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Geng W, Liu H, Yan Z, Ji J, Wang F, Yang R. A novel dual-model photoelectrochemical/electrochemical sensor based on Z-scheme TiO 2 disks/methylene blue for kanamycin detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 38973362 DOI: 10.1039/d4ay01023j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Herein, a new dual-model photoelectrochemical (PEC)/electrochemical (EC) sensor based on Z-scheme titanium dioxide (TiO2) disk/methylene blue (MB) sensibilization for the detection of kanamycin (Kana) was developed. Metal-organic framework-derived porous TiO2 disks were synthesized and exhibited excellent anodic photocurrent under visible light excitation. Subsequently, amino-labeled double-stranded DNA (dsDNA) was introduced into the modified electrode. Photocurrent was enhanced with MB embedded in dsDNA to form Z-scheme TiO2/MB sensibilization. When the target, Kana, was present, it specifically bound to the aptamer in the dsDNA, leading to the disruption of the dsDNA structure and the release of MB. This release of MB and the increase in target spatial resistance resulted in a significant weakening of PEC signal and a decreased oxidation peak current of MB. The PEC sensor successfully detected Kana in the range of 2-1000 pM with an LOD of 0.17 pM. Meanwhile, the EC sensor for Kana detection showed a linear range of 5-500 pM with an LOD of 1.8 pM. Additionally, the sensor exhibited excellent selectivity, reproducibility, stability, and good recoveries when applied to milk and honey samples. As a result, this method has the potential for application in ensuring food safety through the rapid determination of antibiotics in food.
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Affiliation(s)
- Wenchao Geng
- School of Chemical and Printing Dyeing Engineering, Henan University of Engineering, Zhengzhou, 451191, China.
| | - Huimin Liu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhiyi Yan
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China.
| | - Jiangying Ji
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China.
| | - Fei Wang
- School of Chemical and Printing Dyeing Engineering, Henan University of Engineering, Zhengzhou, 451191, China.
| | - Ruiying Yang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China.
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Li Y, Liu LE, Han H, Yuan X, Ji J, Xue L, Wu Y, Yang R. A signal-switchable photoelectrochemical biosensor for ultrasensitive detection of long non-coding RNA in cancer cells. Talanta 2024; 273:125878. [PMID: 38492286 DOI: 10.1016/j.talanta.2024.125878] [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: 12/02/2023] [Revised: 01/12/2024] [Accepted: 03/04/2024] [Indexed: 03/18/2024]
Abstract
Long non-coding RNA (LncRNA) as an emerging tumor biomarker plays a key factor in the early diagnosis of cancer. Herein, an innovative signal-switchable photoelectrochemical (PEC) biosensor based on ZrO2@CuO bimetallic oxides and T7 Exo-assisted signal amplification is reported for the ultrasensitive and selective detection of lncRNA (HOX gene antisense intergenic RNA, HOTAIR) in cancer cells. Firstly, MOFs-derived TiO2 nanodisks as an excellent photoactive material show an anodic background signal. When target lncRNA exists, the abundant auxiliary DNA1 is freed from T7 Exo-assisted cycle signal amplification, and then competitively hybridizes with auxiliary DNA2 on the electrode. Subsequently, bimetallic MOFs-derived ZrO2@CuO octahedra with a high specific surface area and porous structure are introduced into TiO2 nanodisks-modified biosensor, which appears a cathodic photocurrent and achieves a switchable signal. The developed signal-switchable PEC biosensor shows ultrasensitive detection of lncRNA HOTAIR with a detection limit of 0.12 fM, and can eliminate the false interference. Importantly, the established PEC biosensor has good correlation with RT-qPCR analysis (P < 0.05) for the quantification of lncRNA HOTAIR in cancer cells, which has great potential application for biomarker detection in the early diagnosis of cancer.
