1
|
Dettlaff A, Rycewicz M, Macewicz Ł, Rutecki P, Sawczak M, Wittendorp P, Jain S, Vereshchagina E, Bogdanowicz R. Optimizing Ni-Cr patterned boron-doped diamond band electrodes: Doping effects on electrochemical efficiency and posaconazole sensing performance. Talanta 2024; 278:126519. [PMID: 39002261 DOI: 10.1016/j.talanta.2024.126519] [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: 01/14/2024] [Revised: 06/05/2024] [Accepted: 07/04/2024] [Indexed: 07/15/2024]
Abstract
There is growing interest in developing diamond electrodes with defined geometries such as, for example, micrometer-sized electrode arrays to acquire signals for electroanalysis. For electroanalytical sensing applications, it is essential to achieve precise conductive patterns on the insulating surface. This work provides a novel approach to boron-doped diamond patterning using nichrome masking for selective seeding on an oxidized silicon substrate. The optimized process involves nichrome deposition, sonication, chemical etching, seeding, and tailored chemical vapor deposition of boron-doped diamond with an intrinsic layer to suppress boron diffusion. Through a systematic investigation, it was determined that isolated boron-doped diamond band electrodes can be efficiently produced on non-conductive silica. Additionally, the influence of boron doping on electrochemical performance was studied, with higher doping enhancing the electrochemical response of band electrodes. To demonstrate sensing capabilities, boron-doped diamond bands were used to detect posaconazole, an antifungal drug, exploiting its electroactive behaviour. A linear correlation between posaconazole concentration and oxidation peak current was observed over 1.43 × 10-8 - 5.71 × 10-6 M with a 1.4 × 10-8 M detection limit. The developed boron-doped diamond microbands could significantly impact the field of electroanalysis, facilitating detection of diverse biologically relevant molecules. Overall, this diamond patterning approach overcomes major challenges towards all-diamond electrochemical sensor chips.
Collapse
Affiliation(s)
- Anna Dettlaff
- Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland.
| | - Michał Rycewicz
- Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland
| | - Łukasz Macewicz
- Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland
| | - Paweł Rutecki
- Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland
| | - Mirosław Sawczak
- Polish Academy of Sciences, The Szewalski Institute of Fluid-Flow Machinery, The Centre for Plasma and Laser Engineering, Fiszera 14, 80-231, Gdańsk, Poland
| | - Paul Wittendorp
- Department of Smart Sensors and Microsystems, SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Shruti Jain
- Department of Smart Sensors and Microsystems, SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Elizaveta Vereshchagina
- Department of Smart Sensors and Microsystems, SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Robert Bogdanowicz
- Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland.
| |
Collapse
|
2
|
Rageh AH, Said MI, Abdel-Aal FAM. Zirconium-based hydrophobic-MOFs as innovative electrode modifiers for flibanserin determination: Exploring the electrooxidation mechanism using a comprehensive spectroelectrochemical study. Mikrochim Acta 2024; 191:236. [PMID: 38570402 DOI: 10.1007/s00604-024-06297-1] [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: 11/20/2023] [Accepted: 03/03/2024] [Indexed: 04/05/2024]
Abstract
Three different types of Zr-based MOFs derived from benzene dicarboxylic acid (BDC) and naphthalene dicarboxylic acid as organic linkers (ZrBDC, 2,6-ZrNDC, and 1,4-ZrNDC) were synthesized. They were characterized using X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), Fourier-transform IR spectroscopy (FT-IR), and Transmission electron microscopy (TEM). Their hydrophilic/hydrophobic nature was investigated via contact angle measurements; ZrBDC MOF was hydrophilic and the other two (ZrNDC) MOFs were hydrophobic. The three MOFs were combined with MWCNTs as electrode modifiers for the determination of a hydrophobic analyte, flibanserin (FLB), as a proof-of-concept analyte. Under the optimized experimental conditions, a significant enhancement in the oxidation peak current of FLB was observed when utilizing 2,6-ZrNDC and 1,4-ZrNDC, being the highest when using 1,4-ZrNDC. Furthermore, a thorough investigation of the complex oxidation pathway of FLB was performed by carrying out simultaneous spectroelectrochemical measurements. Based on the obtained results, it was verified that the piperazine moiety of FLB is the primary site for electrochemical oxidation. The fabricated sensor based on 1,4-ZrNDC/MW/CPE showed an oxidation peak of FLB at 0.8 V vs Ag/AgCl. Moreover, it showed excellent linearity for the determination of FLB in the range 0.05 to 0.80 μmol L-1 with a correlation coefficient (r) = 0.9973 and limit of detection of 3.0 nmol L-1. The applicability of the developed approach was demonstrated by determination of FLB in pharmaceutical tablets and human urine samples with acceptable repeatability (% RSD values were below 1.9% and 2.1%, respectively) and reasonable recovery values (ranged between 97 and 103% for pharmaceutical tablets and between 96 and 102% for human urine samples). The outcomes of the suggested methodology can be utilized for the determination of other hydrophobic compounds of pharmaceutical or biological interest with the aim of achieving low detection limits of these compounds in various matrices.
