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Çiçek Özkul SL, Kaba İ, Ozdemir Olgun FA. Unravelling the potential of magnetic nanoparticles: a comprehensive review of design and applications in analytical chemistry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3620-3640. [PMID: 38814019 DOI: 10.1039/d4ay00206g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
The study of nanoparticles has emerged as a prominent research field, offering a wide range of applications across various disciplines. With their unique physical and chemical properties within the size range of 1-100 nm, nanoparticles have garnered significant attention. Among them, magnetic nanoparticles (MNPs) exemplify promising super-magnetic characteristics, especially in the 10-20 nm size range, making them ideal for swift responses to applied magnetic fields. In this comprehensive review, we focus on MNPs suitable for analytical purposes. We investigate and classify them based on their analytical applications, synthesis routes, and overall utility, providing a detailed literature summary. By exploring a diverse range of MNPs, this review offers valuable insights into their potential application in various analytical scenarios.
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Affiliation(s)
- Serra Lale Çiçek Özkul
- Istanbul Technical University, Faculty of Science and Letters, Department of Chemistry, Maslak Campus, Sariyer, Istanbul, Turkey
| | - İbrahim Kaba
- Marmara University, Faculty of Engineering, Department of Chemical Engineering, Maltepe, Istanbul, Turkey
| | - Fatos Ayca Ozdemir Olgun
- Istanbul Health and Technology University, Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Sutluce, Beyoglu, Istanbul, Turkey.
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2
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Ganesh PS, Elugoke SE, Lee SH, Kim SY, Ebenso EE. Smart and emerging point of care electrochemical sensors based on nanomaterials for SARS-CoV-2 virus detection: Towards designing a future rapid diagnostic tool. CHEMOSPHERE 2024; 352:141269. [PMID: 38307334 DOI: 10.1016/j.chemosphere.2024.141269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
In the recent years, researchers from all over the world have become interested in the fabrication of advanced and innovative electrochemical and/or biosensors for respiratory virus detection with the use of nanotechnology. These fabricated sensors demonstrated a number of benefits, including precision, affordability, accessibility, and miniaturization which makes them a promising test method for point-of-care (PoC) screening for SARS-CoV-2 viral infection. In order to comprehend the principles of electrochemical sensing and the role of various types of sensing interfaces, we comprehensively explored the underlying principles of electroanalytical methods and terminologies related to it in this review. In addition, it is addressed how to fabricate electrochemical sensing devices incorporating nanomaterials as graphene, metal/metal oxides, metal organic frameworks (MOFs), MXenes, quantum dots, and polymers. We took an effort to carefully compile current developments, advantages, drawbacks, possible solutions in nanomaterials based electrochemical sensors.
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Affiliation(s)
- Pattan Siddappa Ganesh
- Interaction Laboratory, Advanced Technology Research Center, Future Convergence Engineering, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do, 330-708, Republic of Korea.
| | - Saheed Eluwale Elugoke
- Centre for Material Science, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa
| | - Seok-Han Lee
- Interaction Laboratory, Advanced Technology Research Center, Future Convergence Engineering, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do, 330-708, Republic of Korea
| | - Sang-Youn Kim
- Interaction Laboratory, Advanced Technology Research Center, Future Convergence Engineering, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do, 330-708, Republic of Korea.
| | - Eno E Ebenso
- Centre for Material Science, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa.
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3
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Dong M, Gao Z, Zhang Y, Cai J, Li J, Xu P, Jiang H, Gu J, Wang J. Ultrasensitive electrochemical biosensor for detection of circulating tumor cells based on a highly efficient enzymatic cascade reaction. RSC Adv 2023; 13:12966-12972. [PMID: 37124001 PMCID: PMC10130820 DOI: 10.1039/d3ra01160g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/14/2023] [Indexed: 05/02/2023] Open
Abstract
There has been great interest in the enzymatic cascade amplification strategy for the electrochemical detection of circulating tumor cells (CTCs). In this work, we designed a highly efficient enzymatic cascade reaction based on a multiwalled carbon nanotubes-chitosan (MWCNTs-CS) composite for detection of CTCs. A high electrochemical effective surface area was obtained for a MWCNTs-CS-modified glassy carbon electrode (GCE) for loading glucose oxidase (GOD), as well as a high loading rate and high electrical activity of the enzyme. As a 'power source', the MWCNTs-CS composites provided a strong driving power for horseradish peroxidase (HRP) on the surface of polystyrene (PS) microspheres, which acted as probes for capturing CTCs and allowed the reaction to proceed with further facilitation of electron transfer. Aptamer, CTCs, and PS microspheres with HRP and anti-epithelial cell adhesion molecule (anti-EpCAM) antibody were assembled on the MWCNTs-CS/GCE to allow for the modulation of enzyme distance at the micrometer level, and thus ultra-long-range signal transmission was made possible. An ultrasensitive response to CTCs was obtained via this proposed sensing strategy, with a linear range from 10 cell mL-1 to 6 × 106 cell mL-1 and a detection limit of 3 cell mL-1. Moreover, this electrochemical sensor possessed the capability to detect CTCs in serum samples with satisfactory accuracy, which indicated great potential for early diagnosis and clinical analysis of cancer.
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Affiliation(s)
- Min Dong
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Zhihong Gao
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Yating Zhang
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Jiahui Cai
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Jian Li
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Panpan Xu
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Hong Jiang
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Jianmin Gu
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
- State Key Laboratory of Metastable Materials Science and Technology (MMST), Yanshan University Qinhuangdao 066004 China
| | - Jidong Wang
- Hebei Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, School of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
- State Key Laboratory of Metastable Materials Science and Technology (MMST), Yanshan University Qinhuangdao 066004 China
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4
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An innovative wireless electrochemical card sensor for field-deployable diagnostics of Hepatitis B surface antigen. Sci Rep 2023; 13:3523. [PMID: 36864072 PMCID: PMC9981757 DOI: 10.1038/s41598-023-30340-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
A wireless-based detection utilizing an innovative electrochemical card (eCard) sensor controlled by a smartphone was developed for targeting Hepatitis B surface antigen (HBsAg). A simple label-free electrochemical platform allows a convenient operation for point-of-care diagnosis. A disposable screen-printed carbon electrode was modified straightforwardly layer-by-layer with chitosan followed by glutaraldehyde, allowing a simple but effective, reproducible, and stable method for covalently immobilizing antibodies. The modification and immobilization processes were verified by electrochemical impedance spectroscopy and cyclic voltammetry. The smartphone-based eCard sensor was used to quantify HBsAg by measuring the change in current response of the [Fe(CN)6]3-/4- redox couple before and after the presence of HBsAg. Under the optimal conditions, the linear calibration curve for HBsAg was found to be 10-100,000 IU/mL with a detection limit of 9.55 IU/mL. The HBsAg eCard sensor was successfully applied to detect 500 chronic HBV-infected serum samples with satisfactory results, demonstrating the excellent applicability of this system. The sensitivity and specificity of this sensing platform were found to be 97.75% and 93%, respectively. As illustrated, the proposed eCard immunosensor offered a rapid, sensitive, selective, and easy-to-use platform for healthcare providers to rapidly determine the infection status of HBV patients.
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Shoaib A, Darraj A, Khan ME, Azmi L, Alalwan A, Alamri O, Tabish M, Khan AU. A Nanotechnology-Based Approach to Biosensor Application in Current Diabetes Management Practices. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:867. [PMID: 36903746 PMCID: PMC10005622 DOI: 10.3390/nano13050867] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Diabetes mellitus is linked to both short-term and long-term health problems. Therefore, its detection at a very basic stage is of utmost importance. Research institutes and medical organizations are increasingly using cost-effective biosensors to monitor human biological processes and provide precise health diagnoses. Biosensors aid in accurate diabetes diagnosis and monitoring for efficient treatment and management. Recent attention to nanotechnology in the fast-evolving area of biosensing has facilitated the advancement of new sensors and sensing processes and improved the performance and sensitivity of current biosensors. Nanotechnology biosensors detect disease and track therapy response. Clinically efficient biosensors are user-friendly, efficient, cheap, and scalable in nanomaterial-based production processes and thus can transform diabetes outcomes. This article is more focused on biosensors and their substantial medical applications. The highlights of the article consist of the different types of biosensing units, the role of biosensors in diabetes, the evolution of glucose sensors, and printed biosensors and biosensing systems. Later on, we were engrossed in the glucose sensors based on biofluids, employing minimally invasive, invasive, and noninvasive technologies to find out the impact of nanotechnology on the biosensors to produce a novel device as a nano-biosensor. In this approach, this article documents major advances in nanotechnology-based biosensors for medical applications, as well as the hurdles they must overcome in clinical practice.
