1
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Zeng Y, Gan X, Xu Z, Hu X, Hu C, Ma H, Tu H, Chai B, Yang C, Hu S, Chai Y. AIEgens-enhanced rapid sensitive immunofluorescent assay for SARS-CoV-2 with digital microfluidics. Anal Chim Acta 2024; 1298:342398. [PMID: 38462346 DOI: 10.1016/j.aca.2024.342398] [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: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Sensitive and rapid antigen detection is critical for the diagnosis and treatment of infectious diseases, but conventional ELISAs including chemiluminescence-based assays are limited in sensitivity and require many operation steps. Fluorescence immunoassays are fast and convenient but often show limited sensitivity and dynamic range. RESULTS To address the need, an aggregation-induced emission fluorgens (AIEgens) enhanced immunofluorescent assay with beads-based quantification on the digital microfluidic (DMF) platform was developed. Portable DMF devices and chips with small electrodes were fabricated, capable of manipulating droplets within 100 nL and boosting the reaction efficiency. AIEgen nanoparticles (NPs) with high fluorescence and photostability were synthesized to enhance the test sensitivity and detection range. The integration of AIEgen probes, transparent DMF chip design, and the large magnetic beads (10 μm) as capture agents enabled rapid and direct image-taking and signal calculation of the test result. The performance of this platform was demonstrated by point-of-care quantification of SARS-CoV-2 nucleocapsid (N) protein. Within 25 min, a limit of detection of 5.08 pg mL-1 and a limit of quantification of 8.91 pg mL-1 can be achieved using <1 μL sample. The system showed high reproducibility across the wide dynamic range (10-105 pg mL-1), with the coefficient of variance ranging from 2.6% to 9.8%. SIGNIFICANCE This rapid, sensitive AIEgens-enhanced immunofluorescent assay on the DMF platform showed simplified reaction steps and improved performance, providing insight into the small-volume point-of-care testing of different biomarkers in research and clinical applications.
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Affiliation(s)
- Yuping Zeng
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
| | - Xiangyu Gan
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
| | - Zhourui Xu
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
| | - Xiaoxiang Hu
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
| | - Chenxuan Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.
| | - Hanbin Ma
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China; Guangdong ACXEL Micro & Nano Tech Co., Ltd, Foshan, Guangdong province, China.
| | - Hangjia Tu
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
| | - Bao Chai
- Department of Dermatology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, 518052, China; Department of Dermatology, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518052, China.
| | - Chengbin Yang
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
| | - Siyi Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.
| | - Yujuan Chai
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
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2
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Dai H, Zhang J, Wu Y, Zhao J, Liu C, Cheng Y. Tyramine-Invertase Bioconjugate-Amplified Personal Glucose Meter Signaling for Ultrasensitive Immunoassay. Anal Chem 2024; 96:1789-1794. [PMID: 38230634 DOI: 10.1021/acs.analchem.3c05140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Highly sensitive and facile detection of low levels of protein markers is of great significance for the early diagnosis and efficacy monitoring of diseases. Herein, aided by an efficient tyramine-signal amplification (TSA) mechanism, we wish to report a simple but ultrasensitive immunoassay with signal readout on a portable personal glucose meter (PGM). In this study, the bioconjugates of tyramine and invertase (Tyr-inv), which act as the critical bridge to convert and amplify the protein concentration information into glucose, are prepared following a click chemistry reaction. Then, in the presence of a target protein, the sandwich immunoreaction between the immobilized capture antibody, the target protein, and the horseradish peroxidase (HRP)-conjugated detection antibody is specifically performed in a 96-well microplate. Subsequently, the specifically loaded HRP-conjugated detection antibodies will catalyze the amplified deposition of a large number of Tyr-inv molecules onto adjacent proteins through highly efficient TSA. Then, the deposited invertase, whose dosage can faithfully reflect the original concentration of the target protein, can efficiently convert sucrose to glucose. The amount of finally produced glucose is simply quantified by the PGM, realizing the highly sensitive detection of trace protein markers such as the carcinoembryonic antigen and alpha fetoprotein antigen at the fg/mL level. This method is simple, cost-effective, and ultrasensitive without the requirement of sophisticated instruments or specialized laboratory equipment, which may provide a universal and promising technology for highly sensitive immunoassay for in vitro diagnosis of diseases.
