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Kosri E, Ibrahim F, Thiha A, Madou M. Micro and Nano Interdigitated Electrode Array (IDEA)-Based MEMS/NEMS as Electrochemical Transducers: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12234171. [PMID: 36500794 PMCID: PMC9741053 DOI: 10.3390/nano12234171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/15/2022] [Indexed: 05/28/2023]
Abstract
Micro and nano interdigitated electrode array (µ/n-IDEA) configurations are prominent working electrodes in the fabrication of electrochemical sensors/biosensors, as their design benefits sensor achievement. This paper reviews µ/n-IDEA as working electrodes in four-electrode electrochemical sensors in terms of two-dimensional (2D) planar IDEA and three-dimensional (3D) IDEA configurations using carbon or metal as the starting materials. In this regard, the enhancement of IDEAs-based biosensors focuses on controlling the width and gap measurements between the adjacent fingers and increases the IDEA's height. Several distinctive methods used to expand the surface area of 3D IDEAs, such as a unique 3D IDEA design, integration of mesh, microchannel, vertically aligned carbon nanotubes (VACNT), and nanoparticles, are demonstrated and discussed. More notably, the conventional four-electrode system, consisting of reference and counter electrodes will be compared to the highly novel two-electrode system that adopts IDEA's shape. Compared to the 2D planar IDEA, the expansion of the surface area in 3D IDEAs demonstrated significant changes in the performance of electrochemical sensors. Furthermore, the challenges faced by current IDEAs-based electrochemical biosensors and their potential solutions for future directions are presented herein.
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Affiliation(s)
- Elyana Kosri
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Centre for Innovation in Medical Engineering (CIME), Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Fatimah Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Centre for Innovation in Medical Engineering (CIME), Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Centre of Printable Electronics, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Aung Thiha
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Centre for Innovation in Medical Engineering (CIME), Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Marc Madou
- Centre for Innovation in Medical Engineering (CIME), Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, CA 92697, USA
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, NL, Mexico
- Academia Mexicana de Ciencias, Ciudad de México 14400, CDMX, Mexico
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Doi H, Horio T, Choi YJ, Takahashi K, Noda T, Sawada K. CMOS-Based Redox-Type Label-Free ATP Image Sensor for In Vitro Sensitive Imaging of Extracellular ATP. SENSORS (BASEL, SWITZERLAND) 2021; 22:75. [PMID: 35009624 PMCID: PMC8747181 DOI: 10.3390/s22010075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Adenosine 5'-triphosphate (ATP) plays a crucial role as an extracellular signaling molecule in the central nervous system and is closely related to various nerve diseases. Therefore, label-free imaging of extracellular ATP dynamics and spatiotemporal analysis is crucial for understanding brain function. To decrease the limit of detection (LOD) of imaging extracellular ATP, we fabricated a redox-type label-free ATP image sensor by immobilizing glycerol-kinase (GK), L-α-glycerophosphate oxidase (LGOx), and horseradish peroxidase (HRP) enzymes in a polymer film on a gold electrode-modified potentiometric sensor array with a 37.3 µm-pitch. Hydrogen peroxide (H2O2) is generated through the enzymatic reactions from GK to LGOx in the presence of ATP and glycerol, and ATP can be detected as changes in its concentration using an electron mediator. Using this approach, the LOD for ATP was 2.8 µM with a sensitivity of 77 ± 3.8 mV/dec., under 10 mM working buffers at physiological pH, such as in in vitro experiments, and the LOD was great superior 100 times than that of the hydrogen ion detection-based image sensor. This redox-type ATP image sensor may be successfully applied for in vitro sensitive imaging of extracellular ATP dynamics in brain nerve tissue or cells.
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Abstract
Phosphorylation is a reversible, enzyme-controlled posttranslational process affecting approximately one-third of all proteins in eukaryotic cells at any given time. Any deviation in the degree and/or site of phosphorylation leads to an abnormal conformation of proteins, resulting in a decline or loss of their function. Knowledge of phosphorylation-related pathways is essential for understanding the understanding of the disease pathogenesis and for the design of new therapeutic strategies. Recent availability of various kinases at an affordable price differs in activity, specificity, and stability and provides the opportunity of studying and modulating this reaction in vitro. We can exploit this knowledge for other applications. There is an enormous potential to produce fully decorated and active recombinant proteins, either for biomedical or cosmetic applications. Closely related is the possibility to exploit current achievements and develop new safe and efficacious vaccines, drugs, and immunomodulators. In this review, we outlined the current enzyme-based possibilities for in vitro phosphorylation of peptides and recombinant proteins and the added value that immobilized kinases provide.
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Polyvinyl alcohol as a crucial omissible polymer to fabricate an impedimetric glucose biosensor based on hierarchical 3D-NPZnO/chitosan. Carbohydr Polym 2021; 266:118105. [DOI: 10.1016/j.carbpol.2021.118105] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/04/2021] [Accepted: 04/21/2021] [Indexed: 12/31/2022]
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Balbaied T, Moore E. Overview of Optical and Electrochemical Alkaline Phosphatase (ALP) Biosensors: Recent Approaches in Cells Culture Techniques. BIOSENSORS 2019; 9:E102. [PMID: 31450819 PMCID: PMC6784369 DOI: 10.3390/bios9030102] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/15/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022]
Abstract
Alkaline phosphatase (ALP), which catalyzes the dephosphorylation process of proteins, nucleic acids, and small molecules, can be found in a variety of tissues (intestine, liver, bone, kidney, and placenta) of almost all living organisms. This enzyme has been extensively used as a biomarker in enzyme immunoassays and molecular biology. ALP is also one of the most commonly assayed enzymes in routine clinical practice. Due to its close relation to a variety of pathological processes, ALP's abnormal level is an important diagnostic biomarker of many human diseases, such as liver dysfunction, bone diseases, kidney acute injury, and cancer. Therefore, the development of convenient and reliable assay methods for monitoring ALP activity/level is extremely important and valuable, not only for clinical diagnoses but also in the area of biomedical research. This paper comprehensively reviews the strategies of optical and electrochemical detection of ALP and discusses the electrochemical techniques that have been addressed to make them suitable for ALP analysis in cell culture.