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Affiliation(s)
- Ambreen Shoaib
- Department of Clinical Pharmacy, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Ali Darraj
- Department of Medicine, College of Medicine, Shaqra University, Shaqra 11961, Saudi Arabia
| | - Mohammad Ehtisham Khan
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan 45142, Saudi Arabia
| | - Lubna Azmi
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Lucknow, Lucknow 226025, India
| | - Abdulaziz Alalwan
- University Family Medicine Center, Department of Family and Community Medicine, College of Medicine, King Saud University Medical City, Riyadh 2925, Saudi Arabia
| | - Osamah Alamri
- Consultant of Family Medicine, Ministry of Health, Second Health Cluster, Riyadh 2925, Saudi Arabia
| | - Mohammad Tabish
- Department of Pharmacology, College of Medicine, Shaqra University, Shaqra 11961, Saudi Arabia
| | - Anwar Ulla Khan
- Department of Electrical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan 45142, Saudi Arabia
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6
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Electron transfer in protein modifications: from detection to imaging. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1417-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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7
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Chmayssem A, Shalayel I, Marinesco S, Zebda A. Investigation of GOx Stability in a Chitosan Matrix: Applications for Enzymatic Electrodes. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23010465. [PMID: 36617063 PMCID: PMC9824325 DOI: 10.3390/s23010465] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 06/12/2023]
Abstract
In this study, we designed a new biosensing membrane for the development of an electrochemical glucose biosensor. To proceed, we used a chitosan-based hydrogel that entraps glucose oxidase enzyme (GOx), and we crosslinked the whole matrix using glutaraldehyde, which is known for its quick and reactive crosslinking behavior. Then, the stability of the designed biosensors was investigated over time, according to different storage conditions (in PBS solution at temperatures of 4 °C and 37 °C and in the presence or absence of glucose). In some specific conditions, we found that our biosensor is capable of maintaining its stability for more than six months of storage. We also included catalase to protect the biosensing membranes from the enzymatic reaction by-products (e.g., hydrogen peroxide). This design protects the biocatalytic activity of GOx and enhances the lifetime of the biosensor.
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Affiliation(s)
- Ayman Chmayssem
- Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, 38000 Grenoble, France
| | - Ibrahim Shalayel
- Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, 38000 Grenoble, France
| | - Stéphane Marinesco
- Plate-Forme Technologique BELIV, Lyon Neuroscience Research Center, CNRS UMR5292, INSERM U1028, Université Claude Bernard Lyon 1, 69373 Lyon, France
| | - Abdelkader Zebda
- Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, 38000 Grenoble, France
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Lou B, Liu Y, Shi M, Chen J, Li K, Tan Y, Chen L, Wu Y, Wang T, Liu X, Jiang T, Peng D, Liu Z. Aptamer-based biosensors for virus protein detection. Trends Analyt Chem 2022; 157:116738. [PMID: 35874498 PMCID: PMC9293409 DOI: 10.1016/j.trac.2022.116738] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/23/2022] [Accepted: 07/13/2022] [Indexed: 02/07/2023]
Abstract
Virus threatens life health seriously. The accurate early diagnosis of the virus is vital for clinical control and treatment of virus infection. Aptamers are small single-stranded oligonucleotides (DNAs or RNAs). In this review, we summarized aptasensors for virus detection in recent years according to the classification of the viral target protein, and illustrated common detection mechanisms in the aptasensors (colorimetry, fluorescence assay, surface plasmon resonance (SPR), surface-enhanced raman spectroscopy (SERS), electrochemical detection, and field-effect transistor (FET)). Furthermore, aptamers against different target proteins of viruses were summarized. The relationships between the different biomarkers of the viruses and the detection methods, and their performances were revealed. In addition, the challenges and future directions of aptasensors were discussed. This review will provide valuable references for constructing on-site aptasensors for detecting viruses, especially the SARS-CoV-2.
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Affiliation(s)
- Beibei Lou
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Yanfei Liu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Meilin Shi
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, PR China
| | - Jun Chen
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Ke Li
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Yifu Tan
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Liwei Chen
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Yuwei Wu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Ting Wang
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Xiaoqin Liu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Ting Jiang
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Dongming Peng
- Department of Medicinal Chemistry, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, PR China
| | - Zhenbao Liu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China.,Molecular Imaging Research Center of Central South University, Changsha, 410008, Hunan, PR China
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Vasudevan M, Perumal V, Karuppanan S, Ovinis M, Bothi Raja P, Gopinath SCB, Immanuel Edison TNJ. A Comprehensive Review on Biopolymer Mediated Nanomaterial Composites and Their Applications in Electrochemical Sensors. Crit Rev Anal Chem 2022; 54:1871-1894. [PMID: 36288094 DOI: 10.1080/10408347.2022.2135090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Biopolymers are an attractive green alternative to conventional polymers, owing to their excellent biocompatibility and biodegradability. However, their amorphous and nonconductive nature limits their potential as active biosensor material/substrate. To enhance their bio-analytical performance, biopolymers are combined with conductive materials to improve their physical and chemical characteristics. We review the main advances in the field of electrochemical biosensors, specifically the structure, approach, and application of biopolymers, as well as their conjugation with conductive nanoparticles, polymers and metal oxides in green-based noninvasive analytical biosensors. In addition, we reviewed signal measurement, substrate bio-functionality, biochemical reaction, sensitivity, and limit of detection (LOD) of different biopolymers on various transducers. To date, pectin biopolymer, when conjugated with either gold nanoparticles, polypyrrole, reduced graphene oxide, or multiwall carbon nanotubes forming nanocomposites on glass carbon electrode transducer, tends to give the best LOD, highest sensitivity and can detect multiple analytes/targets. This review will spur new possibilities for the use of biosensors for medical diagnostic tests.
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Affiliation(s)
- Mugashini Vasudevan
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
| | - Veeradasan Perumal
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
| | - Saravanan Karuppanan
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
| | - Mark Ovinis
- School of Engineering and the Built Environment, Birmingham City University, Birmingham, UK
| | - Pandian Bothi Raja
- School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Kangar 01000 & Faculty of Chemical Engineering & Technology, Arau 02600, Universiti Malaysia Perlis, Perlis, Malaysia
- Micro System Technology, Centre of Excellence (CoE), Universiti Malaysia Perlis (UniMAP), Arau 02600, Pauh Campus, Perlis, Malaysia
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Han B, Wen X, Wang J, Sun Y. A Novel Nanocomposite of Zn(II)-Protoporphyrin-Chitosan-Multi Walled Carbon Nanotubes and the Application to Caffeic Acid Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3412. [PMID: 36234540 PMCID: PMC9565613 DOI: 10.3390/nano12193412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Caffeic acid is an antioxidant that has been widely been related to the health benefits of people in recent years. In this paper, the amino side chains of chitosan (CS) were modified with protoporphyrin IX by amide cross-linking, and then Zn ions were chelated. The properties of metalloporphyrin-preparing functionalized multi-walled carbon nanotubes (MWCNTs) and Zn ions chelated by protoporphyrin IX composites were used as sensitive-selective electrochemical biosensors for the determination of caffeic acid. The morphology and structure of nanocomposite Zn-PPIX-CS-MWCNTs were observed by X-ray spectroscopy mapping (EDX mapping), transmission electron microscopy (TEM), and Fourier-transform infrared spectroscopy (FTIR). The electrochemical behaviors of Zn-PPIX-CS-MWCNT-modified glassy carbon (GC) electrodes were evaluated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results show that the modified electrode had good electrocatalytic activity towards caffeic acid with a wide linear range of 0.0008-1.6 mM, an excellent sensitivity of 886.90 µAmM-1cm-1, and a detection limit of 0.022 µM. In addition, the caffeic acid sensor had excellent reproducibility, stability, and selectivity to various interfering substances. Therefore, the modified electrode prepared by this experiment can also be applied to electrochemical sensors of other substances.
