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Shukla AK, Park D, Kim B. Analyzing bacterial detection and transport using redox impact electrochemistry. Anal Chim Acta 2024; 1319:342964. [PMID: 39122287 DOI: 10.1016/j.aca.2024.342964] [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: 05/24/2024] [Revised: 07/07/2024] [Accepted: 07/08/2024] [Indexed: 08/12/2024]
Abstract
Understanding bacterial transport dynamics, particularly at the single-particle level, is crucial across diverse fields from environmental science to biomedical research. In recent times, the emerging impact electrochemistry method offers a transformative approach for detection of bacteria at the single-particle level. The method employs the principle of single-entity electrochemistry to scrutinize electrochemical processes during interaction with the working electrode. In this study, we utilized redox impact electrochemistry to detect bacteria and analyze their transport processes towards the working electrode. Stochastic detection using redox reactions at the ultramicroelectrode enabled the detection of individual bacteria, with collision resulting in a current spike signal due to charge transfer. Notably, the detection of bacteria was demonstrated at an exceptionally low concentration (100 CFU/mL), with recorded current spikes reaching approximately 8.1 nA. Analysis of integrated areas under these spikes unveiled a diverse distribution of charge transfer at the ultramicroelectrode during redox reactions, implying variations in bacterial sizes, collision positions on the electrode surface, and redox activity among bacteria. Remarkably, the average charge transfer per bacterium between E. coli and the electrode was found to be (244 ± 24) pC, underscoring the intrinsic redox activity of the bacteria, equivalent to (2.52 ± 0.25) × 10-15 mol. Additionally, our investigation explored the effects of cell transport mechanisms, including diffusion, migration, convection, and settlement on stochastic interactions of the bacteria at the ultramicroelectrode. Through the collision frequency calculations, we found that migration is the primary factor shaping bacterial transport, with gravitational cell settlement also exerting a significant influence.
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Affiliation(s)
- Ashish Kumar Shukla
- School of Mechatronics Engineering, Korea University of Technology and Education, Cheonan, Chungnam, 31253, Republic of Korea
| | - Dongkyou Park
- Department of Electromechanical Convergence Engineering, Korea University of Technology and Education Cheonan, 31253, Chungnam, Republic of Korea.
| | - Byungki Kim
- School of Mechatronics Engineering, Korea University of Technology and Education, Cheonan, Chungnam, 31253, Republic of Korea; Future Convergence Engineering, Korea University of Technology and Education, Cheonan, Chungnam, 31253, Republic of Korea.
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2
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Clarke TB, Krushinski LE, Vannoy KJ, Colón-Quintana G, Roy K, Rana A, Renault C, Hill ML, Dick JE. Single Entity Electrocatalysis. Chem Rev 2024; 124:9015-9080. [PMID: 39018111 DOI: 10.1021/acs.chemrev.3c00723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
Making a measurement over millions of nanoparticles or exposed crystal facets seldom reports on reactivity of a single nanoparticle or facet, which may depart drastically from ensemble measurements. Within the past 30 years, science has moved toward studying the reactivity of single atoms, molecules, and nanoparticles, one at a time. This shift has been fueled by the realization that everything changes at the nanoscale, especially important industrially relevant properties like those important to electrocatalysis. Studying single nanoscale entities, however, is not trivial and has required the development of new measurement tools. This review explores a tale of the clever use of old and new measurement tools to study electrocatalysis at the single entity level. We explore in detail the complex interrelationship between measurement method, electrocatalytic material, and reaction of interest (e.g., carbon dioxide reduction, oxygen reduction, hydrazine oxidation, etc.). We end with our perspective on the future of single entity electrocatalysis with a key focus on what types of measurements present the greatest opportunity for fundamental discovery.
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Affiliation(s)
- Thomas B Clarke
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Lynn E Krushinski
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Kathryn J Vannoy
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | | | - Kingshuk Roy
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Ashutosh Rana
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Christophe Renault
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, Illinois 60660, United States
| | - Megan L Hill
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jeffrey E Dick
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
- Elmore Family School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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3
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Xu Y, Sun AR, Liu HY, Zhang ZL. Collision Oxidation Behavior of Silver Nanoparticles in Alkaline Solution. J Phys Chem Lett 2024; 15:5594-5599. [PMID: 38755539 DOI: 10.1021/acs.jpclett.4c01226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
In recent years, silver nanoparticles (Ag NPs) have been used as positive electrode material for zinc/silver batteries, and the silver oxides formed during the charging process determine the discharge performance of batteries. Therefore, it is important to study the oxidation behavior of Ag NPs in alkaline solution. Single-nanoparticle collision is an important tool for analyzing oxidation behavior of individual nanoparticles. Based on thermodynamic information from collision events, it is known that oxidation products are potential-dependent and size-dependent. Based on dynamic information, including collisional peak shapes and duration time, it was observed that the Ag NP collision oxidation process changed from stepwise oxidation to direct oxidation as the potential increased or size decreased. This work provides guidance for application of Ag NPs in zinc/silver batteries and proposed a strategy for oxidation behavior of individual NP that could be tracked in situ through an all-encompassing view of thermodynamic and dynamic information.
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Affiliation(s)
- Ying Xu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - An-Rong Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Hong-Yuan Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
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Guo R, Wang J, Zhao W, Cui S, Qian S, Chen Q, Li X, Liu Y, Zhang Q. A novel strategy for specific sensing and inactivation of Escherichia coli: Constructing a targeted sandwich-type biosensor with multiple SERS hotspots to enhance SERS detection sensitivity and near-infrared light-triggered photothermal sterilization performance. Talanta 2024; 269:125466. [PMID: 38008021 DOI: 10.1016/j.talanta.2023.125466] [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: 07/03/2023] [Revised: 10/12/2023] [Accepted: 11/21/2023] [Indexed: 11/28/2023]
Abstract
Human health is greatly threatened by bacterial infection, which raises the risk of serious illness and death in humans. For early screening and accurate treatment of bacterial infection, there is a strong desire to undertake ultrasensitive detection and effective killing of pathogenic bacteria. Herein, a novel surface-enhanced Raman scattering (SERS) biosensor based on sandwich structure consisting of capture probes/bacteria/SERS tags was established for specific identification, capture and photothermal killing of Escherichia coli (E. coli). Finite-difference time-domain (FDTD) technique was used to simulate the electromagnetic field distribution of capture probes, SERS tags and sandwich-type SERS substrate, and a possible SERS enhancement mechanism based on sandwich structure was presented and discussed. Sandwich-type SERS biosensor successfully achieved distinctive identification and magnetic beneficiation of E. coli. In addition, a single SERS substrate, including capture probes and SERS tags, could also achieve outstanding photothermal effects as a consequence of localized surface plasmon resonance (LSPR) effect. Intriguingly, sandwich-type SERS biosensor demonstrated a higher photothermal conversion efficiency (50.03 %) than the single substrate, which might be attributed to the formation of target bacterial clusters. The superior biocompatibility and the low toxicity of the sandwich-type biosensor were confirmed. Our approach offers a fresh method for constructing sandwich-type biosensor with multiple SERS hotspots based on extremely effective hybrid plasmonic nanoparticles, and has a wide range of potential applications in the recognition and treatment of bacteria.
