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Ouyang R, Feng M, Liu J, Wang C, Wang Z, Hu X, Miao Y, Zhou S. Hydrangea-like TiO 2/Bi 2MoO 6 porous nanoflowers triggering highly sensitive electrochemical immunosensing to tumor marker. Mikrochim Acta 2024; 191:262. [PMID: 38613581 DOI: 10.1007/s00604-024-06346-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/04/2024] [Indexed: 04/15/2024]
Abstract
Rapid and sensitive detection of carcinoembryonic antigen (CEA) is of great significance for cancer patients. Here, molybdenum (Mo) was doped into bismuth oxide (Bi2O3) by one-pot hydrothermal method forming porous tremella Bi2MoO6 nanocomposites with a larger specific surface area than the spherical structure. Then, a new kind of hydrangea-like TiO2/Bi2MoO6 porous nanoflowers (NFs) was prepared by doping titanium into Bi2MoO6, where titanium dioxide (TiO2) grew in situ on the surface of Bi2MoO6 nanoparticles (NPs). The hydrangea-like structure provides larger specific surface area, higher electron transfer ability and biocompatibility as well as more active sites conducive to the attachment of anti-carcinoembryonic antigen (anti-CEA) to TiO2/Bi2MoO6 NFs. A novel label-free electrochemical immunosensor was then constructed for the quantitative detection of CEA using TiO2/Bi2MoO6 NFs as sensing platform, showing a good linear relationship with CEA in the concentration range 1.0 pg/mL ~ 1.0 mg/mL and a detection limit of 0.125 pg/mL (S/N = 3). The results achieved with the designed immunosensor are comparable with many existing immunosensors used for the detection of CEA in real samples.
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Affiliation(s)
- Ruizhuo Ouyang
- Institute of Bismuth Science & School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Meina Feng
- Institute of Bismuth Science & School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jinyao Liu
- Institute of Bismuth Science & School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Caihong Wang
- Institute of Bismuth Science & School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Zhongmin Wang
- Institute of Bismuth Science & School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Xin Hu
- Zhejiang Zhili Environmental Protection Technology, Jinhua, 321000, China
| | - Yuqing Miao
- Institute of Bismuth Science & School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Shuang Zhou
- Cancer Institute, Tongji University School of Medicine, Shanghai, 200092, China.
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Yang Z, Yang J, Yue L, Shen B, Wang J, Miao Y, Ouyang R, Hu Y. Enhancement Effects and Mechanism Studies of Two Bismuth-Based Materials Assisted by DMSO and Glycerol in GC-Rich PCR. Molecules 2023; 28:molecules28114515. [PMID: 37298991 DOI: 10.3390/molecules28114515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/22/2023] [Accepted: 04/30/2023] [Indexed: 06/12/2023] Open
Abstract
Polymerase chain reaction (PCR) has extensive bioanalytical applications in molecular diagnostics and genomic research studies for rapid detection and precise genomic amplification. Routine integrations for analytical workflow indicate certain limitations, including low specificity, efficiency, and sensitivity in conventional PCR, particularly towards amplifying high guanine-cytosine (GC) content. Further, there are many ways to enhance the reaction, for example, using different PCR strategies such as hot-start/touchdown PCR or adding some special modifications or additives such as organic solvents or compatible solutes, which can improve PCR yield. Due to the widespread use of bismuth-based materials in biomedicine, which have not yet been used for PCR optimization, this attracts our attention. In this study, two bismuth-based materials that are inexpensive and readily available were used to optimize GC-rich PCR. The results demonstrated that ammonium bismuth citrate and bismuth subcarbonate effectively enhanced PCR amplification of the GNAS1 promoter region (∼84% GC) and APOE (75.5% GC) gene of Homo sapiens mediated by Ex Taq DNA polymerase within the appropriate concentration range. Combining DMSO and glycerol additives was critical in obtaining the target amplicons. Thus, the solvents mixed with 3% DMSO and 5% glycerol were used in bismuth-based materials. That allowed for better dispersion of bismuth subcarbonate. As for the enhanced mechanisms, the surface interaction of PCR components, including Taq polymerase, primer, and products with bismuth-based materials, was maybe the main reason. The addition of materials can reduce the melting temperature (Tm), adsorb polymerase and modulate the amount of active polymerase in PCR, facilize the dissociation of DNA products, and enhance the specificity and efficiency of PCR. This work provided a class of candidate enhancers for PCR, deepened our understanding of the enhancement mechanisms of PCR, and also explored a new application field for bismuth-based materials.
