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Rydberg M, Bruening ML, Manicke NE. Paper Spray Mass Spectrometry with On-Paper Electrokinetic Manipulations: Part-Per-Trillion Detection of Per/Polyfluoroalkyl Substances in Water and Opioids in Urine. Angew Chem Int Ed Engl 2024; 63:e202401729. [PMID: 38657037 DOI: 10.1002/anie.202401729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
We developed a simple, paper-based device that enables sensitive detection by mass spectrometry (MS) without solid phase extraction or other sample preparation. Using glass fiber filter papers within a 3D printed holder, the device employs electrokinetic manipulations to stack, separate, and desalt charged molecules on paper prior to spray into the MS. Due to counter-balanced electroosmotic flow and electrophoresis, charged analytes stack on the paper and desalting occurs in minutes. One end of the paper strip was cut into a sharp point and positioned near the inlet of a MS. The stacked analyte bands move toward the paper tip with the EOF where they are ionized by paper spray. The device was applied to analysis of PFAS in tap water with sub part-per-trillion detection limits in less than ten minutes with no sample pretreatment. Analysis of opioids in urine also occurs in minutes. The crucial parameters to enable stacking, separation, and MS ionization of both positively and negatively charged analytes were determined and optimized. Experimental and computational modeling studies confirm the electrokinetic stacking and analyte transport mechanisms. On-paper separations were carried out by stacking analyte bands at different locations depending on their electrophoretic mobility, achieving baseline separation in some cases.
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Affiliation(s)
- Magnus Rydberg
- Department of Chemistry and Chemical Biology, Indiana University-Purdue, University Indianapolis
| | - Merlin L Bruening
- Department of Chemical & Biomolecular Engineering, University of Notre Dame
| | - Nicholas E Manicke
- Department of Chemistry and Chemical Biology, Indiana University-Purdue, University Indianapolis
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2
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Yan XH, Ji B, Fang F, Guo XL, Zhao S, Wu ZY. Fast and sensitive smartphone colorimetric detection of whole blood samples on a paper-based analytical device. Talanta 2024; 270:125515. [PMID: 38101035 DOI: 10.1016/j.talanta.2023.125515] [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: 08/27/2023] [Revised: 11/25/2023] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Methods based on paper-based analytical devices (PAD) and smartphone photographic colorimetric detection have become representative instrument-independent point-of-care testing (POCT) platforms due to their low cost and simplicity. However, the detection of target components from whole blood sample still presents challenges in terms of field preparation of small amounts of blood sample and detection sensitivity. This paper presents a rapid online processing method for whole blood samples on PAD based on plasma separation membrane (PSM), and combined with electrokinetic stacking and selective chromatic reaction. Real-time smartphone-based colorimetric detection of free hemoglobin (FHb) and human serum albumin (HSA) was successfully demonstrated. RESULTS With the proposed method, both detections for low and high concentration analytes could be implemented. The limits of detection of 16.6 mg L-1 for FHb and 0.67 g L-1 for HSA were obtained, respectively, with RSD below 8 %. The reliability of the method was verified by the recovery test and desktop spectrophotometric method. The detection results for real blood samples were in agreement with that by clinical methods. SIGNIFICANCE AND NOVELTY The PAD method is inexpensive, simple and fast, and detection of a whole blood sample of 5 μL can be finished in 5 min. This work shows that POCT of biomarkers from whole blood with PAD is possible without using any desktop facilities.
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Affiliation(s)
- Xiang-Hong Yan
- Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Bin Ji
- The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Fang Fang
- Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Xiao-Lin Guo
- The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Shuang Zhao
- Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China.
| | - Zhi-Yong Wu
- Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China.
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3
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Wan CQ, Pang YH, Yang QY, Yang CL, Shen XF. Paper-based analytical device coupled with Bi-MOF: Electric field amplification and fluorescence sensing of glyphosate. Anal Chim Acta 2023; 1248:340930. [PMID: 36813460 DOI: 10.1016/j.aca.2023.340930] [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: 12/31/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023]
Abstract
Glyphosate, a potent herbicide wildly used in the world, involves potential hazards to human health by accumulating in the food chain. Due to its absence of chromophores and fluorophores, the rapid visual detection of glyphosate has always been difficult. Herein, a paper-based geometric field amplification device visualized by the amino-functionalized bismuth-based metal-organic framework (NH2-Bi-MOF) was constructed for sensitive fluorescence determination of glyphosate. Fluorescence of the synthesized NH2-Bi-MOF was immediately enhanced by interaction with glyphosate. The field amplification of glyphosate was implemented by coordinating the electric field and the electroosmotic flow, which was orchestrated by the geometric configuration of paper channel and the concentration of polyvinyl pyrrolidone, respectively. Under the optimal conditions, the developed method exhibited a linear range of 0.80-200 μmol L-1 with about 12500-fold signal enhancement achieved by just 100 s electric field amplification. It was applied to soil and water with recoveries between 95.7% and 105.6%, holding great prospects in on-site analysis of hazardous anions for environment safety.