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Affiliation(s)
- Rui Guo
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China
| | - Jingru Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China
| | - Wenshi Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sicheng Cui
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China
| | - Sihan Qian
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China
| | - Qiuxu Chen
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China
| | - Xue Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China.
| | - Qi Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China.
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Vu MP, Le Hanh Tran N, Lam TQ, Quynh Tran AT, Anh Le TP, Nguyen KT. Investigating the effects of ultrafine bubbles on bacterial growth. RSC Adv 2024; 14:2159-2169. [PMID: 38205233 PMCID: PMC10777100 DOI: 10.1039/d3ra07454d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Several previous studies have considered ultrafine bubbles as a potential research target because their properties can be applied in many different research areas. In particular, the interaction between UFBs and microorganisms has always been one of the aspects that receives much attention due to the high difficulty in controlling a living system. The properties of UFBs, as mobile air-water interfaces, are greatly determined by their gas cores which play a critical role in regulating microbial growth. This study aims to investigate the effects of ultrafine bubbles on bacterial growth. Two well-studied organisms were chosen as models - Escherichia coli and Staphylococcus aureus. Their growing behavior was examined based on the growth rate, phenotype and biomass. Three types of Luria-Bertani cultures were tested, including a standard culture containing distilled water, an air ultrafine bubble culture, and a hydrogen ultrafine bubble culture. The UFBs were generated via ultrasonic cavitation and stabilized by 50 μM SDS, which was proven to have negligible effects on bacterial growth. By comparing among the three cultivation conditions, the bacterial growth rates were observed to be the highest in exposure to HUFBs. The results also signified that UFBs had an enhancement on cell proliferation. On the other hand, while proposing an increase in cell density, bacteria cultured in HUFB media have their sizes decreased uniformly and significantly (p-value < 0.05). This study confirmed that bacterial growth was promoted by UFBs; and better effects recorded were due to the HUFB present in the culture media. However, the average morphological size of bacteria was in negative correlation with their population size.
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Affiliation(s)
- Mai Phuong Vu
- School of Biotechnology, International University, Vietnam National University Ho Chi Minh City 700000 Vietnam +84 28 3724 4271 +84 28 3724 4270
| | - Nguyen Le Hanh Tran
- School of Biotechnology, International University, Vietnam National University Ho Chi Minh City 700000 Vietnam +84 28 3724 4271 +84 28 3724 4270
| | - Thien Quang Lam
- School of Biotechnology, International University, Vietnam National University Ho Chi Minh City 700000 Vietnam +84 28 3724 4271 +84 28 3724 4270
| | - Anh Thi Quynh Tran
- School of Biotechnology, International University, Vietnam National University Ho Chi Minh City 700000 Vietnam +84 28 3724 4271 +84 28 3724 4270
| | - Thu Phan Anh Le
- School of Biotechnology, International University, Vietnam National University Ho Chi Minh City 700000 Vietnam +84 28 3724 4271 +84 28 3724 4270
| | - Khoi Tan Nguyen
- School of Biotechnology, International University, Vietnam National University Ho Chi Minh City 700000 Vietnam +84 28 3724 4271 +84 28 3724 4270
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6
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Zhang H, Gao G, Chen Y, Lin L, Wang D, Fan Y, Liu Y, Zhao Q, Zhi J. Effect of cell settlement on the electrochemical collision behaviors of single microbes. Anal Chim Acta 2023; 1283:341949. [PMID: 37977779 DOI: 10.1016/j.aca.2023.341949] [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: 08/03/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023]
Abstract
Electrochemical collision technique has emerged as a powerful approach to detect the intrinsic properties of single entities. The diffusion model, together with migration and convection processes are generally used to describe the transport and collision processes of single entities. However, things become more complicated concerning microbes because of their relatively large size, inherent motility and biological activities. In this work, the electrochemical collision behaviors of four different microorganisms: Escherichia coli (Gram-negative bacteria), Staphylococcus aureus, Bacillus subtilis (Gram-positive bacteria) and Saccharomyces cerevisiae (fungus) were systematically detected and compared using a blocking strategy. By using K4Fe(CN)6 as redox probe, the downwards step-like signals were recorded in the collision process of all the three bacteria, whereas the collision of S. cerevisiae was rarely detected. To further investigate the underlying reason for the abnormal collision behavior of S. cerevisiae, the effect of cell settlement was discussed. The results indicated that ellipsoidal S. cerevisiae with a cell size larger than 2 μm exhibited a cell sedimentation rate of 261.759 nm s-1, which is dozens of times higher than the other three bacteria. By further enhanced convection near the microelectrode or positioned the microelectrode at the bottom of electrochemical cell, the collision signals of S. cerevisiae were successfully detected, indicating cell sedimentation is a nonnegligible force in large cell transport. This study fully addressed the effect of cell settlement on the transport of microbial cells and provided two strategies to counteract this effect, which benefit for the deeper understanding and further application of electrochemical collision technique in single-cell detection.
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Affiliation(s)
- Hanxin Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Guanyue Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
| | - Yafei Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Lan Lin
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Dengchao Wang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yining Fan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yanran Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Qi Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
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7
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Lam DL, Cheng YT, Huang CJ. Biodegradable and pH-Responsive Amphiphilic Poly(succinimide) Derivatives for Triggered Release of Antibiotics for Management of Infected Wounds. ACS APPLIED MATERIALS & INTERFACES 2023; 15:53297-53309. [PMID: 37947480 DOI: 10.1021/acsami.3c12939] [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] [Indexed: 11/12/2023]
Abstract
Wound infection has become a healthy economic burden globally. Current wound management mainly relies on the use of antibiotics; however, the misuse and overuse of antibiotics can easily result in antibiotic resistance. This study proposes a biodegradable, biocompatible, and pH-responsive amphiphilic 11-aminoundecanoic acid-grafted polysuccinimide (AUA-PSI) as a nanocarrier for drug encapsulation via nanoprecipitation. The succinimide groups in the backbone of PSI allow facile postfunctionalization via an aminolysis reaction. The degree of substitution of AUA can be modulated to adjust the degradation rate, pH sensitivity, and drug-release profile. Antibiotic rifampicin was incorporated with AUA-PSI to form Rif-AUA-PSI nanoparticles and demonstrated pH-responsiveness and antimicrobial activity. Because of the elevation of the pH value from pH = ∼ 5.5 in healthy skin to pH > 7 in an infected wound, Rif-AUA-PSI nanoparticles begin to decompose and release Rif upon the hydrolysis of succinimide/amide and deprotonation of carboxyl groups. The effective suppression of bacterial growth by Rif-AUA-PSI nanoparticles was demonstrated using a plate count method. More importantly, Rif-AUA-PSI nanoparticles were physically deposited on cotton gauze bandages as an antibiotic wound dressing. The Rif-AUA-PSI-modified gauze was applied to infected wounds on rats for wound management. The results show fast wound healing and inhibition of bacterial growth, which demonstrate that the method promotes modulable amphiphilicity, biodegradability, biocompatibility, pH-responsiveness, and facile modification for nanomedicine and medical devices.
