1
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Elhassan MM, Glasco DL, Sheelam A, Mahmoud AM, Hegazy MA, Mowaka S, Bell JG. Potentiometric detection of apomorphine in human plasma using a 3D printed sensor. Biosens Bioelectron 2024; 248:115971. [PMID: 38154328 DOI: 10.1016/j.bios.2023.115971] [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: 11/01/2023] [Revised: 12/09/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
Apomorphine is a dopamine agonist that is used for the management of Parkinson's disease and has been proven to effectively decrease the off-time duration, where the symptoms recur, in Parkinson's disease patients. This paper describes the design and fabrication of the first potentiometric sensor for the determination of apomorphine in bulk and human plasma samples. The fabrication protocol involves stereolithographic 3D printing, which is a unique tool for the rapid fabrication of low-cost sensors. The solid-contact apomorphine ion-selective electrode combines a carbon-mesh/thermoplastic composite as the ion-to-electron transducer and a 3D printed ion-selective membrane, doped with the ionophore calix[6]arene. The sensor selectively measures apomorphine in the presence of other biologically present cations - sodium, potassium, magnesium, and calcium - as well as the commonly prescribed Parkinson's pharmaceutical, levodopa (L-Dopa). The sensor demonstrated a linear, Nernstian response, with a slope of 58.8 mV/decade over the range of 5.0 mM-9.8 μM, which covers the biologically (and pharmaceutically) relevant ranges, with a limit of detection of 2.51 μM. Moreover, the apomorphine sensor exhibited good stability (minimal drift of just 188 μV/hour over 10 h) and a shelf-life of almost 4 weeks. Experiments performed in the presence of albumin, the main plasma protein to which apomorphine binds, demonstrate that the sensor responds selectively to free-apomorphine (i.e., not bound or complexed forms). The utility of the sensor was confirmed through the successful determination of apomorphine in spiked human plasma samples.
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Affiliation(s)
- Manar M Elhassan
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA; Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, 11837, Egypt
| | - Dalton L Glasco
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA
| | - Anjaiah Sheelam
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA
| | - Amr M Mahmoud
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt
| | - Maha A Hegazy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt.
| | - Shereen Mowaka
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, 11837, Egypt; Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
| | - Jeffrey G Bell
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA.
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2
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Liu A, Liu Z, Liang R, Qin W. Polymeric membrane potentiometric antibiotic sensors using computer-aided screening of supramolecular macrocyclic carriers. Analyst 2024; 149:1738-1745. [PMID: 38324339 DOI: 10.1039/d3an02154h] [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: 02/08/2024]
Abstract
Carrier-based polymeric membrane potentiometric sensors are an ideal tool for detecting ionic species. However, in the fabrication of these sensors, the screening of carriers still relies on empirical trial- and error-based optimization, which requires tedious and time-consuming experimental verification. In this work, computer-aided screening of carriers is applied in the preparation of polymeric membrane potentiometric sensors. Molecular docking is used to study the host-guest interactions between receptors and targets. Binding energies are employed as the standard to screen the appropriate carrier. As a proof-of-concept experiment, the antibiotic ciprofloxacin is selected as the target model. A series of supramolecular macrocyclic receptors including cyclodextrins, cucurbiturils and calixarenes are chosen as potential receptors. The proposed sensor based on the receptor calix[4]arene screened by molecular docking shows a lower detection limit of 0.5 μmol L-1 for ciprofloxacin. It can be expected that the proposed computer-aided screening technique of carriers can provide a simple but highly efficient method for the fabrication of carrier-based electrochemical and optical sensors.
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Affiliation(s)
- Aohua Liu
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
| | - Zhe Liu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
| | - Rongning Liang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
| | - Wei Qin
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, P.R. China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, P.R. China
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3
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Zhang C, Li Y, Yang N, You M, Hao J, Wang J, Li J, Zhang M. Electrochemical sensors of neonicotinoid insecticides residues in food samples: From structure to analysis. Talanta 2024; 267:125254. [PMID: 37801927 DOI: 10.1016/j.talanta.2023.125254] [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: 07/10/2023] [Revised: 09/13/2023] [Accepted: 09/27/2023] [Indexed: 10/08/2023]
Abstract
Most food samples are detected positive for neonicotinoid insecticides, posing a severe threat to human health. Electrochemical sensors have been proven effective for monitoring the residues to guarantee food safety, but there needs to be more review to conclude the development status comprehensively. On the other hand, various modified materials were emphasized to improve the performance of electrochemical sensors in relevant reviews, rather than the reasons why they were selected. Therefore, this paper reviewed the electrochemical sensors of neonicotinoid insecticides according to bases and strategies. The fundamental basis is the molecular structure of neonicotinoid insecticides, which was disassembled into four functional groups: nitro group, saturated nitrogen ring system, aromatic heterocycle and chlorine substituent. Their relationships were established with strategies including direct sensing, enzyme sensors, aptasensors, immunosensors, and sample pretreatment, respectively. It is hoped to provide a reference for the effective design of electrochemical sensors for small molecule compounds.
