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Zhang J, Luo Y, Chen Y, Lian H, Liu B, Chen C, Wei X. Copper (II)-catalyzed polydopamine mediated photothermal sensors for visual quantitative point-of-care testing. Anal Chim Acta 2024; 1325:343114. [PMID: 39244302 DOI: 10.1016/j.aca.2024.343114] [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: 07/22/2024] [Revised: 08/12/2024] [Accepted: 08/14/2024] [Indexed: 09/09/2024]
Abstract
BACKGROUND Temperature sensing is commonly used in point-of-care (POC) detection technologies, yet the portability and convenience of use are frequently compromised by the complexity of thermosensitive processes and signal transduction. Especially, multi-step target recognition reactions and temperature measurement in the reaction vessel present challenges in terms of stability and integration of detection devices. To further combine photothermal reaction and signal readout in one assay, these two processes enable to be integrated into miniaturized microfluidic chips, thereby facilitating photothermal sensing and achieving a simple visual temperature sensing as POC detection. RESULTS A copper ion (Cu2+)-catalyzed photothermal sensing system integrated onto a microfluidic distance-based analytical device (μDAD), enabling the visual, portable, and sensitive quantitative detection of multiple targets, including ascorbic acid, glutathione, and alkaline phosphatase (ALP). The polydopamine nanoparticles (PDA NPs) were synthesized by the regulation of free Cu2+ through redox or coordination reactions, facilitating the transduction of distinct photothermal response signals and providing the versatile Cu2+-responsive sensing systems. Promoted by integration with a photothermal μDAD, the system combines PDA's photothermal responsiveness and thermosensitive gas production of ammonium bicarbonate for improved sensitivity of ALP detection, reaching the detection limit of 9.1 mU/L. The system has successfully achieved on-chip detection of ALP with superior anti-interference capability and recoveries ranging from 96.8 % to 104.7 %, alongside relative standard deviations below 8.0 %. SIGNIFICANCE AND NOVELTY The μDAD design accommodated both the photothermal reaction of PDA NPs and thermosensitive gas production reaction, achieving the rapid sensing of visual distance signals. The μDAD-based Cu2+-catalyzed photothermal sensing system holds substantial potential for applications in biochemical analysis and clinical diagnostics, underscored by the versatile Cu2+ regulation mechanism for a broad spectrum of biomarkers.
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Affiliation(s)
- Jingman Zhang
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yiying Luo
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yiyu Chen
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Huiting Lian
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Bin Liu
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China; Key Laboratory of Molecular Designing and Green Conversions, Huaqiao University, Xiamen, 361021, China; Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Huaqiao University, Xiamen, 361021, China
| | - Chunnuan Chen
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China.
| | - Xiaofeng Wei
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China; Key Laboratory of Molecular Designing and Green Conversions, Huaqiao University, Xiamen, 361021, China; Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Huaqiao University, Xiamen, 361021, China.
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2
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Xue M, Cai S, Deng Y, Luo F, Huang J, Lin Z. Portable T-2 toxin biosensor based on target-responsive DNA hydrogel using water column height as readout. Talanta 2024; 276:126203. [PMID: 38718648 DOI: 10.1016/j.talanta.2024.126203] [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: 04/01/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 06/14/2024]
Abstract
T-2 toxin, a hazardous mycotoxin often present in cereals and products based on cereals, poses a substantial risk to humans and animals due to its high toxicity. The development of uncomplicated, quick and highly sensitive methods for detecting T-2 toxin is imperative. In this work, a portable sensing system was constructed using water column height as a readout device in combination with a controlled release system, which allows for an accurate quantitative analysis of T-2 toxin without the need for expensive instrumentation or skilled technicians. Hyaluronic acid (HA) hydrogel was constructed by double cross-linked DNA/aptamer hybrids with polyethyleneimine (PEI) and embedded with platinum nanoparticles (Pt NPs). The aptamer specifically bound to T-2 toxin in its presence, resulting in the disruption of the hydrogel and subsequent release of the Pt NPs. These Pt NPs were later mixed with a solution of H2O2 in a confined reaction flask, leading to the decomposition of H2O2 into O2. A glass capillary tube containing a column of red water had been inserted into the cap of the reaction flask, and the low solubility of O2 led to an increase in pressure within the reaction unit, causing the red water column to rise. There is a good linear correlation between the height of the capillary liquid level and the T-2 toxin concentration in the range of 20 ng/mL to 6 μg/mL. The system has been successfully used to detect T-2 toxin in samples of barley tea and corn.
