 36779364 DOI: 10.1039/d2an02052a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A novel colorimetric and fluorescent dual-mode sensing system based on molybdophosphoric heteropoly acid (PMA) and fluorescent microspheres (FMs) was established for monitoring the activity of alkaline phosphatase (ALP). In the presence of ALP, L-ascorbic acid-2-phosphate (AAP) could be hydrolyzed catalytically to ascorbic acid (AA), which could reduce PMA to phosphorus molybdenum blue (PMB), accompanied by the generation of colorimetric signals depending on the level of ALP. Meanwhile, the fluorescence of FMs was quenched markedly by the PMB produced due to the inner-filter effect, which constituted the response mechanism for the dual-mode sensing systems of ALP. On this basis, a PMA-FMs based dual-mode sensing system was used for the detection of ALP, which not only possessed remarkable sensitivity, with a limit of detection of 0.27 U L-1 and 0.11 U L-1, but also exhibited good analytical performance in biological samples with satisfactory results. Moreover, a simple and portable test kit for the visual detection of ALP in real serum samples was fabricated utilizing a smartphone with image-recognition and data-processing capabilities as a visual-detection platform.
Collapse
Affiliation(s)
- Qiannan Li
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China.
| | - Yufei Wang
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China.
| | - Qianqian Zhu
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China.
| | - Haifang Liu
- Henan Key Laboratory of Precision Diagnosis of Respiratory Infectious Diseases, Zhengzhou Key Laboratory of Precision Diagnosis of Respiratory Infectious Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, China
| | - Jianbo Liu
- Henan Key Laboratory of Precision Diagnosis of Respiratory Infectious Diseases, Zhengzhou Key Laboratory of Precision Diagnosis of Respiratory Infectious Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, China
| | - Hong-Min Meng
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhaohui Li
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China.
| |
Collapse
|
4
|
Jiang L, Li J, Peng N, Gao M, Fu DY, Zhao S, Li G. Reversible stimuli responsive lanthanide-polyoxometalate-based luminescent hydrogel with shape memory and self-healing properties for advanced information security storage. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
5
|
Liu C, Li X, Deng L, Wu T, Zou G, Yang H. Ultrathin g-C 3N 4 nanosheet-CoOOH nanocomposite for fluorescence imaging of ascorbic acid in living cells. ANAL SCI 2022; 38:1433-1440. [PMID: 36001292 DOI: 10.1007/s44211-022-00178-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/07/2022] [Indexed: 11/30/2022]
Abstract
Ascorbic acid (AA), a critical cellular metabolite involved in many biochemical pathways, is an important antioxidant in human body. Therefore, it is of great significance to monitor AA in living cells. Nowadays, there are various technologies developed for the detection of AA, but few methods could sensitively and selectively detect the intracellular AA. Here, we reported a highly efficient biosensor (g-C3N4-CoOOH nanocomposite) based on ultrathin graphitic carbon nitride (g-C3N4) nanosheets and CoOOH nanoflakes, for sensitive detection and fluorescence imaging of AA in living cell. The g-C3N4 used here as fluorescence donor is a promising bioimaging nanomaterial because of their high fluorescence quantum yield, good biocompatibility and low toxicity. In addition, the CoOOH was used to be perfect fluorescence quencher. Herein, we enabled the CoOOH in situ to form a layer on the surface of g-C3N4, resulting in fluorescence quench of the g-C3N4. Upon the addition of AA, the CoOOH nanoflakes were reduced to Co2+, and the system gave a "turn on" fluorescence signal. It developed as an efficient sensing platform for AA, and the linear range was from 5 to 50 μM with a 1.6 μM detection limit. This novel biosensor, g-C3N4-CoOOH nanocomposite exhibited highly selective response toward AA relative to other biomolecules. Furthermore, this biosensor was used successfully to visualize and monitor AA in living cells. Hopefully, we believe that this biosensor would provide a low-cost and highly sensitive platform for AA detection and bioimaging. Schematic illustration of the sensing strategy based on the g-C3N4-CoOOH nanocomposite for AA detection.
