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Lee SM, Nai YH, Doeven EH, Balakrishnan HK, Yuan D, Guijt RM. Abridged solid-phase extraction with alkaline Poly(ethylene) glycol lysis (ASAP) for direct DNA amplification. Talanta 2024; 266:125006. [PMID: 37572478 DOI: 10.1016/j.talanta.2023.125006] [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: 03/23/2023] [Revised: 07/23/2023] [Accepted: 07/28/2023] [Indexed: 08/14/2023]
Abstract
Complexity of sample preparation decelerate the development of sample-in-answer-out devices for point-of-need nucleic acid amplification testing. Here, we present the consolidation of alkaline poly(ethylene) glycol-based lysis and solid-phase extraction for rapid and simple sample preparation compatible with direct on-bead amplification. Simultaneous cell lysis and binding of DNA were achieved using an optimised reagent comprising 15% PEG8000, 0.5 M NaCl, and 3.5 mM KOH. This was combined with direct, on-bead amplification using 1.5 μg beads per 20 μL PCR reaction mix. The novel single reagent, 5-min method improved the detection limit by 10 and 100-fold compared with commercial DNA extraction kits and the original alkaline PEG lysis method, respectively. The sensitivity can be further enhanced by one amplification cycle with an ethanol wash or by extending the incubation to 10 min before collecting the magnetic particles. Both methods successfully detected a single copy of Escherichia coli DNA. In biological fluids (saliva, sweat, and urine), the 5-min method was delayed by about one cycle compared to the 15-min method. The proposed methods are attractive for incorporation in the workflow for point-of-need testing of biological samples by providing a practical and chemical method for simple alternative DNA sample preparation.
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Affiliation(s)
- Soo Min Lee
- Deakin University, Centre for Rural and Regional Futures (CeRRF), Waurn Ponds, VIC 3216, Australia
| | - Yi H Nai
- Deakin University, Centre for Rural and Regional Futures (CeRRF), Waurn Ponds, VIC 3216, Australia
| | - Egan H Doeven
- Deakin University, Centre for Rural and Regional Futures (CeRRF), Waurn Ponds, VIC 3216, Australia; Deakin University, School of Life and Environmental Sciences, Waurn Ponds, VIC 3216, Australia
| | - Hari Kalathil Balakrishnan
- Deakin University, Centre for Rural and Regional Futures (CeRRF), Waurn Ponds, VIC 3216, Australia; Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Dan Yuan
- Deakin University, Centre for Rural and Regional Futures (CeRRF), Waurn Ponds, VIC 3216, Australia; School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Rosanne M Guijt
- Deakin University, Centre for Rural and Regional Futures (CeRRF), Waurn Ponds, VIC 3216, Australia.
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2
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Koterwa A, Pierpaoli M, Nejman-Faleńczyk B, Bloch S, Zieliński A, Adamus-Białek W, Jeleniewska Z, Trzaskowski B, Bogdanowicz R, Węgrzyn G, Niedziałkowski P, Ryl J. Discriminating macromolecular interactions based on an impedimetric fingerprint supported by multivariate data analysis for rapid and label-free Escherichia coli recognition in human urine. Biosens Bioelectron 2023; 238:115561. [PMID: 37549553 DOI: 10.1016/j.bios.2023.115561] [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: 05/12/2023] [Revised: 07/29/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
This manuscript presents a novel approach to address the challenges of electrode fouling and highly complex electrode nanoarchitecture, which are primary concerns for biosensors operating in real environments. The proposed approach utilizes multiparametric impedance discriminant analysis (MIDA) to obtain a fingerprint of the macromolecular interactions on flat glassy carbon surfaces, achieved through self-organized, drop-cast, receptor-functionalized Au nanocube (AuNC) patterns. Real-time monitoring is combined with singular value decomposition and partial least squares discriminant analysis, which enables selective identification of the analyte from raw impedance data, without the use of electric equivalent circuits. As a proof-of-concept, the authors demonstrate the ability to detect Escherichia coli in real human urine using an aptamer-based biosensor that targets RNA polymerase. This is significant, as uropathogenic E. coli is a difficult-to-treat pathogen that is responsible for the majority of hospital-acquired urinary tract infection cases. The proposed approach offers a limit of detection of 11.3 CFU/mL for the uropathogenic E. coli strain No. 57, an analytical range in all studied concentrations (up to 105 CFU/mL), without the use of antifouling strategies, yet not being specific vs other E.coli strain studied (BL21(DE3)). The MIDA approach allowed to identify negative overpotentials (-0.35 to -0.10 V vs Ag/AgCl) as most suitable for the analysis, offering over 80% sensitivity and accuracy, and the measurement was carried out in just 2 min. Moreover, this approach is scalable and can be applied to other biosensor platforms.