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Affiliation(s)
- Meixiang Xue
- Fujian Provincial Key Laboratory of Ecology Toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial University, College of Environmental and Biological Engineering, Putian University, Putian, Fujian, 351100, PR China
| | - Shuangxi Cai
- Fujian Provincial Key Laboratory of Ecology Toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial University, College of Environmental and Biological Engineering, Putian University, Putian, Fujian, 351100, PR China
| | - Ye Deng
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, PR China
| | - Fang Luo
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, PR China
| | - Jianhui Huang
- Fujian Provincial Key Laboratory of Ecology Toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial University, College of Environmental and Biological Engineering, Putian University, Putian, Fujian, 351100, PR China.
| | - Zhenyu Lin
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, PR China.
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3
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Bi Y, Khan M, Liu J, Ping J, Zhu J, Wang Y, Ma Y, Yu L, Lin JM, Hu Q, Zhang G. Slippery Viscosity-Sensing Platform with Time Readout for the Detection of Hyaluronidase and Its Inhibitor. ACS Sens 2023; 8:4071-4078. [PMID: 37889801 DOI: 10.1021/acssensors.3c01190] [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] [Indexed: 10/29/2023]
Abstract
Hyaluronidase (HAase) is a biomarker for cancer, and its detection is of great significance for early diagnosis. However, the requirement of sophisticated instruments, tedious operation procedures, and labeled molecules of conventional HAase biosensing methods hampers their widespread applications. Herein, we report a portable slippery viscosity-sensing platform with time readout for the first time and demonstrate HAase and tannic acid (TA, HAase inhibitor) detection as a model system. HAase specifically cleaves hyaluronic acid (HA) and decreases HA solution viscosity, thereby shortening the aqueous droplet's sliding time on a slippery surface. Thus, the HA solution viscosity alteration due to enzymatic hydrolysis is used to quantify the HAase concentration through the difference in the sliding time of the aqueous droplets on a slippery surface. The developed HAase sensing platform exhibits high sensitivity with a minimum detection limit of 0.23 U/mL and excellent specificity without the use of specialized instruments and labeled molecules. HAase detection in actual urine samples by a standard addition method is performed as well. Moreover, the quantitative detection of TA with an IC50 value of 37.68 ± 1.38 μg/mL is achieved. As an equipment-free, label-free, and high-portability sensing platform, this method holds promise in developing a user-friendly and inexpensive point-of-care testing (POCT) device for HAase detection, and its use can be extended to analyze other analytes with different stimuli-responsive polymers for great universality and expansibility in biosensing applications.
