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Yadoung S, Shimizu S, Hongsibsong S, Nakano K, Ishimatsu R. Dopamine as a polymerizable reagent for enzyme-linked immunosorbent assay using horseradish peroxidase. Heliyon 2023; 9:e21722. [PMID: 38027909 PMCID: PMC10654240 DOI: 10.1016/j.heliyon.2023.e21722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
We demonstrate that dopamine can be used as a reagent for colorimetric enzyme-linked immunosorbent assay (ELISA) using horseradish peroxidase (HRP). Dopamine was able to be polymerized in the presence of HRP and H2O2, and black polydopamine was obtained after the enzymatic reaction. Because of the black color, the absorbance was significantly changed in the whole range of the visible light region. Here, an indirect competitive ELISA based on the polymerization of dopamine was performed to detect a fluoroquinolone antibiotic, enrofloxacin. The antibiotic is commonly used in livestock farming. The anti-antibiotics antibody was produced from egg yolk from chicken hens. In the visible range, sufficient absorbance changes of ∼0.4∼0.5 and a low background level for the ELISA response were obtained, and the 50 % inhibitory concentration value at 450 nm was determined to be 26 ppb. The performance of the indirect competitive ELISA based on the polymerization of dopamine was compared to that based on the oxidation of catechol because dopamine has a catechol skeleton. By the complex of HRP and H2O2, catechol can be oxidized to o-benzoquinone having a maximum absorption wavelength of 420 nm. It was shown that the absorbance change in the case of polydopamine was about 2.5 times higher than that of catechol, where the background levels were similar. This confirms that the polymerization of dopamine significantly enhanced the photosignal.
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Affiliation(s)
- Sumed Yadoung
- Environmental Science Program, Faculty of Science, Chiang Mai University, 50200, Thailand
| | - Shinichi Shimizu
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Surat Hongsibsong
- Environmental Science Program, Faculty of Science, Chiang Mai University, 50200, Thailand
- School of Health Sciences Research, Research Institute for Health Science, Chiang Mai University, Chiang Mai, 50200, Thailand
- Environmental, Occupational Health Sciences and Non-Communicable Diseases Center of Excellence, Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Koji Nakano
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Ryoichi Ishimatsu
- Department of Applied Physics, University of Fukui, 3-9-1 Bunkyo, Fukui, 910-8507, Japan
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2
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Parween S, Bhatnagar I, Bhosale S, Paradkar S, Michael IJ, Rao CM, Asthana A. Cross-linked chitosan biofunctionalized paper-based microfluidic device towards long term stabilization of blood typing antibodies. Int J Biol Macromol 2020; 163:1233-1239. [DOI: 10.1016/j.ijbiomac.2020.07.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/24/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
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3
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Hosseini S, Azari P, Cardenas-Benitez B, Martínez-Guerra E, Aguirre-Tostado FS, Vázquez-Villegas P, Pingguan-Murphy B, Madou MJ, Martinez-Chapa SO. A LEGO inspired fiber probe analytical platform for early diagnosis of Dengue fever. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110629. [DOI: 10.1016/j.msec.2020.110629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/18/2019] [Accepted: 01/02/2020] [Indexed: 12/20/2022]
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Fujisaki S, Shibata H, Yamada K, Suzuki K, Citterio D. Printed low-cost microfluidic analytical devices based on a transparent substrate. Analyst 2019; 144:2746-2754. [PMID: 30869086 DOI: 10.1039/c8an02304b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This work describes the development of a microfluidic analytical device prepared on a transparent OHP film substrate, named the microfluidic transparent film-based analytical device (μTFAD). Printing technologies including wax printing for microchannel patterning and inkjet printing for chemical assay component deposition have been employed for the μTFAD fabrication. The fully printed μTFAD allowed gravity-assisted pump-free transportation of the sample liquid (50 μL) and an absorbance measurement-based iron ion (Fe2+) assay using nitroso-PSAP as the colorimetric reagent within a wax-patterned microfluidic structure. By measuring absorbance values at the Fe2+-nitroso-PSAP complex-specific wavelength (756 nm), a response curve with a linear range of 0-200 μM was obtained. The limit of detection (1.18 μM) obtained with the proposed μTFADs was comparable to the results achieved with a conventional 96-well microplate assay (0.92 μM) and lower than that in the case of digital colour analysis-assisted filter paper spot tests (7.71 μM) or the absorbance analysis of refractive index-matched translucent filter paper spots (37.2 μM). In addition, highly selective Fe2+ detection has been achieved in the presence of potentially interfering metal ions (Cu2+, Co2+, Ni2+) without the use of any masking reagents, owing to the selection of the target complex-specific wavelength in the absorbance measurement on μTFADs.