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Affiliation(s)
- Hui Dai
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; State Key Laboratory of New Pharmaceutical Preparations and Excipients; College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Jiangyan Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; State Key Laboratory of New Pharmaceutical Preparations and Excipients; College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Yating Wu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; State Key Laboratory of New Pharmaceutical Preparations and Excipients; College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Jingyu Zhao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; State Key Laboratory of New Pharmaceutical Preparations and Excipients; College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Chenghui Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi Province 710119, P. R. China
| | - Yongqiang Cheng
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; State Key Laboratory of New Pharmaceutical Preparations and Excipients; College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, P. R. China
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3
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Xu J, Tan H, Ma X, Su L, Zhang Z, Xiong Y. Synergistic co-catalytic nanozyme system for highly efficient one-pot colorimetric sensing at neutral pH: Combining molybdenum trioxide and Fe(III)-Modified covalent triazine framework. Anal Biochem 2024; 685:115391. [PMID: 37952895 DOI: 10.1016/j.ab.2023.115391] [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: 09/30/2023] [Revised: 11/01/2023] [Accepted: 11/05/2023] [Indexed: 11/14/2023]
Abstract
This study investigates the co-catalytic capabilities of MoO3 nanosheets in enhancing the enzyme-like catalytic activity of a two-dimensional ultrathin Fe(III)-modified covalent triazine framework (Fe-CTF) under neutral pH conditions. The unique physicochemical surface properties and two-dimensional structures of Fe-CTF enable the direct immobilization of native enzymes (glucose oxidase (GOD) and xanthine oxidase (XOD)) through adsorption, eliminating the need for chemical processes. Efficient immobilization of the native enzymes within the Fe-CTF/GOD(XOD) hybrid is achieved through multipoint attachment involving various interactions. The Fe-CTF/MoO3 co-catalytic system exhibits enzyme-mimicking activity at neutral pH and, when combined with the high catalytic activity of the immobilized native enzymes, enables the development of a colorimetric method for glucose detection. This method demonstrates excellent facilitation, rapidity, sensitivity, and selectivity, with a linear detection range of 50-1000 μM and a limit of detection of 8.8 μM for glucose. Furthermore, a straightforward one-pot colorimetric method is established for screening XOD inhibitors. The inhibitory potential of a crude extract derived from Chinese water chestnut peel on XOD activity is evaluated using this method. The findings of this study pave the way for the utilization of nanozyme/native enzyme hybrids in pH-neutral conditions for one-pot colorimetric sensing. This work contributes to the advancement of enzyme-based sensing technologies and holds promise for various applications in biosensing and biomedical research.
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Affiliation(s)
- Jingyan Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, PR China; Guangxi Key Laboratory of Food Science and Technology, College of Food and Bioengineering, Hezhou University, Hezhou, 542899, PR China
| | - Hanying Tan
- Guangxi Key Laboratory of Food Science and Technology, College of Food and Bioengineering, Hezhou University, Hezhou, 542899, PR China
| | - Xionghui Ma
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs Haikou, 571101, PR China
| | - Linjing Su
- Guangxi Key Laboratory of Food Science and Technology, College of Food and Bioengineering, Hezhou University, Hezhou, 542899, PR China.
| | - Zhi Zhang
- Guangxi Key Laboratory of Food Science and Technology, College of Food and Bioengineering, Hezhou University, Hezhou, 542899, PR China
| | - Yuhao Xiong
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, PR China; Guangxi Key Laboratory of Food Science and Technology, College of Food and Bioengineering, Hezhou University, Hezhou, 542899, PR China.
