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C S S, Kini V, Singh M, Mukhopadhyay C, Nag P, Sadani K. Disposable electrochemical biosensors for the detection of bacteria in the light of antimicrobial resistance. Biotechnol Bioeng 2024. [PMID: 38822742 DOI: 10.1002/bit.28735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/30/2024] [Accepted: 04/24/2024] [Indexed: 06/03/2024]
Abstract
Persistent and inappropriate use of antibiotics is causing rife antimicrobial resistance (AMR) worldwide. Common bacterial infections are thus becoming increasingly difficult to treat without the use of last resort antibiotics. This has necessitated a situation where it is imperative to confirm the infection to be bacterial, before treating it with antimicrobial speculatively. Conventional methods of bacteria detection are either culture based which take anywhere between 24 and 96 hor require sophisticated molecular analysis equipment with libraries and trained operators. These are difficult propositions for resource limited community healthcare setups of developing or less developed countries. Customized, inexpensive, point-of-care (PoC) biosensors are thus being researched and developed for rapid detection of bacterial pathogens. The development and optimization of disposable sensor substrates is the first and crucial step in development of such PoC systems. The substrates should facilitate easy charge transfer, a high surface to volume ratio, be tailorable by the various bio-conjugation chemistries, preserve the integrity of the biorecognition element, yet be inexpensive. Such sensor substrates thus need to be thoroughly investigated. Further, if such systems were made disposable, they would attain immunity to biofouling. This article discusses a few potential disposable electrochemical sensor substrates deployed for detection of bacteria for environmental and healthcare applications. The technologies have significant potential in helping reduce bacterial infections and checking AMR. This could help save lives of people succumbing to bacterial infections, as well as improve the overall quality of lives of people in low- and middle-income countries.
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Affiliation(s)
- Sreelakshmi C S
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vrinda Kini
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Maargavi Singh
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Chiranjay Mukhopadhyay
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Pooja Nag
- Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kapil Sadani
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Zhao X, Bhat A, O’Connor C, Curtin J, Singh B, Tian F. Review of Detection Limits for Various Techniques for Bacterial Detection in Food Samples. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:855. [PMID: 38786811 PMCID: PMC11124167 DOI: 10.3390/nano14100855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/07/2024] [Accepted: 05/12/2024] [Indexed: 05/25/2024]
Abstract
Foodborne illnesses can be infectious and dangerous, and most of them are caused by bacteria. Some common food-related bacteria species exist widely in nature and pose a serious threat to both humans and animals; they can cause poisoning, diseases, disabilities and even death. Rapid, reliable and cost-effective methods for bacterial detection are of paramount importance in food safety and environmental monitoring. Polymerase chain reaction (PCR), lateral flow immunochromatographic assay (LFIA) and electrochemical methods have been widely used in food safety and environmental monitoring. In this paper, the recent developments (2013-2023) covering PCR, LFIA and electrochemical methods for various bacterial species (Salmonella, Listeria, Campylobacter, Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli)), considering different food sample types, analytical performances and the reported limit of detection (LOD), are discussed. It was found that the bacteria species and food sample type contributed significantly to the analytical performance and LOD. Detection via LFIA has a higher average LOD (24 CFU/mL) than detection via electrochemical methods (12 CFU/mL) and PCR (6 CFU/mL). Salmonella and E. coli in the Pseudomonadota domain usually have low LODs. LODs are usually lower for detection in fish and eggs. Gold and iron nanoparticles were the most studied in the reported articles for LFIA, and average LODs were 26 CFU/mL and 12 CFU/mL, respectively. The electrochemical method revealed that the average LOD was highest for cyclic voltammetry (CV) at 18 CFU/mL, followed by electrochemical impedance spectroscopy (EIS) at 12 CFU/mL and differential pulse voltammetry (DPV) at 8 CFU/mL. LOD usually decreases when the sample number increases until it remains unchanged. Exponential relations (R2 > 0.95) between LODs of Listeria in milk via LFIA and via the electrochemical method with sample numbers have been obtained. Finally, the review discusses challenges and future perspectives (including the role of nanomaterials/advanced materials) to improve analytical performance for bacterial detection.
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Affiliation(s)
- Xinyi Zhao
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, D07 ADY7 Dublin, Ireland; (X.Z.); (A.B.); (C.O.); (B.S.)
- FOCAS Research Institute, Technological University Dublin, Camden Row, D08 CKP1 Dublin, Ireland
| | - Abhijnan Bhat
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, D07 ADY7 Dublin, Ireland; (X.Z.); (A.B.); (C.O.); (B.S.)
- MiCRA Biodiagnostics Technology Gateway and Health, Engineering & Materials Sciences (HEMS) Research Hub, Technological University Dublin, D24 FKT9 Dublin, Ireland
| | - Christine O’Connor
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, D07 ADY7 Dublin, Ireland; (X.Z.); (A.B.); (C.O.); (B.S.)
| | - James Curtin
- Faculty of Engineering and Built Environment, Technological University Dublin, Bolton Street, D01 K822 Dublin, Ireland;
| | - Baljit Singh
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, D07 ADY7 Dublin, Ireland; (X.Z.); (A.B.); (C.O.); (B.S.)