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Affiliation(s)
- Chao-Qun Wan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, 214122, China
| | - Yue-Hong Pang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, 214122, China
| | - Qiu-Yu Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, 214122, China
| | - Cheng-Lin Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, 214122, China
| | - Xiao-Fang Shen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, 214122, China.
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Zhou Y, Niu J, Zhou Y, Li F. Liquid Plasticine-Based Electrokinetic Enrichment of Proteins. ChemistryOpen 2023; 12:e202200259. [PMID: 36971105 PMCID: PMC10041546 DOI: 10.1002/open.202200259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/07/2023] [Indexed: 03/29/2023] Open
Abstract
Protein analysis is an important approach for disease diagnosis, in which sample pretreatment is an essential step since protein samples are often complex and many protein biomarkers are of low abundance. Here, given the good openness and light transmission of liquid plasticine (LP), which is a liquid entity formed by SiO2 nanoparticles and encapsulated aqueous solution, we developed a LP-based field-amplified sample stacking (FASS) system for protein enrichment. The system was composed of a LP container, a sample solution and a Tris-HCl solution containing hydroxyethyl cellulose (HEC). The system design, mechanism investigation, optimization of experimental parameters and characterization of LP-FASS performance for protein enrichment were well studied. Under the optimized experimental conditions of 1 % HEC, 100 mm Tris-HCl and 100 V in the LP-FASS system, a 40-80 times enrichment of proteins was obtained in 40 min using bovine hemoglobin (BHb) as the model protein using the constructed LP-FASS system. The simultaneous enrichment of multiple proteins (phycocyanin, BHb and cytochrome C) was also realized using the system. The LP-FASS system can serve as a new platform for protein enrichment which is easy to be combined with online and offline detections.
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Affiliation(s)
- Yulin Zhou
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - Jicheng Niu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - Yan Zhou
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - Fei Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, 710049, Xi'an, P. R. China
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Karim K, Lamaoui A, Amine A. Paper-based optical sensors paired with smartphones for biomedical analysis. J Pharm Biomed Anal 2023; 225:115207. [PMID: 36584551 DOI: 10.1016/j.jpba.2022.115207] [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: 11/01/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
The traditional analytical methods used for biomedical analysis are expensive and not easy to handle and require sophisticated instruments, thus their application is limited in resource-limited settings. Due to their portability, low cost, and ability to be applied to different analytical techniques, paper-based analytical devices are becoming valuable tools for biomedical analysis. The integration of smartphones into analytical devices has provided the ability to build portable, cost-effective, straightforward analytical devices for biomedical analysis and mobile health. The key aim of this review is to emphasize the recent applications of PADs combined with a smartphone for the optical analysis of biomedical species. We started this review by highlighting the type of papers and their modifications with different materials to prepare the PADs. After that, this review presents various detection methods including colorimetry, fluorescence, and luminescence where the smartphone is used for read-out. In the end, we provided the recent applications of the analysis of different biomedical compounds such as cancer and cardiovascular biomarkers, metal ions, glucose, viruses, etc. We believe that the present review will attract a wide scientific community in the areas of analytical chemistry, sensors, and clinical testing.
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Affiliation(s)
- Khadija Karim
- Laboratoire Génie des Procedés & Environnement, Faculté des Sciences et Techniques, Hassan II University of Casablanca, B.P. 146, Mohammedia, Morocco
| | - Abderrahman Lamaoui
- Laboratoire Génie des Procedés & Environnement, Faculté des Sciences et Techniques, Hassan II University of Casablanca, B.P. 146, Mohammedia, Morocco
| | - Aziz Amine
- Laboratoire Génie des Procedés & Environnement, Faculté des Sciences et Techniques, Hassan II University of Casablanca, B.P. 146, Mohammedia, Morocco.
