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Wei Z, Zhang H, Zhang F, Xia J, Meng Q, Huang H, Wang Z. Construction of self-enhanced luminescence probes based on Ti 3C 2 reducibility for ultrasensitive PNK analysis. Biosens Bioelectron 2024; 256:116236. [PMID: 38608494 DOI: 10.1016/j.bios.2024.116236] [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: 01/26/2024] [Revised: 03/10/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024]
Abstract
Au nano-clusters (Au NCs) were promising electrochemiluminescence (ECL) nano-materials. However, the small size of Au NCs presented a challenge in terms of their immobilization during the construction of an ECL biosensing platform. This limitation significantly hindered the wider application of Au NCs in the ECL field. In this work, we successfully used the reducibility of Ti3C2 to fabricate in situ a self-enhanced nano-probe Ti3C2-TiO2-Au NCs. The strategy of in situ generation not only improved the immobilization of Au NCs on the probe but also eliminated the requirement of adding reducing agents during preparation. In addition, in situ generated TiO2 could serve as a co-reaction accelerator, shortening the electron transfer distance between S2O82- and Au NCs, thereby improving the utilization of intermediates and enhancing the ECL response of Au NCs. The constructed ECL sensing platform could achieve sensitive detection of polynucleotide kinase (PNK). At the same time, the 5'-end phosphate group of DNA phosphorylation could chelate with a large amount of Ti on the surface of Ti3C2, thereby achieving the goal of specific detection of PNK. The sensor based on self-enhanced ECL probes had a broad dynamic range spanning for PNK detection from 10.0 to 1.0 × 107 μU mL-1, with a limit of detection of 1.6 μU mL-1. Moreover, the ECL sensor showed satisfactory detection performance in HeLa cell lysate and serum. This study not only provided insights for addressing the issue of ECL luminescence efficiency in Au NCs but also presented novel concepts for ECL self-enhancement strategies.
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Affiliation(s)
- Zhihao Wei
- College of Chemistry and Chemical Engineering, Qingdao Application Technology Innovation Center of Photoelectric Biosensing for Clinical Diagnosis and Treatment, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Huixin Zhang
- College of Chemistry and Chemical Engineering, Qingdao Application Technology Innovation Center of Photoelectric Biosensing for Clinical Diagnosis and Treatment, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, China; School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266071, China
| | - Feifei Zhang
- College of Chemistry and Chemical Engineering, Qingdao Application Technology Innovation Center of Photoelectric Biosensing for Clinical Diagnosis and Treatment, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Jianfei Xia
- College of Chemistry and Chemical Engineering, Qingdao Application Technology Innovation Center of Photoelectric Biosensing for Clinical Diagnosis and Treatment, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Qingyang Meng
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Hongjie Huang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China.
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Qingdao Application Technology Innovation Center of Photoelectric Biosensing for Clinical Diagnosis and Treatment, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, China.
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Liu J, Shi J, Zhong M, Wang Y, Zhang X, Wang W, Chen Z, Tan Y, Xu D, Yang S, Li L. A novel electrochemical sensing method based on an amino-functionalized MXene for the rapid and selective detection of Hg 2. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:244-252. [PMID: 38105765 DOI: 10.1039/d3ay01652h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Mercury is a highly toxic element that is widely present in all types of environmental media and can accumulate in living organisms. Prolonged exposure to high levels of mercury can lead to brain damage and death, so the detection of mercury is of great importance. In this study, a cost-effective and easy-to-operate electrochemical sensing method was successfully developed based on an amino-functionalized titanium-based MXene (NH2-Ti3C2Tx) for the rapid and selective detection of Hg2+ that could have a coordination effect with the -NH2 group of NH2-Ti3C2Tx to promote the efficient accumulation of Hg2+. In this strategy, the NH2-Ti3C2Tx was first modified on glassy carbon electrodes (GCE) to fabricate the electrochemical sensor. Benefiting from the excellent electrical conductivity, abundant active sites, and strong adsorption capacity performance of the NH2-Ti3C2Tx, the NH2-Ti3C2Tx modified GCE (NH2-Ti3C2Tx/GCE) exhibited satisfactory selectivity and enhanced square wave anodic stripping voltammetry (SWASV) measurement for the rapid detection of trace amounts of Hg2+ in aqueous solutions. The electrochemical sensor was found to be capable of detecting Hg2+ with a low detection limit of 8.27 nmol L-1 and a linear range of 0.5 μmol L-1 to 50 μmol L-1. The response time of the electrochemical sensing method was 308 s. In addition, the electrochemical sensing method has good selectivity, repeatability and stability, and multiple heavy metal ions have no effect on its detection, with repeatability and stability RSDs of 1.68% and 1.43%, respectively. Furthermore, the analysis of practical water samples demonstrated that the developed method was highly practical for the actual determination of Hg2+ with recoveries in the range of 99.22-101.90%.