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4
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Liu L, Chang Y, Lou J, Zhang S, Yi X. Overview on the Development of Alkaline-Phosphatase-Linked Optical Immunoassays. Molecules 2023; 28:6565. [PMID: 37764341 PMCID: PMC10536125 DOI: 10.3390/molecules28186565] [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: 07/21/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
The drive to achieve ultrasensitive target detection with exceptional efficiency and accuracy requires the advancement of immunoassays. Optical immunoassays have demonstrated significant potential in clinical diagnosis, food safety, environmental protection, and other fields. Through the innovative and feasible combination of enzyme catalysis and optical immunoassays, notable progress has been made in enhancing analytical performances. Among the kinds of reporter enzymes, alkaline phosphatase (ALP) stands out due to its high catalytic activity, elevated turnover number, and broad substrate specificity, rendering it an excellent candidate for the development of various immunoassays. This review provides a systematic evaluation of the advancements in optical immunoassays by employing ALP as the signal label, encompassing fluorescence, colorimetry, chemiluminescence, and surface-enhanced Raman scattering. Particular emphasis is placed on the fundamental signal amplification strategies employed in ALP-linked immunoassays. Furthermore, this work briefly discusses the proposed solutions and challenges that need to be addressed to further enhance the performances of ALP-linked immunoassays.
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Affiliation(s)
- Lin Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yong Chang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Jiaxin Lou
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Shuo Zhang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Xinyao Yi
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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5
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Wang Y, Rong Y, Ma T, Li L, Li X, Zhu P, Zhou S, Yu J, Zhang Y. Photoelectrochemical sensors based on paper and their emerging applications in point-of-care testing. Biosens Bioelectron 2023; 236:115400. [PMID: 37271095 DOI: 10.1016/j.bios.2023.115400] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/01/2023] [Accepted: 05/14/2023] [Indexed: 06/06/2023]
Abstract
Point-of-care testing (POCT) technology is urgently required owing to the prevalence of the Internet of Things and portable electronics. In light of the attractive properties of low background and high sensitivity caused by the complete separation of excitation source and detection signal, the paper-based photoelectrochemical (PEC) sensors, featured with fast in analysis, disposable and environmental-friendly have become one of the most promising strategies in POCT. Therefore, in this review, the latest advances and principal issues in the design and fabrication of portable paper-based PEC sensors for POCT are systematically discussed. Primarily, the flexible electronic devices that can be constructed by paper and the reasons why they can be used in PEC sensors are expounded. Afterwards, the photosensitive materials involved in paper-based PEC sensor and the signal amplification strategies are emphatically introduced. Subsequently, the application of paper-based PEC sensors in medical diagnosis, environmental monitoring and food safety are further discussed. Finally, the main opportunities and challenges of paper-based PEC sensing platforms for POCT are briefly summarized. It provides a distinct perspective for researchers to construct paper-based PEC sensors with portable and cost-effective, hoping to enlighten the fast development of POCT soon after, as well as benefit human society.
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Affiliation(s)
- Yixiang Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yumeng Rong
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Tinglei Ma
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Lin Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Xu Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Peihua Zhu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Shuang Zhou
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China.
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China.
| | - Yan Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China; Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Qingdao University of Science and Technology, Qingdao, 266042, China.
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6
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Nandhakumar P, Bhatia A, Lee NS, Yoon YH, Yang H. Rapid nanocatalytic reaction using antibody-conjugated gold nanoparticles for simple and sensitive detection of parathyroid hormone. Int J Biol Macromol 2023; 241:124574. [PMID: 37100334 DOI: 10.1016/j.ijbiomac.2023.124574] [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: 02/27/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
Biomolecule-conjugated metal nanoparticles (NPs) have been primarily used as colorimetric labels in affinity-based bioassays for point-of-care testing. A facile electrochemical detection scheme using a rapid nanocatalytic reaction of a metal NP label is required to achieve more quantitative and sensitive point-of-care testing. Moreover, all the involved components should be stable in their dried form and solution. This study developed a stable component set that allows for rapid and simple nanocatalytic reactions combined with electrochemical detection and applied it for the sensitive detection of parathyroid hormone (PTH). The component set consists of an indium-tin oxide (ITO) electrode, ferrocenemethanol (FcMeOH), antibody-conjugated Au NPs, and ammonia borane (AB). Despite being a strong reducing agent, AB is selected because it is stable in its dried form and solution. The slow direct reaction between FcMeOH+ and AB provides a low electrochemical background, and the rapid nanocatalytic reaction allows for a high electrochemical signal. Under optimal conditions, PTH could be quantified in a wide range of concentrations in artificial serum, with a detection limit of ~0.5 pg/mL. Clinical validation of the developed PTH immunosensor using real serum samples indicates that this novel electrochemical detection scheme is promising for quantitative and sensitive immunoassays for point-of-care testing.