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Affiliation(s)
- Yanhui Bi
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Mashooq Khan
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jinpeng Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Jiantao Ping
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jiankang Zhu
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan 250000, China
| | - Yunshan Wang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Yaohong Ma
- Key Laboratory for Biosensors of Shandong Province, Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Li Yu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qiongzheng Hu
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- Key Laboratory for Biosensors of Shandong Province, Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Guangyong Zhang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan 250000, China
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Chen M, Qiu Q, Qileng A, Shen H, Liu W, Liu Y. Efficient Nanozyme-Triggered Pressure Sensor for Point-of-Care Immunoassay: Visual Sensing and Time Readout Device. Anal Chem 2023; 95:11383-11390. [PMID: 37458998 DOI: 10.1021/acs.analchem.3c01547] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Point-of-care testing (POCT), with its portability and high sensitivity, is an analytical device for rapid on-site sensing and detection. In this study, a POCT device was designed for the portable detection of illegal additives by integrating a coil device that can visually sense color distance and a two-electrode electrochemical system. Real-time monitoring of pressure changes was achieved by driving CeO2@Pt/Au nanoparticle (NP)-labeled antibodies into a competitive immunoreaction, in which CeO2 and Pt/Au synergistically catalyzed the production of large amounts of O2 from H2O2, leading to a significant increase in gas within the closed chamber. Attractively, the coil device converted the pressure stimulus into visually readable change in distance for semi-quantitative detection of the target substance, while the electrical signal output caused by the changes of the solution around the electrodes achieved accurate and reliable quantification of the target. In addition, the proposed dual-mode pressure immunoassay device has acceptable selectivity, stability, and reproducibility. Herein, this portable device, which enables target concentration readings by converting pressure into multiple signals, provides an effective way to visualize POCT assays in resource-limited areas.
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Affiliation(s)
- Mengting Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Qiqian Qiu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Aori Qileng
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Haoran Shen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Weipeng Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Yingju Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
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5
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Wang J, Hua X, Jin B. Ultrasensitive Detection of Carcinoembryonic Antigen by Chitosan/Polythiophene/CdTe Electrochemical Biosensor. ACS OMEGA 2022; 7:45361-45370. [PMID: 36530283 PMCID: PMC9753643 DOI: 10.1021/acsomega.2c05950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
A facile method for the in situ fabrication of chitosan/polythiophene/CdTe (CS/PTh/CdTe) nanocomposite has been developed. It was then connected with anti-CEA (Ab), which was evoked for the electrochemical detection of carcinoembryonic antigen (CEA, Ag) within K4Fe(CN)6. The results indicate that CS/PTh/CdTe/GCE has a high selectivity for the detection of CEA with a wide linear range of 0.0001-10000 ng/mL and excellent sensitivity with a low detection limit of 40 fg/mL. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), and in situ FT-IR spectra are evoked to study the mechanism of detection of CEA via CS/PTh/CdTe/GCE. The high sensitivity of the electrochemical sensor is due to the fact that the electrochemical oxidation products of K4Fe(CN)6 can directly oxidize CdTe from a low energy state to a high energy state (CdTe)*, making CdTe more prone to be oxidized and facilitate electron transfer. The developed electrochemical biosensor can be used for the detection of real samples, providing a precise method for the detection of CEA with potential application in the clinical detection of tumors.
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6
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Shu Q, Zhu Y, Xiao Y, Chen K, Mai X, Zheng X, Yan X. A Novel Chemiluminescence Biosensor Based on Dual Aptamers Bound Nanoparticles with Multi-site Signal Amplification for Sensitive Detection of Carcinoembryonic Antigen. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Detection of hydroxypolychlorinated biphenyls using molecularly imprinted polymers as recognition unit and timer as readout. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Bioinspired nanozyme enabling glucometer readout for portable monitoring of pesticide under resource-scarce environments. CHEMICAL ENGINEERING JOURNAL 2022. [DOI: 10.1016/j.cej.2021.132243] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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9
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Song E, Tao Y, Shen H, Yang C, Tian T, Yang L, Zhu Z. A polypyrrole-mediated photothermal biosensor with a temperature and pressure dual readout for the detection of protein biomarkers. Analyst 2022; 147:2671-2677. [DOI: 10.1039/d2an00370h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel photothermal biosensor with a temperature and pressure dual readout was developed for CRP detection. The in situ synthesized polypyrrole exhibits photothermal effect under NIR light to increase temperature and pressure for portable readout.