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Ren WQ, Ji B, Kuang Z, Fang F, Guo XL, Wu ZY. Paper-based Analytical Device for Fast Colorimetric Detection of Total Hemoglobin and Free Hemoglobin from Human Blood Sample. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Lomae A, Preechakasedkit P, Teekayupak K, Panraksa Y, Yukird J, Chailapakul O, Ruecha N. Microfluidic Paper-Based Device for Medicinal Diagnosis. Curr Top Med Chem 2022; 22:CTMC-EPUB-127355. [PMID: 36330618 DOI: 10.2174/1568026623666221103103211] [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: 05/20/2022] [Revised: 09/16/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND The demand for point-of-care testing (POCT) devices has rapidly grown since they offer immediate test results with ease of use, makingthem suitable for home self-testing patients and caretakers. However, the POCT development has faced the challenges of increased cost and limited resources. Therefore, the paper substrate as a low-cost material has been employed to develop a cost-effective POCT device, known as "Microfluidic paper-based analytical devices (μPADs)". This device is gaining attention as a promising tool for medicinal diagnostic applications owing to its unique features of simple fabrication, low cost, enabling manipulation flow (capillarydriven flow), the ability to store reagents, and accommodating multistep assay requirements. OBJECTIVE This review comprehensively examines the fabrication methods and device designs (2D/3D configuration) and their advantages and disadvantages, focusing on updated μPADs applications for motif identification. METHODS The evolution of paper-based devices, starting from the traditional devices of dipstick and lateral flow assay (LFA) with μPADs, has been described. Patterned structure fabrication of each technique has been compared among the equipment used, benefits, and drawbacks. Microfluidic device designs, including 2D and 3D configurations, have been introduced as well as their modifications. Various designs of μPADs have been integrated with many powerful detection methods such as colorimetry, electrochemistry, fluorescence, chemiluminescence, electrochemiluminescence, and SER-based sensors for medicinal diagnosis applications. CONCLUSION The μPADs potential to deal with commercialization in terms of the state-of-the-art of μPADs in medicinal diagnosis has been discussed. A great prototype, which is currently in a reallife application breakthrough, has been updated.
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Affiliation(s)
- Atchara Lomae
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Rd., Pathumwan, Bangkok 10330, Thailand
| | - Pattarachaya Preechakasedkit
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Rd., Pathumwan, Bangkok 10330, Thailand
| | - Kanyapat Teekayupak
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Yosita Panraksa
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Jutiporn Yukird
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Rd., Pathumwan, Bangkok 10330, Thailand
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Nipapan Ruecha
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Rd., Pathumwan, Bangkok 10330, Thailand
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8
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Wu ZY, Zhang F, Kuang Z, Fang F, Song YY. Fast and sensitive colorimetric detection of pigments from beverages by gradient zone electrophoresis on a paper based analytical device. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Yu Y, Fan F, Smith ZJ, Wei X. Microfluidic Paper-Based Preconcentration and Retrieval for Rapid Ribonucleic Acid Biomarker Detection and Visualization. Anal Chem 2022; 94:10764-10772. [PMID: 35858837 DOI: 10.1021/acs.analchem.2c01442] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Microfluidic paper-based analytical devices (μPADs) have attracted significant attention in the field of point-of-care (POC) diagnostics. However, the heterogeneous structure of the paper often impairs the limit of detection (LOD) for low-abundance targets when those targets are directly analyzed. One viable solution to bypass this limitation is to elevate the target concentration above the LOD on-site to reach a valid readout. Here, we developed a 3D μPADs preconcentrator (3D-μP2) to increase sample concentration by electrokinetic trapping and demonstrated its application in increasing the LOD of a downstream colorimetric assay. The three-dimensional (3D) structure of this device was composed of a loading pad, a vertical fluid path formed by stacked absorbent pads, and an ion-selective membrane of PEDOT:PSS. This novel design facilitates fast preconcentration, high capacity in sample processing, and easy target retrieval. The concentration of an exemplary target, a single-stranded DNA sequence, was increased up to 170-fold within 80 s. The LOD of the colorimetric assay to verify the DNA target was increased 3 orders of magnitude with a preconcentrated sample compared to the control. The device and its analysis equipment used in this study were all cheap and portable. Thus, the 3D-μP2 can be a powerful POC tool for sample pretreatment in resource-limited areas.