Collapse
Affiliation(s)
- Chang Liu
- School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, Hunan, China.
| | - Xuzi Li
- School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, Hunan, China
| | - Lijiao Deng
- School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, Hunan, China
| | - Tao Wu
- School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, Hunan, China
| | - Guoqiang Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China.
| | - Hai Yang
- School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, Hunan, China.
| |
Collapse
|
6
|
Yu X, Zhou Q, Bi L. Ultrasensitive Electrochemical Sensor Based on β-Cyclodextrin–Polyaniline–Phosphomolybdic Acid Matrix for the Detection of Ascorbic Acid. RUSS J APPL CHEM+ 2022. [DOI: 10.1134/s1070427222070163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
7
|
He D, Sun A, Wang Y, Zhang L, Sha J. Surfactant-Assisted Solvothermal Synthesis and Mimic Enzyme Activity Study of Polyoxometalates Based Zn-Organic Framework. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02289-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
8
|
Bagheri AR, Aramesh N, Chen J, Liu W, Shen W, Tang S, Lee HK. Polyoxometalate-based materials in extraction, and electrochemical and optical detection methods: A review. Anal Chim Acta 2022; 1209:339509. [PMID: 35569843 DOI: 10.1016/j.aca.2022.339509] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023]
Abstract
Polyoxometalates (POMs) as metal-oxide anions have exceptional properties like high negative charges, remarkable redox abilities, unique ligand properties and availability of organic grafting. Moreover, the amenability of POMs to modification with different materials makes them suitable as precursors to further obtain new composites. Due to their unique attributes, POMs and their composites have been utilized as adsorbents, electrodes and catalysts in extraction, and electrochemical and optical detection methods, respectively. A survey of the recent progress and developments of POM-based materials in these methods is therefore desirable, and should be of great interest. In this review article, POM-based materials, their properties as well as their identification methods, and analytical applications as adsorbents, electrodes and catalysts, and corresponding mechanisms of action, where relevant, are reviewed. Some current issues of the utilization of these materials and their future prospects in analytical chemistry are discussed.
Collapse
Affiliation(s)
| | - Nahal Aramesh
- Department of Chemistry, Isfahan University, Isfahan, 81746-73441, Iran
| | - Jisen Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Wenning Liu
- Department of Environmental Toxicology, University of California, Davis, CA, 95616, USA
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China.
| | - Hian Kee Lee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| |
Collapse
|
9
|
Veríssimo MIS, Evtuguin DV, Gomes MTSR. Polyoxometalate Functionalized Sensors: A Review. Front Chem 2022; 10:840657. [PMID: 35372262 PMCID: PMC8964365 DOI: 10.3389/fchem.2022.840657] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/20/2022] [Indexed: 12/13/2022] Open
Abstract
Polyoxometalates (POMs) are a class of metal oxide complexes with a large structural diversity. Effective control of the final chemical and physical properties of POMs could be provided by fine-tuning chemical modifications, such as the inclusion of other metals or non-metal ions. In addition, the nature and type of the counterion can also impact POM properties, like solubility. Besides, POMs may combine with carbon materials as graphene oxide, reduced graphene oxide or carbon nanotubes to enhance electronic conductivity, with noble metal nanoparticles to increase catalytic and functional sites, be introduced into metal-organic frameworks to increase surface area and expose more active sites, and embedded into conducting polymers. The possibility to design POMs to match properties adequate for specific sensing applications turns them into highly desirable chemicals for sensor sensitive layers. This review intends to provide an overview of POM structures used in sensors (electrochemical, optical, and piezoelectric), highlighting their main functional features. Furthermore, this review aims to summarize the reported applications of POMs in sensors for detecting and determining analytes in different matrices, many of them with biochemical and clinical relevance, along with analytical figures of merit and main virtues and problems of such devices. Special emphasis is given to the stability of POMs sensitive layers, detection limits, selectivity, the pH working range and throughput.
Collapse
Affiliation(s)
- Marta I. S. Veríssimo
- CESAM, Department of Chemistry, University of Aveiro, Aveiro, Portugal
- *Correspondence: Marta I. S. Veríssimo, ; M. Teresa S. R. Gomes,
| | | | - M. Teresa S. R. Gomes
- CESAM, Department of Chemistry, University of Aveiro, Aveiro, Portugal
- *Correspondence: Marta I. S. Veríssimo, ; M. Teresa S. R. Gomes,
| |
Collapse
|
10
|
Zhou Q, Du Y, Qu Z, Bi L. Facile multilayer assemble of a mixed-valence Mn4-containing silicotungstate and its electrochemical study with Co3O4 as co-catalyst for photoelectrocatalytic water oxidation. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115339] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
11
|
Abstract
Polyoxometalates (POMs) have been used for spectrophotometric determinations of silicon and phosphorus under acidic conditions, referred to as the molybdenum yellow method and molybdenum blue method, respectively. Many POMs are redox active and exhibit fascinating but complicated voltammetric responses. These compounds can reversibly accommodate and release many electrons without exhibiting structural changes, implying that POMs can function as excellent mediators and can be applied to sensitive determination methods based on catalytic electrochemical reactions. In addition, some rare-earth-metal-incorporated POMs exhibit fluorescence, which enables sensitive determination by the enhancement and quenching of fluorescence intensities. In this review, various analytical applications of POMs are introduced, mainly focusing on papers published after 2000, except for the molybdenum yellow method and molybdenum blue method.