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Affiliation(s)
- Ponnusamy Nandhakumar
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Aman Bhatia
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Nam-Sihk Lee
- EONE Laboratories, Incheon 22014, Republic of Korea
| | | | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea.
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7
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Zhang L, Wu H, Chen Y, Zhang S, Song M, Liu C, Li J, Cheng W, Ding S. Target response controlled enzyme activity switch for multimodal biosensing detection. J Nanobiotechnology 2023; 21:122. [PMID: 37031177 PMCID: PMC10082497 DOI: 10.1186/s12951-023-01860-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/16/2023] [Indexed: 04/10/2023] Open
Abstract
How to achieve delicate regulation of enzyme activity and empower it with more roles is the peak in the field of enzyme catalysis research. Traditional proteases or novel nano-enzymes are unable to achieve stimulus-responsive activity modulation due to their own structural limitations. Here, we propose a novel Controllable Enzyme Activity Switch, CEAS, based on hemin aggregation regulation, to deeply explore its regulatory mechanism and develop multimodal biosensing applications. The core of CEAS relies on the dimerizable inactivation of catalytically active center hemin and utilizes a DNA template to orderly guide the G4-Hemin DNAzyme to tightly bind to DNA-Hemin, thereby shutting down the catalytic ability. By customizing the design of the guide template, different target stimulus responses lead to hemin dimerization dissociation and restore the synergistic catalysis of G4-Hemin and DNA-Hemin, thus achieving a target-regulated enzymatic activity switch. Moreover, the programmability of CEAS allowed it easy to couple with a variety of DNA recognition and amplification techniques, thus developing a series of visual protein detection systems and highly sensitive fluorescent detection systems with excellent bioanalytical performance. Therefore, the construction of CEAS is expected to break the limitation of conventional enzymes that cannot be targetable regulated, thus enabling customizable enzymatic reaction systems and providing a new paradigm for controllable enzyme activities.
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Affiliation(s)
- Lu Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Haiping Wu
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yirong Chen
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Songzhi Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Mingxuan Song
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Changjin Liu
- Department of Laboratory Medicine, The Fifth People's Hospital of Chongqing, Chongqing, 400062, China
| | - Jia Li
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Wei Cheng
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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8
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Shao Y, Zhou Y, Chen N, Xu W, Zhou H, Lai W, Huang X, Xiang X, Ye Q, Zhang J, Wang J, Parak WJ, Wu Q, Ding Y. Synthesizing Submicron Polyelectrolyte Capsules to Boost Enzyme Immobilization and Enhance Enzyme-Based Immunoassays. ACS OMEGA 2023; 8:12393-12403. [PMID: 37033870 PMCID: PMC10077544 DOI: 10.1021/acsomega.3c00180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/10/2023] [Indexed: 06/19/2023]
Abstract
Polyelectrolyte capsules (PCs) exhibit attractive superiorities in enzyme immobilization, including providing a capacious microenvironment for enzyme conformational freedom, highly effective mass transfer, and protecting enzymes from the external environment. Herein, we provide the first systemic evaluation of submicron PCs (SPCs, 500 nm) for enzyme immobilization. The catalytic kinetics results show that SPC encapsulation affected the affinities of enzymes and substrates but significantly enhanced their catalytic activity. The stability test indicates that SPC-encapsulated horseradish peroxidase (HRP) exhibits ultrahigh resistance to external harsh conditions and has a longer storage life than that of soluble HRP. The proposed encapsulation strategy enables 7.73-, 2.22-, and 11.66-fold relative activities when working at a pH as low as 3, at a NaCl concentration as high as 500 mM, and at a trypsin concentration as high as 10 mg/mL. We find that SPC encapsulation accelerates the cascade reaction efficiency of HRP and glucose oxidase. Owing to SPCs enhancing the catalytic activity of the loaded enzymes, we established an amplified enzyme-linked immunosorbent assay (ELISA) for the detection of Escherichia coli O157:H7 using HRP-loaded SPCs. The detection sensitivity of SPC-improved ELISA was found to be 280 times greater than that of conventional HRP-based ELISA. Altogether, we provide an elaborate evaluation of 500 nm SPCs on enzyme immobilization and its application in the ultrasensitive detection of foodborne pathogens. This evaluation provides evidence to reveal the potential advantage of SPCs on enzyme immobilization for enzyme-based immunoassays. It has excellent biological activity and strong stability and broadens the application prospect in urine, soy sauce, sewage, and other special samples.