- MiCRA Biodiagnostics Technology Gateway and Health, Engineering & Materials Sciences (HEMS) Research Hub, Technological University Dublin, D24 FKT9 Dublin, Ireland
| | - Furong Tian
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, D07 ADY7 Dublin, Ireland; (X.Z.); (A.B.); (C.O.); (B.S.)
- FOCAS Research Institute, Technological University Dublin, Camden Row, D08 CKP1 Dublin, Ireland
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3
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Kong X, Cheng L, Dong Z, Huang Y, Xue X, Wang Z, Wang Y, Zang X, Qian H, Chang L, Wang Y. Rapid Cryptococcus electroporated-lysis and sensitive detection on a miniaturized platform. Biosens Bioelectron 2024; 250:116096. [PMID: 38316089 DOI: 10.1016/j.bios.2024.116096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/07/2024]
Abstract
Fast and accurate detection of Cryptococcus and precise differentiation of its subtypes is of great significance in protecting people from cryptococcal disease and preventing its spread in populations. However, traditional Cryptococcus identification and detection techniques still face significant challenges in achieving high analysis speed as well as high sensitivity. In this work, we report an electric microfluidic biochip. Compared to conventional methods that take several hours or even a day, this chip can detect Cryptococcus within 20 min, and achieve its maximum detection limit within 1 h, with the ability to differentiate between the Cryptococcus neoformans (NEO) and rare Cryptococcus gattii (GAT) efficiently, which accounts for nearly 100%. This device integrated two functional zones of an electroporation lysis (EL) zone for rapid cell lysis (<30 s) and an electrochemical detection (ED) zone for sensitive analysis of the released nucleic acids. The EL zone adopted a design of microelectrode arrays, which obtains a large electric field intensity at the constriction of the microchannel, addressing the safety concerns associated with high-voltage lysis. The device enables a limit of detection (LOD) of 60 pg/mL for NEO and 100 pg/mL for GAT through the modification of nanocomposites and specific probes. In terms of the detection time and sensitivity, the integrated microfluidic biochip demonstrates broad potential in Cryptococcus diagnosis and disease prevention.
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Affiliation(s)
- Xiangzhu Kong
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China
| | - Long Cheng
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China
| | - Zaizai Dong
- School of Engineering Medicine, Beihang University, Beijing, 100191, China; Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China.
| | - Yemei Huang
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Xinying Xue
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China; Affiliated Hospital of Weifang Medical University, Weifang, 261000, China
| | - Zhiying Wang
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Yusen Wang
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Xuelei Zang
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Haisheng Qian
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China; School of Basic Medical Sciences, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China.
| | - Lingqian Chang
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China; Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China.
| | - Yang Wang
- School of Engineering Medicine, Beihang University, Beijing, 100191, China.
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4
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Nazari-Vanani R, Negahdary M. Recent advances in electrochemical aptasensors and genosensors for the detection of pathogens. ENVIRONMENTAL RESEARCH 2024; 243:117850. [PMID: 38081349 DOI: 10.1016/j.envres.2023.117850] [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: 10/03/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/17/2023]
Abstract
In recent years, pathogenic microorganisms have caused significant mortality rates and antibiotic resistance and triggered exorbitant healthcare costs. These pathogens often have high transmission rates within human populations. Rapid diagnosis is crucial in controlling and reducing the spread of pathogenic infections. The diagnostic methods currently used against individuals infected with these pathogens include relying on outward symptoms, immunological-based and, some biomolecular ones, which mainly have limitations such as diagnostic errors, time-consuming processes, and high-cost platforms. Electrochemical aptasensors and genosensors have emerged as promising diagnostic tools for rapid, accurate, and cost-effective pathogen detection. These bio-electrochemical platforms have been optimized for diagnostic purposes by incorporating advanced materials (mainly nanomaterials), biomolecular technologies, and innovative designs. This review classifies electrochemical aptasensors and genosensors developed between 2021 and 2023 based on their use of different nanomaterials, such as gold-based, carbon-based, and others that employed other innovative assemblies without the use of nanomaterials. Inspecting the diagnostic features of various sensing platforms against pathogenic analytes can identify research gaps and open new avenues for exploration.
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Affiliation(s)
- Razieh Nazari-Vanani
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Negahdary
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, Brazil.
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5
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Novakovic Z, Khalife M, Costache V, Camacho MJ, Cardoso S, Martins V, Gadjanski I, Radovic M, Vidic J. Rapid Detection and Identification of Vancomycin-Sensitive Bacteria Using an Electrochemical Apta-Sensor. ACS OMEGA 2024; 9:2841-2849. [PMID: 38250355 PMCID: PMC10795129 DOI: 10.1021/acsomega.3c08219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/23/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024]
Abstract
In order to combat the complex and diverse infections caused by bacteria, it is essential to develop efficient diagnostic tools. Current techniques for bacterial detection rely on laborious multistep procedures, with high costs and extended time of analysis. To overcome these limitations, we propose here a novel portable electrochemical biosensor for the rapid detection and identification of Gram-positive bacteria that leverages the recognition capabilities of vancomycin and aptamers. A vancomycin-modified screen-printed carbon electrode was used to selectively capture Gram-positive bacteria susceptible to this antibiotic. Electrochemical impedance spectroscopy and scanning electron microscopy demonstrated that capture was achieved in 10 min, with a limit of detection of only 2 CFU/mL. We then tested the device's potential for aptamer-based bacterial identification using Staphylococcus aureus and Bacillus cereus as the test strains. Specifically, electrodes with captured bacteria were exposed to species-specific aptamers, and the resulting changes in current intensity were analyzed using differential pulse voltammetry. When used directly in untreated milk or serum, the system was able to successfully identify a small amount of S. aureus and B. cereus (100 CFU/mL) in less than 45 min. This novel biosensor has the potential to serve as an invaluable tool that could be used, even by inexperienced staff, in a broad range of settings including clinical diagnostics, food safety analysis, environmental monitoring, and security applications.
