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Wang L, Zhang Y, Wang L, Cheng Y, Yuan D, Zhai J, Xie X. Near-Infrared Fluoride Sensing Nano-Optodes and Distance-Based Hydrogels Containing Aluminum-Phthalocyanine. ACS Sens 2023; 8:4384-4390. [PMID: 37963263 DOI: 10.1021/acssensors.3c01848] [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] [Indexed: 11/16/2023]
Abstract
Fluoride ions are highly relevant in environmental and biological sciences, and there is a very limited number of established fluoride chemical sensors. Previous fluoride-selective optodes were demonstrated with metal-porphyrin as the ionophore and required a chromoionophore for optical signal transduction. We demonstrate here novel optical fluoride sensing with nano-optodes containing an aluminum-phthalocyanine complex (AlClPc) as the single active sensing component, simplifying the conventional ion-selective optodes approach. The fluoride nano-optodes were interrogated in the absorbance and fluorescence modes in the near-infrared region, with absorption around 725 nm and emission peaks at 720 and 800 nm, respectively. The nano-optodes exhibited a lower detection limit around 0.1 μM and good selectivity over a range of common anions including ClO4-, Cl-, Br-, I-, SO42-, NO3-, and AcO-. Furthermore, the nano-optodes were physically entrapped in agarose hydrogels to allow distance-based point-of-care testing (POCT) applications. The 3D networks of the agarose hydrogel were able to filter off large particulates in the samples without stopping fluoride ions to reach the nano-optodes. The fluoride concentrations in real samples including river water, mineral water, and groundwater were successfully determined with the distance-based sensing hydrogel, and the results agreed well with those from commercial fluoride electrodes. Therefore, the results in this work lay the groundwork for the optical detection of fluoride in environmental samples without very sophisticated sample manipulation.
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Affiliation(s)
- Lanfei Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ye Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Liyuan Wang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yu Cheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Dajing Yuan
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Jingying Zhai
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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Abdel-Haleem FM, Gamal E, Rizk MS, Madbouly A, El Nashar RM, Anis B, Elnabawy HM, Khalil ASG, Barhoum A. Molecularly Imprinted Electrochemical Sensor-Based Fe 2O 3@MWCNTs for Ivabradine Drug Determination in Pharmaceutical Formulation, Serum, and Urine Samples. Front Bioeng Biotechnol 2021; 9:648704. [PMID: 33898405 PMCID: PMC8060449 DOI: 10.3389/fbioe.2021.648704] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 03/01/2021] [Indexed: 12/20/2022] Open
Abstract
Ivabradine hydrochloride (IVR) is a medically important drug because of its ability to lower the heart rate. Techniques reported for IVR determination were expensive, laborious, besides being of poor selectivity. In this study, iron oxide @ carbon nanotube (Fe2O3@MWCNTs) nanocomposite and molecularly imprinted polymer (MIP) were synthesized and used in the fabrication of carbon paste electrodes (CPEs) for the potentiometric detection of IVR in biological and pharmaceutical samples. CPEs of the best sensor were formulated from graphite (41 wt%) as a carbon source, MIP (3 wt.%) as an ionophore, Fe2O3@MWCNTs (5 wt%) as a modifier, and nitrophenyl octyl ether (NPOE, 51 wt.%) as a conductive oil so-called plasticizer. The best sensor exhibits a Nernstian slope (response) of 56 mV decade–1 within the IVR concentration range from 1.0 × 10–3 M to 9.8 × 10–8 M with high selectivity against interfering species (ascorbic, maltose, glucose, lactose, dopamine, glycine) over those reported earlier. The use of Fe2O3@MWCNTs together with MIP in the electrode formulation was found to improve the limit of detection (LOD) from 630 to 98 nM along with high reversibility, a short response time of 30 s, and a good lifetime of more than 2 weeks. The sandwich membrane (SMM) method was used to quantify the H-bonding complexing strength of the MIP binding sites for IVR with Log βILn = 11.33. The constructed sensors were successfully applied for the IVR determination in blood serum, urine, and commercial formulations (Savapran®) with high sensitivity.
