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Shi C, Tang Y, Yang H, Yang J, Wu Y, Sun H, Yin S, Wang G. Capture and detection of Escherichia coli with graphene aerogels. J Mater Chem B 2022; 10:8211-8217. [PMID: 36172811 DOI: 10.1039/d2tb01749k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Some pathogenic bacteria may cause serious food poisoning as well as catastrophic infections. Thus, it is critical to identify bacteria using simple, quick, and sensitive methods. Herein, we fabricate a graphene aerogel-based biosensing system to capture and detect Escherichia coli (E. coli) with high specificity and sensitivity. A graphene aerogel is prepared by a one-step hydrothermal synthesis method without any reducing reagent. With the help of E. coli antibodies and the graphene foam with a porous structure, E. coli can be captured using the detection substrate with high specificity and selectivity. The electrical resistance and electrochemical impedance spectroscopy (EIS) results of the graphene aerogel foam changed with high sensitivity during E. coli adhesion. Moreover, the resistance change of the graphene device can still be observed when the E. coli concentration was as low as 10 cfu mL-1, while there is no obvious resistance change in the use of Staphylococcus aureus. The subsequent EIS test also found that the charge transfer resistance (Rct) of the detection substrate gradually increased during the E. coli capture process. This nanoelectronic biosensor is simple, quick, safe, and very sensitive, and it may be used as a high-throughput platform for pathogenic bacterial detection, bacterial research, and antimicrobial drug screening.
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Affiliation(s)
- Chenyang Shi
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, P. R. China.
| | - Yanan Tang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, P. R. China
| | - Hanyu Yang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, P. R. China.
| | - Junfeng Yang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, P. R. China.
| | - Yuyang Wu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, P. R. China.
| | - Hang Sun
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, P. R. China
| | - Shengyan Yin
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, P. R. China.
| | - Guangbin Wang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, P. R. China.
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Li M, Tang S, Chu M, Xue Y, Mao J, Guo W, Mao C, Zhou M. Magnetic Nanosorbents for Adsorption of Blood Mercury. ChemistrySelect 2022. [DOI: 10.1002/slct.202201779] [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]
Affiliation(s)
- Minghai Li
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Shuwan Tang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Meilin Chu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Yunxin Xue
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Jiazhou Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Wenyan Guo
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University No.1, Wenyuan Road Nanjing 210023 China
| | - Min Zhou
- Department of Vascular Surgery Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School No.22, Hankou Road Nanjing 210008 China
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Saad MG, Beyenal H, Dong WJ. Exosomes as Powerful Engines in Cancer: Isolation, Characterization and Detection Techniques. BIOSENSORS 2021; 11:518. [PMID: 34940275 PMCID: PMC8699402 DOI: 10.3390/bios11120518] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/28/2021] [Accepted: 12/02/2021] [Indexed: 06/01/2023]
Abstract
Exosomes, powerful extracellular nanovesicles released from almost all types of living cells, are considered the communication engines (messengers) that control and reprogram physiological pathways inside target cells within a community or between different communities. The cell-like structure of these extracellular vesicles provides a protective environment for their proteins and DNA/RNA cargos, which serve as biomarkers for many malicious diseases, including infectious diseases and cancers. Cancer-derived exosomes control cancer metastasis, prognosis, and development. In addition to the unique structure of exosomes, their nanometer size and tendency of interacting with cells makes them a viable novel drug delivery solution. In recent years, numerous research efforts have been made to quantify and characterize disease-derived exosomes for diagnosis, monitoring, and therapeutic purposes. This review aims to (1) relate exosome biomarkers to their origins, (2) focus on current isolation and detection methods, (3) discuss and evaluate the proposed technologies deriving from exosome research for cancer treatment, and (4) form a conclusion about the prospects of the current exosome research.
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Affiliation(s)
| | | | - Wen-Ji Dong
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA; (M.G.S.); (H.B.)
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Su H, Yin S, Yang J, Wu Y, Shi C, Sun H, Wang G. In situ monitoring of circulating tumor cell adhered on three-dimensional graphene/ZnO macroporous structure by resistance change and electrochemical impedance spectroscopy. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Fang D, Zhang S, Dai H, Hong Z, Lin Y. A self-enhanced renewable electrochemiluminescence biosensing platform for ultrasensitive detection of sialic acid. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134956] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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