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Affiliation(s)
- Yannan Yu
- Key Laboratory of Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Fengya Fan
- School of Computer Science and Technology, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Zachary J Smith
- Key Laboratory of Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Xi Wei
- Department of Chemistry, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
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10
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Chen SJ, Tseng CC, Huang KH, Chang YC, Fu LM. Microfluidic Sliding Paper-Based Device for Point-of-Care Determination of Albumin-to-Creatine Ratio in Human Urine. BIOSENSORS 2022; 12:bios12070496. [PMID: 35884299 PMCID: PMC9313340 DOI: 10.3390/bios12070496] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/05/2022] [Accepted: 07/05/2022] [Indexed: 01/09/2023]
Abstract
A novel assay platform consisting of a microfluidic sliding double-track paper-based chip and a hand-held Raspberry Pi detection system is proposed for determining the albumin-to-creatine ratio (ACR) in human urine. It is a clinically important parameter and can be used for the early detection of related diseases, such as renal insufficiency. In the proposed method, the sliding layer of the microchip is applied and the sample diffuses through two parallel filtration channels to the reaction/detection areas of the microchip to complete the detection reaction, which is a simple method well suited for self-diagnosis of ACR index in human urine. The RGB (red, green, and blue) value intensity signals of the reaction complexes in these two reaction zones are analyzed by a Raspberry Pi computer to derive the ACR value (ALB and CRE concentrations). It is shown that the G + B value intensity signal is linearly related to the ALB and CRE concentrations with the correlation coefficients of R2 = 0.9919 and R2 = 0.9923, respectively. It is additionally shown that the ALB and CRE concentration results determined using the proposed method for 23 urine samples were collected from real suffering chronic kidney disease (CKD) patients are in fine agreement with those acquired operating a traditional high-reliability macroscale method. Overall, for point-of-care (POC) CKD diagnosis and monitoring in clinical applications, the results prove that the proposed method offers a convenient, real time, reliable, and low-spending solution for POC CKD diagnosis.
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Affiliation(s)
- Szu-Jui Chen
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan; (S.-J.C.); (K.-H.H.); (Y.-C.C.)
| | - Chin-Chung Tseng
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital Dou-Liou Branch, College of Medicine, National Cheng Kung University, Yunlin 640, Taiwan;
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Kuan-Hsun Huang
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan; (S.-J.C.); (K.-H.H.); (Y.-C.C.)
| | - Yu-Chi Chang
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan; (S.-J.C.); (K.-H.H.); (Y.-C.C.)
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan; (S.-J.C.); (K.-H.H.); (Y.-C.C.)
- Graduate Institute of Materials Engineering, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
- Correspondence: ; Tel.: +886-6-275-7575 (ext. 63321)
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Alahmad W, Sahragard A, Varanusupakul P. Online and offline preconcentration techniques on paper-based analytical devices for ultrasensitive chemical and biochemical analysis: A review. Biosens Bioelectron 2021; 194:113574. [PMID: 34474275 DOI: 10.1016/j.bios.2021.113574] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 12/24/2022]
Abstract
Microfluidic paper-based analytical devices (μPADs) have attracted much attention over the past decade. They embody many advantages, such as abundance, portability, cost-effectiveness, and ease of fabrication, making them superior for clinical diagnostics, environmental monitoring, and food safety assurance. Despite these advantages, μPADs lack the high sensitivity to detect many analytes at trace levels than other commercial analytical instruments such as mass spectrometry. Therefore, a preconcentration step is required to enhance their sensitivity. This review focuses on the techniques used to separate and preconcentrate the analytes onto the μPADs, such as ion concentration polarization, isotachophoresis, and field amplification sample stacking. Other separations and preconcentration techniques, including liquid-solid and liquid-liquid extractions coupled with μPADs, are also reviewed and discussed. In addition, the fabrication methods, advantages, disadvantages, and the performance evaluation of the μPADs concerning their precision and accuracy were highlighted and critically assessed. Finally, the challenges and future perspectives have been discussed.