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Affiliation(s)
- Jinquan Liu
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Jiao Shi
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Miao Zhong
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Yating Wang
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Xinxin Zhang
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Wenyu Wang
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Zhijun Chen
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Yan Tan
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Dongyun Xu
- Hengyang Center for Disease Control and Prevention, Hengyang, Hunan, 421001, People's Republic of China
| | - Shengyuan Yang
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
| | - Le Li
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
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Yi Y, Hou J, Bi X, Luo L, Li L, You T. Simple and sensitive fluorescence sensing of methyl parathion based on the inner filter effect of p-nitrophenol on nitrogen-doped titanium carbide quantum dots. LUMINESCENCE 2023. [PMID: 38148625 DOI: 10.1002/bio.4632] [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: 08/16/2023] [Revised: 10/18/2023] [Accepted: 11/04/2023] [Indexed: 12/28/2023]
Abstract
It is of great significance to develop an effective method for methyl parathion (MP) detection. Herein, a novel nitrogen-doped titanium carbide quantum dots (N-Ti3 C2 QDs) was prepared and used to construct a simple and sensitive fluorescence sensing platform of MP by making use of inner filter effect (IFE). The prepared N-Ti3 C2 QDs can exhibit strong blue fluorescence at 434 nm. Meanwhile, MP could hydrolyze to produce p-nitrophenol (p-NP) under alkaline conditions, which showed a characteristic ultraviolet-visible (UV-visible) absorption peak at 405 nm, resulting in the fluorescence of N-Ti3 C2 QDs is effectively quenched by p-NP. In addition, the investigation of time-resolved fluorescence decays indicated that the corresponding quenching mechanism of p-NP on N-Ti3 C2 QDs is due to the IFE. After optimizing the conditions, the as-developed fluorescence sensing platform displayed wide detection range (0.1-30 μg mL-1 ) and low detection limit (0.036 μg mL-1 ) for MP, and it was also successfully applied for MP analysis in real water samples, thus it is expected that this simple, sensitive and enzyme-free sensing platform shows great applications.
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Affiliation(s)
- Yinhui Yi
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jieling Hou
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaoya Bi
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Lijun Luo
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Libo Li
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Tianyan You
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
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Zhang H, Zhou X, Zhang F, Xia J, Wang Z. Ultrasound-pretreatment combined with Ti 3C 2-TiO 2-AuNPs enhancing the electrogenerated chemiluminescence of the air-saturated luminol for exosomes detection. ULTRASONICS SONOCHEMISTRY 2023; 94:106330. [PMID: 36805412 PMCID: PMC9969320 DOI: 10.1016/j.ultsonch.2023.106330] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/30/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
It is still a great challenge to develop effective strategies to improve the low electrogenerated chemiluminescence (ECL) of air-saturated luminol. Herein, the synergistic effects of Ti3C2-TiO2-AuNPs nano hybrid and high-intensity focused ultrasound pretreatment (ultrasound-pretreatment) were used to significantly improve the ECL emission of the air-saturated luminol, and the mechanism was proposed. The ultrasound-pretreatment as a green method with the cavitation effect could form O2-• and H2O2 in situ as an initiator. TiO2 and Au nanoparticles (AuNPs) were in situ decorated on the Ti3C2 surface to form Ti3C2-TiO2-AuNPs, and it was proved as a highly efficient booster which could catalyze and aggregate H2O2 to the O2-•. The utilization rate of intermediates has been greatly improved. Exosomes as model targets can be sensitively detected by the ECL sensor. The detection limit was 195 particles μL-1. The detection results of exosomes in actual samples are satisfactory. We believe that the ultrasound-pretreatment strategy could be extended to the sensitive detection in the biological sample.
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Affiliation(s)
- Huixin Zhang
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
| | - Xin Zhou
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
| | - Feifei Zhang
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
| | - Jianfei Xia
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China.