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Affiliation(s)
- Bingkai Han
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, College of Exercise Health, Tianjin University of Sport, No. 16 Donghai Road, West Tuanbo New Town, Jinghai District, Tianjin 301617, China
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Weijin Road No. 94, Tianjin 300071, China
| | - Xin Wen
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, College of Exercise Health, Tianjin University of Sport, No. 16 Donghai Road, West Tuanbo New Town, Jinghai District, Tianjin 301617, China
| | - Jinneng Wang
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, College of Exercise Health, Tianjin University of Sport, No. 16 Donghai Road, West Tuanbo New Town, Jinghai District, Tianjin 301617, China
| | - Yingrui Sun
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, College of Exercise Health, Tianjin University of Sport, No. 16 Donghai Road, West Tuanbo New Town, Jinghai District, Tianjin 301617, China
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11
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Hu Q, Wan J, Luo Y, Li S, Cao X, Feng W, Liang Y, Wang W, Niu L. Electrochemical Detection of Femtomolar DNA via Boronate Affinity-Mediated Decoration of Polysaccharides with Electroactive Tags. Anal Chem 2022; 94:12860-12865. [PMID: 36070236 DOI: 10.1021/acs.analchem.2c02894] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In view of their high efficiency and cost-effectiveness, polymers are of great promise as carriers for signal tags in amplified detection. Herein, we present a polysaccharide-amplified method for the electrochemical detection of a BRCA1 breast cancer gene-derived DNA target at the femtomolar levels. Briefly, peptide nucleic acid (PNA) with a complementary sequence was tethered as the capture probe for the DNA target, to which carboxyl group-containing polysaccharides were then attached via facile phosphate-Zr(IV)-carboxylate crosslinking, followed by the decoration of polysaccharide chains with electroactive ferrocene (Fc) signal tags via affinity coupling between a cis-diol site and phenylboronic acid (PBA) group. As the polysaccharide chain contains hundreds of cis-diol sites, boronate affinity can enable the site-specific decoration of each polysaccharide chain with hundreds of Fc signal tags, efficiently transducing each target capture event into the decoration of many Fc signal tags. As polysaccharides are cheap, renewable, ubiquitous, and biodegradable natural biopolymers, the use of polysaccharides for signal amplification offers the benefits of high efficiency, cost-effectiveness, excellent biocompatibility, and environmental friendliness. The linear range of the polysaccharide-amplified method for DNA detection was demonstrated to be from 10 fM to 10 nM (R2 = 0.996), with the detection limit as low as 2.9 fM. The results show that this method can also discriminate single base mismatch with satisfactory selectivity and can be applied to DNA detection in serum samples. In view of these merits, the polysaccharide-amplified PNA-based electrochemical method holds great promise in DNA detection with satisfactory sensitivity and selectivity.
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Affiliation(s)
- Qiong Hu
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Jianwen Wan
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yilin Luo
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Shiqi Li
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Xiaojing Cao
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Wenxing Feng
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yiyi Liang
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Wei Wang
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Li Niu
- Guangzhou Key Laboratory of Sensing Materials and Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
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Boumya W, Taoufik N, Achak M, Bessbousse H, Elhalil A, Barka N. Electrochemical sensors and biosensors for the determination of diclofenac in pharmaceutical, biological and water samples. TALANTA OPEN 2021. [DOI: 10.1016/j.talo.2020.100026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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13
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Gupta P, Rahm CE, Griesmer B, Alvarez NT. Carbon Nanotube Microelectrode Set: Detection of Biomolecules to Heavy Metals. Anal Chem 2021; 93:7439-7448. [PMID: 33988989 DOI: 10.1021/acs.analchem.1c00360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An ultrasensitive electrochemical microelectrode set (μ-ES), where all three electrodes are made of highly densified carbon nanotube fiber (HD-CNTf) cross sections (length ∼40 μm), embedded in an inert polymer matrix, and exposed open-ended CNTs at the interface, is presented here. Bare open ends of HD-CNTf rods were used as the working (∼40 μm diameter) and counter (∼94 μm diameter) electrodes, while the cross section of a ∼94 μm diameter was electroplated with Ag/AgCl and coated with Nafion to employ as a quasi-reference electrode. The Ag/AgCl/Nafion-coated HD-CNTf rod quasi-reference electrode provided a very stable potential comparable to the commercial porous-junction Ag/AgCl reference electrode. The HD-CNTf rod μ-ES has been evaluated by electrochemical determination of biologically important analytes, i.e., dopamine (DA), β-nicotinamide adenine dinucleotide (NADH), a diuretic drug, i.e., furosemide, and a heavy metal, i.e., lead ions (Pb2+). Different voltammetric techniques were employed during the study, i.e., cyclic voltammetry (CV), square wave voltammetry (SWV), amperometry, and square wave anodic stripping voltammetry (SWASV). The direct metallic connection to CNTs gives access to the exceptional properties of highly ordered open-ended CNTs as electrochemical sensors. The distinct structural and electronic properties of aligned HD-CNTf rods in the μ-ES demonstrate fast electron transfer kinetics and offer excellent detection performance during testing for different analytes with wide linear ranges, excellent sensitivity, and very low limits of detection.
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Affiliation(s)
- Pankaj Gupta
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Connor E Rahm
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Benjamin Griesmer
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Noe T Alvarez
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
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14
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Bucur B, Purcarea C, Andreescu S, Vasilescu A. Addressing the Selectivity of Enzyme Biosensors: Solutions and Perspectives. SENSORS (BASEL, SWITZERLAND) 2021; 21:3038. [PMID: 33926034 PMCID: PMC8123588 DOI: 10.3390/s21093038] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/23/2022]
Abstract
Enzymatic biosensors enjoy commercial success and are the subject of continued research efforts to widen their range of practical application. For these biosensors to reach their full potential, their selectivity challenges need to be addressed by comprehensive, solid approaches. This review discusses the status of enzymatic biosensors in achieving accurate and selective measurements via direct biocatalytic and inhibition-based detection, with a focus on electrochemical enzyme biosensors. Examples of practical solutions for tackling the activity and selectivity problems and preventing interferences from co-existing electroactive compounds in the samples are provided such as the use of permselective membranes, sentinel sensors and coupled multi-enzyme systems. The effect of activators, inhibitors or enzymatic substrates are also addressed by coupled enzymatic reactions and multi-sensor arrays combined with data interpretation via chemometrics. In addition to these more traditional approaches, the review discusses some ingenious recent approaches, detailing also on possible solutions involving the use of nanomaterials to ensuring the biosensors' selectivity. Overall, the examples presented illustrate the various tools available when developing enzyme biosensors for new applications and stress the necessity to more comprehensively investigate their selectivity and validate the biosensors versus standard analytical methods.
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Affiliation(s)
- Bogdan Bucur
- National Institute for Research and Development in Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania;
| | - Cristina Purcarea
- Institute of Biology, 296 Splaiul Independentei, 060031 Bucharest, Romania;
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13676, USA;
| | - Alina Vasilescu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101 Bucharest, Romania
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15
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Rani R, Singh G, Batra K, Minakshi P. Bioengineered Polymer/Composites as Advanced Biological Detection of Sorbitol: An Application in Healthcare Sector. Curr Top Med Chem 2021; 20:963-981. [PMID: 32141419 DOI: 10.2174/1568026620666200306131416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/20/2020] [Accepted: 01/31/2020] [Indexed: 12/23/2022]
Abstract
Bioengineered polymers and nanomaterials have emerged as promising and advanced materials for the fabrication and development of novel biosensors. Nanotechnology-enabled biosensor methods have high sensitivity, selectivity and more rapid detection of an analyte. Biosensor based methods are more rapid and simple with higher sensitivity and selectivity and can be developed for point-of-care diagnostic testing. Development of a simple, sensitive and rapid method for sorbitol detection is of considerable significance to efficient monitoring of diabetes-associated disorders like cataract, neuropathy, and nephropathy at initial stages. This issue encourages us to write a review that highlights recent advancements in the field of sorbitol detection as no such reports have been published till the date. The first section of this review will be dedicated to the conventional approaches or methods that had been playing a role in detection. The second part focused on the emerging field i.e. biosensors with optical, electrochemical, piezoelectric, etc. approaches for sorbitol detection and the importance of its detection in healthcare application. It is expected that this review will be very helpful for readers to know the different conventional and recent detection techniques for sorbitol at a glance.
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Affiliation(s)
- Ruma Rani
- ICAR-National Research Centre on Equines, Hisar-125001, India
| | - Geeta Singh
- Deenbandhu Chhotu Ram University of Science and Technology, Murthal-131027, Sonipat, India
| | - Kanisht Batra
- Department of Animal Biotechnology, LLR University of Veterinary and Animal Sciences, Hisar-125001, Haryana, India
| | - Prasad Minakshi
- Department of Animal Biotechnology, LLR University of Veterinary and Animal Sciences, Hisar-125001, Haryana, India
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16
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Kalyani T, Sangili A, Nanda A, Prakash S, Kaushik A, Kumar Jana S. Bio-nanocomposite based highly sensitive and label-free electrochemical immunosensor for endometriosis diagnostics application. Bioelectrochemistry 2021; 139:107740. [PMID: 33524653 DOI: 10.1016/j.bioelechem.2021.107740] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 12/19/2022]
Abstract
In this research, for the first time, a bio-nanocomposites based highly sensitive and label-free electrochemical immunosensor is reported with the aim of endometriosis diagnostics application. Multiwalled carbon nanotube and magnetite nanoparticle (MWCNT-Fe3O4) was dispersed in chitosan (CS) to fabricate a bio-nanocomposite to immobilize very monoclonal specific antibody (via cross-linking using glutaraldehyde) for selective electrochemical immuno-sensing of carbohydrate antigen 19-9 (CA19-9), a potential biomarker for endometriosis diagnostics. Well-characterized Anti-AbsCA19-9/CS-MWCNT-Fe3O4 immune-electrode fabricated on glassy carbon electrode (GCE) successfully detect CA 19-9 and exhibited a high sensitivity as (2.55 µA pg-1 cm-1), a detection limit of 0.163 pg mL-1, detection range from 1.0 pg mL-1 to 100 ng mL-1. Our fabricated electrochemical AbsCA19-9/CS-MWCNT-Fe3O4 immunosensor performed CA19-9 sensing in physiological range and at a very level which suggest it application for early-stage diagnostics, diseases monitoring, and optimization of therapy. To claim the clinical application, our sensor was tested using real samples and sensing performance was validated using enzyme-linked immune-sorbent assay (ELISA). The results of the studies projected AbsCA19-9/CS-MWCNT-Fe3O4 electrochemical CA19-9 immunosensor as a potential and affordable alternate of conventional techniques like ELISA. We believe that our fabricated sensor can be the plane of a disease's management program due to affordable, rapid, label-free, and sensitive detection of a targeted biomarker.