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Affiliation(s)
- Adrian Koterwa
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland.
| | - Mattia Pierpaoli
- Department of Metrology and Optoelectronics, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - Bożena Nejman-Faleńczyk
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Poland.
| | - Sylwia Bloch
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Poland.
| | - Artur Zieliński
- Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - Wioletta Adamus-Białek
- Institute of Medical Sciences, Jan Kochanowski University of Kielce, IX Wieków Kielc 19A, 25-317, Kielce, Poland.
| | - Zofia Jeleniewska
- Division of Electrochemistry and Surface Physical Chemistry, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
| | - Bartosz Trzaskowski
- Centre of New Technologies, University of Warsaw, Banach 2c, 02-097, Warsaw, Poland.
| | - Robert Bogdanowicz
- Department of Metrology and Optoelectronics, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Poland.
| | - Paweł Niedziałkowski
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland.
| | - Jacek Ryl
- Division of Electrochemistry and Surface Physical Chemistry, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
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3
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Zhang X, Hou X, Ma L, Shi Y, Zhang D, Qu K. Analytical methods for assessing antimicrobial activity of nanomaterials in complex media: advances, challenges, and perspectives. J Nanobiotechnology 2023; 21:97. [PMID: 36941596 PMCID: PMC10026445 DOI: 10.1186/s12951-023-01851-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/07/2023] [Indexed: 03/23/2023] Open
Abstract
Assessing the antimicrobial activity of engineered nanomaterials (ENMs), especially in realistic scenarios, is of great significance for both basic research and applications. Multiple analytical methods are available for analysis via off-line or on-line measurements. Real-world samples are often complex with inorganic and organic components, which complicates the measurements of microbial viability and/or metabolic activity. This article highlights the recent advances achieved in analytical methods including typical applications and specifics regarding their accuracy, cost, efficiency, and user-friendliness. Methodological drawbacks, technique gaps, and future perspectives are also discussed. This review aims to help researchers select suitable methods for gaining insight into antimicrobial activities of targeted ENMs in artificial and natural complex matrices.
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Affiliation(s)
- Xuzhi Zhang
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Xiangyi Hou
- School of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Liangyu Ma
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Yaqi Shi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Dahai Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Keming Qu
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
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4
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Showkat I, Khanday FA, Beigh MR. A review of bio-impedance devices. Med Biol Eng Comput 2023; 61:927-950. [PMID: 36637716 DOI: 10.1007/s11517-022-02763-1] [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: 09/19/2022] [Accepted: 12/27/2022] [Indexed: 01/14/2023]
Abstract
Bio-impedance measurement analysis primarily refers to a safe and a non-invasive technique to analyze the electrical changes in living tissues on the application of low-value alternating current. It finds applications both in the biomedical and the agricultural fields. This paper concisely reviews the origin and measurement approaches for concepts and fundamentals of bio-impedance followed by a critical review on bio-impedance portable devices with main emphasis on the embedded system approach which is in demand due to its miniature size and present lifestyle preference of monitoring health in real time. The paper also provides a comprehensive review of various bio-impedance circuits with emphasis on the measurement and calibration techniques.
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Affiliation(s)
- Insha Showkat
- Department of Electronics and Instrumentation Technology, University of Kashmir, Hazratbal, Srinagar, Jammu and Kashmir, India
| | - Farooq A Khanday
- Department of Electronics and Instrumentation Technology, University of Kashmir, Hazratbal, Srinagar, Jammu and Kashmir, India.
| | - M Rafiq Beigh
- Department of Electronics, Govt. Degree College Sumbal, Sumbal, J&K, India
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5
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Preparation of Smart Surfaces Based on PNaSS@PEDOT Microspheres: Testing of E. coli Detection. SENSORS 2022; 22:s22072784. [PMID: 35408397 PMCID: PMC9003540 DOI: 10.3390/s22072784] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 02/06/2023]
Abstract
The main task of the research is to acquire fundamental knowledge about the effect of polymer structure on the physicochemical properties of films. A novel meta-material that can be used in manufacturing sensor layers was developed as a model. At the first stage, poly(sodium 4-styrenesulfonate) (PNaSS) cross-linked microspheres are synthesized (which are based on strong polyelectrolytes containing sulfo groups in each monomer unit), and at the second stage, PNaSS@PEDOT microspheres are formed. The poly(3,4-ethylenedioxythiophene) (PEDOT) shell was obtained by the acid-assisted self-polymerization of the monomer; this process is biologically safe and thus suitable for biomedical applications. The suitability of electrochemical impedance spectroscopy for E. coli detection was tested; it was revealed that the attached bacterial wall was destroyed upon application of constant oxidation potential (higher than 0.5 V), which makes the PNaSS@PEDOT microsphere particles promising materials for the development of antifouling coatings. Furthermore, under open-circuit conditions, the walls of E. coli bacteria were not destroyed, which opens up the possibility of employing such meta-materials as sensor films. Scanning electron microscopy, X-ray photoelectron spectroscopy, water contact angle, and wide-angle X-ray diffraction methods were applied in order to characterize the PNaSS@PEDOT films.