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Affiliation(s)
- Yanna Shao
- Department
of Food Science and Engineering, Institute of Food Safety and Nutrition,
College of Science & Engineering, College of Life Science and
Technology, Jinan University, Guangzhou 510632, China
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Yaofeng Zhou
- Center
for Hybrid Nanostructures (CHyN), Universität Hamburg, 22607 Hamburg, Germany
- State
Key Laboratory of Food Science and Technology, School of Food Science
and Technology, Nanchang University, Nanchang 330047, China
| | - Nuo Chen
- Department
of Food Science and Engineering, Institute of Food Safety and Nutrition,
College of Science & Engineering, College of Life Science and
Technology, Jinan University, Guangzhou 510632, China
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Wenxing Xu
- Department
of Food Science and Engineering, Institute of Food Safety and Nutrition,
College of Science & Engineering, College of Life Science and
Technology, Jinan University, Guangzhou 510632, China
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Huan Zhou
- Department
of Food Science and Engineering, Institute of Food Safety and Nutrition,
College of Science & Engineering, College of Life Science and
Technology, Jinan University, Guangzhou 510632, China
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Weihua Lai
- State
Key Laboratory of Food Science and Technology, School of Food Science
and Technology, Nanchang University, Nanchang 330047, China
| | - Xiaolin Huang
- State
Key Laboratory of Food Science and Technology, School of Food Science
and Technology, Nanchang University, Nanchang 330047, China
| | - Xinran Xiang
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Qinghua Ye
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Jumei Zhang
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Juan Wang
- College
of Food Science, South China Agricultural
University, Guangzhou 510432, China
| | - Wolfgang J. Parak
- Center
for Hybrid Nanostructures (CHyN), Universität Hamburg, 22607 Hamburg, Germany
| | - Qingping Wu
- Institute
of Microbiology; State Key Laboratory of Applied Microbiology Southern
China; Key Laboratory of Agricultural Microbiomics and Precision Application,
Ministry of Agriculture and Rural Affairs; Guangdong Provincial Key
Laboratory of Microbial Safety and Health, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Yu Ding
- Department
of Food Science and Engineering, Institute of Food Safety and Nutrition,
College of Science & Engineering, College of Life Science and
Technology, Jinan University, Guangzhou 510632, China
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9
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Xiong Y, Su L, Zhang Z, Zhao S, Ye F. Dipeptide Surface Modification and Ultrasound Boosted Phosphatase-Like Activity of the Ceria Nanozyme: Dual Signal Enhancement for Colorimetric Sensors. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:525-535. [DOI: 10.1021/acssuschemeng.2c04729] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Affiliation(s)
- Yuhao Xiong
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin 541004, P. R. China
- College of Food and Bioengineering, Hezhou University, Hezhou 542899, P. R. China
| | - Linjing Su
- College of Food and Bioengineering, Hezhou University, Hezhou 542899, P. R. China
| | - Zhi Zhang
- College of Food and Bioengineering, Hezhou University, Hezhou 542899, P. R. China
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin 541004, P. R. China
| | - Fanggui Ye
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin 541004, P. R. China
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10
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Zhou L, Liu Y, Lu Y, Zhou P, Lu L, Lv H, Hai X. Recent Advances in the Immunoassays Based on Nanozymes. BIOSENSORS 2022; 12:1119. [PMID: 36551085 PMCID: PMC9776222 DOI: 10.3390/bios12121119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
As a rapid and simple method for the detection of multiple targets, immunoassay has attracted extensive attention due to the merits of high specificity and sensitivity. Notably, enzyme-linked immunosorbent assay (ELISA) is a widely used immunoassay, which can provide high detection sensitivity since the enzyme labels can promote the generation of catalytically amplified readouts. However, the natural enzyme labels usually suffer from low stability, high cost, and difficult storage. Inspired by the advantages of superior and tunable catalytic activities, easy preparation, low cost, and high stability, nanozymes have arisen to replace the natural enzymes in immunoassay; they also possess equivalent sensitivity and selectivity, as well as robustness. Up to now, various kinds of nanozymes, including mimic peroxidase, oxidase, and phosphatase, have been incorporated to construct immunosensors. Herein, the development of immunoassays based on nanozymes with various types of detection signals are highlighted and discussed in detail. Furthermore, the challenges and perspectives of the design of novel nanozymes for widespread applications are discussed.