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Affiliation(s)
- Thangapandi Kalyani
- Department of Biotechnology, National Institute of Technology, Papum Pare 791112, Arunchal Pradesh, India
| | - Arumugam Sangili
- Department of Biotechnology, National Institute of Technology, Papum Pare 791112, Arunchal Pradesh, India; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Amalesh Nanda
- Department of Biotechnology, National Institute of Technology, Papum Pare 791112, Arunchal Pradesh, India
| | - Sengodu Prakash
- Department of Chemistry, Alagappa University, Karaikudi 630003, Tamilnadu, India
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Natural Sciences, Division of Sciences, Art, & Mathematics, Florida Polytechnic University, Lakeland FL-33805, USA.
| | - Saikat Kumar Jana
- Department of Biotechnology, National Institute of Technology, Papum Pare 791112, Arunchal Pradesh, India.
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17
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Annu, Raja AN. Recent development in chitosan-based electrochemical sensors and its sensing application. Int J Biol Macromol 2020; 164:4231-4244. [DOI: 10.1016/j.ijbiomac.2020.09.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/12/2022]
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18
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Zhang Y, Huang W, Yin X, Sarpong KA, Zhang L, Li Y, Zhao S, Zhou H, Yang W, Xu W. Computer-aided design and synthesis of molecular imprinting polymers based on doubly oriented functional multiwalled carbon nanotubes for electrochemically sensing bisphenol A. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104767] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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19
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Highly sensitive electrochemical BPA sensor based on titanium nitride-reduced graphene oxide composite and core-shell molecular imprinting particles. Anal Bioanal Chem 2020; 413:1081-1090. [PMID: 33247340 DOI: 10.1007/s00216-020-03069-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/28/2020] [Accepted: 11/13/2020] [Indexed: 12/15/2022]
Abstract
A sensitive electrochemical sensor was proposed via combining molecular imprinting technique with the graphene material-doped titanium nitride. The novel graphene with 3-dimensional structure displayed more binding sites and better electrochemical properties. Moreover, this study focused on coating pyrrole with electrical conductivity on the surface of silica as a monomer, and BPA as the template. The interaction made specific detection possible, between monomer and template. With a series of characterizations and electrochemical measurements, CPE (carbon paste electrode)-contained TiN-rGO composite was proved to have conductivity improved. Also, the modified polymer performed well selectivity which reflected in that it was almost impervious to distractions. Under optimized conditions, a linear dependence was observed from 0.5 to 100 nmol L-1 with a detection limit of 0.19 nmol L-1. The sensor explicated outstanding repeatability via repetitive experiment with the RSD of 0.02%, while the results of stability experiment reached the RSD of 1.90%. Eventually, it was used to analyze BPA residues in 3 kinds of daily supplies. The results indicated the potential of the sensor in environmental detection prospectively.
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20
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Liu Q, Bai W, Guo Z, Zheng X. Enhanced electrochemiluminescence of Ru(bpy) 3 2+ -doped silica nanoparticles by chitosan/Nafion shell@carbon nanotube core-modified electrode. LUMINESCENCE 2020; 36:642-650. [PMID: 33171543 DOI: 10.1002/bio.3979] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/26/2020] [Accepted: 11/04/2020] [Indexed: 11/11/2022]
Abstract
Although Ru(bpy)3 2+ -doped silica nanoparticles have been widely explored as the labelling tags for electrochemiluminescence (ECL) sensing different targets, the poor electrical conductive properties of the silica nano-matrix greatly limit their ECL sensitivity. Therefore, a novel scheme to overcome this drawback on Ru(bpy)3 2+ -doped silica nanoparticles ECL is desirable. Here, a new scheme for this purpose was developed based on electrochemically depositing a nanoscale chitosan hydrogel layer on the carbon nanotube (CNT) surface to form chitosan hydrogel shell@CNT core nanocomposites. In this case, the nanoscale chitosan hydrogel layer only formed on the CNT surface due to the superior electrocatalytic effect of CNT on H+ reduction compared with the basic glass carbon electrode. Due to both the superhydrophilic properties and polyelectrolyte features of nanoscale chitosan hydrogel on the CNT surface, chemical affinity as well as the electric conductivity between Ru(bpy)3 2+ -doped silica nanoparticles and CNT were obviously enhanced, and then the ECL effectivity of Ru(bpy)3 2+ inside silica nanoparticles was improved. Furthermore, based on the discriminative interaction of these Ru(bpy)3 2+ -doped silica nanoparticles towards both the ssDNA probes and the ssDNA probe/miRNA complex, as well as the specific adsorption effect of these nanoparticles on the nanoscale chitosan shell@Nafion/CNT core-modified glass carbon electrode, a highly sensitive ECL method for miRNA determination was developed and successfully used to detect miRNA in human serum samples.
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Affiliation(s)
- Qiaoling Liu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Wenjia Bai
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Zhihui Guo
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Xingwang Zheng
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
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21
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Construction of an ultra-sensitive electrochemical sensor based on polyoxometalates decorated with CNTs and AuCo nanoparticles for the voltammetric simultaneous determination of dopamine and uric acid. Mikrochim Acta 2020; 187:483. [DOI: 10.1007/s00604-020-04446-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/08/2020] [Indexed: 02/03/2023]
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22
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Kim S, Shin H, Kang C. A Wired Laccase Oxygen Cathode with Carboxylated Single‐Walled Carbon Nanotubes Incorporated. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sujeong Kim
- Department of Chemistry, Research Institute of Physics and ChemistryJeonbuk National University Jeonju, Jeonbuk 561‐756 The Republic of Korea
| | - Hyosul Shin
- Department of Chemistry, Research Institute of Physics and ChemistryJeonbuk National University Jeonju, Jeonbuk 561‐756 The Republic of Korea
| | - Chan Kang
- Department of Chemistry, Research Institute of Physics and ChemistryJeonbuk National University Jeonju, Jeonbuk 561‐756 The Republic of Korea
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23
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Lanzalaco S, Molina BG. Polymers and Plastics Modified Electrodes for Biosensors: A Review. Molecules 2020; 25:E2446. [PMID: 32456314 PMCID: PMC7287907 DOI: 10.3390/molecules25102446] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 02/07/2023] Open
Abstract
Polymer materials offer several advantages as supports of biosensing platforms in terms of flexibility, weight, conformability, portability, cost, disposability and scope for integration. The present study reviews the field of electrochemical biosensors fabricated on modified plastics and polymers, focusing the attention, in the first part, on modified conducting polymers to improve sensitivity, selectivity, biocompatibility and mechanical properties, whereas the second part is dedicated to modified "environmentally friendly" polymers to improve the electrical properties. These ecofriendly polymers are divided into three main classes: bioplastics made from natural sources, biodegradable plastics made from traditional petrochemicals and eco/recycled plastics, which are made from recycled plastic materials rather than from raw petrochemicals. Finally, flexible and wearable lab-on-a-chip (LOC) biosensing devices, based on plastic supports, are also discussed. This review is timely due to the significant advances achieved over the last few years in the area of electrochemical biosensors based on modified polymers and aims to direct the readers to emerging trends in this field.
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Affiliation(s)
- Sonia Lanzalaco
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ d’Eduard Maristany, 10-14, Building I, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal Besòs (EEBE), C/ d’Eduard Maristany 10-14, Edifici IS, 08019 Barcelona, Spain
| | - Brenda G. Molina
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ d’Eduard Maristany, 10-14, Building I, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal Besòs (EEBE), C/ d’Eduard Maristany 10-14, Edifici IS, 08019 Barcelona, Spain
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24
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Stolarczyk K, Rogalski J, Bilewicz R. NAD(P)-dependent glucose dehydrogenase: Applications for biosensors, bioelectrodes, and biofuel cells. Bioelectrochemistry 2020; 135:107574. [PMID: 32498025 DOI: 10.1016/j.bioelechem.2020.107574] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 05/21/2020] [Accepted: 05/21/2020] [Indexed: 12/13/2022]
Abstract
This review discusses the physical and chemical properties of nicotinamide redox cofactor dependent glucose dehydrogenase (NAD(P) dependent GDH) and its extensive application in biosensors and bio-fuel cells. GDHs from different organisms show diverse biochemical properties (e.g., activity and stability) and preferences towards cofactors, such as nicotinamide adenine dinucleotide (NAD+) and nicotinamide adenine dinucleotide phosphate (NADP+). The (NAD(P)+) play important roles in biological electron transfer, however, there are some difficulties related to their application in devices that originate from their chemical properties and labile binding to the GDH enzyme. This review discusses the electrode modifications aimed at immobilising NAD+ or NADP+ cofactors and GDH at electrodes. Binding of the enzyme was achieved by appropriate protein engineering techniques, including polymerisation, hydrophobisation or hydrophilisation processes. Various enzyme-modified electrodes applied in biosensors, enzymatic fuel cells, and biobatteries are compared. Importantly, GDH can operate alone or as part of an enzymatic cascade, which often improves the functional parameters of the biofuel cell or simply allows use of cheaper fuels. Overall, this review explores how NAD(P)-dependent GDH has recently demonstrated high potential for use in various systems to generate electricity from biological sources for applications in implantable biomedical devices, wireless sensors, and portable electronic devices.