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Affiliation(s)
- Dieu-Linh Lam
- Department of Chemical and Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Ying-Tzu Cheng
- Department of Chemical and Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Chun-Jen Huang
- Department of Chemical and Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung Pei Rd., Chung-Li City 32023, Taiwan
- NCU-Covestro Research Center, National Central University, Jhong-Li, Taoyuan 320, Taiwan
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8
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Liu L, Peng M, Liang Z, Wu H, Yan H, Zhou YG. Sensitive quantification of mercury ions in real water systems based on an aggregation-collision electrochemical detection. Anal Chim Acta 2023; 1276:341638. [PMID: 37573116 DOI: 10.1016/j.aca.2023.341638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/04/2023] [Accepted: 07/17/2023] [Indexed: 08/14/2023]
Abstract
Nanoparticle impact electrochemistry (NIE) is an emerging electroanalytical technique that has been utilized to the sensitive detection of a wide range of biological species. So far, the NIE based trace ion detection is largely unexplored due to the lack of effective signal amplification strategies. We herein develop an NIE-based electrochemical sensing platform that utilizes T-Hg2+-T coordination induced AgNP aggregation to detect Hg2+ in aqueous solution. The proposed aggregation-collision strategy enables highly sensitive and selective detection. A dual-mode analysis based on the change in impact frequency and oxidative charge of the anodic oxidation of the AgNPs in NIE allows for more accurate self-validated quantification. Furthermore, the current NIE-based sensor demonstrates reliable analysis of Hg2+ of real water samples, showing great potential for practical environmental monitoring and point-of-care testing (POCT) applications.
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Affiliation(s)
- Lizhen Liu
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemical/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China; Greater Bay Area Institute for Innovation, Hunan University, Guangzhou, 511300, Guangdong Province, China
| | - Meihong Peng
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemical/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China; Greater Bay Area Institute for Innovation, Hunan University, Guangzhou, 511300, Guangdong Province, China
| | - Zerong Liang
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemical/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China; Greater Bay Area Institute for Innovation, Hunan University, Guangzhou, 511300, Guangdong Province, China
| | - Hong Wu
- Department of Otorhinolaryngology, Xiangya Hospital, Central South University, Changsha, 410000, China.
| | - Hailong Yan
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemical/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Yi-Ge Zhou
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemical/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China; Greater Bay Area Institute for Innovation, Hunan University, Guangzhou, 511300, Guangdong Province, China.
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9
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Li B, Wang H, Xu J, Qu W, Yao L, Yao B, Yan C, Chen W. Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Stark MC, Joubert AM, Visagie MH. Molecular Farming of Pembrolizumab and Nivolumab. Int J Mol Sci 2023; 24:10045. [PMID: 37373192 DOI: 10.3390/ijms241210045] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) are a class of immunotherapy agents capable of alleviating the immunosuppressive effects exerted by tumorigenic cells. The programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) immune checkpoint is one of the most ubiquitous checkpoints utilized by tumorigenic cells for immune evasion by inducing apoptosis and inhibiting the proliferation and cytokine production of T lymphocytes. Currently, the most frequently used ICIs targeting the PD-1/PD-L1 checkpoint include monoclonal antibodies (mAbs) pembrolizumab and nivolumab that bind to PD-1 on T lymphocytes and inhibit interaction with PD-L1 on tumorigenic cells. However, pembrolizumab and nivolumab are costly, and thus their accessibility is limited in low- and middle-income countries (LMICs). Therefore, it is essential to develop novel biomanufacturing platforms capable of reducing the cost of these two therapies. Molecular farming is one such platform utilizing plants for mAb production, and it has been demonstrated to be a rapid, low-cost, and scalable platform that can be potentially implemented in LMICs to diminish the exorbitant prices, ultimately leading to a significant reduction in cancer-related mortalities within these countries.
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Affiliation(s)
- Michael C Stark
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Pretoria 0031, South Africa
| | - Anna M Joubert
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Pretoria 0031, South Africa
| | - Michelle H Visagie
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Pretoria 0031, South Africa
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Duya CO, Okumu FO, Matoetoe MC. Impedimetric nano-collision Escherichia coli analysis based on Silver-Gold bimetallic nanoparticles. Bioelectrochemistry 2023; 151:108403. [PMID: 36848817 DOI: 10.1016/j.bioelechem.2023.108403] [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: 10/17/2022] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023]
Abstract
An impedimetric detection of E. coli was developed using chemically synthesised bimetallic Ag-Au (1:2) nanoparticles (NPs). The UV-visible spectra of the NPs had absorption bands at 470 and 580 nm for Ag NPs and Au NPs, respectively. In the presence of E. coli, a negative potential shift and a blue shift was observed in the voltammograms and spectra respectively. The complex formed had an oxidation potential at + 0.95 V. Technique choice was based on sensitivity comparison of Differential pulse voltammetry, cyclic voltammetry and impedance spectroscopy in 0.1 M PBS with Impedance being the best choice. Optimum sensing conditions of the NPs-E. coli complex for NPs concentration, incubation period, method modulation amplitude and applied potential were 5 mM, 20 min, 10 mV and + 0.5 V, respectively. The sensor's linearity range, lower limits of detection and quantification were found to be 101-107, 1.88 × 101, 2.34 × 102 cells/mL, respectively. The sensor's applicability was validated by repeatability, stability and selectivity studies showing minimum changes in signal. Potential usage of the sensor in real samples was demonstrated by standard addition analysis of sea and River water samples as well as recovery of spiked water and fruit juices with acceptable % RSD < 2%.
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Affiliation(s)
- C O Duya
- Department of Chemistry, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, South Africa
| | - F O Okumu
- Department of Physical Sciences, Jaramogi Oginga Odinga University of Science and Technology, P. O. Box 210, 40601, Bondo, Kenya
| | - M C Matoetoe
- Department of Chemistry, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, South Africa.
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12
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Trends in single-impact electrochemistry for bacteria analysis. Anal Bioanal Chem 2023:10.1007/s00216-023-04568-z. [PMID: 36754873 DOI: 10.1007/s00216-023-04568-z] [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: 12/14/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 02/10/2023]
Abstract
Single-impact electrochemistry for the analysis of bacteria is a powerful technique for biosensing applications at the single-cell scale. The sensitivity of this electro-analytical method has been widely demonstrated based on chronoamperometric measurements at an ultramicroelectrode polarized at the appropriate potential of redox species in solution. Furthermore, the most recent studies display a continuous improvement in the ability of this sensitive electrochemical method to identify different bacterial strains with better selectivity. To achieve this, several strategies, such as the presence of a redox mediator, have been investigated for detecting and identifying the bacterial cell through its own electrochemical behavior. Both the blocking electrochemical impacts method and electrochemical collisions of single bacteria with a redox mediator are reported in this review and discussed through relevant examples. An original sensing strategy for virulence factors originating from pathogenic bacteria is also presented, based on a recent proof of concept dealing with redox liposome single-impact electrochemistry. The limitations, applications, perspectives, and challenges of single-impact electrochemistry for bacteria analysis are briefly discussed, based on the most significant published data.
