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Zhen D, Zhang S, Yang A, Ma Q, Deng Z, Fang J, Cai Q, He J. A supersensitive electrochemical sensor based on RCA amplification-assisted "silver chain"-linked gold interdigital electrodes and CRISPR/Cas9 for the detection of Staphylococcus aureus in food. Food Chem 2024; 440:138197. [PMID: 38104453 DOI: 10.1016/j.foodchem.2023.138197] [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: 08/23/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
With the rising emphasis on food safety, technology to rapidly identify Staphylococcus aureus (S. aureus) is of great significance. Herein, we developed a novel electrochemical biosensor based on the CRISPR/Cas9 system and rolling circle amplification (RCA)-assisted "silver chain"-linked gold interdigital electrodes (Au-IDE). This sensor utilizes RCA to create DNA long chains that span the Au-IDE, and CRISPR/Cas9 as a recognition component to recognize capture/target dsDNA. Additionally, we used silver staining technology to improve detection sensitivity. Then, we detected S. aureus through impedance changes that occurred when the silver chain between the Au-IDE was connected or broke, with a limit of detection (LOD) of 7 CFU/mL and a detection time of 1.5 h. Lastly, we successfully employed this sensor to detect S. aureus in real food samples, making it a promising tool for food monitoring.
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Affiliation(s)
- Deshuai Zhen
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang 421001, PR China; Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Shaoqi Zhang
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang 421001, PR China; Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Aofeng Yang
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Qian Ma
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Zhongliang Deng
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang 421001, PR China; Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Jing Fang
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Qingyun Cai
- State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Jun He
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang 421001, PR China.
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Bai Y, Xu P, Li S, Wang D, Zhang K, Zheng D, Yue D, Zhang G, He S, Li Y, Zou H, Deng Y. Signal amplification strategy of DNA self-assembled biosensor and typical applications in pathogenic microorganism detection. Talanta 2024; 272:125759. [PMID: 38350248 DOI: 10.1016/j.talanta.2024.125759] [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: 11/05/2023] [Revised: 01/17/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
Biosensors have emerged as ideal analytical devices for various bio-applications owing to their low cost, convenience, and portability, which offer great potential for improving global healthcare. DNA self-assembly techniques have been enriched with the development of innovative amplification strategies, such as dispersion-to-localization of catalytic hairpin assembly, and dumbbell hybridization chain reaction, which hold great significance for building biosensors capable of realizing sensitive, rapid and multiplexed detection of pathogenic microorganisms. Here, focusing primarily on the signal amplification strategies based on DNA self-assembly, we concisely summarized the strengths and weaknesses of diverse isothermal nucleic acid amplification techniques. Subsequently, both single-layer and cascade amplification strategies based on traditional catalytic hairpin assembly and hybridization chain reaction were critically explored. Furthermore, a comprehensive overview of the recent advances in DNA self-assembled biosensors for the detection of pathogenic microorganisms is presented to summarize methods for biorecognition and signal amplification. Finally, a brief discussion is provided about the current challenges and future directions of DNA self-assembled biosensors.
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Affiliation(s)
- Yuxin Bai
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 610075, Chengdu, China
| | - Pingyao Xu
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Shi Li
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Dongsheng Wang
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Kaijiong Zhang
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Dongming Zheng
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 610075, Chengdu, China
| | - Daifan Yue
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 610075, Chengdu, China
| | - Guiji Zhang
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Shuya He
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Yan Li
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 610075, Chengdu, China.
| | - Haimin Zou
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China.
| | - Yao Deng
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China.
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Kornienko M, Bespiatykh D, Gorodnichev R, Abdraimova N, Shitikov E. Transcriptional Landscapes of Herelleviridae Bacteriophages and Staphylococcus aureus during Phage Infection: An Overview. Viruses 2023; 15:1427. [PMID: 37515114 PMCID: PMC10383478 DOI: 10.3390/v15071427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
The issue of antibiotic resistance in healthcare worldwide has led to a pressing need to explore and develop alternative approaches to combat infectious diseases. Among these methods, phage therapy has emerged as a potential solution to tackle this growing challenge. Virulent phages of the Herelleviridae family, known for their ability to cause lysis of Staphylococcus aureus, a clinically significant pathogen frequently associated with multidrug resistance, have proven to be one of the most effective viruses utilized in phage therapy. In order to utilize phages for therapeutic purposes effectively, a thorough investigation into their physiology and mechanisms of action on infected cells is essential. The use of omics technologies, particularly total RNA sequencing, is a promising approach for analyzing the interaction between phages and their hosts, allowing for the assessment of both the behavior of the phage during infection and the cell's response. This review aims to provide a comprehensive overview of the physiology of the Herelleviridae family, utilizing existing analyses of their total phage transcriptomes. Additionally, it sheds light on the changes that occur in the metabolism of S. aureus when infected with virulent bacteriophages, contributing to a deeper understanding of the phage-host interaction.
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Affiliation(s)
- Maria Kornienko
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency Medicine, Moscow 119435, Russia
| | - Dmitry Bespiatykh
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency Medicine, Moscow 119435, Russia
| | - Roman Gorodnichev
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency Medicine, Moscow 119435, Russia
| | - Narina Abdraimova
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency Medicine, Moscow 119435, Russia
| | - Egor Shitikov
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency Medicine, Moscow 119435, Russia
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