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Affiliation(s)
- Shogo Fujisaki
- Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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Le S, Zhou H, Nie J, Cao C, Yang J, Pan H, Li J, Zhang Y. Fabrication of paper devices via laser-heating-wax-printing for high-tech enzyme-linked immunosorbent assays with low-tech pen-type pH meter readout. Analyst 2018; 142:511-516. [PMID: 28106171 DOI: 10.1039/c6an02422j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this work, a new method named laser-heating-wax-printing (LHWP) is described to fabricate paper devices for developing sensitive, affordable, user-friendly paper-based enzyme-linked immunosorbent assays (P-ELISAs) that initially use common pen-type pH meters for portable, quantitative readout. The LHWP enables a rapid patterning of wax in paper via one step of heating the wax layer coated on the paper surface using a mini-type CO2 laser machine. Wax-patterned paper microzones created in this way are utilized to conduct the pen-type pH meter-based P-ELISAs with enzyme-loaded SiO2 microbeads for highly efficient signal amplification of each antibody-antigen binding event. The results show that this new P-ELISA system is quantitatively sensitive to the concentrations of a model protein analyte in buffer samples ranging from 12.5 to 200 pg mL-1, with a limit of detection of ca. 7.5 pg mL-1 (3σ). Moreover, the satisfactory recovery results of assaying several human serum samples validate its feasibility for practical applications.
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Affiliation(s)
- Shangwang Le
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Hui Zhou
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Chaohong Cao
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Jiani Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Hongcheng Pan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
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6
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Parween S, Nahar P. Ultraminiaturized assay for rapid, low cost detection and quantification of clinical and biochemical samples. Biomed Microdevices 2016; 18:33. [PMID: 26973054 DOI: 10.1007/s10544-016-0059-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Herein, we report a simple, sensitive, rapid and low-cost ultraminiaturized assay technique for quantitative detection of 1 μl of clinical or biochemical sample on a novel ultraminiaturized assay plate (UAP). UAP is prepared by making tiny cavities on a polypropylene sheet. As UAP cannot immobilize a biomolecule through absorption, we have activated the tiny cavities of UAP by 1-fluoro-2-nitro-4-azidobenzene in a photochemical reaction. Activated UAP (AUAP) can covalently immobilize any biomolecule having an active nucleophilic group such as amino group. Efficacy of AUAP is demonstrated by detecting human IgE, antibody of hepatitis C virus core antigen and oligonucleotides. Quantification is performed by capturing the image of the colored assay solution and digitally quantifying the image by color saturation without using costly NanoDrop spectrophotometer. Image - based detection of human IgE and an oligonucleotide shows an excellent correlation with absorbance - based assay (recorded in a NanoDrop spectrophotometer); it is validated by Pearson's product-moment correlation with correlation coefficient of r = 0.9545088 and r = 0.9947444 respectively. AUAP is further checked by detecting hepatitis C virus Ab where strong correlation of color saturation with absorbance with respect to concentration is observed. Ultraminiaturized assay successfully detects target oligonucleotides by perfectly hybridizing with their respective complementary oligonucleotide probes but not with a random oligonucleotide. Ultraminiaturized assay technique has substantially reduced the requirement of reagents by 100 times and assay timing by 50 times making it a potential alternative to conventional method.