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13
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Zhang JH, Liu M, Zhou F, Yan HL, Zhou YG. Homogeneous Electrochemical Immunoassay Using an Aggregation-Collision Strategy for Alpha-Fetoprotein Detection. Anal Chem 2023; 95:3045-3053. [PMID: 36692355 DOI: 10.1021/acs.analchem.2c05193] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Homogeneous immunoassays represent an attractive alternative to traditional heterogeneous assays due to their simplicity and high efficiency. Homogeneous electrochemical assays, however, are not commonly accessed due to the requirement of electrode immobilization of the recognition elements. Herein, we demonstrate a new homogeneous electrochemical immunoassay based on the aggregation-collision strategy for the quantification of tumor protein biomarker alpha-fetoprotein (AFP). The detection principle relies on the aggregation of AgNPs induced by the molecular biorecognition between AFP and AgNPs-anti-AFP probes, which leads to an increased AgNP size and decreased AgNP concentration, allowing an accurate self-validated dual-mode immunoassay by performing nanoimpact electrochemistry (NIE) of the oxidation of AgNPs. The intrinsic one-by-one analytical capability of NIE as well as the participation of all of the atoms of the AgNPs in signal transduction greatly elevates the detection sensitivity. Accordingly, the current sensor enables a limit of detection (LOD) of 5 pg/mL for AFP analysis with high specificity and efficiency. More importantly, reliable detection of AFP in diluted human sera of hepatocellular carcinoma (HCC) patients is successfully achieved, indicating that the NIE-based homogeneous immunoassay shows great potential in HCC liquid biopsy.
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Affiliation(s)
- Jian-Hua Zhang
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.,School of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, Shandong, China
| | - Meijuan Liu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Feng Zhou
- Personalized Prescribing Inc., Suite 500, 150 Ferrand Dr, Toronto, Ontario M3C 3E5, Canada
| | - Hai-Long Yan
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yi-Ge Zhou
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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14
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Smida H, Lefèvre F, Thobie‐Gautier C, Boujtita M, Paquete CM, Lebègue E. Single Electrochemical Impacts of
Shewanella oneidensis
MR‐1 Bacteria for Living Cells Adsorption onto a Polarized Ultramicroelectrode Surface. ChemElectroChem 2022. [DOI: 10.1002/celc.202200906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hassiba Smida
- Nantes Université CNRS CEISAM UMR 6230 F-44000 Nantes France
| | | | | | | | - Catarina M. Paquete
- Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de Lisboa Av. da República 2780-156 Oeiras Portugal
| | - Estelle Lebègue
- Nantes Université CNRS CEISAM UMR 6230 F-44000 Nantes France
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15
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Molina BG, Vasani RB, Jarvis KL, Armelin E, Voelcker NH, Alemán C. Dual pH- and electro-responsive antibiotic-loaded polymeric platforms for effective bacterial detection and elimination. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Wang K, Lin X, Zhang M, Li Y, Luo C, Wu J. Review of Electrochemical Biosensors for Food Safety Detection. BIOSENSORS 2022; 12:bios12110959. [PMID: 36354467 PMCID: PMC9688552 DOI: 10.3390/bios12110959] [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: 09/30/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 05/30/2023]
Abstract
Food safety issues are directly related to people's quality of life, so there is a need to develop efficient and reliable food contaminants' detection devices to ensure the safety and quality of food. Electrochemical biosensors have the significant advantages of miniaturization, low cost, high sensitivity, high selectivity, rapid detection, and low detection limits using small amounts of samples, which are expected to enable on-site analysis of food products. In this paper, the latest electrochemical biosensors for the detection of biological contaminants, chemical contaminants, and genetically modified crops are reviewed based on the analytes of interest, electrode materials and modification methods, electrochemical methods, and detection limits. This review shows that electrochemical biosensors are poised to provide miniaturized, specific, selective, fast detection, and high-sensitivity sensor platforms for food safety.
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Affiliation(s)
- Ke Wang
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing 400044, China
| | - Xiaogang Lin
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing 400044, China
| | - Maoxiao Zhang
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing 400044, China
| | - Yu Li
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing 400044, China
| | - Chunfeng Luo
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing 400044, China
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA
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17
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Li J, Liang X, Zhong R, Liu M, Liu X, Yan HL, Zhou YG. Clinically Applicable Homogeneous Assay for Serological Diagnosis of Alpha-Fetoprotein by Impact Electrochemistry. ACS Sens 2022; 7:3216-3222. [PMID: 36240195 DOI: 10.1021/acssensors.2c01887] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Tumor protein quantification with high specificity, sensitivity, and efficiency is of great significance to enable early diagnosis and effective treatment. The existing methods for protein analysis usually suffer from high cost, time-consuming operation, and insufficient sensitivity, making them not clinically friendly. In this work, a label-free homogeneous sensor based on the nano-impact electroanalytic (NIE) technique was proposed for the detection of tumor protein marker alpha-fetoprotein (AFP). The detection principle is based on the recovery of current of single PtNP catalyzed hydrazine oxidation due to the release of the pre-adsorbed passivating aptamers on PtNPs from the competition of the stronger binding between the specific interaction of the AFP aptamer and AFP. The intrinsic one-by-one analytical ability of NIE allows highly sensitive detection, which can be further improved by reducing the reaction/incubation volume. Meanwhile, the current sensor avoids a laborious labeling procedure as well as the separation and washing steps due to the in situ characteristic of NIE. Accordingly, the current sensor enables efficient, highly sensitive, and specific AFP analysis. More importantly, the reliable detection of AFP in diluted real sera from hepatocellular carcinoma (HCC) patients is successfully achieved, indicating that the impact electrochemistry-based sensing platform has great potential to be applied in point-of-care devices for HCC liquid biopsy.
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Affiliation(s)
- Jiebin Li
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China.,College of Biology, Hunan University, Changsha410082, P. R. China
| | - Xianghui Liang
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha410008, P. R. China
| | - Rui Zhong
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
| | - Meijuan Liu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
| | - Xuan Liu
- Research Center, Affiliated Nanjing Hospital of Nanjing University of Chinese Medicine, Nanjing210003, P. R. China
| | - Hai-Long Yan
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
| | - Yi-Ge Zhou
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
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18
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Cao Z, Li C, Yang X, Wang S, Zhang X, Zhao C, Xue B, Gao C, Zhou H, Yang Y, Shen Z, Sun F, Wang J, Qiu Z. Rapid Quantitative Detection of Live Escherichia coli Based on Chronoamperometry. BIOSENSORS 2022; 12:bios12100845. [PMID: 36290982 PMCID: PMC9599875 DOI: 10.3390/bios12100845] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/27/2022] [Accepted: 09/27/2022] [Indexed: 05/31/2023]
Abstract
The rapid quantitative detection of Escherichia coli (E. coli) is of great significance for evaluating water and food safety. At present, the conventional bacteria detection methods cannot meet the requirements of rapid detection in water environments. Herein, we report a method based on chronoamperometry to rapidly and quantitatively detect live E. coli. In this study, the current indicator i0 and the electricity indicator A were used to record the cumulative effect of bacteria on an unmodified glassy carbon electrode (GCE) surface during chronoamperometric detection. Through the analysis of influencing factors and morphological characterization, it was proved that the changes of the two set electrochemical indicator signals had a good correlation with the concentration of E. coli; detection time was less than 5 min, the detection range of E. coli was 104−108 CFU/mL, and the error range was <30%. The results of parallel experiments and spiking experiments showed that this method had good repeatability, stability, and sensitivity. Humic acid and dead cells did not affect the detection results. This study not only developed a rapid quantitative detection method for E. coli in the laboratory, but also realized a bacterial detection scheme based on the theory of bacterial dissolution and adsorption for the first time, providing a new direction and theoretical basis for the development of electrochemical biosensors in the future.