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Affiliation(s)
- Krzysztof Stolarczyk
- Faculty of Chemistry, University of Warsaw, Pasteura St. 1, 02-093 Warsaw, Poland
| | - Jerzy Rogalski
- Department of Biochemistry and Biotechnology, Maria Curie-Sklodowska University, Akademicka Str. 19, 20-031 Lublin, Poland
| | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw, Pasteura St. 1, 02-093 Warsaw, Poland.
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25
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Chen TW, Chinnapaiyan S, Chen SM, Ajmal Ali M, Elshikh MS, Hossam Mahmoud A. Facile synthesis of copper ferrite nanoparticles with chitosan composite for high-performance electrochemical sensor. ULTRASONICS SONOCHEMISTRY 2020; 63:104902. [PMID: 31951998 DOI: 10.1016/j.ultsonch.2019.104902] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 06/10/2023]
Abstract
Herein, the synthesis of copper ferrite nanoparticles (CuFe2O4 NPs)/chitosan have been prepared by sonochemical route under ultrasonic irradiation bath at 40 kHz and 50 W. A high sensitive and stable modified electrochemical sensor was developed using a composition of copper ferrite nanoparticles coordinated with biopolymer through a facile ultrasound approach. Besides, power and frequency parameters are highly important for sonochemical synthesis and specifically structure, and size of the nanomaterials development during the ultrasonic irradiation time. In this work, ultrasonic bath was used to synthesis of CuFe2O4 nanomaterial at 40 kHz with 1 h. CuFe2O4/chitosan was characterized by FESEM, EDX, XRD and electrochemical methods. Furthermore, 8-hydroxyguanine is one of biomarker by oxidative stress. The concentrations of 8-hydroxyguanine within a cell are a measurement of oxidative stress in human body. Consequently, the measurement of 8-hydroxyguanine in blood serum samples with high specificity is of greatest importance. The CuFe2O4/chitosan modified electrode is displayed a low detection limit of 8.6 nM and long linear range (0.025-697.175 µM).
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Affiliation(s)
- Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC; Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, Taiwan, ROC
| | - Sathishkumar Chinnapaiyan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
| | - M Ajmal Ali
- Department of Botany and Microbiology, College of Sciences, King Saud University P.O. Box. 2455, Riyadh 11451, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Sciences, King Saud University P.O. Box. 2455, Riyadh 11451, Saudi Arabia
| | - Ahmed Hossam Mahmoud
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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26
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Fang D, Gao G, Yang Y, Wang Y, Gao L, Zhi J. Redox Mediator‐Based Microbial Biosensors for Acute Water Toxicity Assessment: A Critical Review. ChemElectroChem 2020. [DOI: 10.1002/celc.202000367] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Deyu Fang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 PR China
- Current address: Ningde Amperex Technology Limited (ATL) Ningde 352100 PR China
| | - Guanyue Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Yajie Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Yu Wang
- Beijing Center for Physical and Chemical Analysis Beijing 100089 PR China
| | - Lijuan Gao
- Beijing Center for Physical and Chemical Analysis Beijing 100089 PR China
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
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27
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Graphene Oxide Nanoribbons in Chitosan for Simultaneous Electrochemical Detection of Guanine, Adenine, Thymine and Cytosine. BIOSENSORS-BASEL 2020; 10:bios10040030. [PMID: 32230779 PMCID: PMC7236021 DOI: 10.3390/bios10040030] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 12/19/2022]
Abstract
Herein, graphene oxide nanoribbons (GONRs) were obtained from the oxidative unzipping of multi-walled carbon nanotubes. Covalent coupling reaction of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) and N-hydroxy succinimide (NHS) with amine functional groups (-NH2) of the chitosan natural polymer (CH) was used for entrapping GONRs on the activated glassy carbon electrode (GCE/GONRs-CH). The nanocomposite was characterized by high-resolution transmission electron microscopy (HRTEM), and field-emission scanning electron microscopy (FESEM). In addition, the modification steps were monitored using FTIR. The nanocomposite-modified electrode was used for the simultaneous electrochemical determination of four DNA bases; guanine (G), adenine (A), thymine (T) and cytosine (C). The nanocomposite-modified GCE displayed a strong, stable and continuous four oxidation peaks during electrochemistry detection at potentials 0.63, 0.89, 1.13 and 1.27 V for G, A, T and C, respectively. The calibration curves were linear up to 256, 172, 855 and 342 μM with detection limits of 0.002, 0.023, 1.330 and 0.641 μM for G, A, T and C, respectively. The analytical performance of the GCE/GONRs-CH has been used for the determination of G, A, T and C in real samples and obtained a recovery percentage from 91.1%-104.7%. Our preliminary results demonstrated that GCE/GONRs-CH provided a promising platform to detect all four DNA bases for future studies on DNA damage and mutations.
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Jalalvand AR, Zangeneh MM, Jalili F, Soleimani S, Díaz-Cruz JM. An elegant technology for ultrasensitive impedimetric and voltammetric determination of cholestanol based on a novel molecularly imprinted electrochemical sensor. Chem Phys Lipids 2020; 229:104895. [PMID: 32165169 DOI: 10.1016/j.chemphyslip.2020.104895] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/25/2020] [Accepted: 03/06/2020] [Indexed: 12/26/2022]
Abstract
In this work, a novel molecularly imprinted electrochemical sensor (MIES) has been fabricated based on electropolymerization of a molecularly imprinted polymer (MIP) onto a glassy carbon electrode (GCE) modified with gold-palladium alloy nanoparticles (AuPd NPs)/polydopamine film (PDA)/multiwalled carbon nanotubes-chitosan-ionic liquid (MWCNTs-CS-IL) for voltammetric and impedimetric determination of cholestanol (CHO). Modifications applied to the bare GCE formed an excellent biocompatible composite film which was able to selectively detect CHO molecules. Modifications applied to the bare GCE were characterized by scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (SEM). Under optimal experimental conditions, the sensor was able to detect CHO in the range of 0.1-60 pM and 1-50 pM by EIS and DPV, respectively. Moreover, the sensor showed high sensitivity, selectivity, repeatability, reproducibility, low interference and good stability towards CHO determination. Our records confirmed that the sensor was successfully able to the analysis real samples for determination of CHO.
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Affiliation(s)
- Ali R Jalalvand
- Research Center of Oils and Fats, Research Institute for Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran; Biotechnology and Medicinal Plants Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Faramarz Jalili
- Research Center of Oils and Fats, Research Institute for Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shokoufeh Soleimani
- Research Center of Oils and Fats, Research Institute for Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Jose Manuel Díaz-Cruz
- Departament d'Enginyeria Química i Química Analítica, Facultat de Química, Universitat de Barcelona, Martí i Franques 1-11, E-8028 Barcelona, Spain
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Sato K, Konno T. Carbon Nanotube Immobilized Electrode Using Amphiphilic Phospholipid Polymer with Anti‐fouling and Dispersion Property for Electrochemical Analysis. ELECTROANAL 2020. [DOI: 10.1002/elan.201900549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Katsuhiko Sato
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Tomohiro Konno
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
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Edge Functionalized Graphene Layers for (Ultra) High Exfoliation in Carbon Papers and Aerogels in the Presence of Chitosan. MATERIALS 2019; 13:ma13010039. [PMID: 31861780 PMCID: PMC6981762 DOI: 10.3390/ma13010039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/04/2019] [Accepted: 12/12/2019] [Indexed: 12/03/2022]
Abstract
Ultra-high exfoliation in water of a nanosized graphite (HSAG) was obtained thanks to the synergy between a graphene layer edge functionalized with hydroxy groups and a polymer such as chitosan (CS). The edge functionalization of graphene layers was performed with a serinol derivative containing a pyrrole ring, serinol pyrrole (SP). The adduct between CS and HSAG functionalized with SP was formed simply with a mortar and pestle, then preparing water dispersions stable for months in the presence of acetic acid. Simple casting of such dispersions on a glass support led to carbon papers. Aerogels were prepared through the freeze-dry procedure. Exfoliation was observed in both these families of composites and ultra-high exfoliation was documented in aerogels swollen in water. Carbon papers and aerogels were stable for months in solvents in a wide range of solubility parameter and in a pretty wide range of pH. By considering that a moderately functionalized nanographite was straightforwardly exfoliated in water in the presence of one of the most abundant biobased polymers, the obtained results pave the way for the simple and sustainable preparation of graphene-based nanocomposites. HSAG–SP/CS adducts were characterized by wide angle X-ray diffraction (WAXD), scanning and transmission electron microscopy (SEM, TEM and HRTEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Thermal stability of the composites was studied by thermogravimetric analysis (TGA) and their direct electrical conductivity with the four-point probe method.