Collapse
Affiliation(s)
- Tadaharu Ueda
- Department of Marine Resource Science Faculty of Agriculture and Marine Science, Kochi University, Nankoku, 783-8502, Japan. .,Center for Advanced Marine Core Research, Kochi University, Nankoku, 783-8502, Japan.
| |
Collapse
|
12
|
Tong Z, Xu M, Li Q, Liu C, Wang Y, Sha J. Polyelectrolyte-functionalized reduced graphene oxide wrapped helical POMOF nanocomposites for bioenzyme-free colorimetric biosensing. Talanta 2020; 220:121373. [PMID: 32928399 DOI: 10.1016/j.talanta.2020.121373] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/29/2020] [Accepted: 07/02/2020] [Indexed: 12/17/2022]
Abstract
For the sake of effective colorimetric sensing-pattern, a sensitive colorimetric sensor was conceived based on polyoxometalates based metal-organic frameworks (POMOFs) and polydiallyldimethylammonium chloride functionalized reduced graphene oxide (PDDA-rGO) for the first time, in which PDDA as a "glue" molecule turns rGO nanosheets into general platforms for bonding POMOFs nanoparticles. Herein, a new POMOF compound with fascinating helices-on-helices feature, [Ni4(Trz)6(H2O)2][SiW12O40].4H2O (Trz = 1,2,4-triazole) (abbreviated as Ni4SiW12), was synthesized and characterized, then PDDA-rGO sheet as dispersive and conductive material was successfully introduced to Ni4SiW12 fabricating new PDDA-rGO/Ni4SiW12-n nanocomposites, (abbreviated as PMPG-n). The resulting PMPG-n nanocomposites as peroxidase mimetic show excellent catalytic activities under extreme condition (pH value 2.5), attributed to the nature and synergies from POMs, MOFs and PDDA-rGOs. Note that the peroxidase-like activity of PMPG-1 (the mass ratio of Ni4SiW12 to PDDA-rGO is 1:1) exhibits higher sensitivity (1-60 μM), faster response (10 min) and the lowest limit of detection (2.07 μM) among all reported materials to citric acid (CA) to date. This work opens up new application prospects in colorimetric sensing system for food quality control and safety, biotechnology and clinical diagnosis.
Collapse
Affiliation(s)
- Zhibo Tong
- Department of Chemistry and Chemical Engineering, Jining University, ShanDong, Qufu, 273155, PR China; School of Pharmacy, Jiamusi University, HeilongJiang, Jiamusi, 154007, PR China
| | - Mingqi Xu
- Department of Chemistry and Chemical Engineering, Jining University, ShanDong, Qufu, 273155, PR China
| | - Qian Li
- Department of Chemistry and Chemical Engineering, Jining University, ShanDong, Qufu, 273155, PR China
| | - Chang Liu
- Department of Chemistry and Chemical Engineering, Jining University, ShanDong, Qufu, 273155, PR China
| | - Yunliang Wang
- School of Pharmacy, Jiamusi University, HeilongJiang, Jiamusi, 154007, PR China
| | - Jingquan Sha
- Department of Chemistry and Chemical Engineering, Jining University, ShanDong, Qufu, 273155, PR China.
| |
Collapse
|
13
|
Zhang Y, Wang D, Zeng B, Chen L, Zhao J, Yang GY. An unprecedented polyhydroxycarboxylic acid ligand bridged multi-Eu III incorporated tellurotungstate and its luminescence properties. Dalton Trans 2020; 49:8933-8948. [PMID: 32558836 DOI: 10.1039/d0dt00729c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The first polyhydroxycarboxylic acid ligand bridged multi-EuIII-incorporated tellurotungstate K14H10[Eu4(H2O)4W6(H2glu)4O12(B-α-TeW9O33)4]·60H2O (H6glu = d-gluconic acid) (1) was synthesized via an organic ligand-driven self-assembly strategy. The polyhydroxycarboxylic acid ligand bridged tetrameric polyoxoanion [Eu4(H2O)4W6(H2glu)4O12(B-α-TeW9O33)4]24- in 1 can be viewed as an aggregation of four trivacant Keggin [B-α-TeW9O33]8- fragments and an innovative heterometallic [Eu4(H2O)4W6(H2glu)4O12]8+ cluster, in which four high-coordinate polyhydroxy flexible H2glu4- ligands chelate W and Eu centers through carboxyl and hydroxyl groups, giving rise to a heterometallic cluster. The hexagonal packing of the tetrameric polyoxoanions in 1 along the c axis provides excellent porous channels, which greatly increases the specific surface area of the whole framework and may be of benefit for fluorescence sensing in aqueous solution. 1 can function as a "turn-off" luminescence sensor to detect Cu2+ ions in aqueous solution. The limit of detection (LOD) of the 1-sensor is 8.82 × 10-6 mM, which is the lowest among the reported polyoxometalate-based fluorescence sensors. As for the Cu2+-quenching system, it can function as an "off-on" sensor to detect cysteine in an aqueous system, affording a LOD of 1.75 × 10-4 mM. This work opens up an avenue to broaden the applications of polyoxometalate-based materials in the optical intelligence detection field.