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6
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On-Line Monitoring of Biofilm Accumulation on Graphite-Polypropylene Electrode Material Using a Heat Transfer Sensor. BIOSENSORS 2021; 12:bios12010018. [PMID: 35049646 PMCID: PMC8773567 DOI: 10.3390/bios12010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/18/2021] [Accepted: 12/27/2021] [Indexed: 11/17/2022]
Abstract
Biofilms growing on electrodes are the heart piece of bioelectrochemical systems (BES). Moreover, the biofilm morphology is key for the efficient performance of BES and must be monitored and controlled for a stable operation. For the industrial use of BES (i.e., microbial fuel cells for energy production), monitoring of the biofilm accumulation directly on the electrodes during operation is desirable. In this study a commercially available on-line heat transfer biofilm sensor is applied to a graphite-polypropylene (C-PP) pipe and compared to its standard version where the sensor is applied to a stainless-steel pipe. The aim was to investigate the transferability of the sensor to a carbonaceous material (C-PP), that are preferably used as electrode materials for bioelectrochemical systems, thereby enabling biofilm monitoring directly on the electrode surface. The sensor signal was correlated to the gravimetrically determined biofilm thickness in order to identify the sensitivity of the sensor for the detection and quantification of biofilm on both materials. Results confirmed the transferability of the sensor to the C-PP material, despite the sensor sensitivity being decreased by a factor of approx. 5 compared to the default biofilm sensor applied to a stainless-steel pipe.
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7
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Nikopensius M, Jõgi E, Rinken T. Determination of Uropathogenic Escherichia coli in Urine by an Immunobiosensor Based Upon Antigen-Antibody Biorecognition with Fluorescence Detection and Bead-Injection Analysis. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1982958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Eerik Jõgi
- Institute of Chemistry, University of Tartu, Tartu, Estonia
- Tartu Health Care College, Tartu, Estonia
| | - Toonika Rinken
- Institute of Chemistry, University of Tartu, Tartu, Estonia
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8
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Affordable automated phenotypic antibiotic susceptibility testing method based on a contactless conductometric sensor. Sci Rep 2020; 10:21216. [PMID: 33277561 PMCID: PMC7718250 DOI: 10.1038/s41598-020-77938-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/11/2020] [Indexed: 11/08/2022] Open
Abstract
User-friendly phenotypic antibiotic susceptibility testing (AST) methods are urgently needed in many fields including clinical medicine, epidemiological studies and drug research. Herein, we report a convenient and cost-effective phenotypic AST method based on online monitoring bacterial growth with a developed 8-channel contactless conductometric sensor (CCS). Using E. coli and V. parahaemolyticus as microorganism models, as well as enoxacin, florfenicol, ampicillin, kanamycin and sulfadiazine as antibiotic probes. The minimum inhibitory concentration (MIC) determination was validated in comparison with standard broth microdilution (BMD) assay. The total essential agreements between the CCS AST assays and the reference BMD AST assays are 68.8–92.3%. The CCS has an approximate price of $9,000 (USD). Requiring neither chemical nor biotic auxiliary materials for the assay makes the cost of each sample < $1. The MICs obtained with the automated CCS AST assays are more precise than those obtained with the manual BMD. Moreover, in 72 percent of the counterpart, the MICs obtained with the CCS AST assays are higher than that obtained with the BMD AST assays. The proposed CCS AST method has advantages in affordability, accuracy, sensitivity and user-friendliness.
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9
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Interdigitated and Wave-Shaped Electrode-Based Capacitance Sensor for Monitoring Antibiotic Effects. SENSORS 2020; 20:s20185237. [PMID: 32937982 PMCID: PMC7570453 DOI: 10.3390/s20185237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/11/2020] [Accepted: 09/11/2020] [Indexed: 12/26/2022]
Abstract
Label-free and real-time monitoring of the bacterial viability is essential for the accurate and sensitive characterization of the antibiotic effects. In the present study, we investigated the feasibility of the interdigitated and wave-shaped electrode (IWE) for monitoring the effect of tetracycline or kanamycin on Staphylococcus aureus (S. aureus) and methicillin-resistant S.aureus (MRSA). The electrical impedance spectra of the IWE immersed in the culture media for bacterial growth were characterized in a frequency range of 10 Hz to 1 kHz. The capacitance index (CI) (capacitance change relevant with the bacterial viability) was used to monitor the antibiotic effects on the S. aureus and MRSA in comparison to the traditional methods (disk diffusion test and optical density (OD) measurement). The experimental results showed that the percentage of change in CI (PCI) for the antibiotic effect on MRSA was increased by 51.58% and 57.83% in kanamycin and control, respectively. In contrast, the PCI value decreased by 0.25% for tetracycline, decreased by 52.63% and 37.66% in the cases of tetracycline and kanamycin-treated S. aureus, and increased 2.79% in the control, respectively. This study demonstrated the feasibility of the IWE-based capacitance sensor for the label-free and real-time monitoring of the antibiotic effects on S. aureus and MRSA.