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Affiliation(s)
- Eunyeong Song
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Engineering, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yingzhou Tao
- Integrated Chinese & Western Medicine Oncology Research Center, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Haicong Shen
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Engineering, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chaoyong Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Engineering, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tian Tian
- Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Liu Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Engineering, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi Zhu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Engineering, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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10
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Shang X, Yu J, Wang C, Du Y. An Aptasensing Strategy Using the Phosphatase‐mimic Nanozyme and pH Meter as Signal Readout. ELECTROANAL 2021. [DOI: 10.1002/elan.202100436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xudong Shang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P. R. China
- University of Chinese Academy of Sciences Beijing 100039 P. R. China
| | - Jingyuan Yu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Chang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Yan Du
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P. R. China
- University of Chinese Academy of Sciences Beijing 100039 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
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Wei M, Rao H, Niu Z, Xue X, Luo M, Zhang X, Huang H, Xue Z, Lu X. Breaking the time and space limitation of point-of-care testing strategies: Photothermometric sensors based on different photothermal agents and materials. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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12
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Tang J, Liu L, Gao S, Qin J, Liu X, Tang D. A portable thermal detection method based on the target responsive hydrogel mediated self-heating of a warming pad. Chem Commun (Camb) 2021; 57:9862-9865. [PMID: 34490870 DOI: 10.1039/d1cc03733a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple thermal aptasensing platform was devised for the sensitive detection of organophosphate pesticides (using malathion as a model target) based on the efficient self-heating reaction of a warming pad with a switchable target responsive enzyme-encapsulated three-dimensional (3D) DNA hydrogel using a portable thermometer as a signal readout in this work. The existence of the target malathion would open the catalase-3D network and lots of catalase was released from the hydrogel, which could efficiently convert H2O2 to an O2 molecule. The product O2 is the critical condition for the self-heating of the warming pad. Thereafter, the temperature was enhanced with the increasing amount of O2. The strategy displays outstanding specificity, reproducibility and stability. Moreover, this method can be easily extended to monitor other molecules using different aptamer sequences in practical applications.
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Affiliation(s)
- Juan Tang
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, 330022, P. R. China.
| | - Liping Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, 330022, P. R. China.
| | - Shan Gao
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, 330022, P. R. China.
| | - Jiao Qin
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, 330022, P. R. China.
| | - Xiaoxuan Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, 330022, P. R. China.
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education of China and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
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Gong S, Li J, Pan W, Li N, Tang B. Duplex-Specific Nuclease-Assisted CRISPR-Cas12a Strategy for MicroRNA Detection Using a Personal Glucose Meter. Anal Chem 2021; 93:10719-10726. [PMID: 34279073 DOI: 10.1021/acs.analchem.1c02478] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A CRISPR-Cas system holds great promise as a next-generation biosensing technology for molecular diagnostics. Nevertheless, the current CRISPR-Cas12a-based detection strategies always need bulky instruments or auxiliary devices to obtain a quantitative signal output, which restrains its point-of-care testing application. Herein, we proposed a duplex-specific nuclease-assisted CRISPR-Cas12a strategy to detect microRNA (miRNA) with a personal glucose meter. The target miRNA was first converted into an amplified initiator DNA via duplex-specific nuclease. Afterward, the initiator DNA activated the collateral cleavage activity of CRISPR-Cas12a to cleave the single-strand DNA (ssDNA) linker on sucrase-ssDNA-modified magnetic beads, which led to the release of sucrase. The released sucrase was collected and then utilized to catalyze sucrose to glucose, which could be quantitatively detected by a personal glucose meter. The change in the glucose signal directly reflected the concentration of miRNA, which avoided expensive equipment for signal quantification. Two different miRNAs (miRNA21 and miRNA205) could be detected by simply changing the sequence of the template strand (H strand). The developed strategy showed high sensitivity with a limit of detection (LOD) of 2.4 and 1.1 pM for miRNA21 and miRNA205, respectively. In addition, good selectivity and anti-interference ability were achieved using this method, which enabled it promising for miRNA detection at the point-of-care.