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Affiliation(s)
- Shahila Parween
- Innovative Diagnostic Lab, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110 007, India.,Academy of Scientific and Innovative Research, CRRI Campus, Mathura Road, Delhi, 110020, India
| | - Pradip Nahar
- Innovative Diagnostic Lab, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110 007, India. .,Academy of Scientific and Innovative Research, CRRI Campus, Mathura Road, Delhi, 110020, India.
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Paper-based assay for red blood cell antigen typing by the indirect antiglobulin test. Anal Bioanal Chem 2016; 408:5231-8. [PMID: 27185543 DOI: 10.1007/s00216-016-9617-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/20/2016] [Accepted: 05/02/2016] [Indexed: 12/11/2022]
Abstract
A rapid and simple paper-based elution assay for red blood cell antigen typing by the indirect antiglobulin test (IAT) was established. This allows to type blood using IgG antibodies for the important blood groups in which IgM antibodies do not exist. Red blood cells incubated with IgG anti-D were washed with saline and spotted onto the paper assay pre-treated with anti-IgG. The blood spot was eluted with an elution buffer solution in a chromatography tank. Positive samples were identified by the agglutinated and fixed red blood cells on the original spotting area, while red blood cells from negative samples completely eluted away from the spot of origin. Optimum concentrations for both anti-IgG and anti-D were identified to eliminate the washing step after the incubation phase. Based on the no-washing procedure, the critical variables were investigated to establish the optimal conditions for the paper-based assay. Two hundred ten donor blood samples were tested in optimal conditions for the paper test with anti-D and anti-Kell. Positive and negative samples were clearly distinguished. This assay opens up new applications of the IAT on paper including antibody detection and blood donor-recipient crossmatching and extends its uses into non-blood typing applications with IgG antibody-based diagnostics. Graphical abstract A rapid and simple paper-based assay for red blood cell antigen typing by the indirect antiglobulin test.
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8
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Electrochemical lateral flow immunosensor for detection and quantification of dengue NS1 protein. Biosens Bioelectron 2016; 77:400-8. [DOI: 10.1016/j.bios.2015.09.048] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/19/2015] [Accepted: 09/22/2015] [Indexed: 12/24/2022]
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9
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Zhang Y, Yang J, Nie J, Yang J, Gao D, Zhang L, Li J. Enhanced ELISA using a handheld pH meter and enzyme-coated microparticles for the portable, sensitive detection of proteins. Chem Commun (Camb) 2016; 52:3474-7. [DOI: 10.1039/c5cc09852a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This work describes a general methodology for enhanced enzyme-linked immunosorbent assay (ELISA) that integrates enzyme-coated microparticle probes for robust yet highly efficient signal amplification and a handheld pH meter for a simple, portable, and quantitative readout.
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Affiliation(s)
- Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Jiani Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Juanhua Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Dong Gao
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Lang Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
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10
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Guan L, Li L, Huang X, Ji J, Tian J, Nilghaz A, Shen W. REMOVED: Bioactive Paper Design for Human Blood Analysis: Paper Property Suitable for Large-scale Sensor Production. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2015.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Qualitative and quantitative detection of T7 bacteriophages using paper based sandwich ELISA. Colloids Surf B Biointerfaces 2015; 132:264-70. [DOI: 10.1016/j.colsurfb.2015.05.028] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/14/2015] [Accepted: 05/15/2015] [Indexed: 12/13/2022]
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12
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Arrastia M, Avoundjian A, Ehrlich PS, Eropkin M, Levine L, Gomez FA. Development of a microfluidic-based assay on a novel nitrocellulose platform. Electrophoresis 2015; 36:884-8. [DOI: 10.1002/elps.201400421] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/24/2014] [Accepted: 12/07/2014] [Indexed: 01/14/2023]
Affiliation(s)
- Mary Arrastia
- Department of Chemistry and Biochemistry; California State University; Los Angeles CA USA
| | - Ani Avoundjian
- Department of Chemistry and Biochemistry; California State University; Los Angeles CA USA
| | | | - Micah Eropkin