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Affiliation(s)
- Zhuosong Cao
- School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710600, China
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Chenyu Li
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Xiaobo Yang
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Shang Wang
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Xi Zhang
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Chen Zhao
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Bin Xue
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Chao Gao
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
| | - Hongrui Zhou
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Yutong Yang
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Zhiqiang Shen
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Feilong Sun
- School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710600, China
| | - Jingfeng Wang
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
| | - Zhigang Qiu
- Tianjin Institute of Environmental Medicine and Operational Medicine, Tianjin 300050, China
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19
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Chen Y, Liu Y, Wang D, Gao G, Zhi J. Three-Mediator Enhanced Collisions on an Ultramicroelectrode for Selective Identification of Single Saccharomyces cerevisiae. Anal Chem 2022; 94:12630-12637. [PMID: 36068505 DOI: 10.1021/acs.analchem.2c01406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Selective detection of colliding entities, especially cells and microbes, is of great challenge in single-entity electrochemistry. Herein, based on the different cellular electron transport pathways between microbes and mediators, we report a three-mediator system [K3Fe(CN)6, K4Fe(CN)6, and menadione] to achieve redox activity analysis and selective identification of single Saccharomyces cerevisiae without the usage of antibodies. K4Fe(CN)6 in the three-mediator system will oxidize near the electrode surface and increase the local concentration of K3Fe(CN)6, which will promote the redox reaction of S. cerevisiae. The hydrophobic mediator─menadione─can selectively penetrate through the S. cerevisiae membrane and get access to its intracellular redox center and can further react with K3Fe(CN)6 in the bulk solution. In contrast, the mediator can only get access to the bacterial membranes of Escherichia coli and Staphylococcus aureus, which results in different electrochemical collision signals between the above microbes. In the three-mediator system, upward step-like collision signals were observed in S. cerevisiae suspension, which are related to their microbial redox activity. In comparison, E. coli or S. aureus only generated downward current steps because the blockage effect of mediator diffusion suppresses their redox activities. When S. cerevisiae co-existed with E. coli or S. aureus, transients generated by both blockage and redox activity were observed. The approach enables us to trace the collision behaviors of different microbes and distinguish their simultaneous collisions, which is the foundation for further application of electrochemical collision technique in the specific identification of single biological entities.
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Affiliation(s)
- Yafei Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.,University of Chinese Academy of Sciences, Beijing.100049, PR China
| | - Yanran Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.,University of Chinese Academy of Sciences, Beijing.100049, PR China
| | - Dengchao Wang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Guanyue Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.,University of Chinese Academy of Sciences, Beijing.100049, PR China
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.,University of Chinese Academy of Sciences, Beijing.100049, PR China
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20
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Weiß LJK, Rinklin P, Thakur B, Music E, Url H, Kopic I, Hoven D, Banzet M, von Trotha T, Mayer D, Wolfrum B. Prototype Digital Lateral Flow Sensor Using Impact Electrochemistry in a Competitive Binding Assay. ACS Sens 2022; 7:1967-1976. [PMID: 35801574 DOI: 10.1021/acssensors.2c00728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work demonstrates a lateral flow assay concept on the basis of stochastic-impact electrochemistry. To this end, we first elucidate requirements to employ silver nanoparticles as redox-active labels. Then, we present a prototype that utilizes nanoimpacts from biotinylated silver nanoparticles as readouts to detect free biotin in solution based on competitive binding. The detection is performed in a membrane-based microfluidic system, where free biotin and biotinylated particles compete for streptavidin immobilized on embedded latex beads. Excess nanoparticles are then registered downstream at an array of detection electrodes. In this way, we establish a proof of concept that serves as a blueprint for future "digital" lateral flow sensors.
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Affiliation(s)
- Lennart J K Weiß
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Philipp Rinklin
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Bhawana Thakur
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Emir Music
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Heike Url
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Inola Kopic
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Darius Hoven
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Marko Banzet
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Tassilo von Trotha
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Dirk Mayer
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Bernhard Wolfrum
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
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21
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Su L, Su Y, Liu B. A ratiometric electrochemical strategy based on Fe (III) and Pt (IV) for immobilization-free detection of Escherichia coli. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2541-2548. [PMID: 35713017 DOI: 10.1039/d2ay00628f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A new ratiometric electrochemical strategy for immobilization-free detection of Escherichia coli (E. coli) was constructed by using a capture DNA-polyaniline/copper ferrite nanoparticles/graphene oxide (cDNA-PANI/CuFe2O4/GO) composite as capture probes, which has a high specific surface area and good magnetic properties. Then trigger DNA/Au nanoparticles (tDNA/Au NPs) were used as signal amplification labels, and Pt (IV) and Fe (III) were chosen as the signal probes. In the presence of targets, the sandwich format among cDNA-PANI/CuFe2O4/GO, E. coli and auxiliary DNA (aDNA) was realized by using the aptamer recognition system. Then, the tDNA/Au binding could be anchored on the sandwich format due to the principle of base complementation between unpaired aDNA and tDNA. And the unbounded tDNA of tDNA/Au NPs could bind an amount of Pt (IV). After separation using a magnet, a handful of unbound Pt (IV) which remained in the supernatant reacted with a large number of Fe (III) ions, leading to a markedly increased IFe(III)/IPt(IV) value. Oppositely, the sandwich format could not appear in the absence of targets, and even the tDNA/Au could not be immobilized on it. So, the redox reaction between a large amount of Pt (IV) residue in the supernatant and Fe (III) was significantly successful, causing a low IFe(III)/IPt(IV) value. Under optimal conditions, we found that IFe(III)/IPt(IV) was linearly related to the logarithmic E. coli concentration with a low limit of detection (1.862 × 103 cfu mL-1). This devised ratiometric electrochemical method may develop into a powerful and effective means for the detection of E. coli in real samples, which may also be developed as a universal tool for another microorganism.
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Affiliation(s)
- Lixia Su
- Guizhou Engineering Laboratory for Synthetic Drugs (Ministry of Education of Guizhou Province), College of Pharmacy, Guizhou University, Guiyang 550025, China.
| | - Yonghuan Su
- Guizhou Engineering Laboratory for Synthetic Drugs (Ministry of Education of Guizhou Province), College of Pharmacy, Guizhou University, Guiyang 550025, China.
| | - Bingqian Liu
- Guizhou Engineering Laboratory for Synthetic Drugs (Ministry of Education of Guizhou Province), College of Pharmacy, Guizhou University, Guiyang 550025, China.