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Affiliation(s)
- Shaohua Gong
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Jingjing Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Wei Pan
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Na Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China
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14
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Sensitive detection of butyrylcholinesterase activity based on a separation-free photothermal assay. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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15
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Pressure/colorimetric dual-readout immunochromatographic test strip for point-of-care testing of aflatoxin B 1. Talanta 2021; 227:122203. [PMID: 33714473 DOI: 10.1016/j.talanta.2021.122203] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 11/23/2022]
Abstract
Immunochromatographic test strip (ITS) for point-of-care testing (POCT) has attracted prominent attention due to the advantages including rapid response, low cost and good portability. Here, we developed a sensitive ITS for detecting aflatoxin B1 (AFB1) by using dendritic platinum nanoparticles (DPNs) as novel pressure/colorimetric dual-readout probes. DPNs-labeled antibody of AFB1 were used as the signal tracer of the immunochromatographic process. After 10-min competitive immunoreaction, black color appeared on the test line of ITS due to the accumulation of DPNs, which was observed visually as a colorimetric readout for qualitation purpose. Furthermore, DPNs with peroxidase-like activity caused decomposition of hydrogen peroxide aqueous solution to produce pressure change signal in vials, which was detected by a hand-held pressure meter for quantitation purpose. With the pressure readout mode, the detection range was 0.05-10 ng mL-1, and the detection limit was 0.03 ng mL-1 (S/N = 3) for AFB1. The proposed ITS was successfully utilized for detecting AFB1 in herbal medicine samples, and the acceptable recoveries of 93.77-114.09% indicated the reliability for real sample detection. It provides a new avenue for POCT with great application potential in various area including drug and food quality control, pollutants monitoring as well as medical diagnosis.
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RAO HH, LIU HX, LUO MY, XUE X, Ming-Ming W, XUE ZH. Progress of Simple Signal Readout-based Point-of-Care Testing. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/s1872-2040(20)60069-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Mo F, Han M, Weng X, Zhang Y, Li J, Li H. Magnetic-Assisted Methylene Blue-Intercalated Amplified dsDNA for Polarity-Switching-Mode Photoelectrochemical Aptasensing. Anal Chem 2020; 93:1764-1770. [PMID: 33372772 DOI: 10.1021/acs.analchem.0c04521] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Organic dyes are typically applied as photosensitizers in photoelectrochemical (PEC) cells but have not been reported in polarity-reversal-mode PEC sensors with excellent sensitivity and accuracy. Herein, an elegant and robust PEC biosensor for carcinoembryonic antigen (CEA) has been designed by photocurrent polarity switching of CdTe quantum dots (QDs), which is obtained by embedding methylene blue (MB) into amplified double-stranded DNA (dsDNA) anchored to the superparamagnetic Fe3O4@SiO2. The target-triggered Exo III-assisted cyclic amplification strategy and in situ magnetic enrichment enable the remarkable sensitivity. The extraction of target-analogue single-stranded DNA (output DNA) contributes to high selectivity resulting from the elimination of possible interferences in real samples or matrixes. Particularly, this exclusive polarity-reversal-mode PEC aptasensing can efficiently eliminate the false-positive or false-negative signals, leading to accurate measurements. Moreover, different from the probes and layer-by-layer assembled photoelectric beacons on electrodes in advance, this rational split-type approach is doomed to help the PEC biosensor with additional merits of convenient fabrication, short time consumption, wider linearity, as well as outstanding reproducibility and stability in practical applications. In light of the ability of MB acting as a kind of signal probe in typical electrochemical sensors, certainly, this ingenious design can not only be extended to a wide variety of target monitoring but also provide new ideas for the construction of high-performance electrochemical and PEC biosensors.
