1
|
Yarman A. Effect of Various Carbon Electrodes on MIP-Based Sensing Proteins Using Poly(Scopoletin): A Case Study of Ferritin. Biomimetics (Basel) 2024; 9:426. [PMID: 39056867 PMCID: PMC11274590 DOI: 10.3390/biomimetics9070426] [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: 05/18/2024] [Revised: 07/01/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Sensitivity in the sub-nanomolar concentration region is required to determine important protein biomarkers, e.g., ferritin. As a prerequisite for high sensitivity, in this paper, the affinity of the functional monomer to the macromolecular target ferritin in solution was compared with the value for the respective molecularly imprinted polymer (MIP)-based electrodes, and the influence of various surface modifications of the electrode was investigated. The analytical performance of ferritin sensing was investigated using three different carbon electrodes (screen-printed carbon electrodes, single-walled-carbon-nanotube-modified screen-printed carbon electrodes, and glassy carbon electrodes) covered with a scopoletin-based MIP layer. Regardless of the electrode type, the template molecule ferritin was mixed with the functional monomer scopoletin, and electropolymerization was conducted using multistep amperometry. All stages of MIP preparation were followed by evaluating the diffusional permeability of the redox marker ferricyanide/ferrocyanide through the polymer layer by differential pulse voltammetry. The best results were obtained with glassy carbon electrodes. The MIP sensor responded up to 0.5 µM linearly with a Kd of 0.30 µM. Similar results were also obtained in solution upon the interaction of scopoletin and ferritin using fluorescence spectroscopy, resulting in the quenching of the scopoletin signal, with a calculated Kd of 0.81 µM. Moreover, the binding of 1 µM ferritin led to 49.6% suppression, whereas human serum albumin caused 8.6% suppression.
Collapse
Affiliation(s)
- Aysu Yarman
- Molecular Biotechnology, Faculty of Science, Turkish-German University, Istanbul 34820, Türkiye
| |
Collapse
|
2
|
Pereira JFS, Di-Oliveira M, Faria LV, Borges PHS, Nossol E, Gelamo RV, Richter EM, Lopes OF, Muñoz RAA. CO 2-plasma surface treatment of graphite sheet electrodes for detection of chloramphenicol, ciprofloxacin and sulphanilamide. Mikrochim Acta 2023; 190:379. [PMID: 37682352 DOI: 10.1007/s00604-023-05953-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/14/2023] [Indexed: 09/09/2023]
Abstract
Graphite sheet (GS) electrodes are flexible and versatile substrates for sensing electrochemical; however, their use has been limited to incorporate (bio)chemical modifiers. Herein, we demonstrated that a cold (low temperature) CO2 plasma treatment of GS electrodes provides a substantial improvement of the electrochemical activity of these electrodes due to the increased structural defects on the GS surface as revealed by Raman spectroscopy (ID/IG ratio), and scanning electron microscopy images. XPS analyses confirmed the formation of oxygenated functional groups at the GS surface after the plasma treatment that are intrinsically related to the substantial increase in the electron transfer coefficient (K0 values increased from 1.46 × 10-6 to 2.09 × 10-3 cm s-1) and with reduction of the resistance to charge transfer (from 129.8 to 0.251 kΩ). The improved electrochemical activity of CO2-GS electrodes was checked for the detection of emerging contaminant species, such as chloramphenicol (CHL), ciprofloxacin (CIP) and sulphanilamide (SUL) antibiotics, at around + 0.15, + 1.10 and + 0.85 V (versus Ag/AgCl), respectively, by square wave voltammetry. Limit of detection values in the submicromolar range were achieved for CHL (0.08 μmol L-1), CIP (0.01 μmol L-1) and SFL (0.11 μmol L-1), which enabled the sensor to be successfully applied to natural waters and urine samples (recovery values from 85 to 119%). The CO2-GS electrode is highly stable and inexpensive ($0.09 each sensor) and can be easily inserted in portable 3D printed cells for environmental on-site analyses.
Collapse
Affiliation(s)
- Jian F S Pereira
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil
| | - Marina Di-Oliveira
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil
| | - Lucas V Faria
- Institute of Chemistry, Universidade Federal Fluminense (UFF), Niterói, RJ, 24020-141, Brazil
| | - Pedro H S Borges
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil
| | - Edson Nossol
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil
| | - Rogério V Gelamo
- Institute of Technological and Exact Sciences, Federal University of Triângulo Mineiro (UFTM), Universidade Federal do Triângulo Mineiro, Uberaba, MG, 38064-200, Brazil
| | - Eduardo M Richter
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil
| | - Osmando F Lopes
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil
| | - Rodrigo A A Muñoz
- Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-902, Brazil.