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5
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Wei Z, Zhang H, Wang Z. High-Intensity Focused Ultrasound Combined with Ti 3C 2-TiO 2 to Enhance Electrochemiluminescence of Luminol for the Sensitive Detection of Polynucleotide Kinase. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3804-3811. [PMID: 36632668 DOI: 10.1021/acsami.2c19539] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Luminol is a classic electrochemiluminescence (ECL) luminophore. The luminol-O2 ECL system suffers from a problem, that is, the conversion rate of dissolved O2 into reactive oxygen species (ROS) is low. In this work, we used high-intensity focused ultrasound (HIFU) pretreatment combined with Ti3C2-TiO2 to construct a highly sensitive luminol-O2 ECL system for the specific detection of polynucleotide kinase (PNK) first. On the one hand, HIFU generated ROS in situ as a coreactant via the cavitation effect to boost the luminol emission. On the other hand, Ti3C2-TiO2 was prepared in situ via Ti3C2 as a reducing agent, and it can aggregate and catalyze ROS generated in situ by HIFU. Moreover, the Ti on the Ti3C2-TiO2 surface could bind to phosphate groups through chelation, thereby realizing highly specific detection of PNK. The sensor has a linear relationship range of 1.0 × 10-5 to 10.0 U mL-1, and the limit of detection is 1.48 × 10-7 U mL-1, which is superior to most existing methods. The sensor performance in HeLa cell lysate was measured with a satisfactory result. The designed ECL biosensor has potential applications in biological analysis and clinical diagnosis.
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Affiliation(s)
- Zhihao Wei
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong266071, China
| | - Huixin Zhang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong266071, China
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong266071, China
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Du L, Zhang H, Wang Z, Zhuang T, Wang Z. Boosting the electrochemiluminescence of luminol by high-intensity focused ultrasound pretreatment combined with 1T/2H MoS 2 catalysis to construct a sensitive sensing platform. ULTRASONICS SONOCHEMISTRY 2023; 92:106264. [PMID: 36521209 PMCID: PMC9768369 DOI: 10.1016/j.ultsonch.2022.106264] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/03/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
In the luminol-O2 ECL system, O2 as an endogenous coreactant has the advantages of non-toxicity and stability. Improving the efficiency to generate radicals of O2 is a challenge currently. In this work, a strategy combining physical method - ultrasound and nanomaterial with unique physicochemical properties was designed to enhance the ECL signal of luminol-O2 system. Specifically, high-intensity focused ultrasound (HIFU) pretreatment as a non-invasive method could generate ROS (H2O2, O2•-, OH•, 1O2) in situ, triggering and boosting the ECL signal of luminol. In addition, 1T/2H MoS2 with excellent catalytic activity could catalyze the H2O2 produced in situ, accelerate the oxidation of luminol and further enhance the ECL response. At the same time, combined with the catalytic hairpin assembly (CHA) reaction, the constructed ECL biosensing platform showed excellent performance for the detection of miRNA-155. The concentration range of 0.1 fM ∼ 1 nM with the detection limit as low as 0.057 fM were obtained. Furthermore, the ECL biosensor was also successfully applied to the determination of miRNA-155 in human serum samples. The established ECL sensing platform opens up a promising method for the detection of clinical biomarkers.
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Affiliation(s)
- Lin Du
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Huixin Zhang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Zhenyu Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Tingting Zhuang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Institute of Biomedical Engineering, Qingdao University, Qingdao, Shandong 266071, China.
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Lu D, Zhao H, Zhang X, Chen Y, Feng L. New Horizons for MXenes in Biosensing Applications. BIOSENSORS 2022; 12:bios12100820. [PMID: 36290957 PMCID: PMC9599192 DOI: 10.3390/bios12100820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/24/2022] [Accepted: 09/28/2022] [Indexed: 05/06/2023]
Abstract
Over the last few decades, biosensors have made significant advances in detecting non-invasive biomarkers of disease-related body fluid substances with high sensitivity, high accuracy, low cost and ease in operation. Among various two-dimensional (2D) materials, MXenes have attracted widespread interest due to their unique surface properties, as well as mechanical, optical, electrical and biocompatible properties, and have been applied in various fields, particularly in the preparation of biosensors, which play a critical role. Here, we systematically introduce the application of MXenes in electrochemical, optical and other bioanalytical methods in recent years. Finally, we summarise and discuss problems in the field of biosensing and possible future directions of MXenes. We hope to provide an outlook on MXenes applications in biosensing and to stimulate broader interests and research in MXenes across different disciplines.