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22
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Kim SD, Park JH, Ahn H, Lee J, Shin CH, Jang WD, Kim BK, Ahn HS. The discrete single-entity electrochemistry of Pickering emulsions. NANOSCALE 2022; 14:6981-6989. [PMID: 35470845 DOI: 10.1039/d2nr01098d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Single-entity analysis is an important research topic in electrochemistry. To date, electrode collisions and subsequent electrode-particle interactions have been studied for many types of nano-objects, including metals, polymers, and micelles. Here we extend this nano-object electrochemistry analysis to Pickering emulsions for the first time. The electrochemistry of Pickering emulsions is important because the internal space of a Pickering emulsion can serve as a reactor or template; this leads to myriad possible applications, all the while maintaining mechanical stability far superior to what is exhibited by conventional emulsions. This work showed that Pickering emulsions exhibit similar hydrodynamic behavior to other nano-objects, despite the complex structure involving hard nanoparticle surfactants, and the electron-transport mechanism into the internal volume of Pickering emulsions was elucidated. The Pickering emulsion electrochemistry platform developed here can be applied to electrochemical nanomaterial synthesis, surmounting the challenges faced by conventional synthetic strategies involving normal emulsions.
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Affiliation(s)
- So Dam Kim
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Joon Ho Park
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Hyokyum Ahn
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Jeeho Lee
- Department of Chemistry, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Chan-Ho Shin
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Woo-Dong Jang
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Byung-Kwon Kim
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea.
| | - Hyun S Ahn
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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23
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Pandey P, Bhattarai N, Su L, Wang X, Leng F, Gerst-man B, Chapagain PP, He J. Detecting Individual Proteins and Their Surface Charge Variations in Solution by the Potentiometric Nanoimpact Method. ACS Sens 2022; 7:555-563. [PMID: 35060380 PMCID: PMC10631516 DOI: 10.1021/acssensors.1c02385] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Label-free detection and analysis of proteins in their natural form and their dynamic interactions with substrates at the single-molecule level are important for both fundamental studies and various applications. Herein, we demonstrate a simple potentiometric method to achieve this goal by detecting the native charge of protein in solution by utilizing the principle of single-entity electrochemistry techniques. When a charged protein moves near the vicinity of a floating carbon nanoelectrode connected to a high-impedance voltage meter, the distinct local electrostatic potential changes induced by the transient collision event of protein, also called the "nanoimpact" event, can be captured by the nanoelectrode as a potential probe. This potentiometric method is highly sensitive for charged proteins, and low-molecular-weight proteins less than 10 kDa can be detected in low-salt-concentration electrolytes. By analyzing the shape and magnitude of the recorded time-resolved potential change and its time derivative, we can reveal the charge and motion of the protein in the nonspecific protein-surface interaction event. The charge polarity variations of the proteins at different pH values were also successfully probed. Compared with synthetic spherical nanoparticles, the statistical analysis of many single-molecule nanoimpact events revealed a large variation in the recorded transient potential signals, which may be attributed to the intrinsic protein dynamics and surface charge heterogeneity, as suggested by the finite element method and molecular dynamic simulations.
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Affiliation(s)
- Popular Pandey
- Physics Department, Florida International University, Miami, Florida, 33199, USA
| | - Nisha Bhattarai
- Physics Department, Florida International University, Miami, Florida, 33199, USA
| | - Linjia Su
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida, 33199, USA
| | - Xuewen Wang
- Physics Department, Florida International University, Miami, Florida, 33199, USA
| | - Fenfei Leng
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida, 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, Florida, 33199, USA
| | - Bernard Gerst-man
- Physics Department, Florida International University, Miami, Florida, 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, Florida, 33199, USA
| | - Prem P. Chapagain
- Physics Department, Florida International University, Miami, Florida, 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, Florida, 33199, USA
| | - Jin He
- Physics Department, Florida International University, Miami, Florida, 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, Florida, 33199, USA
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24
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Electrochemical Sensors for Antibiotic Susceptibility Testing: Strategies and Applications. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10020053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Increasing awareness of the impacts of infectious diseases has driven the development of advanced techniques for detecting pathogens in clinical and environmental settings. However, this process is hindered by the complexity and variability inherent in antibiotic-resistant species. A great deal of effort has been put into the development of antibiotic-resistance/susceptibility testing (AST) sensors and systems to administer proper drugs for patient-tailored therapy. Electrochemical sensors have garnered increasing attention due to their powerful potential to allow rapid, sensitive, and real-time monitoring, alongside the low-cost production, feasibility of minimization, and easy integration with other techniques. This review focuses on the recent advances in electrochemical sensing strategies that have been used to determine the level of antibiotic resistance/susceptibility of pathogenic bacteria. The recent examples of the current electrochemical AST sensors discussed here are classified into four categories according to what is detected and quantitated: the presence of antibiotic-resistant genes, changes in impedance caused by cell lysis, current response caused by changes in cellular membrane properties, and changes in the redox state of redox molecules. It also discusses potential strategies for the development of electrochemical AST sensors, with the goal of broadening their practical applications across various scientific and technological fields.
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25
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Sundaresan V, Do H, Shrout JD, Bohn PW. Electrochemical and spectroelectrochemical characterization of bacteria and bacterial systems. Analyst 2021; 147:22-34. [PMID: 34874024 PMCID: PMC8791413 DOI: 10.1039/d1an01954f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Microbes, such as bacteria, can be described, at one level, as small, self-sustaining chemical factories. Based on the species, strain, and even the environment, bacteria can be useful, neutral or pathogenic to human life, so it is increasingly important that we be able to characterize them at the molecular level with chemical specificity and spatial and temporal resolution in order to understand their behavior. Bacterial metabolism involves a large number of internal and external electron transfer processes, so it is logical that electrochemical techniques have been employed to investigate these bacterial metabolites. In this mini-review, we focus on electrochemical and spectroelectrochemical methods that have been developed and used specifically to chemically characterize bacteria and their behavior. First, we discuss the latest mechanistic insights and current understanding of microbial electron transfer, including both direct and mediated electron transfer. Second, we summarize progress on approaches to spatiotemporal characterization of secreted factors, including both metabolites and signaling molecules, which can be used to discern how natural or external factors can alter metabolic states of bacterial cells and change either their individual or collective behavior. Finally, we address in situ methods of single-cell characterization, which can uncover how heterogeneity in cell behavior is reflected in the behavior and properties of collections of bacteria, e.g. bacterial communities. Recent advances in (spectro)electrochemical characterization of bacteria have yielded important new insights both at the ensemble and the single-entity levels, which are furthering our understanding of bacterial behavior. These insights, in turn, promise to benefit applications ranging from biosensors to the use of bacteria in bacteria-based bioenergy generation and storage.
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Affiliation(s)
- Vignesh Sundaresan
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Hyein Do
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Joshua D Shrout
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN 46556, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Paul W Bohn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA.