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Affiliation(s)
- Waleed Alahmad
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
| | - Ali Sahragard
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Pakorn Varanusupakul
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
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Ortiz-Martínez M, Flores-DelaToba R, González-González M, Rito-Palomares M. Current Challenges and Future Trends of Enzymatic Paper-Based Point-of-Care Testing for Diabetes Mellitus Type 2. BIOSENSORS 2021; 11:482. [PMID: 34940239 PMCID: PMC8699572 DOI: 10.3390/bios11120482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 12/21/2022]
Abstract
A point-of-care (POC) can be defined as an in vitro diagnostic test that can provide results within minutes. It has gained enormous attention as a promising tool for biomarkers detection and diagnosis, as well as for screening of chronic noncommunicable diseases such as diabetes mellitus. Diabetes mellitus type 2 is one of the metabolic disorders that has grown exponentially in recent years, becoming one of the greatest challenges to health systems. Early detection and accurate diagnosis of this disorder are essential to provide adequate treatments. However, efforts to reduce incidence should remain not only in these stages but in developing continuous monitoring strategies. Diabetes-monitoring tools must be accessible and affordable; thus, POC platforms are attractive, especially paper-based ones. Paper-based POCs are simple and portable, can use different matrixes, do not require highly trained staff, and are less expensive than other platforms. These advantages enhance the viability of its application in low-income countries and hard-to-reach zones. This review aims to present a critical summary of the main components required to create a sensitive and affordable enzymatic paper-based POC, as well as an oriented analysis to highlight the main limitations and challenges of current POC devices for diabetes type 2 monitoring and future research opportunities in the field.
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Affiliation(s)
| | | | - Mirna González-González
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, NL, Mexico; (M.O.-M.); (R.F.-D.)
| | - Marco Rito-Palomares
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, NL, Mexico; (M.O.-M.); (R.F.-D.)
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Lewińska I, Kurdziałek K, Tymecki Ł. Smartphone-Assisted Protein to Creatinine Ratio Determination on a Single Paper-Based Analytical Device. Molecules 2021; 26:6282. [PMID: 34684863 PMCID: PMC8540694 DOI: 10.3390/molecules26206282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022] Open
Abstract
Proteinuria is a condition in which an excessive amount of protein is excreted in urine. It is, among others, an indicator of kidney disease or risk of cardiovascular disease. Rapid and reliable diagnosis and monitoring of proteinuria is of great importance for both patients and their physicians. For that reason, a paper-based sensor for proteinuria diagnosis was designed, optimized, and validated utilizing smartphone-assisted signal acquisition. In the first step, a few commonly employed protein assays were optimized and compared in terms of analytical performance on paper matrix. The tetrabromophenol blue method was selected as the one providing a sufficiently low limit of detection (39 mg·L-1) on the one hand and appropriate long-term stability (up to 3 months) on the other hand. The optimized assay was employed for protein-to-creatinine ratio (PCR) determination on a single paper-based sensor. For both analytes the linear ranges were within the clinically relevant range. The analytical usefulness of the developed sensors was demonstrated by a PCR recovery study in artificial urine. The obtained PCR recoveries were from ca. 80 to 150%.
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Affiliation(s)
- Izabela Lewińska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (K.K.); (Ł.T.)
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Tai WC, Chang YC, Chou D, Fu LM. Lab-on-Paper Devices for Diagnosis of Human Diseases Using Urine Samples-A Review. BIOSENSORS 2021; 11:260. [PMID: 34436062 PMCID: PMC8393526 DOI: 10.3390/bios11080260] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 12/23/2022]
Abstract
In recent years, microfluidic lab-on-paper devices have emerged as a rapid and low-cost alternative to traditional laboratory tests. Additionally, they were widely considered as a promising solution for point-of-care testing (POCT) at home or regions that lack medical infrastructure and resources. This review describes important advances in microfluidic lab-on-paper diagnostics for human health monitoring and disease diagnosis over the past five years. The review commenced by explaining the choice of paper, fabrication methods, and detection techniques to realize microfluidic lab-on-paper devices. Then, the sample pretreatment procedure used to improve the detection performance of lab-on-paper devices was introduced. Furthermore, an in-depth review of lab-on-paper devices for disease measurement based on an analysis of urine samples was presented. The review concludes with the potential challenges that the future development of commercial microfluidic lab-on-paper platforms for human disease detection would face.
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Affiliation(s)
- Wei-Chun Tai
- Department of Oral and Maxillofacial Surgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
| | - Yu-Chi Chang
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan;
| | - Dean Chou
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan;
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan;
- Graduate Institute of Materials Engineering, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
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15
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Zhai HM, Ji B, Tian SS, Fang F, Zhao S, Wu ZY. Cr speciation analysis based on electrokinetic sample pretreatment with a paper based analytical device. Talanta 2021; 234:122656. [PMID: 34364465 DOI: 10.1016/j.talanta.2021.122656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 11/25/2022]
Abstract
This work presents a new method of Cr speciation analysis based on micro sample pretreatment with a paper-based analytical device (PAD). By using electrokinetic separation and stacking on the PAD, Cr (VI) and Cr (III) can be separated and the recovered to achieve speciation analysis without have to be subjected to subtraction treatment. The separation and recovery properties of Cr (VI) and Cr (III) were characterized and optimized by UV-Vis spectrophotometry, with which the LOQ of 19.0 μg L-1 and 28.7 μg L-1, and the recoveries of 88-108% and 90-110%, were obtained for Cr (VI) and Cr (III), respectively. In addition, direct analysis of Cr (VI)/Cr (III) from an electroplating wastewater sample was also demonstrated with this method combined with atomic spectroscopy (GF-AAS and ICP-OES). This sample pretreatment method is fast, cheap and easy to be used. Combined with the high sensitivity and elemental selectivity of atomic spectroscopy and mass spectrometry, this PAD sample pretreatment method could be a compensation to their lack in speciation discrimination, and may play an important role in the speciation analysis of Cr.