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Affiliation(s)
- Decheng Lu
- Department of Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Huijuan Zhao
- Department of Materials Genome Institute, Shanghai University, Shanghai 200444, China
- Qing Wei Chang College, Shanghai University, Shanghai 200444, China
| | - Xinying Zhang
- Department of Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Yingying Chen
- Department of Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Lingyan Feng
- Department of Materials Genome Institute, Shanghai University, Shanghai 200444, China
- Shanghai Engineering Research Center of Organ Repair, Shanghai 200444, China
- Correspondence:
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Peng P, Wang S, Cai S, Cheng J, Tao D, Jaffrezic-Renault N, Guo Z. An ultrasensitive hairpin sensor based on g-C 3N 4 nanocomposite for the detection of miRNA-155 in breast cancer patient serum. Anal Bioanal Chem 2022; 414:7325-7334. [PMID: 35974199 DOI: 10.1007/s00216-022-04284-0] [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: 07/03/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/29/2022]
Abstract
Achieving the early diagnosis of breast cancer, through ultrasensitive detection of tumor marker miRNA-155, is a significant challenge. Therefore, an ultrasensitive hairpin electrochemical biosensor based on graphite-like phase carbon nitride composite was proposed. In this paper, poly(D-glucosamine) (PDG) was used as a stabilizer and reducing agent to prepare gold nanoparticles at room temperature, and then a graphite-like phase with a two-dimensional lamellar structure carbon nitride was further combined with it to obtain the poly(D-glucosamine)/gold nanoparticles/graphite-like phase carbon nitride nanocomposite (PDG/AuNPs/g-C3N4), in order to achieve the goal of signal amplification. The specific hairpin capture probe (HP) that recognized and bound miRNA-155 was then grafted. The hairpin biosensor showed a linear range of 0.1 fM-1 pM with a detection limit of 0.05 fM using differential pulse voltammetry (DPV) electrochemical analysis. Furthermore, the excellent performance hairpin electrochemical biosensor had been applied to the detection of miRNA-155 in human serum samples with good recovery.
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Affiliation(s)
- Pingping Peng
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, 430065, People's Republic of China.,School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430065, People's Republic of China
| | - Sheng Wang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Siyuan Cai
- Langfang Normal University, Langfang, 065000, China
| | - Jing Cheng
- School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430065, People's Republic of China
| | - Dan Tao
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| | - Nicole Jaffrezic-Renault
- Institute of Analytical Sciences, University of Lyon, UMR-CNRS 5280, 5, La Doua Street, 69100, Villeurbanne, France.
| | - Zhenzhong Guo
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, 430065, People's Republic of China.
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Nano-hybrid luminophores of Ti3C2TX quantum dots-gold nanoparticles based on in situ generation for sensitive electrochemiluminescence biosensing. Anal Bioanal Chem 2022; 414:6753-6760. [DOI: 10.1007/s00216-022-04235-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/10/2022] [Accepted: 07/15/2022] [Indexed: 12/29/2022]
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Liu L, Kong M, Xing Y, Wu Z, Chen Y. Atomic Layer Deposition-Made MoS 2-ReS 2 Nanotubes with Cylindrical Wall Heterojunctions for Ultrasensitive MiRNA-155 Detection. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10081-10091. [PMID: 35175026 DOI: 10.1021/acsami.1c23009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As a member of the two-dimensional transition metal dichalcogenide family, rhenium disulfide (ReS2) is a highly competitive favorite in the field of photoelectric sensors. Nevertheless, the rapid recombination of electron-hole pairs and poor electronic transmission capacity of pure ReS2 limit its wider applications. As a new attempt to optimize its inherent structure and challenge its competency boundary, in this work, a bimetallic co-chamber feeding atomic layer deposition with a precise dose regulation strategy has been used to fabricate ReS2 nanotubes (ReS2-NTs) and MoS2-ReS2 heterojunction nanotubes (MoS2-ReS2-HNTs) based on the anodic aluminum oxide template sacrifice method for the first time. These obtained NTs have at least two advantages: they have a controllable diameter (40-500 nm), definite wall thickness (1 layer to 10 layers), and desirable Mo-to-Re ratio (0 to 90%), and their electron-transfer capacity and photocurrent response can be effectively enhanced by the incorporated Mo atoms. Further experiments indicated that MoS2-ReS2-HNTs with a real Mo-to-Re ratio of 31.0% exhibits the best photocurrent response performance, by which the ultrasensitive detection of cancer-related miRNA-155 with a linear range of 10 aM to 1 nM and a detection limit of 1.8 aM is achieved.
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Affiliation(s)
- Lei Liu
- School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Mengshu Kong
- School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Youqiang Xing
- School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Ze Wu
- School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Yunfei Chen
- School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China
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