Collapse
Affiliation(s)
- Azza H Rageh
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
| | - Mohamed I Said
- Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Fatma A M Abdel-Aal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| |
Collapse
|
3
|
Šelešovská R, Sokolová R, Krejčová K, Schwarzová-Pecková K, Mikysek T, Matvieiev O. Electrochemical behavior of fungicide tebuconazole and its voltammetric determination on an oxygen-terminated boron-doped diamond electrode. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117155] [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]
|
4
|
Šelešovská R, Schwarzová-Pecková K, Sokolová R, Krejčová K, Martinková-Kelíšková P. The first study of triazole fungicide difenoconazole oxidation and its voltammetric and flow amperometric detection on boron doped diamond electrode. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
5
|
Kubicz J, Lochyński P, Pawełczyk A, Karczewski M. Effects of drought on environmental health risk posed by groundwater contamination. CHEMOSPHERE 2021; 263:128145. [PMID: 33297132 DOI: 10.1016/j.chemosphere.2020.128145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 06/12/2023]
Abstract
This publication presents a comparison of the content of pollutants in groundwater samples taken at 117 measurement points in four regions of Poland during a drought period and in the reference period without drought. Based on the chemical analyses of water, an assessment of the health risk resulting from the use of underground water for consumption was carried out. The study aimed to determine whether drought affects the increase in health risk exposure of the population. It was found that despite the occurrence of drought, the expected increase in the concentration of pollutants in water does not take place in all locations. This study found that in some cases the occurrence of drought did not cause an increase in the non-cancerogenic threat expressed by the hazard index. There were also no clear changes in excess lifetime cancer risk values except for selected measurement points. On the other hand, the statistical analysis of all data collected in the regions where the research was conducted showed a general trend of increasing environmental health risk caused by changes in groundwater pollution during drought.
Collapse
Affiliation(s)
- Justyna Kubicz
- Wrocław University of Environmental and Life Sciences, Institute of Environmental Engineering, Norwida 25, 50-375, Wrocław, Poland.
| | - Paweł Lochyński
- Wrocław University of Environmental and Life Sciences, Institute of Environmental Engineering, Norwida 25, 50-375, Wrocław, Poland.
| | - Adam Pawełczyk
- Wroclaw University of Science and Technology, Wyspianskiego 27, 50-370, Wroclaw, Poland.
| | - Maciej Karczewski
- Wrocław University of Environmental and Life Sciences, Institute of Environmental Engineering, Norwida 25, 50-375, Wrocław, Poland.
| |
Collapse
|
6
|
Teixeira JG, Oliveira J. Voltammetric Study of the Antihistamine Drug Bilastine: Anodic Characterization and Quantification Using a Reusable MWCNTs Modified Screen Printed Carbon Electrode. ELECTROANAL 2020. [DOI: 10.1002/elan.202060494] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jorge Ginja Teixeira
- Chemistry Department of Science and Technology School Évora University CLAV Rua Romão Ramalho 59 7000-671 Évora Portugal
- HERCULES Laboratory Évora University Palácio do Vimioso Largo Marquês de Marialva 8 7000–809 Évora Portugal
| | - João Oliveira
- Chemistry Department of Science and Technology School Évora University CLAV Rua Romão Ramalho 59 7000-671 Évora Portugal
| |
Collapse
|