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10
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Siavash Moakhar R, AbdelFatah T, Sanati A, Jalali M, Flynn SE, Mahshid SS, Mahshid S. A Nanostructured Gold/Graphene Microfluidic Device for Direct and Plasmonic-Assisted Impedimetric Detection of Bacteria. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23298-23310. [PMID: 32302093 DOI: 10.1021/acsami.0c02654] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hierarchical 3D gold nano-/microislands (NMIs) are favorably structured for direct and probe-free capture of bacteria in optical and electrochemical sensors. Moreover, their unique plasmonic properties make them a suitable candidate for plasmonic-assisted electrochemical sensors, yet the charge transfer needs to be improved. In the present study, we propose a novel plasmonic-assisted electrochemical impedimetric detection platform based on hybrid structures of 3D gold NMIs and graphene (Gr) nanosheets for probe-free capture and label-free detection of bacteria. The inclusion of Gr nanosheets significantly improves the charge transfer, addressing the central issue of using 3D gold NMIs. Notably, the 3D gold NMIs/Gr detection platform successfully distinguishes between various types of bacteria including Escherichia coli (E. coli) K12, Pseudomonas putida (P. putida), and Staphylococcus epidermidis (S. epidermidis) when electrochemical impedance spectroscopy is applied under visible light. We show that distinguishable and label-free impedimetric detection is due to dissimilar electron charge transfer caused by various sizes, morphologies, and compositions of the cells. In addition, the finite-difference time-domain (FDTD) simulation of the electric field indicates the intensity of charge distribution at the edge of the NMI structures. Furthermore, the wettability studies demonstrated that contact angle is a characteristic feature of each type of captured bacteria on the 3D gold NMIs, which strongly depends on the shape, morphology, and size of the cells. Ultimately, exposing the platform to various dilutions of the three bacteria strains revealed the ability to detect dilutions as low as ∼20 CFU/mL in a wide linear range of detection of 2 × 101-105, 2 × 101-104, and 1 × 102-1 × 105 CFU/mL for E. coli, P. putida, and S. epidermidis, respectively. The proposed hybrid structure of 3D gold NMIs and Gr, combined by novel plasmonic and conventional impedance spectroscopy techniques, opens interesting avenues in ultrasensitive label-free detection of bacteria with low cost and high stability.
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Affiliation(s)
| | - Tamer AbdelFatah
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0E9, Canada
| | - Alireza Sanati
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0E9, Canada
| | - Mahsa Jalali
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0E9, Canada
| | | | - Sahar Sadat Mahshid
- Biological Sciences, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Ontario M4N 3M5, Canada
| | - Sara Mahshid
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0E9, Canada
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11
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Sifuna MW, Baidillah MR, Sapkota A, Takei M. A Cole‐Cole Dielectric Relaxation Analysis of Albumin and γ‐Globulins for Protein Quantification by Electrical Impedance Spectroscopy. ELECTROANAL 2020. [DOI: 10.1002/elan.201900576] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Martin Wekesa Sifuna
- Department of Mechanical Engineering, Graduate School of Engineering and Science, Div. Fundamental Engineering Chiba University 1-33, Inage-ku, Chiba-shi Chiba 263-8522 Japan
| | - Marlin Ramadhan Baidillah
- Department of Mechanical Engineering, Graduate School of Engineering and Science, Div. Fundamental Engineering Chiba University 1-33, Inage-ku, Chiba-shi Chiba 263-8522 Japan
| | - Achyut Sapkota
- Department of Information and Computer Engineering, National Institute of Technology Kisarazu College 2-11-1 Kiyomidai-Higashi, Kisarazu 292-0041 Chiba Japan E-mai.l
| | - Masahiro Takei
- Department of Mechanical Engineering, Graduate School of Engineering and Science, Div. Fundamental Engineering Chiba University 1-33, Inage-ku, Chiba-shi Chiba 263-8522 Japan
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12
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Özgür E, Topçu AA, Yılmaz E, Denizli A. Surface plasmon resonance based biomimetic sensor for urinary tract infections. Talanta 2020; 212:120778. [PMID: 32113541 DOI: 10.1016/j.talanta.2020.120778] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 02/08/2023]
Abstract
Tailor-made Escherichia coli (E. coli) receptors were created with microcontact imprinted technique and binding events of E. coli were carried out by a surface plasmon resonance (SPR) sensor in aqueous solution and in urine mimic in real time and label-free. N-methacryloyl-(l)-histidine methyl ester (MAH) was selected as a functional monomer to design tailor-made E. coli receptors on the polymeric film and during the formation of the polymeric film on a chip surface, Ag nanoparticles (AgNPs) were entrapped into the polymer mixture in order to lower the detection limit of biomimetic SPR based sensor. The polymeric film was characterized with atomic force microscopy (AFM), scanning electron microscopy (SEM), ellipsometer and contact angle measurements. Limit of detection (LOD) was found 0.57 CFU/mL and feasibility of the biomimetic sensor was investigated in urine mimic.