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Affiliation(s)
- Thanih Balbaied
- University College Cork, Sensing & Separation Group, School of Chemistry and life Science Interface, Tyndall National Institute, T12R5CP Cork, Ireland
| | - Eric Moore
- University College Cork, Sensing & Separation Group, School of Chemistry and life Science Interface, Tyndall National Institute, T12R5CP Cork, Ireland.
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Liang J, Wang J, Zhang L, Wang S, Yao C, Zhang Z. Conductometric immunoassay of alpha-fetoprotein in sera of liver cancer patients using bienzyme-functionalized nanometer-sized silica beads. Analyst 2019; 144:265-273. [DOI: 10.1039/c8an01791c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A conductometric immunoassay protocol was designed for the sensitive detection of a liver cancer biomarker, alpha-fetoprotein (AFP), in biological fluids by using enzyme-conjugated nanometer-sized enzyme-doped silica beads.
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Affiliation(s)
- Jiaming Liang
- Institute of Biomedical Analytical Technology and Instrumentation
- Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an 710049
| | - Jing Wang
- Institute of Biomedical Analytical Technology and Instrumentation
- Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an 710049
| | - Luwei Zhang
- Institute of Biomedical Analytical Technology and Instrumentation
- Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an 710049
| | - Sijia Wang
- Institute of Biomedical Analytical Technology and Instrumentation
- Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an 710049
| | - Cuiping Yao
- Institute of Biomedical Analytical Technology and Instrumentation
- Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an 710049
| | - Zhenxi Zhang
- Institute of Biomedical Analytical Technology and Instrumentation
- Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an 710049
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A fluorescence aptasensor based on two-dimensional sheet metal-organic frameworks for monitoring adenosine triphosphate. Anal Chim Acta 2017; 998:60-66. [PMID: 29153087 DOI: 10.1016/j.aca.2017.10.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 10/19/2017] [Accepted: 10/22/2017] [Indexed: 12/24/2022]
Abstract
In the present study, a facile fluorescence aptasensor based on two-dimensional sheet metal-organic frameworks of N,N-bis(2-hydroxyethyl)dithiooxamidato copper(II) (H2dtoaCu) was developed for the sensitive detection of adenosine triphosphate (ATP). The sensing mechanism was based on the noncovalent interaction between FAM-labeled (fluorescein amidite) ATP aptamers and H2dtoaCu. In the absence of ATP, the FAM-labeled aptamer readily adsorbs onto H2dtoaCu, mainly via π-π stacking and hydrogen bond interactions between the nucleotide bases and the H2dtoaCu surface, leading to the reduction of fluorescence intensity of the FAM by photoinduced electron transfer (PET). In the presence of ATP, the FAM-labeled aptamer specifically forms ATP-binding aptamer complexes which exhibit only weak adsorption on the H2dtoaCu surface. Thus, the fluorescence of the FAM-labeled ATP aptamer remained largely unchanged. The fluorescence aptasensor exhibited a good linear relationship between the fluorescence intensity and the logarithm concentration of ATP over a range of 25-400 nM, with a detection limit of 8.19 nM (3S/N). ATP analogs such as guanosine triphosphate, uridine triphosphate, and cytidine triphosphate have negligible effect on the aptasensor performance due to the high selectivity of the ATP aptamer to its target, showing promising potential in real sample analysis.
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Lee YN, Okumura K, Iwata T, Takahashi K, Hattori T, Ishida M, Sawada K. Development of an ATP and hydrogen ion image sensor using a patterned apyrase-immobilized membrane. Talanta 2016; 161:419-424. [PMID: 27769427 DOI: 10.1016/j.talanta.2016.08.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/26/2016] [Accepted: 08/26/2016] [Indexed: 01/01/2023]
Abstract
A bio-image sensor using a patterned apyrase-immobilized membrane was developed to visualize the activities of adenosine triphosphate (ATP) and H+ ion in real-time. An enzymatic membrane patterning technique was suggested to immobilize apyrase on a specific sensing area of a charge coupled device (CCD)-type image sensor. It was able to observe the spatiotemporal information of ATP and H+ ion. The smallest size of a patterned membrane is 250×250µm2. The fabrication parameters of the patterned membrane, such as its thickness and the intensity of the incident light used for photolithography, were optimized experimentally. The sensing area under the patterned apyrase-immobilized membrane revealed a linear response up to 0.6mM of ATP concentration with a sensitivity of 37.8mV/mM. Meanwhile, another sensing area without the patterned membrane measured the diffused H+ ion from nearby membranes. This diffusion characteristics were analyzed to determine a measurement time that can minimize the undesirable impact of the diffused ions. In addition, the newly developed bio-image sensor successfully reconstructed ATP and H+ ion dynamics into sequential 2-dimensional images.
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Affiliation(s)
- You-Na Lee
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan.
| | - Koichi Okumura
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan; Electronics-Inspired Interdisciplinary Research Institute, Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Tatsuya Iwata
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Kazuhiro Takahashi
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Toshiaki Hattori
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Makoto Ishida
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan; Electronics-Inspired Interdisciplinary Research Institute, Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Kazuaki Sawada
- Electrical & Electronic Information Eng., Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan; Electronics-Inspired Interdisciplinary Research Institute, Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-cho, Toyohashi 441-8580, Japan
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