| |
Collapse
|
3
|
Noor H, David IG, Jinga ML, Popa DE, Buleandra M, Iorgulescu EE, Ciobanu AM. State of the Art on Developments of (Bio)Sensors and Analytical Methods for Rifamycin Antibiotics Determination. SENSORS (BASEL, SWITZERLAND) 2023; 23:976. [PMID: 36679772 PMCID: PMC9863535 DOI: 10.3390/s23020976] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/06/2023] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
This review summarizes the literature data reported from 2000 up to the present on the development of various electrochemical (voltammetric, amperometric, potentiometric and photoelectrochemical), optical (UV-Vis and IR) and luminescence (chemiluminescence and fluorescence) methods and the corresponding sensors for rifamycin antibiotics analysis. The discussion is focused mainly on the foremost compound of this class of macrocyclic drugs, namely rifampicin (RIF), which is a first-line antituberculosis agent derived from rifampicin SV (RSV). RIF and RSV also have excellent therapeutic action in the treatment of other bacterial infectious diseases. Due to the side-effects (e.g., prevalence of drug-resistant bacteria, hepatotoxicity) of long-term RIF intake, drug monitoring in patients is of real importance in establishing the optimum RIF dose, and therefore, reliable, rapid and simple methods of analysis are required. Based on the studies published on this topic in the last two decades, the sensing principles, some examples of sensors preparation procedures, as well as the performance characteristics (linear range, limits of detection and quantification) of analytical methods for RIF determination, are compared and correlated, critically emphasizing their benefits and limitations. Examples of spectrometric and electrochemical investigations of RIF interaction with biologically important molecules are also presented.
Collapse
Affiliation(s)
- Hassan Noor
- Department of Surgery, Faculty of Medicine, “Lucian Blaga” University Sibiu, Lucian Blaga Street 25, 550169 Sibiu, Romania
| | - Iulia Gabriela David
- Department of Analytical Chemistry and Physical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90-92, District 5, 050663 Bucharest, Romania
| | - Maria Lorena Jinga
- Department of Analytical Chemistry and Physical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90-92, District 5, 050663 Bucharest, Romania
| | - Dana Elena Popa
- Department of Analytical Chemistry and Physical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90-92, District 5, 050663 Bucharest, Romania
| | - Mihaela Buleandra
- Department of Analytical Chemistry and Physical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90-92, District 5, 050663 Bucharest, Romania
| | - Emilia Elena Iorgulescu
- Department of Analytical Chemistry and Physical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90-92, District 5, 050663 Bucharest, Romania
| | - Adela Magdalena Ciobanu
- Department of Psychiatry “Prof. Dr. Al. Obregia” Clinical Hospital of Psychiatry, Berceni Av. 10, District 4, 041914 Bucharest, Romania
- Discipline of Psychiatry, Neurosciences Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, Dionisie Lupu Street 37, 020021 Bucharest, Romania
| |
Collapse
|
4
|
Zanoni C, Spina S, Magnaghi LR, Guembe-Garcia M, Biesuz R, Alberti G. Potentiometric MIP-Modified Screen-Printed Cell for Phenoxy Herbicides Detection. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16488. [PMID: 36554364 PMCID: PMC9779394 DOI: 10.3390/ijerph192416488] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
In this study, a molecularly imprinted polymer (MIP)-based screen-printed cell is developed for detecting phenoxy herbicides using 2-methyl-4-chlorophenoxyacetic acid (MCPA) as the template. MCPA is a phenoxy herbicide widely used since 1945 to control broadleaf weeds via growth regulation, primarily in pasture and cereal crops. The potentiometric cell consists of a silver/silver chloride pseudo-reference electrode and a graphite working electrode coated with a MIP film. The polymeric layer is thermally formed after drop-coating of a pre-polymeric mixture composed of the reagents at the following molar ratio: 1 MCPA: 15 MAA (methacrylic acid): 7 EGDMA (ethylene glycol dimethacrylate). After template removal, the recognition cavities function as the ionophore of a classical ion selective electrode (ISE) membrane. The detected ion is the deprotonated MCPA specie, negatively charged, so the measurements were performed in phosphate buffer at pH 5.5. A linear decrease of the potential with MCPA concentration, ranging from 4 × 10-8 to 1 × 10-6 mol L-1, was obtained. The detection limit and the limit of quantification were, respectively, 10 nmol L-1 and 40 nmol L-1. A Nernstian slope of about -59 mV/dec was achieved. The method has precision and LOD required for MCPA determination in contaminated environmental samples.
Collapse
Affiliation(s)
- Camilla Zanoni
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Stefano Spina
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Lisa Rita Magnaghi
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Unità di Ricerca di Pavia, INSTM, Via G. Giusti 9, 50121 Firenze, Italy
| | - Marta Guembe-Garcia
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Raffaela Biesuz
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Unità di Ricerca di Pavia, INSTM, Via G. Giusti 9, 50121 Firenze, Italy
| | - Giancarla Alberti
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| |
Collapse
|