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Silina YE. One-step electrodeposited hybrid nanofilms in amperometric biosensor development. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2424-2443. [PMID: 38592715 DOI: 10.1039/d4ay00290c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
This review summarizes recent developments in amperometric biosensors, based on one-step electrodeposited organic-inorganic hybrid layers, used for analysis of low molecular weight compounds. The factors affecting self-assembly of one-step electrodeposited films, methods for verifying their composition, advantages, limitations and approaches affecting the electroanalytical performance of amperometric biosensors based on organic-inorganic hybrid layers were systemized. Moreover, issues related to the formation of one-step organic-inorganic hybrid functional layers with different structures in biosensors produced under the same electrodeposition parameters are discussed. The systemized dependencies can support the preliminary choice of functional sensing layers with architectures tuned for specific biotechnology and life science applications. Finally, the capabilities of one-step electrodeposition of organic-inorganic hybrid functional films beyond amperometric biosensors were highlighted.
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Affiliation(s)
- Yuliya E Silina
- Institute of Biochemistry, Saarland University, Campus B 2.2, Room 317, Saarbrücken, Germany.
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Zidarič T, Majer D, Maver T, Finšgar M, Maver U. The development of an electropolymerized, molecularly imprinted polymer (MIP) sensor for insulin determination using single-drop analysis. Analyst 2023; 148:1102-1115. [PMID: 36723087 DOI: 10.1039/d2an02025d] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An electrochemical sensor for the detection of insulin in a single drop (50 μL) was developed based on the concept of molecularly imprinted polymers (MIP). The synthetic MIP receptors were assembled on a screen-printed carbon electrode (SPCE) by the electropolymerization of pyrrole (Py) in the presence of insulin (the protein template) using cyclic voltammetry. After electropolymerization, insulin was removed from the formed polypyrrole (Ppy) matrix to create imprinting cavities for the subsequent analysis of the insulin analyte in test samples. The surface characterization, before and after each electrosynthesis step of the MIP sensors, was performed using atomic force microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The performance of the developed MIP-SPCE sensor was evaluated using a single drop of solution containing K3Fe(CN)6 and the square-wave voltammetry technique. The MIP-SPCE showed a linear concentration range of 20.0-70.0 pM (R2 = 0.9991), a limit of detection of 1.9 pM, and a limit of quantification of 6.2 pM. The rapid response time to the protein target and the portability of the developed sensor, which is considered a disposable MIP-based system, make this MIP-SPCE sensor a promising candidate for point-of-care applications. In addition, the MIP-SPCE sensor was successfully used to detect insulin in a pharmaceutical sample. The sensor was deemed to be accurate (the average recovery was 108.46%) and precise (the relative standard deviation was 7.23%).
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Affiliation(s)
- Tanja Zidarič
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia
| | - David Majer
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Tina Maver
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia.,University of Maribor, Faculty of Medicine, Department of Pharmacology, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Matjaž Finšgar
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Uroš Maver
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia.,University of Maribor, Faculty of Medicine, Department of Pharmacology, Taborska ulica 8, 2000 Maribor, Slovenia
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Thapa S, Heo YS. Optimization of a Single Substrate-Based Fluorometric Assay for Glucose and Lactate Measurement to Assess Preimplantation Single Embryo Quality and Blood in Obese Mouse and Clinical Human Samples. Anal Chem 2022; 94:16171-16179. [DOI: 10.1021/acs.analchem.2c03602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Seema Thapa
- Department of Biomedical Engineering, School of Medicine, Keimyung University, 1095 Dalgubeol-daero, Dalseo-gu, Daegu 42601, Republic of Korea
| | - Yun Seok Heo
- Department of Biomedical Engineering, School of Medicine, Keimyung University, 1095 Dalgubeol-daero, Dalseo-gu, Daegu 42601, Republic of Korea
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Label-free electrochemical detection of glucose and glycated hemoglobin (HbA1c). Biosens Bioelectron 2022; 221:114907. [DOI: 10.1016/j.bios.2022.114907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/15/2022]
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Ravariu C, Srinivasulu A, Mihaiescu DE, Musala S. Generalized Analytical Model for Enzymatic BioFET Transistors. BIOSENSORS 2022; 12:bios12070474. [PMID: 35884278 PMCID: PMC9313200 DOI: 10.3390/bios12070474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/07/2022] [Accepted: 06/26/2022] [Indexed: 11/16/2022]
Abstract
Software tools that are able to simulate the functionality or interactions of an enzyme biosensor with Metal Oxide Semiconductor (MOS), or any Field Effect Transistor (FET) as transducer, represent a gap in the market. Bio-devices, or Enzyme-FET, cannot be simulated by Atlas or equivalent software. This paper resolves this issue for the enzymatic block coupled with FETs’ role within biosensors. The first block has the concentration of biological analyte as the input signal and concentration of ions from the enzymatic reaction as the output signal. The modeling begins from the Michaelis–Menten formalism and analyzes the time dependence of the product concentrations that become the input signal for the next FET block. Comparisons within experimental data are provided. The analytical model proposed in this paper represents a general analytical tool in the design stage for enzymatic transistors used in clinical practices.
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Affiliation(s)
- Cristian Ravariu
- BioNEC Group, Department of Electronic Devices Circuits and Architectures, Faculty of Electronics ETTI, Polytechnic University of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- Correspondence:
| | - Avireni Srinivasulu
- School of Engineering & Technology, K.R. Mangalam University, Gurugram 122103, Haryana, India;
- Faculty of Engineering, JECRC University, Jaipur 303905, Rajasthan, India
| | - Dan Eduard Mihaiescu
- Organic Chemistry Department, Faculty of Chemistry, Polytechnic University of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
| | - Sarada Musala
- Department of Electronics and Communication Engineering, Vignan’s Foundation for Science, Technology and Research, Guntur 522213, Andhra Pradesh, India;
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The development of alginate-based amperometric nanoreactors for biochemical profiling of living yeast cells. Bioelectrochemistry 2022; 145:108082. [DOI: 10.1016/j.bioelechem.2022.108082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 12/27/2022]
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