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
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Andersen CL, Lacerda EG, Christensen JB, Sauer SPA, Hammerich O. Prediction of the standard potentials for one-electron oxidation of N, N, N', N' tetrasubstituted p-phenylenediamines by calculation. Phys Chem Chem Phys 2021; 23:20340-20351. [PMID: 34486635 DOI: 10.1039/d1cp02315b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The formal potentials for the reversible one-electron oxidation of N,N,N',N' tetrasubstituted p-phenylenediamines in acetonitrile have been applied as a test set for benchmarking computational methods for a series of compounds with only small structural differences. The aim of the study is to propose a simple method for calculating the standard oxidation potentials, and therefore, the protocol is progressively developed by adding more terms in the energy expression. In addition, the effect of including implicit solvation models (IEFPCM, CPCM, and SMD), larger basis sets, and correlation methods are investigated. The oxidation potentials calculated using the G3MP2B3 approach with IEFPCM resulted in the best fit (R2 = 0.9624), but the slope of the correlation line, 0.74, is far from the optimal value, 1.00. B3LYP/6-311++G(d,p) and TPSSh/6-311++G(2d,p) yielded only slightly less consistent data (R2 = 0.9388 and R2 = 0.9425), but with much better slopes, 1.00 and 0.94, respectively. We conclude that it is important to investigate the basis set size and treatment of electron correlation when calculating oxidation potentials for N,N,N',N' tetrasubstituted p-phenylenediamines.
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Affiliation(s)
- Cecilie L Andersen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Evanildo G Lacerda
- Instituto de Física da Universidade de São Paulo, Rua do Matão 1371, 05508-090 São Paulo, SP, Brazil
| | - Jørn B Christensen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Stephan P A Sauer
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Ole Hammerich
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
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Miguéis SDC, Tavares APM, Martins GV, Frasco MF, Sales MGF. Biosensors for European Zoonotic Agents: A Current Portuguese Perspective. SENSORS (BASEL, SWITZERLAND) 2021; 21:4547. [PMID: 34283108 PMCID: PMC8271446 DOI: 10.3390/s21134547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 06/20/2021] [Accepted: 06/25/2021] [Indexed: 01/24/2023]
Abstract
Emerging and recurrent outbreaks caused by zoonotic agents pose a public health risk. They result in morbidity and mortality in humans and significant losses in the livestock and food industries. This highlights the need for rapid surveillance methods. Despite the high reliability of conventional pathogen detection methods, they have high detection limits and are time-consuming and not suitable for on-site analysis. Furthermore, the unpredictable spread of zoonotic infections due to a complex combination of risk factors urges the development of innovative technologies to overcome current limitations in early warning and detection. Biosensing, in particular, is highlighted here, as it offers rapid and cost-effective devices for use at the site of infection while increasing the sensitivity of detection. Portuguese research in biosensors for zoonotic pathogens is the focus of this review. This branch of research produces exciting and innovative devices for the study of the most widespread pathogenic bacteria. The studies presented here relate to the different classes of pathogens whose characteristics and routes of infection are also described. Many advances have been made in recent years, and Portuguese research teams have increased publications in this field. However, biosensing still needs to be extended to other pathogens, including potentially pandemic viruses. In addition, the use of biosensors as part of routine diagnostics in hospitals for humans, in animal infections for veterinary medicine, and food control has not yet been achieved. Therefore, a convergence of Portuguese efforts with global studies on biosensors to control emerging zoonotic diseases is foreseen for the future.
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Affiliation(s)
- Samuel da Costa Miguéis
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- Centro de Investigação Desenvolvimento e Inovação da Academia Militar, Academia Militar, Instituto Universitário Militar, 1169-203 Lisboa, Portugal
| | - Ana P. M. Tavares
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Gabriela V. Martins
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Manuela F. Frasco
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Maria Goreti Ferreira Sales
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
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Zhao H, Ma J, Zuo X, Li F. Electrochemical Analysis for Multiscale Single Entities on the Confined Interface
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000722] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Haipei Zhao
- School of Chemistry and Chemical Engineering, and Institute of Translational Medicine Shanghai Jiao Tong University Shanghai 200240 China
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Jinliang Ma
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Xiaolei Zuo
- School of Chemistry and Chemical Engineering, and Institute of Translational Medicine Shanghai Jiao Tong University Shanghai 200240 China
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Fan Li
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
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Li C, Sun F. Graphene-Assisted Sensor for Rapid Detection of Antibiotic Resistance in Escherichia coli. Front Chem 2021; 9:696906. [PMID: 34136468 PMCID: PMC8201492 DOI: 10.3389/fchem.2021.696906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
In recent years, antibiotic-resistant bacteria caused by antibiotic abuse in the medical industry have become a new environmental pollutant that endangers public health. Therefore, it is necessary to establish a detection method for evaluating drug-resistant bacteria. In this work, we used Escherichia coli as a target model and proposed a method to evaluate its drug resistance for three antibiotics. Graphene dispersion was used to co-mix with E. coli cells for the purpose of increasing the current signal. This electrochemical-based sensor allows the evaluation of the activity of E. coli on the electrode surface. When antibiotics were present, the electrocatalytic reduction signal was diminished because of the reduced activity of E. coli. Based on the difference in the electrochemical reduction signal, we can evaluate the antibiotic resistance of different E. coli strains.
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Affiliation(s)
- Chunlei Li
- Department of Gastroenterology, Jiaozhou Central Hospital, Jiaozhou, China
| | - Feng Sun
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
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Zhao Y, Bu S, Wang C, Ma C, Li Z, Zhang W, Wan J. Dual Aptamer-Copper (II) Phosphate Nanocomposite-Based Point-of-Care Biosensor for the Determination of Escherichia coli O157:H7 through Pressure Monitoring with a Hand-Held Barometer. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1817059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yinghao Zhao
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Shengjun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyou Ma
- College of Geo-Exploration Science and Technology, Jilin University, Changchun, China
| | - Zhongyi Li
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Wenhui Zhang
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
| | - Jiayu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
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Abstract
Bacterial infections are urgent threats to human health, especially in light of rising rates of antibiotic resistance, and their ubiquity demands the development of efficient diagnostic platforms. Electrochemical biosensors for point-of-care testing are garnering interest due to their speed, sensitivity, and selectivity as well as their inexpensive, user-friendly operation. These biosensors have the potential to make significant commercial and clinical impacts. In this Viewpoint, we discuss recent advances in the electrochemical detection of pathogenic bacteria using both direct and alternating current. We focus on platforms that detect whole microbes, as these sensors are specific, fast, and easy to operate.
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Affiliation(s)
- Amruta A. Karbelkar
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ariel L. Furst
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Parlak O, Richter-Dahlfors A. Bacterial Sensing and Biofilm Monitoring for Infection Diagnostics. Macromol Biosci 2020; 20:e2000129. [PMID: 32588553 DOI: 10.1002/mabi.202000129] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/01/2020] [Indexed: 12/21/2022]
Abstract
Recent insights into the rapidly emerging field of bacterial sensing and biofilm monitoring for infection diagnostics are discussed as well as recent key developments and emerging technologies in the field. Electrochemical sensing of bacteria and bacterial biofilm via synthetic, natural, and engineered recognition, as well as direct redox-sensing approaches via algorithm-based optical sensing, and tailor-made optotracing technology are discussed. These technologies are highlighted to answer the very critical question: "how can fast and accurate bacterial sensing and biofilm monitoring be achieved? Following on from that: "how can these different sensing concepts be translated for use in infection diagnostics? A central obstacle to this transformation is the absence of direct and fast analysis methods that provide high-throughput results and bio-interfaces that can control and regulate the means of communication between biological and electronic systems. Here, the overall progress made to date in building such translational efforts at the level of an individual bacterial cell to a bacterial community is discussed.