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Affiliation(s)
- Zorica Novakovic
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Majd Khalife
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
| | - Vlad Costache
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
- MIMA2 Imaging Core Facility, Microscopie et Imagerie des Microorganismes, Animaux et Aliments, INRAE, 78350 Jouy-en-Josas, France
| | - Maria Joao Camacho
- INESC Microsistemas e Nanotecnologias Rua Alves Redol, 1000-049 Lisbon, Portugal
| | - Susana Cardoso
- INESC Microsistemas e Nanotecnologias Rua Alves Redol, 1000-049 Lisbon, Portugal
| | - Veronica Martins
- INESC Microsistemas e Nanotecnologias Rua Alves Redol, 1000-049 Lisbon, Portugal
| | - Ivana Gadjanski
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Marko Radovic
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Jasmina Vidic
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
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6
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Patil AVP, Yang PF, Yang CY, Gaur MS, Wu CC. A Critical Review on Detection of Foodborne Pathogens Using Electrochemical Biosensors. Crit Rev Biomed Eng 2024; 52:17-40. [PMID: 38523439 DOI: 10.1615/critrevbiomedeng.2023049469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
An outbreak of foodborne pathogens would cause severe consequences. Detecting and diagnosing foodborne diseases is crucial for food safety, and it is increasingly important to develop fast, sensitive, and cost-effective methods for detecting foodborne pathogens. In contrast to traditional methods, such as medium-based culture, nucleic acid amplification test, and enzyme-linked immunosorbent assay, electrochemical biosensors possess the advantages of simplicity, rapidity, high sensitivity, miniaturization, and low cost, making them ideal for developing pathogen-sensing devices. The biorecognition layer, consisting of recognition elements, such as aptamers, antibodies and bacteriophages, and other biomolecules or polymers, is the most critical component to determine the selectivity, specificity, reproducibility, and lifetime of a biosensor when detecting pathogens in a biosample. Furthermore, nanomaterials have been frequently used to improve electrochemical biosensors for sensitively detecting foodborne pathogens due to their high conductivity, surface-to-volume ratio, and electrocatalytic activity. In this review, we survey the characteristics of biorecognition elements and nanomaterials in constructing electrochemical biosensors applicable for detecting foodborne pathogens during the past five years. As well as the challenges and opportunities of electrochemical biosensors in the application of foodborne pathogen detection are discussed.
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Affiliation(s)
- Avinash V Police Patil
- Department of Bio-Industrial Mechatronics Engineering, National Chung Hsing University, Taichung City 402, Taiwan R.O.C
| | - Ping-Feng Yang
- Department of Bio-Industrial Mechatronics Engineering, National Chung Hsing University, Taichung City 402, Taiwan R.O.C
| | - Chiou-Ying Yang
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan R.O.C
| | - M S Gaur
- Department of Physics, Hindustan College of Science and Technology, Farah, Mathura, 281122 U.P., India
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Teymourinia H, Alshamsi HA, Al-Nayili A, Gholami M. Photocatalytic degradation of chlorpyrifos using Ag nanoparticles-doped g-C 3N 5 decorated with dendritic CdS. CHEMOSPHERE 2023; 344:140325. [PMID: 37797896 DOI: 10.1016/j.chemosphere.2023.140325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023]
Abstract
In this work, g-C3N5/CdS dendrite/AgNPs nanocomposite was synthesized using a mixed method consisting of hydrothermal, ultrasonic and chemistry reduction with sodium borohydride. The characterization of the as-prepared nanocomposite was done using infrared spectroscopy, X-ray, scanning electron microscopy, transmission electron microscopy, BET, and DRS methods was performed. The DRS results showed that the g-C3N5/CdS dendrite/AgNPs nanocomposite nanocomposite has a band gap of 1.08 eV. This band gap indicates the good capability of this nanocomposite as a photocatalyst. Accordingly, the photocatalytic degradation of chlorpyrifos (CPS) in was performed in an aqueous solution of the synthesized nanocomposite. The results showed that almost 95.3% of this poison, a concentration of 50 mg L-1 was degraded in the presence of 0.05 g L-1 of nanocomposite at pH = 5 in a 60 min. Hydroxide radicals and holes play a significant role in the photocatalytic process. The reusability of the nanocomposite with excellent performance in the degradation of photocatalytic toxins caused by the reduction in the electron-hole recombination and the high surface area of the nanocomposite are among the unique features of this work.
