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Ono T, Sato F, Kumano M, Komatsu S, Sugiyama K, Watanabe K, Yoshida K, Sasano Y, Fujimura T, Iwabuchi Y, Kashiwagi Y, Sato K. Determination of antibiotics by amperometry using nortropine N-oxyl, a highly active nitroxyl radical. ANAL SCI 2023; 39:1771-1775. [PMID: 37378820 DOI: 10.1007/s44211-023-00388-4] [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: 02/20/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023]
Abstract
Nitroxyl radical compounds oxidize hydroxy groups and some amino groups upon application of an electric potential. The resulting anodic current depends on the concentration of these functional groups in solution. Thus, it is possible to quantify compounds containing these functional groups by electrochemical methods. Cyclic voltammetry has been used to evaluate the catalytic activity of nitroxyl radicals, and the ability of such radicals to sense biological and other compounds. In this study, we evaluated a method for quantifying compounds using constant-potential electrolysis (amperometry) of nitroxyl radicals for application in flow injection analysis and high-performance liquid chromatography as an electrochemical detector. When amperometry was performed using 2,2,6,6-tetramethylpiperidine 1-oxyl, a common nitroxyl radical compound, little change was observed even with 100 mM glucose due to its low reactivity in neutral aqueous solutions. In contrast, 2-azaadamantane N-oxyl and nortropine N-oxyl, which are highly active nitroxyl radicals, showed a concentration-dependent response in neutral aqueous solution. Responses of 33.8 and 125.9 μA, respectively, were observed. By recognition of hydroxy and amino groups, we have succeeded in the electrochemical detection of some drugs by amperometry. Streptomycin, an aminoglycoside antibiotic, was quantifiable in the range of 30-1000 µM.
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Affiliation(s)
- Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima, 963-8611, Japan.
| | - Fumiya Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Masayuki Kumano
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kazuhiro Watanabe
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kentaro Yoshida
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima, 963-8611, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshitomo Kashiwagi
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima, 963-8611, Japan
| | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan.
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Kumano M, Sugiyama K, Sato F, Komatsu S, Watanabe K, Ono T, Yoshida K, Sasano Y, Iwabuchi Y, Fujimura T, Kashiwagi Y, Sato K. Electrochemical reactions of highly active nitroxyl radicals with thiol compounds. ANAL SCI 2023; 39:369-374. [PMID: 36576651 DOI: 10.1007/s44211-022-00246-9] [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: 10/20/2022] [Accepted: 12/13/2022] [Indexed: 12/29/2022]
Abstract
Nitroxyl radicals are known to electrochemically oxidize thiols as well as alcohols and amines. In this study, a preliminary investigation of the electrochemical reaction of thiols with 9-azabicyclo[3.3.1]nonane N-oxyl (ABNO), 2-azaadamantane N-oxyl (AZADO), and nortropine N-oxyl (NNO), which are highly active due to their bicyclo structures, for use in electrochemical analysis was performed and the results were compared with those for a typical nitroxyl radical compound, 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO). Mercaptopropane sulfonic acid (MPS) was used as a model compound to investigate the electrochemical response in aqueous solution. In addition, electrochemical detection of glutathione, a biological thiol molecule, was performed.
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Affiliation(s)
- Masayuki Kumano
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Fumiya Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kazuhiro Watanabe
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-Machi, Koriyama, Fukushima, 963-8611, Japan
| | - Kentaro Yoshida
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-Machi, Koriyama, Fukushima, 963-8611, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Yoshitomo Kashiwagi
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-Machi, Koriyama, Fukushima, 963-8611, Japan.
| | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan.
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3
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Anion exchange membranes with high power density and energy efficiency for aqueous organic redox flow batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shi Y, Mudugamuwa CJ, Abeysinghe TN, Alotaibi YSM, Monteiro MJ, Chalker JM, Lutkenhaus JL, Jia Z. Ionic Effect on Electrochemical Behavior of Water-Soluble Radical Polyelectrolytes. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanlin Shi
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane Queensland 4072, Australia
| | - Chanaka J. Mudugamuwa
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Thidas N. Abeysinghe
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Yasser S. M. Alotaibi
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Michael J. Monteiro
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane Queensland 4072, Australia
| | - Justin M. Chalker
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Jodie L. Lutkenhaus
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Zhongfan Jia
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
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Najmi AA, Bischoff R, Permentier HP. N-Dealkylation of Amines. Molecules 2022; 27:molecules27103293. [PMID: 35630770 PMCID: PMC9146227 DOI: 10.3390/molecules27103293] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/03/2022] [Accepted: 05/08/2022] [Indexed: 02/01/2023] Open
Abstract
N-dealkylation, the removal of an N-alkyl group from an amine, is an important chemical transformation which provides routes for the synthesis of a wide range of pharmaceuticals, agrochemicals, bulk and fine chemicals. N-dealkylation of amines is also an important in vivo metabolic pathway in the metabolism of xenobiotics. Identification and synthesis of drug metabolites such as N-dealkylated metabolites are necessary throughout all phases of drug development studies. In this review, different approaches for the N-dealkylation of amines including chemical, catalytic, electrochemical, photochemical and enzymatic methods will be discussed.