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31
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Tian T, Liu M, Chen L, Zhang F, Yao X, Zhao H, Li X. D-amino acid electrochemical biosensor based on D-amino acid oxidase: Mechanism and high performance against enantiomer interference. Biosens Bioelectron 2019; 151:111971. [PMID: 31868610 DOI: 10.1016/j.bios.2019.111971] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 01/20/2023]
Abstract
For D-amino acid (DAA) electrochemical biosensors, it is necessary to achieve chiral recognition in racemic solutions or mixtures. However, common chiral recognition is only performed in a single isomer solution. Here, D-amino acid oxidase (DAAO) was used as a chiral selector, and carbon nanotubes (CNTs) as a signal amplifier to construct a non-mediator-style DAA biosensor. The biosensor showed high performance against enantiomer interference: in alanine (Ala) enantiomer mixtures, accurate quantification of D-Ala was achieved when the concentration ratio of L-Ala to D-Ala was 100. In Ala racemic solutions, the linear equation slope was almost consistent with that of standard D-Ala. This high performance was due to the combination of stereoselectivity (enzyme protein) and a catalytic reaction (redox center). The mechanism for the electrical signal change of the biosensor was explored and verified by cyclic voltammetry (CV). The results showed that (i) flavin adenine dinucleotide (FAD, redox center of DAAO) was a direct electroactive substance that produced a reduction peak current; in the presence of O2, the amount of FAD increased leading to an increase of the reduction peak current. (ii) In the presence of DAA, the chemical reaction FAD+DAA → imino acids+ FADH2 occurred and consumed FAD, which resulted in its decrease; thus, the reduction peak current also decreased. Under the same oxygen concentration, the linear decrease of the reduction peak current in the presence of DAA was due to FAD consumption. The biosensor was used for practical analyses in milk and urine samples with satisfactory results.
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Affiliation(s)
- Tingting Tian
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingxia Liu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lixia Chen
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fengjiao Zhang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xin Yao
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong Zhao
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiangjun Li
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Ghanbari K, Roshani M, Goicoechea HC, Jalalvand AR. Developing an elegant and integrated electrochemical-theoretical approach for detection of DNA damage induced by 4-nonylphenol. Heliyon 2019; 5:e02755. [PMID: 31720481 PMCID: PMC6839279 DOI: 10.1016/j.heliyon.2019.e02755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/03/2019] [Accepted: 10/28/2019] [Indexed: 12/18/2022] Open
Abstract
In this work, a novel biosensor was fabricated for detection of DNA damage induced by 4-nonylphenol (NP) and also determination of NP. To achieve this goal, a glassy carbon electrode (GCE) was modified with chitosan (Chit), gold nanoparticles (Au NPs) and DNA-multiwalled carbon nanotubes (DNA-MWCNTs). Then, the DNA-MWCNTs/Au NPs/Chit/GCE was incubated with methylene blue (MB) to obtain MB-DNA-MWCNTs/Au NPs/Chit/GCE in which MB was used as the redox indicator. The modifications applied to the GCE were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopic (EDS) and theoretical evidence. MB is a derivative of anthraquinone which can intercalate into double helix structure of DNA. By treating MB-DNA-MWCNTs/Au NPs/Chit/GCE with NP, a higher R ct was observed because the insertion of the NP may result in a more negative charge environment on the DNA surface which hinders accessibility of [Fe(CN)6]3-/4- anion to the electrode surface. Change in the EIS response of the biosensor in the presence of NP was used to develop a novel system for monitoring the DNA damage induced by NP. The EIS technique was also used to develop a sensitive electroanalytical method for determination of NP.
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Affiliation(s)
| | - Mahmoud Roshani
- Department of Chemistry, Ilam University, Ilam, Iran
- Corresponding author.
| | - Hector C. Goicoechea
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), C_atedra de Química Analítica I, Universidad Nacional del Litoral, Ciudad Universitaria, CC 242 (S3000ZAA), Santa Fe, Argentina
| | - Ali R. Jalalvand
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Corresponding author.
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Zhong H, Yu C, Gao R, Chen J, Yu Y, Geng Y, Wen Y, He J. A novel sandwich aptasensor for detecting T-2 toxin based on rGO-TEPA-Au@Pt nanorods with a dual signal amplification strategy. Biosens Bioelectron 2019; 144:111635. [PMID: 31513958 DOI: 10.1016/j.bios.2019.111635] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 08/08/2019] [Accepted: 08/25/2019] [Indexed: 11/19/2022]
Abstract
T-2 toxin is a mycotoxin that can cause chronic illnesses, and the detection of T-2 toxin in food is critical for human health. Herein, a novel sandwich aptasensor with a dual signal amplification strategy was developed for the detection of T-2 toxin. Molybdenum disulfide-polyaniline-chitosan-gold nanoparticles (MoS2-PANI-Chi-Au) were processed to the modified glassy carbon electrode (GCE) and used as the aptasensor platform to expedite the electronics transport and immobilize the amino-terminated capture DNA probe by Au-N bonds. The reduced graphene oxide-tetraethylene pentamine-gold@platinum nanorods (rGO-TEPA-Au@Pt NRs) were first synthesized and immobilized with a signal DNA probe. Once T-2 toxin was added into the biosensing system, the aptamer would trap T-2 toxin to turn the signal off. Next, dissociative aptamer hybridized with the capture DNA probe in GCE and linked simultaneously to the signal DNA probe on rGO-TEPA-Au@Pt NRs with another end sequence of aptamer to turn the signal on. Owing to the efficient catalytic ability of bimetallic Au@Pt nanorods, the signal was perfectly amplified through the catalysis of hydrogen peroxide (H2O2) and recorded by chronoamperometry. With the outstanding augment response, the limit of detection reached 1.79 fg mL-1 (3SB/m) and a wide linear range from 10 fg mL-1 to 100 ng mL-1 was presented. The sensitivity of the aptasensor was 19.88 μA⋅μM-1⋅cm-2. Meanwhile, the DNA aptamer-bimetallic nanorod based sensing system presented excellent specificity. The developed aptasensor provides a new platform for T-2 toxin detection with low cost for real sample assays.
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Affiliation(s)
- Hangtian Zhong
- School of Public Health and Management, Chongqing Medical University, Chongqing , China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Rufei Gao
- School of Public Health and Management, Chongqing Medical University, Chongqing , China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Jun Chen
- College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Yujie Yu
- School of Public Health and Management, Chongqing Medical University, Chongqing , China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yanqing Geng
- School of Public Health and Management, Chongqing Medical University, Chongqing , China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yilin Wen
- College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Junlin He
- School of Public Health and Management, Chongqing Medical University, Chongqing , China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China.
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Ozturk K, Bakirhan NK, Ozkan SA, Uslu B. Effect of Catalytically Active Zinc Oxide−Carbon Nanotube Composite on Sensitive Assay of Desloratadine Metabolite. ELECTROANAL 2019. [DOI: 10.1002/elan.201900193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kubra Ozturk
- Department of Analytical Chemistry, Faculty of PharmacyAnkara University Turkey
| | - Nurgul K. Bakirhan
- Department of Chemistry, Faculty of Arts & SciencesHitit University Turkey
| | - Sibel A. Ozkan
- Department of Analytical Chemistry, Faculty of PharmacyAnkara University Turkey
| | - Bengi Uslu
- Department of Analytical Chemistry, Faculty of PharmacyAnkara University Turkey
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35
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Li X, Kan X. A boronic acid carbon nanodots/poly(thionine) sensing platform for the accurate and reliable detection of NADH. Bioelectrochemistry 2019; 130:107344. [PMID: 31404808 DOI: 10.1016/j.bioelechem.2019.107344] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/01/2019] [Accepted: 08/01/2019] [Indexed: 12/27/2022]
Abstract
In this work, a novel electrochemical sensing platform was designed and fabricated by the modification of boronic acid functionalized carbon nanodots (B-CNDs) and poly(thionine) (pTHI) on an electrode surface. B-CNDs can not only accelerate electron transfer but also covalently interact with cis-diol groups of dihydronicotinamide adenine dinucleotide (NADH) through functionalized boronic acid groups. Meanwhile, pTHI served as an inner reference element to provide a built-in correction, which enabled the sensor to detect NADH with high accuracy and reliability based on a ratiometric signal (∆INADH/∆ITHI). The electrochemical experimental results demonstrated that the ratiometric strategy-based sensor possessed good selectivity and high sensitivity. A linear range of 5.0 × 10-7 - 2.0 × 10-4 mol/L for NADH detection was obtained with a limit of detection of 1.5 × 10-7 mol/L. The sensor has been applied to analyze NADH in human serum samples with satisfactory results. The simple and effective ratiometric strategy reported here can be further used to prepare electrochemical sensors for selective, sensitive, and reliable detection of other cis-diol compounds.