- Department of Chemistry and Biochemistry; California State University; Los Angeles CA USA
| | | | - Frank A. Gomez
- Department of Chemistry and Biochemistry; California State University; Los Angeles CA USA
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13
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Guan L, Tian J, Cao R, Li M, Cai Z, Shen W. Barcode-Like Paper Sensor for Smartphone Diagnostics: An Application of Blood Typing. Anal Chem 2014; 86:11362-7. [DOI: 10.1021/ac503300y] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Liyun Guan
- Department of Chemical Engineering, ‡Clayton School of Information Technology, Monash University, Wellington Rd., Clayton, Melbourne, Victoria 3800, Australia
| | - Junfei Tian
- Department of Chemical Engineering, ‡Clayton School of Information Technology, Monash University, Wellington Rd., Clayton, Melbourne, Victoria 3800, Australia
| | - Rong Cao
- Department of Chemical Engineering, ‡Clayton School of Information Technology, Monash University, Wellington Rd., Clayton, Melbourne, Victoria 3800, Australia
| | - Miaosi Li
- Department of Chemical Engineering, ‡Clayton School of Information Technology, Monash University, Wellington Rd., Clayton, Melbourne, Victoria 3800, Australia
| | - Zhaoxiang Cai
- Department of Chemical Engineering, ‡Clayton School of Information Technology, Monash University, Wellington Rd., Clayton, Melbourne, Victoria 3800, Australia
| | - Wei Shen
- Department of Chemical Engineering, ‡Clayton School of Information Technology, Monash University, Wellington Rd., Clayton, Melbourne, Victoria 3800, Australia
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Mu X, Zhang L, Chang S, Cui W, Zheng Z. Multiplex Microfluidic Paper-based Immunoassay for the Diagnosis of Hepatitis C Virus Infection. Anal Chem 2014; 86:5338-44. [DOI: 10.1021/ac500247f] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xuan Mu
- Institute
of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, 5 Dongdan Santiao Beijing, 100005 P. R. China
| | - Lin Zhang
- Department
of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College, 1 Shuaifuyuan Beijing, 100730 P. R. China
| | - Shaoying Chang
- Institute
of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, 5 Dongdan Santiao Beijing, 100005 P. R. China
| | - Wei Cui
- Department
of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College, 1 Shuaifuyuan Beijing, 100730 P. R. China
| | - Zhi Zheng
- Institute
of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, 5 Dongdan Santiao Beijing, 100005 P. R. China
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15
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Fobel R, Kirby AE, Ng AHC, Farnood RR, Wheeler AR. Paper microfluidics goes digital. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2838-43. [PMID: 24458780 DOI: 10.1002/adma.201305168] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 11/29/2013] [Indexed: 05/20/2023]
Abstract
The first example of so-called "digital microfluidics" (DMF) implemented on paper by inkjet printing is reported. A sandwich enzyme-linked immunosorbent assay (ELISA) is demonstrated as an example of a complex, multistep protocol that would be difficult to achieve with capillary-driven paper microfluidics. Furthermore, it is shown that paper-based DMF devices have comparable performance to traditional photolithographically patterned DMF devices at a fraction of the cost.
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Affiliation(s)
- Ryan Fobel
- Institute for Biomaterials and Biomedical Engineering, University of Toronto, 164 College St., Toronto, ON, M5S 3E1, Canada
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16
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Image-based ELISA on an activated polypropylene microtest plate—A spectrophotometer-free low cost assay technique. Biosens Bioelectron 2013; 48:287-92. [DOI: 10.1016/j.bios.2013.04.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 04/05/2013] [Accepted: 04/18/2013] [Indexed: 11/20/2022]
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17
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Shah P, Zhu X, Li CZ. Development of paper-based analytical kit for point-of-care testing. Expert Rev Mol Diagn 2013; 13:83-91. [PMID: 23256705 DOI: 10.1586/erm.12.130] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Paper-based analytical devices have been widely used for biomedical, environmental and food-quality testing. This review focuses on paper-based tests for biomarkers and bacterial detection with a brief introduction about various fabrication techniques and designs, biological and nonbiological probes and detection methods. Paper is relatively cheap and available in abundance. Moreover, properties of paper such as it being disposable, easy to use and store, and that it is easy to transport and modify draw significant attention to it as a platform for the development of paper-based analytical devices. These traits make paper-based analytical devices a strong candidate in point-of-care devices for rapid and economical testing near the site of patients.