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Affiliation(s)
- Hui-Min Zhai
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Bin Ji
- The First Affiliated Hospital of China Medical University, Shenyang, 110819, China
| | - Shan-Shan Tian
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Fang Fang
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Shuang Zhao
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Zhi-Yong Wu
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China.
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16
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Ng HY, Lee WC, Kung CT, Li LC, Lee CT, Fu LM. Recent Advances in Microfluidic Devices for Contamination Detection and Quality Inspection of Milk. MICROMACHINES 2021; 12:558. [PMID: 34068982 PMCID: PMC8156775 DOI: 10.3390/mi12050558] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 02/08/2023]
Abstract
Milk is a necessity for human life. However, it is susceptible to contamination and adulteration. Microfluidic analysis devices have attracted significant attention for the high-throughput quality inspection and contaminant analysis of milk samples in recent years. This review describes the major proposals presented in the literature for the pretreatment, contaminant detection, and quality inspection of milk samples using microfluidic lab-on-a-chip and lab-on-paper platforms in the past five years. The review focuses on the sample separation, sample extraction, and sample preconcentration/amplification steps of the pretreatment process and the determination of aflatoxins, antibiotics, drugs, melamine, and foodborne pathogens in the detection process. Recent proposals for the general quality inspection of milk samples, including the viscosity and presence of adulteration, are also discussed. The review concludes with a brief perspective on the challenges facing the future development of microfluidic devices for the analysis of milk samples in the coming years.
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Affiliation(s)
- Hwee-Yeong Ng
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Wen-Chin Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Chia-Te Kung
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan;
| | - Lung-Chih Li
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Chien-Te Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan
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17
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Lee WC, Ng HY, Hou CY, Lee CT, Fu LM. Recent advances in lab-on-paper diagnostic devices using blood samples. LAB ON A CHIP 2021; 21:1433-1453. [PMID: 33881033 DOI: 10.1039/d0lc01304h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lab-on-paper, or microfluidic paper-based analytical devices (μPADs), use paper as a substrate material, and are patterned with a system of microchannels, reaction zones and sensing elements to perform analysis and detection. The sample transfer in such devices is performed by capillary action. As a result, external driving forces are not required, and hence the size and cost of the device are significantly reduced. Lab-on-paper devices have thus attracted significant attention for point-of-care medical diagnostic purposes in recent years, particularly in less-developed regions of the world lacking medical resources and infrastructures. This review discusses the major advances in lab-on-paper technology for blood analysis and diagnosis in the past five years. The review focuses particularly on the many clinical applications of lab-on-paper devices, including diabetes diagnosis, acute myocardial infarction (AMI) detection, kidney function diagnosis, liver function diagnosis, cholesterol and triglyceride (TG) analysis, sickle-cell disease (SCD) and phenylketonuria (PKU) analysis, virus analysis, C-reactive protein (CRP) analysis, blood ion analysis, cancer factor analysis, and drug analysis. The review commences by introducing the basic transmission principles, fabrication methods, structural characteristics, detection techniques, and sample pretreatment process of modern lab-on-paper devices. A comprehensive review of the most recent applications of lab-on-paper devices to the diagnosis of common human diseases using blood samples is then presented. The review concludes with a brief summary of the main challenges and opportunities facing the lab-on-paper technology field in the coming years.
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Affiliation(s)
- Wen-Chin Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung, 833, Taiwan.
| | - Hwee-Yeong Ng
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung, 833, Taiwan.
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan
| | - Chien-Te Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung, 833, Taiwan.
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan.