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Affiliation(s)
- Hakimeh Teymourinia
- Department of Biotechnology, Research Institute of Modern Biological Techniques (RIMBT), University of Zanjan, Zanjan, 45371-38791, Iran; Department of Chemistry, Faculty of Science, University of Zanjan, 45371-38791, Zanjan, Iran
| | - Hassan Abbas Alshamsi
- Department of Chemistry, College of Education, University of Al-Qadisiyah, Al Diwaniyah, Iraq
| | - Abbas Al-Nayili
- Department of Chemistry, College of Education, University of Al-Qadisiyah, Al Diwaniyah, Iraq
| | - Mitra Gholami
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
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8
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Garg R, Prasad D. Carbon dots and their interactions with recognition molecules for enhanced nucleic acid detection. Biochem Biophys Res Commun 2023; 680:93-107. [PMID: 37738905 DOI: 10.1016/j.bbrc.2023.09.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/04/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
Carbon Dots (C-dots) have exceptional fluorescence and incident wavelength alteration capabilities because of their π-π* electron transitions between the surface-trapped charges. They have clear, considerate and cost-effective applications in the domain of bio-sensing, optical imaging, medical diagnostics, fluorescence chemotherapy, forensics, and environmentology. Advances in the production process of C-dots can change their optical and chemical characteristics, allowing them to interact with a variety of chemicals and ions that can be exploited for the DNA detection in point-of-care devices. In the current scenario of pathogenic disease prevention, metagenomics and industrial processes, alternative genetic material identification is critical. This review focuses on the existing carbon dots-based DNA detection technologies and their interactions with other components such as metallic salts, dyes, and biological chemicals based on their surface charge distribution (positive or negative) employed in the DNA diagnostic devices and biosensors with their operating mechanism regarding their target component. These intriguing scientific discoveries and technologies will be extensively examined to translate them into real-world solutions which will have a significant societal and economic impact on overall well-being and innovation.
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Affiliation(s)
- Rishabh Garg
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Dinesh Prasad
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
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9
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Luo L, Jiang C, Li H, Ning D, Lao S, Liang Z, Tang L, Chen W, Ya Y. An electrochemical aptasensor for detection of carbofuran using gold nanoparticles decorated hierarchical porous carbon as an effective sensing platform. CHEMOSPHERE 2023; 341:140033. [PMID: 37659518 DOI: 10.1016/j.chemosphere.2023.140033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/23/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
In this study, a novel electrochemical aptasensor for carbofuran (CBF) detection is prepared by gold nanoparticles decorated hierarchical porous carbon (Au@HPC). The prepared carbon materials show a three-dimensional hierarchical structure with a large specific surface area and a highly developed porous structure. Aptamers loading significantly improves when gold nanoparticles are embedded into the hierarchical porous carbon skeleton. Besides, Au@HPC modified electrode exhibits a large electroactive area and excellent electrochemical conductivity, serving as a promising platform for highly sensitive and selective electrochemical detection of CBF. The developed CBF electrochemical aptasensor shows a wide linear from 1.0 to 100000 pg/L with a detection limit of 0.5 pg/L, demonstrating an extraordinary sensitivity compared to other sensors for CBF detection. Additionally, the designed aptasensor was used to monitor the CBF in vegetable samples, with a recovery range from 98.4% to 104.8%. The results coincide with the standard test method, revealing its practicability in the food safety analysis.
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Affiliation(s)
- Lihong Luo
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Cuiwen Jiang
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Hu Li
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Dejiao Ning
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Shuibing Lao
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Zhongdan Liang
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Li Tang
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Weiwei Chen
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Yu Ya
- Institute for Agricultural Product Quality Safety and Testing Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China.
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10
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Abedi R, Raoof JB, Mohseni M, Bagheri Hashkavayi A. A signal-off aptasensor for the determination of Acinetobacter baumannii by using methylene blue as an electrochemical probe. Mikrochim Acta 2023; 190:308. [PMID: 37466698 DOI: 10.1007/s00604-023-05901-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023]
Abstract
An electrochemical aptasensor has been developed to detect Acinetobacter baumannii (A. baumannii). The proposed system was developed by modifying carbon screen-printed electrodes (CSPEs) with a synthesized MWCNT@Fe3O4@SiO2-Cl nanocomposite and then binding A. baumannii-specific aptamer using covalent immobilization on the modified electrode surface and the interaction of methylene blue (MB) with Apt as an electrochemical redox indicator. As a result of the incubation of the A. baumannii bacteria as a target on the proposed aptasensor, a cathodic peak current density (Jpc) of MB decreased due to the formation of the Apt-A. baumannii complex and MB being released from the immobilized Apt on the surface of the modified electrode. In addition to increasing the electron transfer kinetics, the nanocomposite provides a relatively stable matrix to improve the loading Apt sequence. The suggested aptasensor was demonstrated to be capable of detecting A. baumannii with a linear range of 10.0-1.0 × 107 colony-forming unit (CFU) mL-1 and a detection limit of 1 CFU mL-1 (S/N = 3) using differential pulse voltammetry (DPV) studies at a working potential of ~0.29 V and a scan rate of 100 mV s-1. The outcomes revealed that the aptasensor exhibited high A. baumannii detection sensitivity, stability, reproducibility, and specificity.