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Affiliation(s)
- Fatehy M Abdel-Haleem
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt.,Cairo University Centre for Environmental Hazards Mitigation, Environmental Studies and Research, CHMESR, Cairo University, Giza, Egypt
| | - Eman Gamal
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Mahmoud S Rizk
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Adel Madbouly
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Rasha M El Nashar
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Badawi Anis
- Spectroscopy Department, National Research Centre, Giza, Egypt
| | - Hussam M Elnabawy
- Environmental and Smart Technology Group (ESTG), Faculty of Science, Fayoum University, Faiyum, Egypt
| | - Ahmed S G Khalil
- Environmental and Smart Technology Group (ESTG), Faculty of Science, Fayoum University, Faiyum, Egypt.,Materials Science and Engineering Department, School of Innovative Design Engineering, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Egypt
| | - Ahmed Barhoum
- NanoStruc. Research Group, Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.,National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin, Ireland
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Mourzina YG, Offenhäusser A. Electrochemical properties and biomimetic activity of water-soluble meso-substituted Mn(III) porphyrin complexes in the electrocatalytic reduction of hydrogen peroxide. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114159] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Koposova EA, Offenhäusser A, Ermolenko YE, Mourzina YG. Photoresponsive Porphyrin Nanotubes of Meso-tetra(4-Sulfonatophenyl)Porphyrin and Sn(IV) meso-tetra(4-pyridyl)porphyrin. Front Chem 2019; 7:351. [PMID: 31157213 PMCID: PMC6532121 DOI: 10.3389/fchem.2019.00351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 04/29/2019] [Indexed: 11/13/2022] Open
Abstract
Porphyrin macrocycles and their supramolecular nanoassemblies are being widely explored in energy harvesting, sensor development, catalysis, and medicine because of a good tunability of their light-induced charge separation and electron/energy transfer properties. In the present work, we prepared and studied photoresponsive porphyrin nanotubes formed by the self-assembly of meso-tetrakis(4-sulfonatophenyl)porphyrin and Sn(IV) meso-tetra(4-pyridyl)porphyrin. Scanning electron microscopy and transmission electron microscopy showed that these tubular nanostructures were hollow with open ends and their length was 0.4–0.8 μm, the inner diameter was 7–15 nm, and the outer diameter was 30–70 nm. Porphyrin tectons, H4TPPS42- : Sn(IV)TPyP4+, self-assemble into the nanotubes in a ratio of 2:1, respectively, as determined by the elemental analysis. The photoconductivity of the porphyrin nanotubes was determined to be as high as 3.1 × 10−4 S m−1, and the dependence of the photoconductance on distance and temperature was investigated. Excitation of the Q-band region with a Q-band of SnTPyP4+ (550–552 nm) and the band at 714 nm, which is associated with J-aggregation, was responsible for about 34 % of the photoconductive activity of the H4TPPS42--Sn(IV)TPyP4+ porphyrin nanotubes. The sensor properties of the H4TPPS42-- Sn(IV)TPyP4+ nanotubes in the presence of iodine vapor and salicylate anions down to millimolar range were examined in a chemiresistor sensing mode. We have shown that the porphyrin nanotubes advantageously combine the characteristics of a sensor and a transducer, thus demonstrating their great potential as efficient functional layers for sensing devices and biomimetic nanoarchitectures.
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Affiliation(s)
- Ekaterina A Koposova
- Forschungszentrum Jülich, Institute of Complex Systems-8 (Bioelectronics), Jülich, Germany.,Institute of Chemistry, Saint-Petersburg State University, Saint-Petersburg, Russia
| | - Andreas Offenhäusser
- Forschungszentrum Jülich, Institute of Complex Systems-8 (Bioelectronics), Jülich, Germany
| | - Yuri E Ermolenko
- Institute of Chemistry, Saint-Petersburg State University, Saint-Petersburg, Russia
| | - Yulia G Mourzina
- Forschungszentrum Jülich, Institute of Complex Systems-8 (Bioelectronics), Jülich, Germany
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