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Affiliation(s)
- Erdoğan Özgür
- Advanced Technologies Application and Research Center, Hacettepe University, Ankara, Turkey
| | | | - Erkut Yılmaz
- Department of Molecular Biology and Biotechnology, Aksaray University, Aksaray, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
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13
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Ruan Y, Xu H, Yu J, Chen Q, Gu L, Guo A. A fluorescence immunoassay based on CdTe : Zn/ZnS quantum dots for the rapid detection of bacteria, taking Delftia tsuruhatensis CM’13 as an example. RSC Adv 2020; 10:1042-1049. [PMID: 35494437 PMCID: PMC9049142 DOI: 10.1039/c9ra08651j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 11/09/2019] [Indexed: 11/21/2022] Open
Abstract
A fluorescence immunoassay has been widely applied in different fields due to its high sensitivity, simple operations, and high accuracy.
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Affiliation(s)
- Yao Ruan
- National Research and Development Center for Egg Processing
- Huazhong Agriculture University
- Wuhan 430070
- China
| | - Huanhuan Xu
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
- Wuhan 430070
- China
| | - Jinlu Yu
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
- Wuhan 430070
- China
| | - Qian Chen
- National Research and Development Center for Egg Processing
- Huazhong Agriculture University
- Wuhan 430070
- China
| | - Lihong Gu
- National Research and Development Center for Egg Processing
- Huazhong Agriculture University
- Wuhan 430070
- China
| | - Ailing Guo
- National Research and Development Center for Egg Processing
- Huazhong Agriculture University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
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14
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Zhang X, Wang X, Yang Q, Jiang X, Li Y, Zhao J, Qu K. Conductometric sensor for viable Escherichia coli and Staphylococcus aureus based on magnetic analyte separation via aptamer. Mikrochim Acta 2019; 187:43. [PMID: 31832780 DOI: 10.1007/s00604-019-3880-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 09/29/2019] [Indexed: 11/28/2022]
Abstract
A method is described to determine viable populations of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The method employs aptamer-magnetic separation combined with resistivity based detection. The bacteria were separated by means of aptamer-functionalized magnetic beads. They were then quantified by measuring their growth kinetics through time-dependent conductivity changes of culture media. The time-course of growth was logged by real-time and contactless measurements that yielded starting concentrations from the duration of lag intervals prior to the log phase of growth. In pure water samples, the linear ranges for measuring E. coli and S. aureus cells are 2.5 × 103-2.5 × 108 CFU·mL-1 and 4.1 × 103-4.1 × 108 CFU·mL-1, respectively. In spiked tap water samples, the lower limits of detection are 2.3 × 104 CFU·mL-1 and 4.0 × 103 CFU·mL-1 for E. coli and S. aureus, with recoveries of 87.0-108.7% and 92.5-105.0%, respectively. The relative standard deviation of these measurements (10.0%) is below that of plate counting method (13.9%). The presence of micro/nanoparticles such as magnetic beads or selenium nanoparticles in the culture media does not interfere, unlike in case of automatted optical density monitoring. The E. coli and S. aureus cells captured on the aptamer-functionalized magnetic beads can be directly tested for their susceptibility to antibiotics. The process of magnetic separation and determination of load burden requires neither bulky, sophisticated equipment nor expensive reagents. Graphical abstractAptamer-functionalized magnetic beads are used to selectively capture and separate E. coli and S. aureus cells in aqueous samples. They are directly transferred to a multichannel conductometric sensor for the quantification of viable bacteria via automated monitoring of their growth kinetics.
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Affiliation(s)
- Xuzhi Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China
| | - Xiaochun Wang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Qianqian Yang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.,College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China
| | - Xiaoyu Jiang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.,College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China
| | - Yang Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Jun Zhao
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Keming Qu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China. .,Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China.
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15
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Brosel-Oliu S, Abramova N, Uria N, Bratov A. Impedimetric transducers based on interdigitated electrode arrays for bacterial detection - A review. Anal Chim Acta 2019; 1088:1-19. [PMID: 31623704 DOI: 10.1016/j.aca.2019.09.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/29/2019] [Accepted: 09/10/2019] [Indexed: 01/31/2023]
Abstract
Application of the impedance spectroscopy technique to detection of bacteria has advanced considerably over the last decade. This is reflected by the large amount of publications focused on basic research and applications of impedance biosensors. Employment of modern technologies to significantly reduce dimension of impedimetric devices enable on-chip integration of interdigitated electrode arrays for low-cost and easy-to-use sensors. This review is focused on publications dealing with interdigitated electrodes as a transducer unit and different bacteria detection systems using these devices. The first part of the review deals with the impedance technique principles, paying special attention to the use of interdigitated electrodes, while the main part of this work is focused on applications ranging from bacterial growth monitoring to label-free specific bacteria detection.