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Affiliation(s)
- Rokhsareh Abedi
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | - Mojtaba Mohseni
- Department of Molecular and Cell Biology, University of Mazandaran, Babolsar, 47416-95447, Iran
| | - Ayemeh Bagheri Hashkavayi
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 27606, USA
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11
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Huang Y, Ye D, Yang J, Zhu W, Li L, Ding Y. Dual recognition elements for selective determination of progesterone based on molecularly imprinted electrochemical aptasensor. Anal Chim Acta 2023; 1264:341288. [PMID: 37230721 DOI: 10.1016/j.aca.2023.341288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023]
Abstract
A novel molecularly imprinted electrochemical aptasensor (MIEAS) was constructed for selective progesterone (P4) detection based on SnO2-graphene (SnO2-Gr) nanomaterial and gold nanoparticles (AuNPs). SnO2-Gr with a large specific area and excellent conductivity improved the adsorption capacity of P4. Aptamer, as biocompatible monomer, was captured by AuNPs on modified electrode through Au-S bond. An electropolymerized molecularly imprinted polymer (MIP) film consisted of p-aminothiophenol as chemical functional monomer and P4 as template molecule. Due to the synergetic effect of MIP and aptamer towards P4, this MIEAS exhibited better selectivity than the sensor with MIP or aptamer as single recognition element. The prepared sensor had a low detection limit of 1.73 × 10-15 M in a wide linear range from 10-14 M to 10-5 M. Satisfactory recovery obtained in tap water and milk samples proved that this sensor had great potential in environmental and food analysis.
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Affiliation(s)
- Yan Huang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Daixin Ye
- College of Sciences & Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, PR China
| | - Jing Yang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Wenyi Zhu
- Shanghai University Hospital, Shanghai University, Shanghai, 200444, PR China
| | - Li Li
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Yaping Ding
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, PR China; Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai, 200444, PR China.
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12
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Tătaru AM, Canciu A, Tertiș M, Cristea C, Cernat A. Staphylococcus aureus - Review on potential targets for sensors development. Bioelectrochemistry 2023; 153:108492. [PMID: 37413820 DOI: 10.1016/j.bioelechem.2023.108492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/08/2023]
Abstract
Staphylococcus aureus (S. aureus) is accountable for a wide variety of clinical disease with a high rate of morbidity and mortality around the globe. It has a leading place into the ESKAPE group that includes six pathogens and exhibit multidrug resistance and are the major cause of healthcare associated infections: Enterococcus faecium, S. aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp. A critical overview regarding the development of sensors for both S. aureus and his, more dangerous alter ego, Methicillin-resistant S. aureus (MRSA) was presented focusing on the bacteria targets starting with the detection of the whole cell, up to specific wall components, toxins or other virulence factors. The literature data was systematically assessed having in sight the design of the sensing platforms, the analytical performances, and possible courses of action to be implemented in real practice as point-of-care (POC) devices. Moreover, a distinct section was dedicated to commercially available devices and out of the box approaches, namely the use of bacteriophages as an alternative to antimicrobial therapy and as sensors modifiers. The reviewed sensors and devices were discussed in terms of their suitability for different biosensing applications, in early screening of contamination regarding food analysis, environmental monitoring and in clinical diagnosis.
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Affiliation(s)
- Ana-Maria Tătaru
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur St., 400349 Cluj-Napoca, Romania
| | - Alexandra Canciu
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur St., 400349 Cluj-Napoca, Romania
| | - Mihaela Tertiș
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur St., 400349 Cluj-Napoca, Romania
| | - Cecilia Cristea
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur St., 400349 Cluj-Napoca, Romania.
| | - Andreea Cernat
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur St., 400349 Cluj-Napoca, Romania
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13
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Abedi R, Bakhsh Raoof J, Mohseni M, Bagheri Hashkavayi A. Sandwich-Type Electrochemical Aptasensor for Highly Sensitive and Selective Detection of Pseudomonas Aeruginosa Bacteria Using a Dual Signal Amplification Strategy. Bioelectrochemistry 2023; 150:108332. [PMID: 36493674 DOI: 10.1016/j.bioelechem.2022.108332] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/12/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022]
Abstract
An electrochemical aptasensor developed to realize the detection of Pseudomonas aeruginosa (P. aeruginosa) bacteria based on a signal amplification strategy. The carbon screen-printed electrode (CSPE) surface was modified by MIL-101(Cr)/Multi-walled carbon nanotubes (MWCNT), which significantly increased the effective surface area of the electrode, thus resulting in further F23 aptamer immobilization at the surface of the modified electrode. As a result, the P. aeruginosa can be efficiently captured onto the surface of the aptasensor. Moreover, aptamer immobilized on the two-dimensional graphitic carbon nitride complex with silver nanoparticles (AgNPs/c-g-C3N4/Apt) was used as an electrochemical signal label, connected to P. aeruginosa bacteria at the modified electrode. This strategy increased the aptamer surface density and the sensitivity for detecting P. aeruginosa. Also, the resultant material was thoroughly characterized using Fourier transform infrared (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET) analysis techniques. A highly sensitive voltammetric aptasensor for P. aeruginosa detection was obtained via this strategy at the limit of detection of 1 Colony-forming unit (CFU)/mL (σ = 3). Therefore, this proposed strategy with dual signal amplification can be a promising platform for simple, practical, reliable, and sensitive method for P. aeruginosa.
