1
|
Mali SM, Narwade SS, Mulik BB, Digraskar RV, Harale RR, Sathe BR. Enhanced Electrochemical Ethanol Sensitivity on Ni/NiO‐rGO Hybrids Nanostructures at Room Temperature. ChemistrySelect 2023. [DOI: 10.1002/slct.202204328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
|
2
|
Ţuchiu BM, Staden RISV, van Staden J(K, Aboul-Enein HY. N-Methylfulleropyrrolidine-Based Multimode Sensor for Determination of Butoconazole Nitrate. ACS OMEGA 2022; 7:42537-42544. [PMID: 36440171 PMCID: PMC9685749 DOI: 10.1021/acsomega.2c05904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
A multimode sensor (a sensor responding simultaneously to more than one mode, e.g., stochastic mode, amperometric mode, voltammetric mode) based on graphite paste modified with N-methylfulleropyrrolidine was proposed for the determination of butoconazole nitrate in its pharmaceutical formulation. The stochastic mode and square wave voltammetry mode were applied for the determinations. Both the stochastic mode and square wave voltammetry mode were applied for a qualitative and quantitative assay of butoconazole nitrate. The sensor can be used between 1.68 × 10-6 and 1.68 × 104 μmol L-1 when the stochastic mode is used and between 0.168 and 16.80 μmol L-1 when the square wave voltammetry mode is used. The multimode sensor was reliably used for the determination of butoconazole nitrate in its pharmaceutical formulation, Gynofort cream, the recorded recoveries being higher than 99.00%, with RSD (%) values of lower than 2.00%.
Collapse
Affiliation(s)
- Bianca-Maria Ţuchiu
- Laboratory
of Electrochemistry and PATLAB, National
Institute of Research for Electrochemistry and Condensed Matter, 202 Splaiul Independentei Str., 060021Bucharest-6, Romania
- Faculty
of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, 060042Bucharest, Romania
| | - Raluca-Ioana Stefan-van Staden
- Laboratory
of Electrochemistry and PATLAB, National
Institute of Research for Electrochemistry and Condensed Matter, 202 Splaiul Independentei Str., 060021Bucharest-6, Romania
- Faculty
of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, 060042Bucharest, Romania
| | - Jacobus (Koos)
Frederick van Staden
- Laboratory
of Electrochemistry and PATLAB, National
Institute of Research for Electrochemistry and Condensed Matter, 202 Splaiul Independentei Str., 060021Bucharest-6, Romania
| | - Hassan Y. Aboul-Enein
- Pharmaceutical
and Medicinal Chemistry Department, the Pharmaceutical and Drug Industries
Research Division, National Research Centre, Dokki, Cairo12311, Egypt
| |
Collapse
|
3
|
Liu C, Sun ZC, Pei WY, Yang J, Xu HL, Zhang JP, Ma JF. A Porous Metal-Organic Framework as an Electrochemical Sensing Platform for Highly Selective Adsorption and Detection of Bisphenols. Inorg Chem 2021; 60:12049-12058. [PMID: 34313129 DOI: 10.1021/acs.inorgchem.1c01253] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The design of artificial receptors with a specific recognition function and enhanced selectivity is highly desirable in the electrochemical sensing field, which can be used for detection of environmental pollutants. In this facet, metal-organic frameworks (MOFs) featured adjustable porosities and specific host-guest recognition properties. Especially, the large hydrophobic cavity formed in the porous MOFs may become a potential artificial receptor. We herein designed a new porous MOF [Zn2(L)(IPA)(H2O)]·2DMF·2MeOH·3H2O (Zn-L-IPA) by using a functionalized sulfonylcalix[4]arene (L1) and isophthalic acid (H2IPA) (DMF = N,N'-dimethylformamide). The specific pore size and pore shape of Zn-L-IPA made it efficiently selective for absorption of bisphenol A (BPA), bisphenol F (BPF), and bisphenol S (BPS). Therefore, a rapid, highly selective, and ultrasensitive electrochemical sensing platform Zn-L-IPA@GP/GCE was fabricated by using Zn-L-IPA as a host to recognize and absorb bisphenol guests (GP = graphite powder, GCE = glassy carbon electrode). Most strikingly, the extremely low detection limits were up to 3.46 and 0.17 nM for BPA and BPF, respectively, using the Zn-L-IPA@GP/GCE electrode. Furthermore, the "recognition and adsorption" mechanism was uncovered by density functional theory with the B3LYP function. This work offered a prospective strategy for selective absorption and detection of harmful bisphenols with the MOF-based porous material.
Collapse
Affiliation(s)
- Chang Liu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Ze-Chen Sun
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Wen-Yuan Pei
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Jin Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Hong-Liang Xu
- Institute of Functional Material Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Jing-Ping Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Jian-Fang Ma
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| |
Collapse
|