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Affiliation(s)
- Sergi Brosel-Oliu
- Departament de Micro-Nano Sistemes, BIOMEMS Group, Institut Microelectrònica de Barcelona (IMB-CNM), CSIC, 08290, Bellaterra, Spain
| | - Natalia Abramova
- Departament de Micro-Nano Sistemes, BIOMEMS Group, Institut Microelectrònica de Barcelona (IMB-CNM), CSIC, 08290, Bellaterra, Spain; Lab. Artificial Sensors Syst., ITMO University, Kronverskiy pr.49, 197101, St.Petersburg, Russia
| | - Naroa Uria
- Departament de Micro-Nano Sistemes, BIOMEMS Group, Institut Microelectrònica de Barcelona (IMB-CNM), CSIC, 08290, Bellaterra, Spain
| | - Andrey Bratov
- Departament de Micro-Nano Sistemes, BIOMEMS Group, Institut Microelectrònica de Barcelona (IMB-CNM), CSIC, 08290, Bellaterra, Spain.
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16
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Singh S, Moudgil A, Mishra N, Das S, Mishra P. Vancomycin functionalized WO3 thin film-based impedance sensor for efficient capture and highly selective detection of Gram-positive bacteria. Biosens Bioelectron 2019; 136:23-30. [DOI: 10.1016/j.bios.2019.04.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/05/2019] [Accepted: 04/15/2019] [Indexed: 01/08/2023]
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17
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Zhang X, Jiang X, Hao Z, Qu K. Advances in online methods for monitoring microbial growth. Biosens Bioelectron 2018; 126:433-447. [PMID: 30472440 DOI: 10.1016/j.bios.2018.10.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/16/2018] [Indexed: 12/24/2022]
Abstract
Understanding the characteristics of microbial growth is of great significance to many fields including in scientific research, the food industry, health care, and agriculture. Many methods have been established to characterize the process of microbial growth. Online and automated methods, in which sample transfer is avoided, are popular because they can facilitate the development of simple, safe, and effective growth monitoring. This review focuses on advances in online monitoring methods over the last decade (2008-2018). We specifically focus on optic- and electrochemistry-based techniques, either through contact measurements or contactless measurement. Strengths and weaknesses of each set of methods are described and we also speculate on forthcoming trends in the field.
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Affiliation(s)
- Xuzhi Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106, Nanjing Rd, Shinan District, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, China
| | - Xiaoyu Jiang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106, Nanjing Rd, Shinan District, Qingdao 266071, China; College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
| | - Zhihui Hao
- School of Chemistry and Pharmaceutical Sciences, Qingdao Agriculture University, 700, Changcheng Rd, Chengyang District, Qingdao 266109, China.
| | - Keming Qu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106, Nanjing Rd, Shinan District, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, China.
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18
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Shoute LCT, Anwar A, MacKay S, Abdelrasoul GN, Lin D, Yan Z, Nguyen AH, McDermott MT, Shah MA, Yang J, Chen J, Li XS. Immuno-impedimetric Biosensor for Onsite Monitoring of Ascospores and Forecasting of Sclerotinia Stem Rot of Canola. Sci Rep 2018; 8:12396. [PMID: 30120328 PMCID: PMC6098051 DOI: 10.1038/s41598-018-30167-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 07/01/2018] [Indexed: 12/01/2022] Open
Abstract
Sclerotinia stem rot, caused by the fungal pathogen Sclerotinia sclerotiorum, is a destructive disease of canola and many other broadleaf crops. The primary inoculum responsible for initiating Sclerotinia epidemics is airborne ascospores released from the apothecia of sclerotia. Timely detection of the presence of airborne ascospores can serve as an early-warning system for forecasting and management of the disease. A major challenge is to develop a portable and automated device which can be deployed onsite to detect and quantify the presence of minute quantities of ascospores in the air and serves as a unit in a network of systems for forecasting of the epidemic. In this communication, we present the development of an impedimetric non-Faradaic biosensor based on anti-S. sclerotiorum polyclonal antibodies as probes to selectively capture the ascospores and sense their binding by an impedance based interdigitated electrode which was found to directly and unambiguously correlate the number of ascospores on sensor surface with the impedance response.
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Affiliation(s)
- Lian C T Shoute
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Afreen Anwar
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Scott MacKay
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Gaser N Abdelrasoul
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Donghai Lin
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Zhimin Yan
- National Institute for Nanotechnology, National Research Council, Edmonton, AB, T6G 2M9, Canada
| | - Anh H Nguyen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Mark T McDermott
- National Institute for Nanotechnology, National Research Council, Edmonton, AB, T6G 2M9, Canada
- Department of Chemistry, University of Alberta, Edmonton, AB, T6G 2E9, Canada
| | - Manzoor A Shah
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Jian Yang
- InnoTech Alberta, Vegreville, AB, T9C 1T4, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- National Institute for Nanotechnology, National Research Council, Edmonton, AB, T6G 2M9, Canada
| | - Xiujie S Li
- InnoTech Alberta, Vegreville, AB, T9C 1T4, Canada.