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Affiliation(s)
- Changqiu Zhang
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China
| | - Yanqing Li
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China
| | - Ningxia Yang
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China
| | - Minghui You
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China
| | - Jinhua Hao
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China
| | - Jiacheng Wang
- Medical College, Yangzhou University, No. 11 Huaihai Road, Yangzhou, Jiangsu, 225009, China
| | - Juxiu Li
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Min Zhang
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, China.
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4
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Liu J, He SH, Lambert H, Lee TC. Modulation of redox reactivity of resazurin through host-guest complexation with Cucurbit[ n]uril ( n = 7, 8). Front Chem 2023; 11:1295715. [PMID: 38162392 PMCID: PMC10755866 DOI: 10.3389/fchem.2023.1295715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 12/01/2023] [Indexed: 01/03/2024] Open
Abstract
Resazurin (Alamar Blue, RZ) is a widely utilized fluorescent probe for biological sensing, whose fluorescent intensity can be modulated by changing its redox states; thereby, electrochemical reactivity of RZ is of significance when designing a sensing assay. Herein, we report novel two-way electrochemical reactivity modulation of RZ using host-guest complexation with rigid molecular containers cucurbit[n]uril (CBn, n = 7, 8). The complexation between CBn and RZ is confirmed by 1H NMR measurements and supported by computational simulation, and the binding constants are determined via UV-vis titration. Notably, the voltametric data highlights that the redox reactivity of RZ can be activated or deactivated upon encapsulation by CB8 or CB7, respectively. This two-way reactivity modulation is hypothesized to be mediated by the difference in cavity volume that favors or hinders the approach of water molecules to the encapsulated reaction center during the reduction process. Despite the similar cavity size to CB, molecular containers such as cyclodextrins (CDs) exhibit considerably weaker modulation effects. Our approach can potentially be applied to other redox processes that involve proton transfer, and open new possibilities in supramolecular electrochemistry.
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Affiliation(s)
- Jia Liu
- Department of Chemistry, University College London (UCL), London, United Kingdom
- Institute for Materials Discovery, University College London (UCL), London, United Kingdom
- Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, China
| | - Su-Hang He
- Center of Single-Molecule Sciences, College of Electronic Information and Optical Engineering, Nankai University, Tianjin, China
| | - Hugues Lambert
- Department of Chemistry, University College London (UCL), London, United Kingdom
- Institute for Materials Discovery, University College London (UCL), London, United Kingdom
| | - Tung-Chun Lee
- Department of Chemistry, University College London (UCL), London, United Kingdom
- Institute for Materials Discovery, University College London (UCL), London, United Kingdom
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5
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Safwat N, Mahmoud AM, Abdel-Ghany MF, Ayad MF. Eco-friendly monitoring of triclosan as an emerging antimicrobial environmental contaminant utilizing electrochemical sensors modified with CNTs nanocomposite transducer layer. BMC Chem 2023; 17:170. [PMID: 38017490 PMCID: PMC10685535 DOI: 10.1186/s13065-023-01092-0] [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: 04/24/2023] [Accepted: 11/15/2023] [Indexed: 11/30/2023] Open
Abstract
Environmental appearance of antimicrobials due to frequent use of personal care products as recommended by WHO can cause serious flare-up of antimicrobial resistance. In this work, three eco-friendly microfabricated copper solid-state sensors were developed for measuring triclosan in water. Multi-walled carbon nanotubes were incorporated in sensor 2 and 3 as hydrophobic conductive inner layer. Meanwhile, β-cyclodextrin was incorporated in sensor 3 as an ionophore for selective binding of TCS in presence of interfering compounds. The obtained linear responses of sensors 1, 2 and 3 were (1 × 10- 8-1 × 10- 3 M), (1 × 10- 9-1 × 10- 3 M) and (1 × 10- 10- 1 × 10- 3 M), respectively. Limit of detection was 9.87 × 10- 9 M, 9.62 × 10- 10 M, and 9.94 × 10- 11 M, respectively. The miniaturized sensors were utilized for monitoring of triclosan in water samples.