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Sugiyama K, Sasano Y, Komatsu S, Yoshida K, Ono T, Fujimura T, Iwabuchi Y, Kashiwagi Y, Sato K. Nitroxyl Radical/Copper-Catalyzed Electrooxidation of Alcohols and Amines at Low Potentials. Chem Pharm Bull (Tokyo) 2021; 69:1005-1009. [PMID: 34602569 DOI: 10.1248/cpb.c21-00409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nitroxyl radicals, such as 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO), can catalyze the electrochemical oxidation of alcohols and amines. Because the oxidation current obtained in this process depends on the concentration of alcohols and amines, this process can be applied to their sensing. However, the relatively high oxidation potentials required by nitroxyl radicals can induce interfering oxidation currents from various reductive substances in biological samples, which affects the accuracy of analyte measurements. In this study, we examined the electrooxidation of alcohols and amines at a low potential by applying cooperative oxidation catalysis using a nitroxyl radical and a copper salt. Nortropine N-oxyl (NNO), which showed higher catalytic activity than TEMPO was used as the nitroxyl radical. An increase in the oxidation current was observed at the low potential, and this increase depended on the alcohol concentration. In the case of the electrooxidation of amines, a positive correlation between oxidation current and amine concentration was observed at low amine concentrations. Therefore, low-potential cooperative catalysis can be applied to alcohol and amine electrooxidation for the development of accurate sensors suitable for clinical settings.
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Affiliation(s)
- Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | | | - Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | | | | | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University.,Department of Creative Engineering, National Institute of Technology, Tsuruoka College
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Ono T, Sugiyama K, Komatsu S, Kumano M, Yoshida K, Dairaku T, Fujimura T, Sasano Y, Iwabuchi Y, Kashiwagi Y, Sato K. Catalysis of electro-oxidation of antibiotics by nitroxyl radicals and the electrochemical sensing of vancomycin. RSC Adv 2021; 11:21622-21628. [PMID: 35478798 PMCID: PMC9034136 DOI: 10.1039/d1ra03681e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/04/2021] [Indexed: 11/21/2022] Open
Abstract
Quantifying drug concentrations in vivo quickly and easily is possible using electrochemical methods. The present study describes the electrochemical detection of vancomycin (VCM) and other antibiotics from the current obtained using nitroxyl radicals as electrocatalysts. Nortropine N-oxyl (NNO), which is more active than 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO), a typical nitroxyl radical compound, produced greater current values for drugs with intramolecular hydroxy groups and secondary and tertiary amines. However, because the catalytic action of NNO is inactivated by primary amines in the substrate, VCM and teicoplanin with primary amines could not be detected. TEMPO was less active than NNO but not inactivated against primary amines. Therefore, electrochemical sensing of vancomycin was done using 4-acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (A-TEMPO), which has a greater oxidation capacity than TEMPO due to its electron-withdrawing groups. As a result, the current of A-TEMPO increased in the low concentration range of VCM as compared to TEMPO. This method also was able to quantify VCM in the concentration range of 10-100 μM, which is an important concentration range for drug monitoring in blood.
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Affiliation(s)
- Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Masayuki Kumano
- Graduate School of Pharmaceutical Sciences, Tohoku University 6-3 Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Kentaro Yoshida
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Takenori Dairaku
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University 6-3 Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University 6-3 Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Yoshitomo Kashiwagi
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan .,Department of Creative Engineering, National Institute of Technology, Tsuruoka College 104 Sawada, Inooka Tsuruoka Yamagata 997-8511 Japan
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Merey HA, Ramadan NK, Diab SS, Moustafa AA. Green spectrophotometric methods for the determination of a binary mixture of lidocaine hydrochloride and cetylpyridinium chloride in the presence of dimethylaniline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118743. [PMID: 32721659 DOI: 10.1016/j.saa.2020.118743] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Three green, simple, precise, accurate and sensitive spectrophotometric methods were developed for the determination of a binary mixture of lidocaine hydrochloride (LDC) and cetylpyridinium chloride (CPC) in the presence of dimethylaniline (DMA). In the three methods, the interference of DMA spectrum is eliminated using the ratio subtraction method. Method (A) depended on determining LDC and CPC by measuring the first derivative of the ratio spectra (1DD) at 271.0 and 268.4 nm, respectively. Method (B) was the ratio difference (RD), based on dividing the absorption spectrum of the binary mixture by a standard spectrum of CPC or LDC, then measuring the amplitude difference of the ratio spectra (∆P) between 231.2 and 240.0 nm for LDC and between 242.8 and 258.0 nm for CPC. Method (C) based on the application of dual wavelength coupled with the isoabsorptive point method. This was achieved by measuring the absorbance difference (∆A) between 243.0 and 268.6 nm for the determination of LDC, followed by application of isoabsorptive point method comprised of measurement the total content of the mixture of LDC and CPC at their isoabsorptive point at 240.0 nm. The content of CPC was obtained by subtraction. The specificity of the developed methods was investigated by analyzing laboratory prepared mixtures containing different ratios of LDC and CPC in presence of DMA. The proposed methods displayed useful analytical characteristics for the determination of LDC and CPC in bulk powder and their combined dosage form. The obtained results were statistically compared with those obtained by the official methods, showing no significant difference with respect to accuracy and precision.
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Affiliation(s)
- Hanan A Merey
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt
| | - Nesrin K Ramadan
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt
| | - Sherine S Diab
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt.
| | - Azza A Moustafa
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt
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