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Affiliation(s)
- Rokhsareh Abedi
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | - Mojtaba Mohseni
- Department of Microbiology, Faculty of Science, University of Mazandaran, Iran
| | - Ayemeh Bagheri Hashkavayi
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
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14
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Fathi-Karkan S, Mirinejad S, Ulucan-Karnak F, Mukhtar M, Almanghadim HG, Sargazi S, Rahdar A, Díez-Pascual AM. Biomedical applications of aptamer-modified chitosan nanomaterials: An updated review. Int J Biol Macromol 2023; 238:124103. [PMID: 36948344 DOI: 10.1016/j.ijbiomac.2023.124103] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/02/2023] [Accepted: 03/16/2023] [Indexed: 03/24/2023]
Abstract
Among polysaccharides of environmental and economic interest, chitosan (CS) is receiving much attention, particularly in the food and biotechnology industries to encapsulate active food ingredients and immobilize enzymes. CS nanoparticles (CS NPs) combine the intrinsic beneficial properties of both natural polymers and nanoscale particles such as quantum size effect, biocompatibility, biodegradability, and ease of modification, and have great potential for bioimaging, drug delivery, and biosensing applications. Aptamers are single-stranded oligonucleotides that can fold into predetermined structures and bind to the corresponding biomolecules. They are mainly used as targeting ligands in biosensors, disease diagnostic kits and treatment strategies. They can deliver contrast agents and drugs into cancer cells and tissues, control microorganism growth and precisely target pathogens. Aptamer-conjugated CS NPs can significantly improve the efficacy of conventional therapies, minimize their side effects on normal tissues, and overcome the enhanced permeability retention (EPR) effect. Further, aptamer-conjugated carbohydrate-based nanobiopolymers have shown excellent antibacterial and antiviral properties and can be used to develop novel biosensors for the efficient detection of antibiotics, toxins, and other biomolecules. This updated review aims to provide a comprehensive overview of the bioapplications of aptamer-conjugated CS NPs used as innovative diagnostic and therapeutic platforms, their limitations, and potential future directions.
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Affiliation(s)
- Sonia Fathi-Karkan
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd 94531-55166, Iran
| | - Shekoufeh Mirinejad
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran
| | - Fulden Ulucan-Karnak
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, İzmir 35100, Turkey
| | - Mahwash Mukhtar
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, 6720 Szeged, Hungary.
| | | | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran
| | - Abbas Rahdar
- Department of Physics, University of Zabol, Zabol, P.O. Box 98613-35856, Iran.
| | - Ana M Díez-Pascual
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona, Km. 33.6, 28805 Alcalá de Henares, Madrid, Spain.
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15
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Understanding the characteristics of phytofabricated silver nanoparticles and their leishmanicidal potential against Indian strain of Leishmania donovani. APPLIED NANOSCIENCE 2023. [DOI: 10.1007/s13204-023-02813-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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16
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Chen Y, Chen Y, Yi HC, Gu HW, Yin XL, Xiang DL, Zou P. An electrochemical and colorimetric dual-mode aptasensor for Staphylococcus aureus based on a multifunctional MOF and magnetic separation technique. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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17
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Shahdost-Fard F, Faridfar S, Keihan AH, Aghaei M, Petrenko I, Ahmadi F, Ehrlich H, Rahimi-Nasrabadi M. Applicability of a Green Nanocomposite Consisted of Spongin Decorated Cu 2WO 4(OH) 2 and AgNPs as a High-Performance Aptasensing Platform in Staphylococcus aureus Detection. BIOSENSORS 2023; 13:271. [PMID: 36832038 PMCID: PMC9954421 DOI: 10.3390/bios13020271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
This study reports the synthesis of a nanocomposite consisting of spongin and its applicability in the development of an aptasensing platform with high performance. The spongin was carefully extracted from a marine sponge and decorated with copper tungsten oxide hydroxide. The resulting spongin-copper tungsten oxide hydroxide was functionalized by silver nanoparticles and utilized in electrochemical aptasensor fabrication. The nanocomposite covered on a glassy carbon electrode surface amplified the electron transfer and increased active electrochemical sites. The aptasensor was fabricated by loading of thiolated aptamer on the embedded surface via thiol-AgNPs linkage. The applicability of the aptasensor was tested in detecting the Staphylococcus aureus bacterium as one of the five most common causes of nosocomial infectious diseases. The aptasensor measured S. aureus under a linear concentration range of 10-108 colony-forming units per milliliter and a limit of quantification and detection of 12 and 1 colony-forming unit per milliliter, respectively. The highly selective diagnosis of S. aureus in the presence of some common bacterial strains was satisfactorily evaluated. The acceptable results of the human serum analysis as the real sample may be promising in the bacteria tracking in clinical samples underlying the green chemistry principle.