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19
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Application of Aptamer-Based Biosensor for Rapid Detection of Pathogenic Escherichia coli. SENSORS 2018; 18:s18082518. [PMID: 30071682 PMCID: PMC6111995 DOI: 10.3390/s18082518] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/24/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022]
Abstract
Pathogenic Escherichia coli (E. coli) widely exist in Nature and have always been a serious threat to the human health. Conventional colony forming units counting-based methods are quite time consuming and not fit for rapid detection for E. coli. Therefore, novel strategies for improving detection efficiency and sensitivity are in great demand. Aptamers have been widely used in various sensors due to their extremely high affinity and specificity. Successful applications of aptamers have been found in the rapid detection of pathogenic E. coli. Herein, we present the latest advances in screening of aptamers for E. coli, and review the preparation and application of aptamer-based biosensors in rapid detection of E. coli. Furthermore, the problems and new trends in these aptamer-based biosensors for rapid detection of pathogenic microorganism are also discussed.
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20
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Hoyos-Nogués M, Gil FJ, Mas-Moruno C. Antimicrobial Peptides: Powerful Biorecognition Elements to Detect Bacteria in Biosensing Technologies. Molecules 2018; 23:molecules23071683. [PMID: 29996565 PMCID: PMC6100210 DOI: 10.3390/molecules23071683] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 11/25/2022] Open
Abstract
Bacterial infections represent a serious threat in modern medicine. In particular, biofilm treatment in clinical settings is challenging, as biofilms are very resistant to conventional antibiotic therapy and may spread infecting other tissues. To address this problem, biosensing technologies are emerging as a powerful solution to detect and identify bacterial pathogens at the very early stages of the infection, thus allowing rapid and effective treatments before biofilms are formed. Biosensors typically consist of two main parts, a biorecognition moiety that interacts with the target (i.e., bacteria) and a platform that transduces such interaction into a measurable signal. This review will focus on the development of impedimetric biosensors using antimicrobial peptides (AMPs) as biorecognition elements. AMPs belong to the innate immune system of living organisms and are very effective in interacting with bacterial membranes. They offer unique advantages compared to other classical bioreceptor molecules such as enzymes or antibodies. Moreover, impedance-based sensors allow the development of label-free, rapid, sensitive, specific and cost-effective sensing platforms. In summary, AMPs and impedimetric transducers combine excellent properties to produce robust biosensors for the early detection of bacterial infections.
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Affiliation(s)
- Mireia Hoyos-Nogués
- Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain.
- Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain.
| | - F J Gil
- Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain.
- Universitat Internacional de Catalunya (UIC), 08195 Sant Cugat del Vallès, Spain.
| | - Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain.
- Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain.
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21
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Ward A, Hannah A, Kendrick S, Tucker N, MacGregor G, Connolly P. Identification and characterisation of Staphylococcus aureus on low cost screen printed carbon electrodes using impedance spectroscopy. Biosens Bioelectron 2018; 110:65-70. [DOI: 10.1016/j.bios.2018.03.048] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/08/2018] [Accepted: 03/21/2018] [Indexed: 12/19/2022]
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22
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Zhang X, Jiang X, Yang Q, Wang X, Zhang Y, Zhao J, Qu K, Zhao C. Online Monitoring of Bacterial Growth with an Electrical Sensor. Anal Chem 2018; 90:6006-6011. [PMID: 29685039 DOI: 10.1021/acs.analchem.8b01214] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Herein, we developed an automatic electrical bacterial growth sensor (EBGS) based on a multichannel capacitively coupled contactless conductivity detector (C4D). With the use of the EBGS, up to eight culture samples of E. coli in disposable tubes were online monitored simultaneously in a noninvasive manner. Growth curves with high resolution (on the order of a time scale of seconds) were generated by plotting normalized apparent conductivity value against incubation time. The characteristic data of E. coli growth (e.g., growth rate) obtained here were more accurate than those obtained with optical density and contact conductivity methods. And the correlation coefficient of the regression line ( r) for quantitative determination of viable bacteria was 0.9977. Moreover, it also could be used for other tasks, such as the investigation of toxic/stress effects from chemicals and antimicrobial susceptibility testing. All of these performances required neither auxiliary devices nor additional chemicals and biomaterials. Taken together, this strategy has the advantages of simplicity, accuracy, reproducibility, affordability, versatility, and miniaturization, liberating the users greatly from financial and labor costs.