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Affiliation(s)
- Onur Parlak
- AIMES-Center for the Advancement of Integrated Medical and Engineering Science, Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, SE-171 77, Sweden.,Department of Neuroscience, Karolinska Institutet, Stockholm, SE-171 77, Sweden
| | - Agneta Richter-Dahlfors
- AIMES-Center for the Advancement of Integrated Medical and Engineering Science, Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, SE-171 77, Sweden.,Department of Neuroscience, Karolinska Institutet, Stockholm, SE-171 77, Sweden.,Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
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Razmi N, Hasanzadeh M, Willander M, Nur O. Recent Progress on the Electrochemical Biosensing of Escherichia coli O157:H7: Material and Methods Overview. BIOSENSORS 2020; 10:E54. [PMID: 32443629 PMCID: PMC7277213 DOI: 10.3390/bios10050054] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 01/21/2023]
Abstract
Escherichia coli O157:H7 (E. coli O157:H7) is a pathogenic strain of Escherichia coli which has issued as a public health threat because of fatal contamination of food and water. Therefore, accurate detection of pathogenic E. coli is important in environmental and food quality monitoring. In spite of their advantages and high acceptance, culture-based methods, enzyme-linked immunosorbent assays (ELISAs), polymerase chain reaction (PCR), flow cytometry, ATP bioluminescence, and solid-phase cytometry have various drawbacks, including being time-consuming, requiring trained technicians and/or specific equipment, and producing biological waste. Therefore, there is necessity for affordable, rapid, and simple approaches. Electrochemical biosensors have shown great promise for rapid food- and water-borne pathogen detection. Over the last decade, various attempts have been made to develop techniques for the rapid quantification of E. coli O157:H7. This review covers the importance of E. coli O157:H7 and recent progress (from 2015 to 2020) in the development of the sensitivity and selectivity of electrochemical sensors developed for E. coli O157:H7 using different nanomaterials, labels, and electrochemical transducers.
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Affiliation(s)
- Nasrin Razmi
- Physics and Electronics, Department of Sciences and Technology, Linköping University, SE-601 74 Norrköping, Sweden;
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz 51664, Iran;
| | - Magnus Willander
- Physics and Electronics, Department of Sciences and Technology, Linköping University, SE-601 74 Norrköping, Sweden;
| | - Omer Nur
- Physics and Electronics, Department of Sciences and Technology, Linköping University, SE-601 74 Norrköping, Sweden;
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Emerging electrochemical biosensing approaches for detection of Listeria monocytogenes in food samples: An overview. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.03.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Simoska O, Stevenson KJ. Electrochemical sensors for rapid diagnosis of pathogens in real time. Analyst 2020; 144:6461-6478. [PMID: 31603150 DOI: 10.1039/c9an01747j] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Microbial infections remain the principal cause for high morbidity and mortality rates. While approximately 1400 human pathogens have been recognized, the majority of healthcare-associated infectious diseases are caused by only a few opportunistic pathogens (e.g., Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli), which are associated with increased antibiotic and antimicrobial resistance. Rapid detection, reliable identification and real-time monitoring of these pathogens remain not only a scientific problem but also a practical challenge of vast importance, especially in tailoring effective treatment strategies. Although the development of vaccinations and antibacterial drug treatments are the leading research, progress, and implementation of early warning, quantitative systems indicative of confirming pathogen presence are necessary. Over the years, various approaches, such as conventional culturing, straining, molecular methods (e.g., polymerase chain reaction and immunological assays), microscopy-based and mass spectrometry techniques, have been employed to identify and quantify pathogenic agents. While being sensitive in some cases, these procedures are costly, time-consuming, mostly qualitative, and are indirect detection methods. A great challenge is therefore to develop rapid, highly sensitive, specific devices with adequate figures of merit to corroborate the presence of microbes and enable dynamic real-time measurements of metabolism. As an alternative, electrochemical sensor platforms have been developed as powerful quantitative tools for label-free detection of infection-related biomarkers with high sensitivity. This minireview is focused on the latest electrochemical-based approaches for pathogen sensing, putting them into the context of standard sensing methods, such as cell culturing, mass spectrometry, and fluorescent-based approaches. Description of the latest, impactful electrochemical sensors for pathogen detection will be presented. Recent breakthroughs will be highlighted, including the use of micro- and nano-electrode arrays for real-time detection of bacteria in polymicrobial infections and microfluidic devices for pathogen separation analysis. We will conclude with perspectives and outlooks to understand shortcomings in designing future sensing schemes. The need for high sensitivity and selectivity, low-cost implementation, fast detection, and screening increases provides an impetus for further development in electrochemical detectors for microorganisms and biologically relevant targets.
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Affiliation(s)
- Olja Simoska
- Department of Chemistry, University of Texas at Austin, 1 University Station, Stop A5300, Austin, TX 78712, USA
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Nguyen THT, Lee J, Kim HY, Nam KM, Kim BK. Current research on single-entity electrochemistry for soft nanoparticle detection: Introduction to detection methods and applications. Biosens Bioelectron 2020; 151:111999. [DOI: 10.1016/j.bios.2019.111999] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/06/2019] [Accepted: 12/26/2019] [Indexed: 10/25/2022]
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Le H, Kätelhön E, Compton RG. Reversible voltammetry at cylindrical electrodes: Validity of a one-dimensional model. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Pandey P, Garcia J, Guo J, Wang X, Yang D, He J. Differentiation of metallic and dielectric nanoparticles in solution by single-nanoparticle collision events at the nanoelectrode. NANOTECHNOLOGY 2020; 31:015503. [PMID: 31519013 DOI: 10.1088/1361-6528/ab4445] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this work, we demonstrate a highly effective method to generate and detect single-nanoparticle (NP) collision events on a nanoelectrode in aqueous solutions. The nanoelectrode of a nanopore-nanoelectrode nanopipette is first employed to accumulate NPs in solution by dielectrophoresis (DEP). Instead of using amperometric methods, the continuous individual NP collision events on the nanoelectrode are sensitively detected by monitoring the open-circuit potential changes of the nanoelectrode. Metallic gold NPs (GNPs) and insulating polystyrene (PS) NPs with various sizes are used as the model NPs. Due to the higher conductivity and polarizability of GNPs, the collision motion of a GNP is different from that of a PS NP. The difference is distinct in the shape of the transient potential change and its first time derivative detected by the nanoelectrode. Therefore, the collision events by metallic and insulating NPs on a nanoelectrode can be differentiated based on their polarizability. DEP induced NP separation and cluster formation can also be probed in detail in the concentrated mixture of PS NPs and GNPs.
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Affiliation(s)
- Popular Pandey
- Physics Department, biomolecular Science Institute, Florida International University, Miami, 33199, United States of America
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