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Affiliation(s)
- Nardine Safwat
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Amr M Mahmoud
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, Cairo, 11562, Egypt.
| | - Maha F Abdel-Ghany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Miriam F Ayad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
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6
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Patyal M, Verma D, Kaur K, Gupta N, Malik AK. Development of a novel green catalyzed nanostructured Cu(II) macrocyclic complex-based disposable electrochemical sensor for sensitive detection of bisphenol A in environmental samples. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122420. [PMID: 37611790 DOI: 10.1016/j.envpol.2023.122420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/24/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
BPA is an endocrine disruptor and the leading environmental pollutant due to its use as raw material in industries. Therefore, the present work reports the sensitive, efficient, and disposable electrochemical paper-based SPE for determining the BPA sensor using an amide-based macrocyclic complex (nanostructured complex of copper acetate with macrocyclic ligand, i.e., CuL (CH3COO)2) synthesized using Citrus limon (lemon) extract via sonication for the first time. The structural, morphological, and electrochemical analyses have been characterized by mass spectroscopy, FTIR, UV-Vis, XRD, FESEM-EDX, elemental mapping and electrochemical techniques. The sensor platform for detecting BPA was fabricated by simple drop-casting on the disposable paper-based SPE using macrocyclic complex, i.e., CuL (CH3COO)2/SPE. After optimizing the conditions, CuL (CH3COO)2/SPE electrode was employed for determining BPA via CV with a wide linear range of 31 × 10-9 μM-0.205 μM, low LOD of 0.027 nM, and high sensitivity of 49.71 μA (log nM)-1 cm-2 having correlation coefficient (R2) of 0.976 which is quite better in compared to other reported SPE sensor for detection of BPA. Further, our sensor also showed good selectivity and reproducibility, in addition to detecting BPA in environmental samples (tube well water, river water and drain water) with acceptable recoveries and RSDs values. In this work, the combination of macrocyclic complex and paper-based SPE has turned out to be a cost-effective electrochemical sensor.
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Affiliation(s)
- Meenakshi Patyal
- Department of Chemistry, Punjabi University, Patiala, Punjab, India
| | - Damini Verma
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, India
| | - Kirandeep Kaur
- Department of Chemistry, Punjabi University, Patiala, Punjab, India
| | - Nidhi Gupta
- Department of Chemistry, Punjabi University, Patiala, Punjab, India.
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7
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Kumar NM, Gruhs P, Casini A, Biedermann F, Moreno-Alcántar G, Picchetti P. Electrochemical Detection of Drugs via a Supramolecular Cucurbit[7]uril-Based Indicator Displacement Assay. ACS Sens 2023. [PMID: 37339775 PMCID: PMC10391622 DOI: 10.1021/acssensors.3c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Electrochemical detection methods are attractive for developing miniaturized, disposable, and portable sensors for molecular diagnostics. In this article, we present a cucurbit[7]uril-based chemosensor with an electrochemical signal readout for the micromolar detection of the muscle relaxant pancuronium bromide in buffer and human urine. This is possible through a competitive binding assay using a chemosensor ensemble consisting of cucurbit[7]uril as the host and an electrochemically active platinum(II) compound as the guest indicator. The electrochemical properties of the indicator are strongly modulated depending on the complexation state, a feature that is exploited to establish a functional chemosensor. Our design avoids cumbersome immobilization approaches on electrode surfaces, which are associated with practical and conceptual drawbacks. Moreover, it can be used with commercially available screen-printed electrodes that require minimal sample volume. The design principle presented here can be applied to other cucurbit[n]uril-based chemosensors, providing an alternative to fluorescence-based assays.