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11
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Huang J, Wei F, Cui Y, Hou L, Lin T. Fluorescence immunosensor based on functional nanomaterials and its application in tumor biomarker detection. RSC Adv 2022; 12:31369-31379. [PMID: 36349017 PMCID: PMC9624183 DOI: 10.1039/d2ra04989a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/19/2022] [Indexed: 09/29/2023] Open
Abstract
An immunosensor is defined as an analytical device that detects the binding of an antigen to its specific antibody by coupling an immunochemical reaction to the surface of a device called a transducer. Fluorescence immunosensing is one of the most promising immunoassays at present, and has the advantages of simple operation, fast response and high stability. A traditional fluorescence immunosensor often uses an enzyme-labelled antibody as a recognition unit and an organic dye as a fluorescence probe, so it is easily affected by environmental factors with low sensitivity. Nanomaterials have unique photostability, catalytic properties and biocompatibility, which open up a new path for the construction of stable and sensitive fluorescence immunosensors. This paper briefly introduces different kinds of immunosensors and the role of nanomaterials in the construction of immunosensors. The significance of fluorescent immunosensors constructed from functional nanomaterials to detect tumor biomarkers was analyzed, and the strategies to further improve the performance of fluorescent immunosensors and their future development trend were summarized.
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Affiliation(s)
- Juanjuan Huang
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University Guilin 541004 P. R. China
| | - Fenghuang Wei
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University Guilin 541004 P. R. China
| | - Yuling Cui
- Jinan Center for Food and Drug Control Jinan 250102 Shandong China
| | - Li Hou
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University Guilin 541004 P. R. China
| | - Tianran Lin
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University Guilin 541004 P. R. China
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12
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Lan X, Zhu L, Chen K, Huang K, Xu W. The whole-process-evolution immunosensor driven by functional nucleic acids. Sci Bull (Beijing) 2022; 67:1820-1822. [PMID: 36546290 DOI: 10.1016/j.scib.2022.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xinyue Lan
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Beijing 100193, China; Key Laboratory of Agricultural Genetically Modified Organisms Safety Evaluation (Edible) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Longjiao Zhu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Beijing 100193, China
| | - Keren Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Beijing 100193, China; Key Laboratory of Agricultural Genetically Modified Organisms Safety Evaluation (Edible) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Kunlun Huang
- Key Laboratory of Agricultural Genetically Modified Organisms Safety Evaluation (Edible) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Beijing 100193, China; Key Laboratory of Agricultural Genetically Modified Organisms Safety Evaluation (Edible) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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13
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Emerging biosensors to detect aflatoxin M1 in milk and dairy products. Food Chem 2022; 398:133848. [DOI: 10.1016/j.foodchem.2022.133848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/17/2022] [Accepted: 07/31/2022] [Indexed: 11/23/2022]
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14
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Xu X, Chao M, Guo X, Kuang H, Liu L, Xu L, Xu C. Rapid and sensitive detection of tert-butylhydroquinone in soybean oil using a gold-based paper sensor. Analyst 2022; 147:1906-1914. [PMID: 35352722 DOI: 10.1039/d2an00265e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
tert-Butylhydroquinone (TBHQ) residues in foods pose a threat to human health. Therefore, it is necessary to develop a rapid method for TBHQ detection. In this study, a sensitive monoclonal antibody 5C3 (IgG2a subclass) against TBHQ was produced. It possessed a half maximal inhibitory concentration of 7.43 ng mL-1. A gold nanoparticle-based immunochromatographic assay (ICA) was established for the rapid and sensitive screening of TBHQ in soybean oil. Qualitative analysis results were obtained within 10 min and observed with the naked eye. The visual limit of detection (LOD) was 50 ng g-1 and the cut-off value was 1000 ng g-1. A hand-held strip reader was used for quantitative analysis, in which the calculated LOD was defined as 18.68 ng g-1. The average recoveries of TBHQ ranged from 89.55% ± 2.70% to 100.66% ± 3.02% for soybean oil, with a coefficient of variation of 2.89%-7.05%. Therefore, our developed ICA is a useful tool for the rapid and on-site detection of TBHQ in real food samples.