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Affiliation(s)
- Fan Mo
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Min Han
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Xuan Weng
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Yuye Zhang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Jing Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Hongbo Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
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18
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Liu W, Wang X, Tai C, Yan W, Yu R, Li Y, Zhao H, Zhou F. Four-Channel Photothermal Plate Reader for High-Throughput Nanoparticle-Amplified Immunoassay. Anal Chem 2020; 92:15705-15710. [PMID: 33270418 DOI: 10.1021/acs.analchem.0c03555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We enhanced the sample throughput of microplate-based photothermal detection by using a semicylindrical prism to expand a point laser source to a long beam for illuminating multiple wells. Coupled with four epoxy-coated thermocouples in alignment with wells on a 96-well microplate, four parallel immunoassays of C-reaction protein (CRP) with antibody-conjugated gold nanoparticles can be simultaneously performed. The sample throughput is further increased by mounting the Styrofoam-enclosed microplate onto a translational/elevator stage so that immunoassays and thermocouple rinse/drying cycles can be implemented in a programmed fashion. The automated assay with three rinse/drying cycles takes only 34.5 min for four samples or 8.62 min/sample, whereas the manual mode with a single thermocouple and a point light source requires at least 66 min for just one sample. With careful calibration of the energy distribution of the expanded laser beam and controllable immersion of the thermocouples, excellent well-to-well (RSD = 1.3%) and cycle-to-cycle (RSD = 4.0%) reproducibility can be attained. The temperature changes can be correlated with the CRP concentration by the Langmuir isotherm, and the low limit of detection, 0.52 ng/mL or 4.33 pM, is well below the plasma CRP levels of both healthy people (<5 μg/mL) and patients (10-500 μg/mL). The serum CRP concentrations quantified by our plate reader are in excellent agreement with the immunoturbidimetric results, demonstrating that this cost-effective, robust, and high-throughput mode for microplate-based immunoassays is amenable to detecting biomarkers in many clinical samples.
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Affiliation(s)
- Wenwen Liu
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Xiaoying Wang
- State Key Laboratory of Biobased Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, P. R. China
| | - Chuanqi Tai
- Department of Interventional Therapy, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 25001, P. R. China
| | - Wenyuan Yan
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Ruichuang Yu
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Yanan Li
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Hui Zhao
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Feimeng Zhou
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
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19
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Guo L, Zhang YJ, Yu YL, Wang JH. In Situ Generation of Prussian Blue by MIL-53 (Fe) for Point-of-Care Testing of Butyrylcholinesterase Activity Using a Portable High-Throughput Photothermal Device. Anal Chem 2020; 92:14806-14813. [PMID: 33058681 DOI: 10.1021/acs.analchem.0c03575] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Butyrylcholinesterase (BuChE), the primary source of serum cholinesterase activity, is an indispensable biochemical marker for clinical diagnosis of liver function and organophosphorus poisoning. The requirement for bulky and expensive instruments represents a huge hindrance for point-of-care testing (POCT) of BuChE, especially in resource-limited settings. Herein, an easy-operated, economic, and portable photothermal (PT) biosensing platform for high-throughput BuChE detection was rationally designed. BuChE could "light up" the PT signal through in situ generation of Prussian blue (PB) by MIL-53 (Fe), which allowed us to translate biological signals into temperature signals. Such temperature change signals could be monitored at high throughput (six samples for a single measurement) by a miniature self-made integrated PT device via combining separable 96-well plates, a three-dimensional (3D) printed sample bracket, 808 nm lasers, and thermometers, satisfying the requirement for rapid on-site detection in a large batch with low cost. In addition, the large specific surface area, 3D network structure, and high porosity of MIL-53 (Fe) offered a beneficial platform for its reaction with enzymatic hydrolysate, resulting in high sensing sensitivity and low detection limit (0.3 U L-1), which was at least 20 000 times lower than the normal human serum BuChE activity. This facile, affordable, and broad applicability PT sensing platform provides a beneficial reference for the rational design of other disease diagnostic approaches suitable for POCT.