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Affiliation(s)
- Xuzhi Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China
| | - Xiaoyu Jiang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China.,College of Marine Sciences , Shanghai Ocean University , Shanghai 201306 , China
| | - Qianqian Yang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China.,College of Marine Sciences , Shanghai Ocean University , Shanghai 201306 , China
| | - Xiaochun Wang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China
| | - Yan Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China
| | - Jun Zhao
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China
| | - Keming Qu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences and Laboratory for Marine Fisheries Science and Food Production Processes , Qingdao National Laboratory for Marine Science and Technology , 106 Nanjing Road , Qingdao 266071 , China
| | - Chuan Zhao
- School of Chemistry , Kensington Campus, The University of New South Wales , Sydney , NSW 2052 , Australia
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23
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Kumar M, Das A. Emerging nanotechnology based strategies for diagnosis and therapeutics of urinary tract infections: A review. Adv Colloid Interface Sci 2017; 249:53-65. [PMID: 28668171 DOI: 10.1016/j.cis.2017.06.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 06/23/2017] [Accepted: 06/23/2017] [Indexed: 12/31/2022]
Abstract
At present, various diagnostic and therapeutic approaches are available for urinary tract infections. But, still the quest for development of more rapid, accurate and reliable approach is an unending process. The pathogens, especially uropathogens are adapting to new environments and antibiotics day by day rapidly. Therefore, urinary tract infections are evolving as hectic and difficult to eradicate, increasing the economic burden to the society. The technological advances should be able to compete the adaptability characteristics of microorganisms to combat their growth in new environments and thereby preventing their infections. Nanotechnology is at present an extensively developing area of immense scientific interest since it has diverse potential applications in biomedical field. Nanotechnology may be combined with cellular therapy approaches to overcome the limitations caused by conventional therapeutics. Nanoantibiotics and drug delivery using nanotechnology are currently growing areas of research in biomedical field. Recently, various categories of antibacterial nanoparticles and nanocarriers for drug delivery have shown their potential in the treatment of infectious diseases. Nanoparticles, compared to conventional antibiotics, are more beneficial in terms of decreasing toxicity, prevailing over resistance and lessening costs. Nanoparticles present long term therapeutic effects since they are retained in body for relatively longer periods. This review focuses on recent advances in the field of nanotechnology, principally emphasizing diagnostics and therapeutics of urinary tract infections.
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Hashemi P, Afkhami A, Bagheri H, Amidi S, Madrakian T. Fabrication of a novel impedimetric sensor based on l-Cysteine/Cu(II) modified gold electrode for sensitive determination of ampyra. Anal Chim Acta 2017; 984:185-192. [DOI: 10.1016/j.aca.2017.06.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 02/06/2023]
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25
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Yu F, Li Y, Li M, Tang L, He JJ. DNAzyme-integrated plasmonic nanosensor for bacterial sample-to-answer detection. Biosens Bioelectron 2017; 89:880-885. [DOI: 10.1016/j.bios.2016.09.103] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/18/2016] [Accepted: 09/28/2016] [Indexed: 12/30/2022]
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26
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Dua P, Ren S, Lee SW, Kim JK, Shin HS, Jeong OKC, Kim S, Lee DK. Cell-SELEX Based Identification of an RNA Aptamer for Escherichia coli and Its Use in Various Detection Formats. Mol Cells 2016; 39:807-813. [PMID: 27871171 PMCID: PMC5125936 DOI: 10.14348/molcells.2016.0167] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 10/01/2016] [Accepted: 10/18/2016] [Indexed: 02/02/2023] Open
Abstract
Escherichia coli are important indicator organisms, used routinely for the monitoring of water and food safety. For quick, sensitive and real-time detection of E. coli we developed a 2'F modified RNA aptamer Ec3, by Cell-SELEX. The 31 nucleotide truncated Ec3 demonstrated improved binding and low nano-molar affinity to E. coli. The aptamer developed by us out-performs the commercial antibody and aptamer used for E. coli detection. Ec3(31) aptamer based E. coli detection was done using three different detection formats and the assay sensitivities were determined. Conventional Ec3(31)-biotin-streptavidin magnetic separation could detect E. coli with a limit of detection of 1.3 × 106 CFU/ml. Although, optical analytic technique, biolayer interferometry, did not improve the sensitivity of detection for whole cells, a very significant improvement in the detection was seen with the E. coli cell lysate (5 × 104 CFU/ml). Finally we developed Electrochemical Impedance Spectroscopy (EIS) gap capacitance biosensor that has detection limits of 2 × 104 CFU/mL of E. coli cells, without any labeling and signal amplification techniques. We believe that our developed method can step towards more complex and real sample application.
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Affiliation(s)
- Pooja Dua
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
| | - Shuo Ren
- Department of Bioengineering, Dongguk University, Seoul 04620,
Korea
| | - Sang Wook Lee
- Department of Bioengineering, Dongguk University, Seoul 04620,
Korea
| | - Joon-Ki Kim
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
| | - Hye-su Shin
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
| | - OK-Chan Jeong
- Department of Biomedical Engineering and School of Mechanical Engineering, Inje University, Gimhae 50834,
Korea
| | - Soyoun Kim
- Department of Bioengineering, Dongguk University, Seoul 04620,
Korea
| | - Dong-Ki Lee
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
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27
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Fritzenwanker M, Imirzalioglu C, Chakraborty T, Wagenlehner FM. Modern diagnostic methods for urinary tract infections. Expert Rev Anti Infect Ther 2016; 14:1047-1063. [DOI: 10.1080/14787210.2016.1236685] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Mallén-Alberdi M, Vigués N, Mas J, Fernández-Sánchez C, Baldi A. Impedance spectral fingerprint of E. coli cells on interdigitated electrodes: A new approach for label free and selective detection. SENSING AND BIO-SENSING RESEARCH 2016. [DOI: 10.1016/j.sbsr.2016.02.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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