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Affiliation(s)
- Nilima Manoj Kumar
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Patrick Gruhs
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Angela Casini
- School of Natural Sciences, Department of Chemistry, Chair of Medicinal and Bioinorganic Chemistry, Technical University of Munich (TUM), 85748 Garching b. München, Germany
| | - Frank Biedermann
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Guillermo Moreno-Alcántar
- School of Natural Sciences, Department of Chemistry, Chair of Medicinal and Bioinorganic Chemistry, Technical University of Munich (TUM), 85748 Garching b. München, Germany
| | - Pierre Picchetti
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
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8
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Cardoso AG, Viltres H, Ortega GA, Phung V, Grewal R, Mozaffari H, Ahmed SR, Rajabzadeh AR, Srinivasan S. Electrochemical sensing of analytes in saliva: Challenges, progress, and perspectives. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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9
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Zhang XX, Li J, Niu YY. A Review of Crystalline Multibridged Cyclophane Cages: Synthesis, Their Conformational Behavior, and Properties. Molecules 2022; 27:molecules27207083. [PMID: 36296675 PMCID: PMC9607443 DOI: 10.3390/molecules27207083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
This paper reviews the most stable conformation of crystalline three-dimensional cyclophane (CP) achieved by self-assembling based on changing the type of aromatic compound or regulating the type and number of bridging groups. [3n]cyclophanes (CPs) were reported to form supramolecular compounds with bind organic, inorganic anions, or neutral molecules selectively. [3n]cyclophanes ([3n]CPs) have stronger donor capability relative to compound [2n]cyclophanes ([2n]CPs), and it is expected to be a new type of electron donor for the progress of fresh electron conductive materials. The synthesis, conformational behavior, and properties of crystalline multi-bridge rings are summarized and discussed.
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Affiliation(s)
- Xing-Xing Zhang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, No. 100 Science Avenue, Zhengzhou 450001, China
| | - Jian Li
- College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Yun-Yin Niu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, No. 100 Science Avenue, Zhengzhou 450001, China
- Correspondence:
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10
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Eddaif L, Felhősi I, Shaban A. In-situ electrochemical and piezogravimetric studies on the application of macrocyclic resorcinarene tetramer in the development of chemically-modified heavy metals ions detection platform in aqueous media. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103780] [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] Open
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11
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Unveiling the nature of interactions in the supramolecular complex of Cucurbit [7-8] uril with ascorbic acid, dopamine and uric acid for biosensing applications: a computational study. Struct Chem 2022. [DOI: 10.1007/s11224-022-01945-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Huang B, Luo X, Pu Q, Guo J, Tong X, Lu X. Simultaneous Detection of Pb
2+
and Cu
2+
on β‐CD‐NH
2
‐Fe
3
O
4
Modified Electrode. ChemistrySelect 2022. [DOI: 10.1002/slct.202104443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baomei Huang
- College of Chemistry & Chemical Engineering MianYang Normal University MianYang 621000 China
| | - Xi Luo
- College of Chemistry & Chemical Engineering MianYang Normal University MianYang 621000 China
| | - Qingmiao Pu
- College of Chemistry & Chemical Engineering MianYang Normal University MianYang 621000 China
| | - Junchun Guo
- College of Chemistry & Chemical Engineering MianYang Normal University MianYang 621000 China
| | - Xinyu Tong
- College of Chemistry & Chemical Engineering MianYang Normal University MianYang 621000 China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province Northwest Normal University Lanzhou 730070 China
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13
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Blanco E, Rocha L, Pozo MD, Vázquez L, Petit-Domínguez MD, Casero E, Quintana C. A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis. Anal Chim Acta 2021; 1182:338940. [PMID: 34602204 DOI: 10.1016/j.aca.2021.338940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/20/2021] [Accepted: 08/10/2021] [Indexed: 11/15/2022]
Abstract
We develop an electrochemical sensor by using 2D-transition metal dichalcogenides (TMD), specifically MoS2, and nanoparticles stabilized with cucurbit[8]uril (CB[8]) incorporated together with them. Two different nanoparticles are assayed: diamond nanoparticles (DNPs) and gold nanoparticles (AuNp). 0D materials, together with TMD, provide increased conductivity and active surface while the macrocycle CB[8] affords selectivity towards the guest methyl viologen (MV2+), also named paraquat. Glassy Carbon (GC) electrodes are modified by drop-casting of suspensions of MoS2, followed by either a CB[8]-DNPs hybrid dispersion or a CB[8]-AuNp suspension. Atomic force microscopy is employed for the morphological characterization of the electrochemical sensor surface while cyclic voltammetry and electrochemical impedance spectroscopy techniques allow the electrochemical characterization of the sensor. The well-stablished signals of CB[8]-encapsulated MV2+ arise in voltammetric measurements when the macrocycle modifies the 0D-materials. Once the sensor construction and differential pulse voltammetry parameters have been optimized for quantification purposes, calibration procedures are performed with the platform GC/MoS2/CB[8]-DNPs. This sensing platform shows linear relations between peak intensity and the MV2+ concentration in the linear concentration range of (0.73-8.0) · 10-6 M with a limit of detection of 2.2 · 10-7 M. Analyses of river water samples fortified with MV2+ at the μM level shows recoveries of 100% with RSD values of 6.4% (n = 3).