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Affiliation(s)
- Xinxin Xu
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Mengjia Chao
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Xin Guo
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Hua Kuang
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Liqiang Liu
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Liguang Xu
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Chuanlai Xu
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. .,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
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15
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Peng P, Liu C, Li Z, Xue Z, Mao P, Hu J, Xu F, Yao C, You M. Emerging ELISA Derived Technologies for in vitro Diagnostics. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Gavrilaș S, Ursachi CȘ, Perța-Crișan S, Munteanu FD. Recent Trends in Biosensors for Environmental Quality Monitoring. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22041513. [PMID: 35214408 PMCID: PMC8879434 DOI: 10.3390/s22041513] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 05/07/2023]
Abstract
The monitoring of environmental pollution requires fast, reliable, cost-effective and small devices. This need explains the recent trends in the development of biosensing devices for pollutant detection. The present review aims to summarize the newest trends regarding the use of biosensors to detect environmental contaminants. Enzyme, whole cell, antibody, aptamer, and DNA-based biosensors and biomimetic sensors are discussed. We summarize their applicability to the detection of various pollutants and mention their constructive characteristics. Several detection principles are used in biosensor design: amperometry, conductometry, luminescence, etc. They differ in terms of rapidity, sensitivity, profitability, and design. Each one is characterized by specific selectivity and detection limits depending on the sensitive element. Mimetic biosensors are slowly gaining attention from researchers and users due to their advantages compared with classical ones. Further studies are necessary for the development of robust biosensing devices that can successfully be used for the detection of pollutants from complex matrices without prior sample preparation.
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Li M, Wang Y, Hu H, Feng Y, Zhu S, Li C, Feng N. A dual-readout sandwich immunoassay based on biocatalytic perovskite nanocrystals for detection of prostate specific antigen. Biosens Bioelectron 2022; 203:113979. [PMID: 35114470 DOI: 10.1016/j.bios.2022.113979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/20/2021] [Accepted: 01/06/2022] [Indexed: 02/06/2023]
Abstract
Nanozymes have been regarded as an excellent alternative for natural enzymes because of their high stability, low cost, and high activity. However, their use in disease diagnosis is still challenging, since the complex biological samples foul the nanozymes' surface and generate interference signals, thereby compromising the performance of nanozyme-based assays. Here, we report a dual-readout, CsPbBr3 NCs-based sandwich immunoassay for the detection of prostate specific antigen (PSA). Thanks to their excellent fluorescence and intrinsic peroxidase-like catalytic activity, the designed phospholipid-coated CsPbBr3 NCs (PL-CsPbBr3 NCs) served as an attractive dual signal generator (fluorescent and colorimetric), which is hardly achieved by other nanozymes. The Michaelis-Menten constant (KM) values of PL-CsPbBr3 NCs for H2O2 and tetramethylbenzidine are 2.85 mM and 1.42 mM, respectively. Meanwhile, the lipid shell around CsPbBr3 NCs not only greatly improves their aqueous stability, but also helps them resist the unspecific adsorption of biological impurities. Thus, the proposed dual-readout immunoassay enables precise, cost-effective, and anti-jamming detection of PSA in real serum samples with a low detection limit of 0.29 ng mL-1 (colorimetric) and 0.081 ng mL-1 (fluorescence). This enhanced immunoassay opens new insights for the application of perovskites in bioanalysis, especially for protein assay, holding great potential for disease diagnosis.
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Affiliation(s)
- Menglu Li
- Department of Urology, Affiliated Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, 214000, China
| | - Yang Wang
- Department of Urology, Affiliated Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, 214000, China
| | - Hong Hu
- Wuxi Branch of Zhongda Hospital Southeast University, Wuxi, 210018, China
| | - Yangkun Feng
- Medical College of Nantong University, Nantong, 226007, China
| | - Sha Zhu
- Department of Urology, Affiliated Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, 214000, China
| | - Chao Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Ninghan Feng
- Department of Urology, Affiliated Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, 214000, China; Medical College of Nantong University, Nantong, 226007, China.
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