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18
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Label-Free Protein Detection by Micro-Acoustic Biosensor Coupled with Electrical Field Sorting. Theoretical Study in Urine Models. SENSORS 2021; 21:s21072555. [PMID: 33917374 PMCID: PMC8038679 DOI: 10.3390/s21072555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/30/2021] [Accepted: 04/03/2021] [Indexed: 12/20/2022]
Abstract
Diagnostic devices for point-of-care (POC) urine analysis (urinalysis) based on microfluidic technology have been actively developing for several decades as an alternative to laboratory based biochemical assays. Urine proteins (albumin, immunoglobulins, uromodulin, haemoglobin etc.) are important biomarkers of various pathological conditions and should be selectively detected by urinalysis sensors. The challenge is a determination of different oligomeric forms of the same protein, e.g., uromodulin, which have similar bio-chemical affinity but different physical properties. For the selective detection of different types of proteins, we propose to use a shear bulk acoustic resonator sensor with an additional electrode on the upper part of the bioliquid-filled channel for protein electric field manipulation. It causes modulation of the protein concentration over time in the near-surface region of the acoustic sensor, that allows to distinguish proteins based on their differences in diffusion coefficients (or sizes) and zeta-potentials. Moreover, in order to improve the sensitivity to density, we propose to use structured sensor interface. A numerical study of this approach for the detection of proteins was carried out using the example of albumin, immunoglobulin, and oligomeric forms of uromodulin in model urine solutions. In this contribution we prove the proposed concept with numerical studies for the detection of albumin, immunoglobulin, and oligomeric forms of uromodulin in urine models.
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Pseudosterase activity-based specific detection of human serum albumin on gel. Talanta 2021; 224:121906. [PMID: 33379110 DOI: 10.1016/j.talanta.2020.121906] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 11/21/2022]
Abstract
Human serum albumin (HSA) has pseudoesterase activity. So far on gel specific detection of such property of HSA is never reported. Moreover, protein binding dyes are non-specific for albumin. However, many of such dyes are used for HSA detection. So, dye-based albumin detection on the gel is expected to generate false-positive results for HSA. In this context, we have discovered that Fast Blue BB (FBBB, 0.12%) stains specifically HSA pseudoesterase activity with 2 Naphthyl acetate (2NA) as an ester substrate. Further, neostigmine has not inhibited the pseudoesterase activity associated with HSA. Neostigmine is a known inhibitor of many true esterases like acetylcholinesterase. So, neostigmine addition offers specificity to the method developed for staining of HSA. Additionally, 2NA stains HSA better than bovine serum albumin (BSA). Exploring all these novel findings, we have devised a simple method of HSA detection on the gel, accurately where other esterases are not detected. To the best of our knowledge, our method is the first to detect HSA pseudoesterase activity specifically on gel without getting interfered by any other esterase activity. The method detects HSA better than BSA. We feel that this method will go a long way for the specific detection of HSA on the gel. It is also relevant for understanding the purity of donor human milk matrix and pharmaceutical preparation of HSA. Our method can detect 7 μM of added HSA in human urine. Therefore, our method can be proceeded further for microalbuminuria detection in days to come.
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20
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Tseng CC, Ko CH, Lu SY, Yang CE, Fu LM, Li CY. Rapid electrochemical-biosensor microchip platform for determination of microalbuminuria in CKD patients. Anal Chim Acta 2021; 1146:70-76. [PMID: 33461721 DOI: 10.1016/j.aca.2020.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 02/01/2023]
Abstract
An electrochemical-biosensor (EC-biosensor) microchip consisting of screen-printed electrodes and a double-layer reagent paper detection zone impregnated with amaranth is proposed for the rapid determination of microalbuminuria (MAU) in human urine samples. Under the action of an applied deposition potential, the amaranth is adsorbed on the electrode surface and the subsequent reaction between the modified surface and the MAU content in the urine sample prompts the formation of an inert layer on the electrode surface. The inert layer impedes the transfer of electrons and hence produces a drop in the response peak current, from which the MAU concentration can then be determined. The measurement results obtained for seven artificial urine samples with known MAU concentrations in the range of 0.1-40 mg/dL show that the measured response peak current is related to the MAU concentration with a determination coefficient of R2 = 0.991 in the low concentration range of 0.1-10 mg/dL and R2 = 0.996 in the high concentration range of 10-40 mg/dL. Furthermore, the detection results obtained for 82 actual chronic kidney disease (CKD) patients show an excellent agreement (R2 = 0.988) with the hospital analysis results. Overall, the results confirm that the proposed detection platform provides a convenient and reliable approach for performing sensitive point-of-care testing (POCT) of the MAU content in human urine samples.