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Affiliation(s)
- Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Laura Rocha
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- ESISNA Group, Instituto de Ciencia de Materiales de Madrid (CSIC), C/ Sor Juana Inés de La Cruz, Nº3. Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain.
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14
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Ghadaksaz AG, Ghaemi A, Kakhki RM. CdO nanoparticles: robust inorganic additive for cadmium selective polymeric electrode based on N-phenylaza-15-crown-5. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01098-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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16
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Luo H, Li H, Ge Q, Cong H, Tao Z, Liu M. An electrochemical sensor for enantiorecognition of tyrosine based on a chiral macrocycle functionalized rGO. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105949] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Elhassan MM, Mahmoud AM, Hegazy MA, Mowaka S. In-line monitoring of sitagliptin dissolution profile from tablets utilizing an eco-friendly potentiometric sensor. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01646-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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18
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Li XX, Xu WT, Deng XY, Tian LF, Huang Y, Tao Z. Selective Identification of Phenylalanine Using Cucurbit[7,8]uril-Based Fluorescent Probes. Aust J Chem 2021. [DOI: 10.1071/ch20029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The interactions of two host–guest inclusion complexes comprised of cucurbit[7]uril (Q[7]) and cucurbit[8]uril (Q[8]) with a derivative of toluidine blue O (TB) have been investigated using 1H NMR and fluorescence spectroscopy. The experimental results revealed that the Q[7] host interacts with a TB molecule to form a 1:1 inclusion complex and the Q[8] host interacts with two TB guest molecules to form a 1:2 inclusion complex. The inclusion of the TB guest molecule within the Q[7] host gave rise to significant fluorescence enhancement, whereas the inclusion of the TB guest molecule within the Q[8] host resulted in significant fluorescence quenching. Further recognition experiments involving a series of l-α-amino acids revealed that the TB@Q[7] inclusion fluorescence probe exhibits high selectivity for the recognition of phenylalanine via significant fluorescence quenching in an aqueous solution, whereas the TB@Q[8] inclusion fluorescence probe also exhibited high selectivity for phenylalanine recognition via fluorescence enhancement in an aqueous solution.
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Rivero-Barbarroja G, Benito JM, Ortiz Mellet C, García Fernández JM. Cyclodextrin-Based Functional Glyconanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2517. [PMID: 33333914 PMCID: PMC7765426 DOI: 10.3390/nano10122517] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 12/29/2022]
Abstract
Cyclodextrins (CDs) have long occupied a prominent position in most pharmaceutical laboratories as "off-the-shelve" tools to manipulate the pharmacokinetics of a broad range of active principles, due to their unique combination of biocompatibility and inclusion abilities. The development of precision chemical methods for their selective functionalization, in combination with "click" multiconjugation procedures, have further leveraged the nanoscaffold nature of these oligosaccharides, creating a direct link between the glyco and the nano worlds. CDs have greatly contributed to understand and exploit the interactions between multivalent glycodisplays and carbohydrate-binding proteins (lectins) and to improve the drug-loading and functional properties of nanomaterials through host-guest strategies. The whole range of capabilities can be enabled through self-assembly, template-assisted assembly or covalent connection of CD/glycan building blocks. This review discusses the advancements made in this field during the last decade and the amazing variety of functional glyconanomaterials empowered by the versatility of the CD component.
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Affiliation(s)
- Gonzalo Rivero-Barbarroja
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain; (G.R.-B.); (C.O.M.)
| | - Juan Manuel Benito
- Instituto de Investigaciones Químicas (IIQ), CSIC, Universidad de Sevilla, 41092 Sevilla, Spain;
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain; (G.R.-B.); (C.O.M.)
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Mutihac RC, Bunaciu AA, Buschmann HJ, Mutihac L. A brief overview on supramolecular analytical chemistry of cucurbit[n]urils and hemicucurbit[n]urils. J INCL PHENOM MACRO 2020. [DOI: 10.1007/s10847-020-01019-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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