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Affiliation(s)
- Faezeh Shahdost-Fard
- Department of Chemistry, Faculty of Basic Sciences, Farhangian University, Tehran 19396-14464, Iran
| | - Shahin Faridfar
- Department of Chemistry, Faculty of Science, University of Imam Hossein, Tehran 15816-18711, Iran
| | - Amir Homayoun Keihan
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 19516-83759, Iran
| | - Mohammad Aghaei
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 84334-71964, Iran
| | - Iaroslav Petrenko
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg, 09599 Freiberg, Germany
| | - Farhad Ahmadi
- Physiology Research Center, Iran University of Medical Sciences, Tehran 14496-14535, Iran
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran 14496-14535, Iran
| | - Hermann Ehrlich
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg, 09599 Freiberg, Germany
- Center for Advanced Technology, Adam Mickiewicz University, 61-614 Poznan, Poland
| | - Mehdi Rahimi-Nasrabadi
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg, 09599 Freiberg, Germany
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran 14179-35840, Iran
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18
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de Melo MIA, da Silva Cunha P, Ferreira IM, de Andrade ASR. DNA aptamers selection for Staphylococcus aureus cells by SELEX and Cell-SELEX. Mol Biol Rep 2023; 50:157-165. [PMID: 36315328 DOI: 10.1007/s11033-022-07991-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Staphylococcus aureus is the most common bacteria found in skin, soft tissues, bone, and bone prostheses infections. The aim of this study was to select DNA aptamers for S. aureus to be applied in the diagnosis of bacteria. METHODS AND RESULTS We used SELEX (Systematic Evolution of Ligands by EXponencial Enrichment) for peptidoglycan followed by cell-SELEX with S. aureus cells as target. Four sequences showed significantly higher binding to S. aureus distinguishing it from the control cells of other significant microbial species: Escherichia coli, Candida albicans, Streptococcus pyogenes and Streptococcus pneumoniae. In particular, ApSA1 (Kd = 62.7 ± 5.6 nM) and ApSA3 (Kd = 43.3 ± 3.0 nM) sequences combined high affinity and specificity for S. aureus, considering all microorganisms tested. CONCLUSIONS Our results demonstrated that these aptamers were able to identify peptidoglycan in the S. aureus surface and have great potential for use in the development of radiopharmaceuticals capable to identify S. aureus infectious foci, as well as in other aptamer-based methodologies for bacteria diagnosis.
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Affiliation(s)
| | - Pricila da Silva Cunha
- Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, 31270-901, Belo Horizonte, MG, Brazil.,Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais, 36884-036, Muriaé, MG, Brazil
| | - Iêda Mendes Ferreira
- Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, 31270-901, Belo Horizonte, MG, Brazil
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Wu Q, Tao H, Wu Y, Wang X, Shi Q, Xiang D. A Label-Free Electrochemical Aptasensor Based on Zn/Fe Bimetallic MOF Derived Nanoporous Carbon for Ultra-Sensitive and Selective Determination of Paraquat in Vegetables. Foods 2022; 11:foods11162405. [PMID: 36010404 PMCID: PMC9407144 DOI: 10.3390/foods11162405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 12/03/2022] Open
Abstract
Paraquat (PQ) has high acute toxicity, even at low concentrations. For most people, the main pathway of exposure to PQ is through the diet. Therefore, the development of simple and efficient methods for PQ testing is critical for ensuring food safety. In this study, a new electrochemical detection strategy for paraquat is proposed based on the specific binding of PQ to its nucleic acid aptamer. Firstly, the Zn/Fe bimetallic ZIF derived nanoporous carbon (Zn/Fe-ZIF-NPC) and nickel hexacyanoferrate nanoparticles (NiHCF-NPs) were sequentially modified onto the glassy carbon electrode (GCE). NiHCF-NPs served as the signal probes, while Zn/Fe-ZIF-NPC facilitated electron transfer and effectively enhanced the sensing signal of NiHCF-NPs. Au nanoparticles (AuNPs) were then electrodeposited on the NiHCF-NPs/Zn/Fe-ZIF-NPC/GCE and then the thiolated aptamer was assembled on the AuNPs/NiHCF-NPs/Zn/Fe-ZIF-NPC/GCE via Au-S bonding. When incubated with PQ, the formation of PQ–aptamer complexes delayed the interfacial electron transport reaction of NiHCF-NPs, which caused a decrease in the current signals. As a result, simple and highly sensitive detection of PQ can be readily achieved by detecting the signal changes. A linear range was obtained from 0.001 to 100 mg/L with a detection limit as low as 0.34 μg/L. Due to the recognition specificity of the aptamer to its target molecule, the proposed method has excellent anti-interference ability. The prepared electrochemical aptasensor was successfully used for PQ assay in lettuce, cabbage and agriculture irrigation water samples with recoveries ranging from 96.20% to 104.02%, demonstrating the validity and practicality of the proposed method for PQ detection in real samples.