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Affiliation(s)
- Xueyan Li
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China; The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, PR China
| | - Xianwen Kan
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China; The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, PR China.
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36
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AL-Hashimi NN, El-Sheikh AH, Qawariq RF, Shtaiwi MH, AlEjielat R. Multi-walled Carbon Nanotubes Reinforced into Hollow Fiber by Chitosan Sol-gel for Solid/Liquid Phase Microextraction of NSAIDs from Urine Prior to HPLC-DAD Analysis. Curr Pharm Biotechnol 2019; 20:390-400. [DOI: 10.2174/1389201020666190405181234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/04/2019] [Accepted: 03/31/2019] [Indexed: 12/11/2022]
Abstract
Background:
The efficient analytical method for the analysis of nonsteroidal antiinflammatory
drugs (NSAIDs) in a biological fluid is important for determining the toxicological aspects
of such long-term used therapies.
Methods:
In the present work, multi-walled carbon nanotubes reinforced into a hollow fiber by chitosan
sol-gel assisted-solid/ liquid phase microextraction (MWCNTs-HF-CA-SPME) method followed
by the high-performance liquid chromatography-diode array detection (HPLC–DAD) was developed
for the determination of three NSAIDs, ketoprofen, diclofenac, and ibuprofen in human urine samples.
MWCNTs with various dimensions were characterized by various analytical techniques. The extraction
device was prepared by immobilizing the MWCNTs in the pores of 2.5 cm microtube via chitosan
sol-gel assisted technology while the lumen of the microtube was filled with few microliters of
1-octanol with two ends sealed. The extraction device was operated by direct immersion in the sample
solution.
Results:
The main factors influencing the extraction efficiency of the selected NSAIDs have been examined.
The method showed good linearity R2 ≥ 0.997 with RSDs from 1.1 to 12.3%. The limits of detection
(LODs) were 2.633, 2.035 and 2.386 µg L-1, for ketoprofen, diclofenac, and ibuprofen, respectively.
The developed method demonstrated a satisfactory result for the determination of selected drugs
in patient urine samples and comparable results against reference methods.
Conclusion:
The method is simple, sensitive and can be considered as an alternative for clinical laboratory
analysis of selected drugs.
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Affiliation(s)
- Nabil N. AL-Hashimi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, The Hashemite University, P.O. Box 330127, Al-Zarqa 13133, Jordan
| | - Amjad H. El-Sheikh
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 150459, Al-Zarqa 13115, Jordan
| | - Rania F. Qawariq
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 150459, Al-Zarqa 13115, Jordan
| | - Majed H. Shtaiwi
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 150459, Al-Zarqa 13115, Jordan
| | - Rowan AlEjielat
- Department of Pharmacy, Faculty of Health Science, American University of Madaba, P.O. Box 2882, Amman, Jordan
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Liu R, Wang Y, Du N, Jiang D, Ge Q, Wu M, Yu H, Xu B. An electricalchemical method to detect the branch-chain aminotransferases activity in lactic acid bacteria. Food Chem 2019; 297:125035. [PMID: 31253330 DOI: 10.1016/j.foodchem.2019.125035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 05/08/2019] [Accepted: 06/16/2019] [Indexed: 11/30/2022]
Abstract
In this study, an electrochemical system was established to detect the branched-chain amino acid aminotransferase (BCAT) activity in lactic acid bacteria (LAB). A nanocomposite of chitosan (CS) with multi-walled carbon nanotubes (MWCNTs) was synthesized, and the composite solution were uniformly spread over the glassy carbon electrode (GCE) surface by drop-casting to fabricate an electrochemical biosensor. The composite was characterized by scanning electron microscopy (SEM) and cyclic voltammetry (TEM). Results indicated that the MWCNTs-CS/GCE electrode exhibited higher stability and sensitivity, compared with the GCE electrode. The linear response for nicotinamide adenine dinucleotide (NADH) was 1.0-9.0 μM and the response limit was 0.12 µM. The system effectively and sensitively detected the BCAT activity by NADH concentration in the LAB culture, comparing with the optical method. The culture condition of LAB was optimized by using this system, evidencing that established method was available to detect the BCAT activity of LAB.
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Affiliation(s)
- Rui Liu
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China
| | - Yanqing Wang
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China
| | - Nan Du
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China
| | - Donglei Jiang
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China
| | - Qingfeng Ge
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China
| | - Mangang Wu
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China
| | - Hai Yu
- School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, PR China.
| | - Baocai Xu
- State Key Laboratory for Meat Quality and Safety Control, Nanjing, Jiangsu 210000, PR China.
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38
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Nitrogen-doped graphene quantum dots coated with gold nanoparticles for electrochemiluminescent glucose detection using enzymatically generated hydrogen peroxide as a quencher. Mikrochim Acta 2019; 186:276. [PMID: 30969371 DOI: 10.1007/s00604-019-3397-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 03/29/2019] [Indexed: 10/27/2022]
Abstract
Nitrogen-doped graphene quantum dots (N-GQDs) were prepared from dicyandiamide and then used as both an electrochemiluminescence (ECL) emitter and a reductant to produce gold nanoparticles (Au-N-GQDs) on their surface without using any reagent. In order to avoid resonance energy transfer, the Au-N-GQDs were stabilized with chitosan. Transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), UV-vis spectroscopy (UV-vis) and ECL methods were used to characterize the nanocomposite. The materials was placed on a glassy carbon electrode (GCE), and the ECL signals are found to be strongly quenched by hydrogen peroxide that is enzymatically produced by oxidation of glucose. With the applied typical potential of -1.7 V, the ECL of the Au-N-GQDs modified GCE decreases linearly in the 10 nM to 5.0 μM glucose concentration range, and the lower detection limit is 3.3 nM. The influence of H2O2 to the signal has been discussed and a possible mechanism has been presented. Graphical abstract Schematic presentation of the reduction of gold nanoparticles with nitrogen-droped graphene quantum dots (N-GQDs) to form Au-N-GQDs. They were used to detect glucose by electrochemiluminescence through a signal off strategy.
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39
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Choi YB, Kim HS, Jeon WY, Lee BH, Shin US, Kim HH. The electrochemical glucose sensing based on the chitosan-carbon nanotube hybrid. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.10.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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40
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Satyanarayana M, Goud KY, Reddy KK, Kumar VS, Gobi KV. Silver nanoparticles impregnated chitosan layered carbon nanotube as sensor interface for electrochemical detection of clopidogrel in-vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:103-110. [PMID: 31029303 DOI: 10.1016/j.msec.2019.03.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/21/2019] [Accepted: 03/23/2019] [Indexed: 10/27/2022]
Abstract
Continuous periodical monitoring of clopidogrel in physiological body fluids is indispensable in medical diagnosis of heart ailments and cardiovascular diseases. A highly sensitive electrochemical sensor has been fabricated with silver nanoparticles embedded chitosan-carbon nanotube hybrid composite (AgChit-CNT) as sensor interface for detection of the important anti-platelet drug, clopidogrel (CLP). Synthesized AgChit-CNT nanocomposite is examined by x-ray diffraction, Raman spectroscopy and field emission scanning electron microscopy for its chemical and structural characteristics. Crystalline silver nanoparticles of about 35 nm are well distributed in the composite and have formed continuous chain like linkages with CNTs all throughout. Electrochemical responses of the fabricated AgChit-CNT nanocomposite electrode for the determination of CLP have been examined by cyclic voltammetry and electrochemical impedance spectroscopy. The nanoAg patterned CNT nanocomposite interface acts as an excellent electron transfer mediator towards the oxidation of clopidogrel. Electrochemical determination of CLP was investigated by differential pulse voltammetry (DPV) and amperometric analysis under optimized conditions. The limit of detection by DPV and amperometry were 30 nM and 10 nM, respectively, and the time of the analysis is as low as 10 s. Practical applicability for determination in artificially prepared urine and pharmaceutical formulation has been examined with good recovery limits of 95.2 to 102.6%.
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Affiliation(s)
- M Satyanarayana
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
| | - K Yugender Goud
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
| | - K Koteshwara Reddy
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
| | - V Sunil Kumar
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
| | - K Vengatajalabathy Gobi
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India.