Collapse
Affiliation(s)
- Yan Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | | | | | | | | | | |
Collapse
|
14
|
Li Q, Xu M, Li X, Li S, Hou L, Chen Y, Sha J. A polypyrrole-coated eightfold-helical Wells-Dawson POM-based Cu-FKZ framework for enhanced colorimetric sensing. Analyst 2020; 145:4021-4030. [PMID: 32355933 DOI: 10.1039/d0an00402b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
To explore a novel colorimetric biosensor with high sensibility and selectivity, a new Wells-Dawson-type polyoxometalate (POM)-based metal-organic framework (MOF) with an eightfold helix, [Cu9(FKZ)12(H2O)8][H3P2W18O62]2·4H2O (CuFKZP2W18) (HFKZ = 1-(2,4-difluorophenyl)-1,1-bis[(1H-1,2,4-triazol-1-yl)methyl] ethanol), was successfully synthesized; then, polypyrrole (PPy) was introduced to fabricate CuFKZP2W18/PPy(n) nanocomposites (n = 7%, 15%, 30%) via a facile in situ oxidation polymerization process. All the results indicate that CuFKZP2W18/PPy(15%) as a colorimetric biosensor exhibits lower limits of detection (0.07 μM towards H2O2 and 0.627 μM towards ascorbic acid), smaller Km values (0.106 mM for H2O2 and 0.042 mM for o-phenylenediamine) and higher sensitivity (0.0227 1 μM-1 towards H2O2 and 0.0025 1 μM-1 to ascorbic acid) than most reported enzyme mimetics to the best of our knowledge.
Collapse
Affiliation(s)
- Qian Li
- Department of Chemistry and Chemical Engineering, Jining University, Qufu, Shandong 273155, P. R. China.
| | | | | | | | | | | | | |
Collapse
|
15
|
Wang D, Liu L, Jiang J, Chen L, Zhao J. Polyoxometalate-based composite materials in electrochemistry: state-of-the-art progress and future outlook. NANOSCALE 2020; 12:5705-5718. [PMID: 32104820 DOI: 10.1039/c9nr10573e] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Polyoxometalates (POMs) have been developed as a class of promising smart material candidates not only due to their multitudinous architectures but also their good redox activities and outstanding electron and proton transport capacities. Recently, abundant studies on POMs composited with metal nanoparticles (NPs), carbon materials (e.g., carbon nanotubes (CNTs), carbon quantum dots (CQDs), graphene), and conducting polymers or highly-porous framework materials (e.g., MOFs, ZIFs) have been performed and POM-based composite materials (PCMs) undoubtedly show enhanced stability and improved electrochemical performances. Therefore, POMs and PCMs are of increasing interest in electrocatalysis, electrochemical detection and energy-related fields (such as fuel cells, redox flow batteries and so on), thus, developing novel PCMs has long been the key research topic in POM chemistry. This review mainly summarizes some representative advances in PCMs with electrochemical applications in the past ten years, expecting to provide some useful guidance for future research.
Collapse
Affiliation(s)
- Dan Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Lulu Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Jun Jiang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| |
Collapse
|
16
|
Li L, Li M, Liu H, Li B, Wang B. A portable non-enzyme photoelectrochemical ascorbic acid sensor based on BiVO4 electrode under 20 W LED light. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
17
|
Fu Z, Qu Z, Yu T, Bi L. Study on electrochromic-fluorescence switching performance of film based on silicomolybdotungstate and silica nanoparticles doped with negative charged dye. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Wu Z, Nan D, Yang H, Pan S, Liu H, Hu X. A ratiometric fluorescence-scattered light strategy based on MoS2 quantum dots/CoOOH nanoflakes system for ascorbic acid detection. Anal Chim Acta 2019; 1091:59-68. [DOI: 10.1016/j.aca.2019.09.054] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/18/2019] [Accepted: 09/21/2019] [Indexed: 12/11/2022]
|