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Affiliation(s)
- Lan Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Ya-Jie Zhang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Yong-Liang Yu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
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20
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Cao L, Xiao H, Fang C, Zhao F, Chen Z. Electrochemical immunosensor based on binary nanoparticles decorated rGO-TEPA as magnetic capture and Au@PtNPs as probe for CEA detection. Mikrochim Acta 2020; 187:584. [PMID: 32990786 DOI: 10.1007/s00604-020-04559-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/13/2020] [Indexed: 10/23/2022]
Abstract
Using gold and magnetic nanoparticles co-decorated reduced graphene oxide-tetraethylenepentamine (rGO-TEPA/Au-MNPs) as the magnetic platform for capturing the primary antibody (Ab1), separation and preconcentration of immunocomplex, a novel homogeneous electrochemical immunosensor was successfully developed. The newly prepared magnetic rGO-TEPA/Au-MNPs, compared with MNPs, exhibited better stability and enhanced electrical conductivity attributed to rGO-TEPA, and showed higher biorecognition efficiency due to AuNPs. In addition, Au@PtNPs were prepared and modified with secondary antibody (Ab2) as an efficient signal probe for signal readout. Using carcinoembryonic antigen (CEA) as a model analyte, the prepared immunosensor demonstrated satisfactory properties like high stability, good repeatability and selectivity, wide linear range (5.0 pg mL-1~200.0 ng mL-1) as well as low detection limit (1.42 pg mL-1). The homogenous electrochemical immunosensor was applied to the detection of CEA in human serum and was found to exhibit good correlation with the reference method. Thus, the proposed rGO-TEPA/Au-MNPs-based homogenous immunoassay platform might open up a new way for biomarker diagnosis. Graphical Abstract.
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Affiliation(s)
- Liangli Cao
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China.,School of Information and Communication, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Haolin Xiao
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China.,School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Cheng Fang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Feijun Zhao
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China.,School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Zhencheng Chen
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China. .,School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, 541004, China.
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21
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Zhao Y, Bu S, Wang C, Ma C, Li Z, Zhang W, Wan J. Dual Aptamer-Copper (II) Phosphate Nanocomposite-Based Point-of-Care Biosensor for the Determination of Escherichia coli O157:H7 through Pressure Monitoring with a Hand-Held Barometer. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1817059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yinghao Zhao
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Shengjun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyou Ma
- College of Geo-Exploration Science and Technology, Jilin University, Changchun, China
| | - Zhongyi Li
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Wenhui Zhang
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
| | - Jiayu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
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22
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Distance-based quantification of miRNA-21 by the coffee-ring effect using paper devices. Mikrochim Acta 2020; 187:513. [DOI: 10.1007/s00604-020-04500-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/18/2020] [Indexed: 12/19/2022]
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23
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Tao Y, Wang W, Fu C, Luo F, Guo L, Qiu B, Lin Z. Sensitive biosensor for p53 DNA sequence based on the photothermal effect of gold nanoparticles and the signal amplification of locked nucleic acid functionalized DNA walkers using a thermometer as readout. Talanta 2020; 220:121398. [PMID: 32928417 DOI: 10.1016/j.talanta.2020.121398] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/02/2020] [Accepted: 07/08/2020] [Indexed: 01/10/2023]
Abstract
A convenient photothermal biosensor was constructed for p53 DNA sequence detection based on the high discrimination capability of locked nucleic acid and high efficiency of signal amplification strategy of DNA walkers and difference photothermal effect between aggregated and dispersed gold nanoparticles (AuNPs). The presence of target activated the DNA walkers via the high affinity between target and complementary locked nucleic acid in the probe strand, resulting in the hybridization of the walker strand and substrate strand to form a specific enzyme recognition site. Under the cleavage of the endonuclease, single-stranded DNA (ssDNA) was released to the solution. Then the walker strand bound to a new substrate strand, and the next round of cleavage was triggered. The released ssDNA enhanced the stability of AuNPs against salt-induced aggregation. Given difference photothermal effects of the aggregated AuNPs and dispersed AuNPs under the near-infrared laser, the change of the temperature was detected by a common thermometer easily, which had a linear relationship with the target concentration in the range of 2.0-120.0 pM, the detection limit was 1.4 pM (S/N = 3). The proposed photothermal assay has been applied to detect p53 DNA sequence spiked complex samples with satisfying results.