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Affiliation(s)
- Pratikkumar Shah
- Nanobioengineering/Bioelectronics Lab, Department of Biomedical Engineering, Florida International University, 10555 W Flagler St. Miami, Florida 33174, USA
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Li L, Tian J, Li M, Shen W. Superhydrophobic surface supported bioassay – An application in blood typing. Colloids Surf B Biointerfaces 2013; 106:176-80. [DOI: 10.1016/j.colsurfb.2013.01.049] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 01/15/2013] [Accepted: 01/18/2013] [Indexed: 11/28/2022]
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19
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Oliveira KA, Rodrigues de Oliveira C, Antonelli da Silveira L, Tomazelli Coltro WK. Laser-printing of toner-based 96-microzone plates for immunoassays. Analyst 2013; 138:1114-21. [DOI: 10.1039/c2an36532d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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20
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Ngo YH, Li D, Simon GP, Garnier G. Gold nanoparticle-paper as a three-dimensional surface enhanced Raman scattering substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8782-90. [PMID: 22594710 DOI: 10.1021/la3012734] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This work investigates the effect of gold nanoparticle (AuNP) addition to paper substrate and examines the ability of these composite materials to amplify the surface enhanced Raman scattering (SERS) signal of a dye adsorbed. Paper has a three-dimensional (3D), porous, and heterogeneous morphology. The manner in which paper adsorbs the nanoparticles is crucial to its SERS properties, particularly with regards to aggregation. In this work, we sought to maintain the same degree of aggregation, while changing the concentration of nanoparticles deposited on paper. We achieved this by dipping paper into AuNP solutions of different, known concentration and found that the initial packing density of AuNPs in solutions was retained on paper with the same degree of aggregation. The surface coverage of AuNPs on paper was found to scale linearly to their concentration profile in solutions. The SERS performances of the AuNP-treated papers were evaluated with 4-aminothiophenol (4-ATP) as the Raman molecule, and their SERS intensities increased linearly with the AuNPs' concentration. Compared to AuNP-treated silicon, the Raman enhancement factor (EF) from paper was relatively higher due to a more uniform and greater degree of adsorption of AuNPs. The effect of the spatial distribution of AuNPs in their substrates on SERS activity was also investigated. In this experiment, the number of AuNPs was kept constant (a 1 μL droplet of AuNPs was deposited on all substrates), and the distribution profile of AuNPs was controlled by the nature of the substrate: paper, silicon, and hydrophobized paper. The AuNP droplet on paper showed the most reproducible and sensitive SERS signal. This highlighted the role of the z-distribution (through film) of AuNPs within the bulk of the paper, producing a 3D multilayer structure to allow inter- and intralayer plasmon coupling, and hence amplifying the SERS signal. The SERS performance of nanoparticle-functionalized paper can thus be optimized by controlling the 3D distribution of the metallic nanoparticles, and such control is critical if these systems are to be implemented as a low-cost and highly sensitive bioassay platform.
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Affiliation(s)
- Ying Hui Ngo
- BioPRIA, Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
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Li M, Tian J, Al-Tamimi M, Shen W. Paper-based blood typing device that reports patient's blood type "in writing". Angew Chem Int Ed Engl 2012; 51:5497-501. [PMID: 22511466 DOI: 10.1002/anie.201201822] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Miaosi Li
- Department of Chemical Engineering, Monash University, Clayton, Vic, Australia
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22
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Li M, Tian J, Al-Tamimi M, Shen W. Paper-Based Blood Typing Device That Reports Patient’s Blood Type “in Writing”. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201822] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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