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41
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Kausar A. Polymer and modified chitosan-based nanocomposite: impending material for technical application. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1587771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ayesha Kausar
- School of natural sciences, National University of Sciences and Technology, Islamabad, Pakistan
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42
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Electrochemical Glucose Quantification as a Strategy for Ethanolic Fermentation Monitoring. CHEMOSENSORS 2019. [DOI: 10.3390/chemosensors7010014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The possibility of using an electrochemical biosensor, using screen-printed electrodes modified with a carbonaceous material and a commercial kit for the determination of glucose, to monitor an ethanolic fermentation was analyzed. The determination is based on the electrochemical oxidation reaction of NADH that occurs at a potential where the components of the kit do not generate a current signal, even in the presence of the fermentation medium. The electrochemical system was used to analyze the variation of glucose concentration during a laboratory-scale fermentation. The results were contrasted with the variation of standard characterization parameters such as pH, total soluble solids (TSS), the viability of the yeast, and concentration of ethanol produced. Of these values, the total soluble solids should be related to the concentration of glucose obtained by the electrochemical sensor, however, this last measure is more specific for sugar since the TSS refers to all soluble solids. The obtained results allow us to verify the usefulness of the electrochemical method for real-time monitoring of a fermentation.
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Cohen E, Merzendorfer H. Chitin/Chitosan: Versatile Ecological, Industrial, and Biomedical Applications. EXTRACELLULAR SUGAR-BASED BIOPOLYMERS MATRICES 2019; 12. [PMCID: PMC7115017 DOI: 10.1007/978-3-030-12919-4_14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chitin is a linear polysaccharide of N-acetylglucosamine, which is highly abundant in nature and mainly produced by marine crustaceans. Chitosan is obtained by hydrolytic deacetylation. Both polysaccharides are renewable resources, simply and cost-effectively extracted from waste material of fish industry, mainly crab and shrimp shells. Research over the past five decades has revealed that chitosan, in particular, possesses unique and useful characteristics such as chemical versatility, polyelectrolyte properties, gel- and film-forming ability, high adsorption capacity, antimicrobial and antioxidative properties, low toxicity, and biocompatibility and biodegradability features. A plethora of chemical chitosan derivatives have been synthesized yielding improved materials with suggested or effective applications in water treatment, biosensor engineering, agriculture, food processing and storage, textile additives, cosmetics fabrication, and in veterinary and human medicine. The number of studies in this research field has exploded particularly during the last two decades. Here, we review recent advances in utilizing chitosan and chitosan derivatives in different technical, agricultural, and biomedical fields.
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Affiliation(s)
- Ephraim Cohen
- Department of Entomology, The Robert H. Smith Faculty of Agriculture Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Hans Merzendorfer
- School of Science and Technology, Institute of Biology – Molecular Biology, University of Siegen, Siegen, Germany
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44
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A novel non-enzymatic zinc oxide thin film based electrochemical recyclable strip with device interface for quantitative detection of catechol in water. Biosens Bioelectron 2019; 128:32-36. [PMID: 30616215 DOI: 10.1016/j.bios.2018.12.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/07/2018] [Accepted: 12/22/2018] [Indexed: 10/27/2022]
Abstract
Catechol, one of the major effluents released by various chemical and metal processing industries, causes severe pollution of groundwater. Monitoring of catechol in water using cost-effective, handheld sensor is demanding for the safety of the environment. In this work, non-enzymatic zinc oxide thin film based electrochemical strip sensor is developed on conducting glass substrate for detection of catechol. The preparation of strip without employing standard Pt or Ag/AgCl electrodes and simply depositing ZnO through wet chemical process represents a cost-effective innovative technique. The ZnO thin film is characterized using field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDS), atomic force microscopy (AFM) and grazing incidence X-ray diffractometer (GIXRD). Catechol is electrochemically detected by means of cyclic voltammetry and amperometry. A prominent redox peak of the developed strip attributed to the detection of catechol is observed at -0.26 V in cyclic voltammetry. The strip is integrated with readout meter and an algorithm is built based on the experimentally observed linear variation of amperometric current with catechol concentration. The quantitative detection performance is demonstrated by testing 0.1-12 ppm catechol solutions.
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A dual-signal readout enzyme-free immunosensor based on hybridization chain reaction-assisted formation of copper nanoparticles for the detection of microcystin-LR. Biosens Bioelectron 2019; 126:151-159. [DOI: 10.1016/j.bios.2018.10.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 10/16/2018] [Indexed: 12/11/2022]
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Ilic IK, Meurer M, Chaleawlert-umpon S, Antonietti M, Liedel C. Vanillin decorated chitosan as electrode material for sustainable energy storage. RSC Adv 2019; 9:4591-4598. [PMID: 35520200 PMCID: PMC9060616 DOI: 10.1039/c9ra00140a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 01/30/2019] [Indexed: 11/26/2022] Open
Abstract
Energy storage materials made from bioresources are crucial to fulfil the need for truly sustainable energy storage. In this work, vanillin, being a lignin-derived molecule, is coupled to chitosan, a biobased polymer backbone, and used as a redox active electrode material. The structure of those electrodes is highly defined, leading to better product security than in lignin based electrodes, which have been presented as sustainable electrodes in the past. With over 60% of saccharide units in chitosan functionalised by vanillin, the concentration of redox functionalities in the copolymer is significantly higher than in lignin materials. Composites with carbon black require no further binders or additives to be used as electrode material and show reversible charge storage up to 80 mA h g−1 (respective to the total electrode material) and good stability. Consequently, these electrodes are amongst the best performing electrodes made from regrown organic matter. To replace dangerous and rare components in battery electrodes, more sustainable energy storage materials made from biowaste and wood-based vanillin are presented.![]()
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Affiliation(s)
- Ivan K. Ilic
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- Research Campus Golm
- 14476 Potsdam
- Germany
| | - Maren Meurer
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- Research Campus Golm
- 14476 Potsdam
- Germany
| | - Saowaluk Chaleawlert-umpon
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- Research Campus Golm
- 14476 Potsdam
- Germany
| | - Markus Antonietti
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- Research Campus Golm
- 14476 Potsdam
- Germany
| | - Clemens Liedel
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- Research Campus Golm
- 14476 Potsdam
- Germany
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Kaur N, Bharti A, Batra S, Rana S, Rana S, Bhalla A, Prabhakar N. An electrochemical aptasensor based on graphene doped chitosan nanocomposites for determination of Ochratoxin A. Microchem J 2019. [DOI: 10.1016/j.microc.2018.08.064] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Merzendorfer H. Chitosan Derivatives and Grafted Adjuncts with Unique Properties. BIOLOGICALLY-INSPIRED SYSTEMS 2019. [DOI: 10.1007/978-3-030-12919-4_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kim HS, Joo SR, Shin US, Kim SH. Recyclable CNT-chitosan nanohybrid film utilized in copper-catalyzed aerobic ipso-hydroxylation of arylboronic acids in aqueous media. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chen T, Xu Y, Wei S, Li A, Huang L, Liu J. A signal amplification system constructed by bi-enzymes and bi-nanospheres for sensitive detection of norepinephrine and miRNA. Biosens Bioelectron 2018; 124-125:224-232. [PMID: 30388565 DOI: 10.1016/j.bios.2018.10.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/11/2018] [Accepted: 10/15/2018] [Indexed: 12/29/2022]
Abstract
Achieving the enhanced sensitivity and stability is always the pursuit for the fabrication of enzymatic biosensors. However, their sensitivity was still restricted by the fluctuant detection target (e.g. concentration), complex detection environment and limited recognition capability of enzymes. Herein, an effective and facile approach was designed to construct a bi-enzymatic and bi-nanospherical signal amplification system for fabrication of biosensors based on the designed polydopamine(PDA)-laccase@Au-glucose dehydrogenase. Therein, laccase-catalytic polymerized PDA nanoparticles (NPs) provided the supporting matrix for immobilization of laccase and AuNPs. The AuNPs with good conductivity and large surface area were used not only as a platform for enhanced loading capacity of glucose dehydrogenase but also as a conducting medium for electron transfer acceleration between enzymes and electrode. Moreover, the coordinated catalysis of bi-enzymes (laccase and glucose dehydrogenase) could avoid the fluctuated concentration of detection target (e.g. norepinephrine), while the application of bi-nanospheres loaded with large amount of enzymes could effectively amplify the signal of biosensors. Taking advantages of these merits, the as-prepared biosensors showed preeminent reproducibility, larger detection range from 0.5 nM to 0.5 μM, and lower detection limit of 0.07 nM (S/N = 3) for the norepinephrine detection. Besides, the constructed PDA-laccase@Au-glucose dehydrogenase was also successfully applied as the sensing probes for the detection of microRNA (miRNA), especially for single-nucleotide mismatched miRNA via specific recognition.
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Affiliation(s)
- Tao Chen
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Collaborative Innovation Centre for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Yuanhong Xu
- College of Life Sciences, Qingdao University, Qingdao 266071, China.
| | - Shuang Wei
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Collaborative Innovation Centre for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Aihua Li
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Collaborative Innovation Centre for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Lei Huang
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Collaborative Innovation Centre for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, China; College of Life Sciences, Qingdao University, Qingdao 266071, China.
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