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Affiliation(s)
- Zhu Yang
- Institute of Bismuth and Rhenium Science, School Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Junlei Yang
- Institute of Bismuth and Rhenium Science, School Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Lihuan Yue
- CAS Key Laboratory of Molecular Virology & Immunology, Institutional Center for Shared Technologies and Facilities, Pathogen Discovery and Big Data Platform, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bei Shen
- CAS Key Laboratory of Molecular Virology & Immunology, Institutional Center for Shared Technologies and Facilities, Pathogen Discovery and Big Data Platform, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jing Wang
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
- CAS Key Laboratory of Molecular Virology & Immunology, Institutional Center for Shared Technologies and Facilities, Pathogen Discovery and Big Data Platform, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yuqing Miao
- Institute of Bismuth and Rhenium Science, School Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ruizhuo Ouyang
- Institute of Bismuth and Rhenium Science, School Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yihong Hu
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
- CAS Key Laboratory of Molecular Virology & Immunology, Institutional Center for Shared Technologies and Facilities, Pathogen Discovery and Big Data Platform, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
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Ouyang R, Zhang W, Liu J, Li Y, Zhang J, Jiang L, Zhao Y, Wang H, Dai C, Tamayo AIB, Liu B, Miao Y. Pt Nanodot Inlaid Mesoporous NaBiOF Nanoblackberry for Remarkable Signal Amplification Toward Biomarker Detection. Mikrochim Acta 2023; 190:214. [PMID: 37171612 DOI: 10.1007/s00604-023-05789-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 04/09/2023] [Indexed: 05/13/2023]
Abstract
A new ultrasensitive sandwich-type electrochemical immunosensor has been successfully constructed to quantitatively detect carcinoembryonic antigen (CEA) using blackberry-like mesoporous bismuth-based nanospheres NaBiOF (NBOF NSs) inlaid with Pt nanodots (NDs) (BiPt NSs) as the antibody capture and signal-amplifying probe. The growth of Pt NDs inside the holes of NBOF NSs formed the nanozyme inlay outside NBOF NSs, greatly increasing the specific surface area and exposure of the catalytic active sites by minimizing the particle size of the Pt to nanodot scale. Such a blackberry-shaped heterojunction structure of BiPt NSs was well-suited to antibody capture and improved the catalytic performance of BiPt NSs in reducing H2O2, amplifying the signal, and yielding highly sensitive detection of CEA. The use of Au nanoparticle-modified multi-walled carbon nanotubes (Au@MWCNTs) as the electrode substrates significantly enhanced the electron transfer behavior over the electrode surface, further increasing the conductivity and sensitivity of the immunosensor. Remarkably, good compatibility with human body fluid was achieved using the newly developed BiPt-based immunosensor resulting from the favorable biocompatibility and stability of both BiPt NSs and Au@MWCNTs. Benefiting from the double signal amplification strategy and the high biocompatibility, the immunosensor responded linearly to CEA in a wide range from 50 fg/mL to 100 ng/ml with an extremely low detection limit of 3.52 fg/mL (S/N = 3). The excellent detection properties of this new immunosensor were evidenced by the satisfactory selectivity, reproducibility, and stability obtained, as well as the reliable and precise determination of CEA in actual human blood samples. This work provides a new strategy for the early clinical diagnosis of cancer. Novel blackberry-like mesoporous NaBiOF nanospheres with Pt nanodot inlay were successfully usedto construct a sandwich-type electrochemical immunosensor for the ultra-sensitive detection ofcarcinoembryonic antigen in human blood plasma based on a remarkable signal amplification strategy.
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Affiliation(s)
- Ruizhuo Ouyang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Weilun Zhang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jinyao Liu
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuhao Li
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jing Zhang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Lan Jiang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuefeng Zhao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Hui Wang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Chenyu Dai
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Abel Ibrahim Balbín Tamayo
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
- Faculty of Chemistry, University of Havana, 10400, Havana, Cuba
| | - Baolin Liu
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China.
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Yuqing Miao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China.
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Ouyang R, Liu J, Wang S, Zhang W, Feng K, Liu C, Liu B, Miao Y, Zhou S. Virtual Screening-Based Study of Novel Anti-Cancer Drugs Targeting G-Quadruplex. Pharmaceutics 2023; 15:pharmaceutics15051414. [PMID: 37242656 DOI: 10.3390/pharmaceutics15051414] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/19/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
In order to develop new anti-cancer drugs more efficiently and reduce side effects based on active drug targets, the virtual drug screening was carried out through the target of G-quadruplexes and 23 hit compounds were, thus, screened out as potential anticancer drugs. Six classical G-quadruplex complexes were introduced as query molecules, and the three-dimensional similarity of molecules was calculated by shape feature similarity (SHAFTS) method so as to reduce the range of potential compounds. Afterwards, the molecular docking technology was utilized to perform the final screening followed by the exploration of the binding between each compound and four different structures of G-quadruplex. In order to verify the anticancer activity of the selected compounds, compounds 1, 6 and 7 were chosen to treat A549 cells in vitro, the lung cancer epithelial cells, for further exploring their anticancer activity. These three compounds were found to be of good characteristics in the treatment of cancer, which revealed the great application prospect of the virtual screening method in developing new drugs.
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Affiliation(s)
- Ruizhuo Ouyang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Jinyao Liu
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shen Wang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Weilun Zhang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Kai Feng
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Conghao Liu
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Baolin Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuqing Miao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shuang Zhou
- Cancer Institute, Tongji University School of Medicine, Shanghai 200092, China
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