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Affiliation(s)
- Yingzhou Tao
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Weijia Wang
- Zhongshan People's Hospital, Zhongshan, Guangdong, 528403, China
| | - Caili Fu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Fang Luo
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China; College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350116, China.
| | - Longhua Guo
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Bin Qiu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Zhenyu Lin
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China.
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24
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Xue X, Luo M, Rao H, Xue Z, Wang B, Liu X, Lu X. Enhanced Thermometric Sensor for Arsenate Analysis Based on Dual Temperature Readout Signaling Strategy. Anal Chem 2020; 92:4672-4680. [PMID: 32090547 DOI: 10.1021/acs.analchem.0c00358] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
New methods for portable detection of arsenate are still in urgent need. Herein, we explored a simple but sensitive thermometric strategy for arsenate determination without complex instruments and skilled technicians. Cobalt oxyhydroxide (CoOOH) nanoflakes, can ingeniously decompose hydrogen peroxide into oxygen in a sealed reaction vessel, accompanied by marked pressure and significant temperature increase due to the exothermic reaction effect (ΔH = -98.2 kJ/mol). The increased pressure then compelled a certain amount of H2O overflowing from the drainage device into another vessel, leading to a significant temperature decrease due to the preloaded ammonium nitrate (NH4NO3) and its good dissolution endothermic effect (ΔH = 25.4 kJ/mol). In the presence of arsenate, the catalytic activity of CoOOH nanoflakes for H2O2 decomposition was inhibited dramatically, resulting in an obvious decrease of the pressure, weighting water and temperature response. The two temperature responses with increasing and decreasing feature were easily measured through a common thermometer, and exhibited an effective signaling amplification via coupling both "signal-on" and "signal-off" temperature readout elements. The obtained dual superimposing temperature readout exhibits a good linear with the concentration of arsenate with a lower detection limit (51 nM, 3.8 ppb). Compared to the inductively coupled plasma mass spectrometry, this enhanced thermometric strategy provides a simple, rapid, convenient, low cost, and portable platform for sensing arsenate in real environmental water.
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Affiliation(s)
- Xin Xue
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070 (China)
| | - Mingyue Luo
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070 (China)
| | - Honghong Rao
- School of Chemistry & Environmental Engineering, Lanzhou City University, Lanzhou, 730070 (China)
| | - Zhonghua Xue
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070 (China)
| | - Baodui Wang
- Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, 730000 (China)
| | - Xiuhui Liu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070 (China)
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070 (China)
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25
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Zhang J, Lan T, Lu Y. Translating in vitro diagnostics from centralized laboratories to point-of-care locations using commercially-available handheld meters. Trends Analyt Chem 2020; 124:115782. [PMID: 32194293 PMCID: PMC7081941 DOI: 10.1016/j.trac.2019.115782] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
There is a growing demand for high-performance point-of-care (POC) diagnostic technologies where in vitro diagnostics (IVD) is fundamental for prevention, identification, and treatment of many diseases. Over the past decade, a shift of IVDs from the centralized laboratories to POC settings is emerging. In this review, we summarize recent progress in translating IVDs from centralized labs to POC settings using commercially available handheld meters. After introducing typical workflows for IVDs and highlight innovative technologies in this area, we discuss advantages of using commercially available handheld meters for translating IVDs from centralized labs to POC settings. We then provide comprehensive coverage of different signal transduction strategies to repurpose the commercially-available handheld meters, including personal glucose meter, pH meter, thermometer and pressure meter, for detecting a wide range of targets by integrating biochemical assays with the meters for POC testing. Finally, we identify remaining challenges and offer future outlook in this area.
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Affiliation(s)
- JingJing Zhang
- State Key Laboratory of Analytical Chemistry for Life
Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing
210023, China
| | - Tian Lan
- GlucoSentient, Inc., 2100 S. Oak Street, Suite 101,
Champaign, IL 61820, USA
| | - Yi Lu
- Department of Chemistry, University of Illinois at
Urbana–Champaign, Urbana, Illinois 61801, United States
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