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Affiliation(s)
- Chin-Chung Tseng
- Department of Internal Medicine, College of Medicine, National Cheng Kung University and Hospital, Tainan, 704, Taiwan
| | - Chien-Hsuan Ko
- Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan
| | - Song-Yu Lu
- Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan
| | - Chia-En Yang
- Office of Physical Education, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan; Graduate Institute of Materials Engineering, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan.
| | - Chi-Yu Li
- Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan
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21
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Xie MR, Cai Y, Liu YQ, Wu ZY. Sensitive colorimetric detection of Pb 2+ by geometric field amplification and surface plasmon resonance visualization. Talanta 2020; 212:120749. [PMID: 32113532 DOI: 10.1016/j.talanta.2020.120749] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 11/15/2022]
Abstract
Pb2+ is one of the major environmental pollutants, which can be visually detected by surface plasmon resonance of nanoparticles. Paper based analytical device, as a newly developed microfluidic detection platform, is featured in cost-effective and suitable for on-site analysis. In this paper, a sensitive and portable detection method for Pb2+ was proposed, in which Pb2+ was electrokinetically stacked on the paper fluidic channel by geometric field amplification effect and visualized online by glutathione-modified silver nanoparticles. Colorimetric quantification of the visualized stacking band was conducted by smart phone camera. To avoid unfavorable influence from pH change on the surface plasmon resonance visualization, field amplification effect was introduced by geometric design of the paper fluidic channel. The enriched Pb2+ was clearly visible on the paper substrate, and the stacking band intensity was about four orders of magnitude enhanced, comparing to the intensity without stacking. A linear response to Pb2+ was observed in the range of 0.3-7.0 μM (R2 = 0.997) with a limit of detection of 86 nM and a limit of quantity of 0.28 μM. The established method was used in the detection of Pb2+ from river and lake water samples, and the results were confirmed by atomic absorption spectroscopy method.
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Affiliation(s)
- Mao-Rong Xie
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Yu Cai
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Yu-Qi Liu
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Zhi-Yong Wu
- Research Center for Analytical Sciences, Chemistry Department, College of Sciences, Northeastern University, Shenyang, 110819, China.
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22
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Chawjiraphan W, Apiwat C, Segkhoonthod K, Treerattrakoon K, Pinpradup P, Sathirapongsasuti N, Pongprayoon P, Luksirikul P, Isarankura-Na-Ayudhya P, Japrung D. Sensitive detection of albuminuria by graphene oxide-mediated fluorescence quenching aptasensor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 231:118128. [PMID: 32066078 DOI: 10.1016/j.saa.2020.118128] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/12/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Albuminuria is a pathological condition wherein the human serum albumin (HSA) protein is present in abnormally excess amounts in the urine. A simple and sensitive graphene oxide-mediated fluorescence quenching aptasensor is developed to quantify albumin in urine samples and HSA in serum samples. The aptamer-bound HSA used in this aptasensor has hairpin structures, which are characteristic of the aptamer binding site. The limit of detection of the developed platform is 0.05 μg·mL-1 and the detection range is 0.1-14.0 μg·mL-1, which covers the albuminuria concentration range present in normal human urine and the urine of the patient with kidney diseases. This approach can be modified to measure HSA using a high-throughput quantification platform and portable point of care testing. In addition, the production cost for one reaction is cheaper than those for other standard automated methods. Therefore, this aptasensor has significant potential for commercialization and wide-scale public use.
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Affiliation(s)
- Wireeya Chawjiraphan
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani, Thailand
| | - Chayachon Apiwat
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani, Thailand; Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Khoonsake Segkhoonthod
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani, Thailand
| | - Kiatnida Treerattrakoon
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani, Thailand
| | - Preedee Pinpradup
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani, Thailand
| | - Nuankanya Sathirapongsasuti
- Section for Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Prapasiri Pongprayoon
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand; Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, Thailand
| | - Patraporn Luksirikul
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand; Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, Thailand
| | | | - Deanpen Japrung
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani, Thailand.
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Cai Y, Niu JC, Liu YQ, Du XL, Wu ZY. Online sample clean-up and enrichment of proteins from salty media with dynamic double gradients on a paper fluidic channel. Anal Chim Acta 2020; 1100:149-155. [DOI: 10.1016/j.aca.2019.11.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 11/20/2019] [Indexed: 10/25/2022]
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24
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Paper-based colorimetric probe for highly sensitive detection of folic acid based on open-ring form amplification of rhodamine B derivative. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.09.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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