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Affiliation(s)
- Qiaoling Wu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Fermentation Engineering and Biopharmacy of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Han Tao
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Fermentation Engineering and Biopharmacy of Guizhou Province, Guizhou University, Guiyang 550025, China
- Correspondence: ; Tel.: +86-0851-88236895
| | - Yuangen Wu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Fermentation Engineering and Biopharmacy of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Xiao Wang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Fermentation Engineering and Biopharmacy of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Qili Shi
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Fermentation Engineering and Biopharmacy of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Donglin Xiang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Fermentation Engineering and Biopharmacy of Guizhou Province, Guizhou University, Guiyang 550025, China
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Wang H, Yang L, Tan Y, Deng W, Xie Q. Ag2S quantum dots loaded dendritic mesoporous silica nanospheres as signal amplification labels for ultrasensitive electrochemical immuno-biosensor for Staphylococcus aureus. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Tang Z, Chen F, Wang D, Xiong D, Yan S, Liu S, Tang H. Fabrication of avidin-stabilized gold nanoclusters with dual emissions and their application in biosensing. J Nanobiotechnology 2022; 20:306. [PMID: 35761380 PMCID: PMC9235210 DOI: 10.1186/s12951-022-01512-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 06/16/2022] [Indexed: 11/26/2022] Open
Abstract
Protein-stabilized gold nanoclusters (Prot-Au NCs) have been widely used in biosensing and cell imaging owing to their excellent optical properties and low biotoxicity. However, several Prot-Au NCs reported in the literature do not retain the biological role of the protein, which greatly limits their ability to directly detect biomarkers. This study demonstrated for the first time the successful synthesis of dual-function avidin-stabilized gold nanoclusters (Av–Au NCs) using a one-pot method. The resulting Av–Au NCs exhibited intense blue and red emissions under 374 nm excitation. Furthermore, the Av–Au NCs retained the native functionality of avidin to bind to biotin. When DNA strands modified with biotin at both ends (i.e., linker chains) were mixed with Av–Au NCs, large polymers were formed, indicating that Av–Au NCs could achieve fluorescence signal amplification by interacting with biotin. Taking advantage of the aforementioned properties, we constructed a novel enzyme-free fluorescent biosensor based on the Av–Au NCs-biotin system to detect DNA. The designed fluorescent biosensor could detect target DNA down to 0.043 nM, with a wide line range from 0.2 nM to 20 µM. Thus, these dual-functional Av–Au NCs were shown to be an excellent fluorescent material for biosensing. Avidin-stabilized gold nanoclusters (Av–Au NCs) were synthesized for the first time by a water-bath method. The synthesized Av–Au NCs not only exhibited intense blue and red emissions under 374 nm excitation, but also retained the native functionality of avidin to bind to biotin. The fluorescent signal amplification system constructed by the interaction of Av–Au NCs with biotin was successfully applied to detect target DNA in vitro.
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Affiliation(s)
- Zhenrong Tang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400042, China
| | - Fengjiao Chen
- Guangshan County People's Hospital, Xinyang, 465450, Henan, China
| | - Dan Wang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, 400016, China
| | - Dongmei Xiong
- Nursing School of Chongqing Medical and Pharmaceutical College, Chongqing, 401331, China
| | - Shaoying Yan
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shengchun Liu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400042, China.
| | - Hua Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, 400016, China.
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22
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Imani R, Shabani-Nooshabadi M, Ziaie N. Fabrication of a sensitive sensor for electrochemical detection of diltiazem in presence of methyldopa. CHEMOSPHERE 2022; 297:134170. [PMID: 35247446 DOI: 10.1016/j.chemosphere.2022.134170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/07/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Diltiazem (DTZ) is one of the most important drugs in blood pressure that is used to treat cardiovascular diseases. With this overuse of this drug and its use for suicide, swelling and neck cramps and fever has made it important to measure it. So, this paper will give an account of modification of carbon paste electrode with the ternary-nanocomposite including reduced-graphene oxide (rGO), cadmium oxide and 1-ethyl 3- methyl imidazole chloride as ionic liquid for using the determination of DTZ in blood serum samples. Characterization of the synthesized rGO, cadmium oxide, and modified electrodes and their electrochemical performance were studied by, scanning electron microscopy, and X-ray diffraction, electrochemical impedance spectroscopy, and voltammetry technique. The improvement of the DTZ oxidation current by modified electrode originated from the increased electrode surface area. The optimized method was validated and the results showed that LOD = 3 nM and good linearity. Also, a linear concentration range of 0.01-150 μM with a LOD of 0.03 μM in presence methyldopa were achieved based on the electrochemical investigations. The prepared sensor showed good repeatability (RSD = 2.26%) and selectivity for DTZ determination in the real samples (relative recovery of 93-102%).
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Affiliation(s)
- Razieh Imani
- Department of Analytical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Mehdi Shabani-Nooshabadi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran; Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P.O. Box 87317-51167, Iran.
| | - Neda Ziaie
- Department of Analytical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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23
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A multiplexed electrochemical quantitative polymerase chain reaction platform for single-base mutation analysis. Biosens Bioelectron 2022; 214:114496. [DOI: 10.1016/j.bios.2022.114496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 06/19/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022]
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24
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Chen W, Chen Z, Lai Q, Zhang Y, Long M, Liang B, Liu Z. Specific and ultrasensitive detection of Staphylococcus aureus with a catechol-chitosan redox capacitor based electrochemical aptasensor. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116357] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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