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Affiliation(s)
- Yuling Li
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Li-E Liu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Hangchen Han
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xinxin Yuan
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Jiangying Ji
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Linsheng Xue
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Ruiying Yang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
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Huang J, Jia X, Wang Y, Qiao Y, Jiang X. Heterojunction-Mediated Co-Adjustment of Band Structure and Valence State for Achieving Selective Regulation of Semiconductor Nanozymes. Adv Healthc Mater 2024:e2400401. [PMID: 38609000 DOI: 10.1002/adhm.202400401] [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: 02/01/2024] [Revised: 03/21/2024] [Indexed: 04/14/2024]
Abstract
Improving reaction selectivity is the next target for nanozymes to mimic natural enzymes. Currently, the majority of strategies in this field are exclusively applicable to metal-organic-based or organic-based nanozymes, while limited in regulating metal oxide-based semiconductor nanozymes. Herein, taking semiconductor Co3O4 as an example, a heterojunction strategy to precisely regulate nanozyme selectivity by simultaneously regulating three vital factors including band structure, metal valence state, and oxygen vacancy content is proposed. After introducing MnO2 to form Z-scheme heterojunctions with Co3O4 nanoparticles, the catalase (CAT)-like and peroxidase (POD)-like activities of Co3O4 can be precisely regulated since the introduction of MnO2 affects the position of the conduction bands, preserves Co in a higher oxidation state (Co3+), and increases oxygen vacancy content, enabling Co3O4-MnO2 exhibit improved CAT-like activity and reduced POD-like activity. This study proposes a strategy for improving reaction selectivity of Co3O4, which contributes to the development of metal oxide-based semiconductor nanozymes.
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Affiliation(s)
- Jiahao Huang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiaodan Jia
- Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yue Wang
- Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yue Qiao
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130000, China
| | - Xiue Jiang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin, 300071, China
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Cao L, Zhou Y, Gao L, Yin H, Zhang M, Zhang H, Ju P, Dou K, Ai S. Ascorbic Acid Induced the Improved Oxygen Vacancy Defects of Bi 4O 5Br 2 and Its Application on Photoelectrochemical Detection of DNA Demethylase MBD2 with Improved Detection Sensitivity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306365. [PMID: 38009777 DOI: 10.1002/smll.202306365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/20/2023] [Indexed: 11/29/2023]
Abstract
Oxygen vacancy defects (OVs) are one of the main strategies for nanomaterials modification to improve the photoactivity, but current methods for fabricating OVs are usually complicated and harsh. It is important to develop simple, rapid, safe, and mild methods to fabricate OVs. By studying the effects of different weak reducing agents, the concentration of the reducing agent and the reaction time on fabrication of OVs, it is found that L-ascorbic acid (AA) gently and rapidly induces the increase of OVs in Bi4O5Br2 at room temperature. The increased OVs not only improve the adsorption of visible light, but also enhance the photocurrent response. Based on this, the preparation of OVs in Bi4O5Br2 is employed to the development of a photoelectrochemical biosensor for the detection of DNA demethylase of methyl-CpG binding domain protein 2 (MBD2). The biosensor shows a wide linear range of 0.1-400 ng mL-1 and a detection limit as low as 0.03 ng mL-1 (3σ). In addition, the effect of plasticizers on MBD2 activity is evaluated using this sensor. This work not only provides a novel method to prepare OVs in bismuth rich materials, but also explores a new novel evaluation tool for studying the ecotoxicological effects of contaminants.
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Affiliation(s)
- LuLu Cao
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Yunlei Zhou
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Lanlan Gao
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Huanshun Yin
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Miao Zhang
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Haowei Zhang
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Peng Ju
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, P. R. China
| | - Kunpeng Dou
- College of Information Science and Engineering, Ocean University of China, Qingdao, 266061, P. R. China
| | - Shiyun Ai
- College of Chemistry and Material Science, Key Laboratory of Low-Carbon and Green Agriculture Chemistry in Universities of Shandong, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, 271018, P. R. China
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Li T, Zhang J, Bu P, Wu H, Guo J, Guo J. Multi-modal nanoprobe-enabled biosensing platforms: a critical review. NANOSCALE 2024; 16:3784-3816. [PMID: 38323860 DOI: 10.1039/d3nr03726f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Nanomaterials show great potential for applications in biosensing due to their unique physical, chemical, and biological properties. However, the single-modal signal sensing mechanism greatly limits the development of single-modal nanoprobes and their related sensors. Multi-modal nanoprobes can realize the output of fluorescence, colorimetric, electrochemical, and magnetic signals through composite nanomaterials, which can effectively compensate for the defects of single-modal nanoprobes. Following the multi-modal nanoprobes, multi-modal biosensors break through the performance limitation of the current single-modal signal and realize multi-modal signal reading. Herein, the current status and classification of multi-modal nanoprobes are provided. Moreover, the multi-modal signal sensing mechanisms and the working principle of multi-modal biosensing platforms are discussed in detail. We also focus on the applications in pharmaceutical detection, food and environmental fields. Finally, we highlight this field's challenges and development prospects to create potential enlightenment.
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Affiliation(s)
- Tong Li
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiani Zhang
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Pengzhi Bu
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Haoping Wu
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiuchuan Guo
- University of Electronic Science and Technology of China, Chengdu, China.
| | - Jinhong Guo
- School of Sensing Science and Engineering, Shanghai Jiao Tong, University, Shanghai, China.
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