A Compact Immunoassay Platform Based on a Multicapillary Glass Plate
A highly sensitive, rapid immunoassay performed in the multi-channels of a micro-well array consisting of a multicapillary glass plate (MCP) and a polydimethylsiloxane (PDMS) slide is described. The micro-dimensions and large surface area of the MCP permitted the diffusion distance to be decreased a...
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doaj-0adb4e305a0e49ffaf3be83683da037a2020-11-24T21:06:33ZengMDPI AGSensors1424-82202014-05-011459132914410.3390/s140509132s140509132A Compact Immunoassay Platform Based on a Multicapillary Glass PlateShuhua Xue0Hulie Zeng1Jianmin Yang2Hizuru Nakajima3Katsumi Uchiyama4Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, JapanDepartment of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, JapanDepartment of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, JapanDepartment of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, JapanDepartment of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, JapanA highly sensitive, rapid immunoassay performed in the multi-channels of a micro-well array consisting of a multicapillary glass plate (MCP) and a polydimethylsiloxane (PDMS) slide is described. The micro-dimensions and large surface area of the MCP permitted the diffusion distance to be decreased and the reaction efficiency to be increased. To confirm the concept of the method, human immunoglobulin A (h-IgA) was measured using both the proposed immunoassay system and the traditional 96-well plate method. The proposed method resulted in a 1/5-fold decrease of immunoassay time, and a 1/56-fold cut in reagent consumption with a 0.05 ng/mL of limit of detection (LOD) for IgA. The method was also applied to saliva samples obtained from healthy volunteers. The results correlated well to those obtained by the 96-well plate method. The method has the potential for use in disease diagnostic or on-site immunoassays.http://www.mdpi.com/1424-8220/14/5/9132multicapillary glass platecompact immunoassayenzyme-linked immunosorbent assay |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shuhua Xue Hulie Zeng Jianmin Yang Hizuru Nakajima Katsumi Uchiyama |
spellingShingle |
Shuhua Xue Hulie Zeng Jianmin Yang Hizuru Nakajima Katsumi Uchiyama A Compact Immunoassay Platform Based on a Multicapillary Glass Plate Sensors multicapillary glass plate compact immunoassay enzyme-linked immunosorbent assay |
author_facet |
Shuhua Xue Hulie Zeng Jianmin Yang Hizuru Nakajima Katsumi Uchiyama |
author_sort |
Shuhua Xue |
title |
A Compact Immunoassay Platform Based on a Multicapillary Glass Plate |
title_short |
A Compact Immunoassay Platform Based on a Multicapillary Glass Plate |
title_full |
A Compact Immunoassay Platform Based on a Multicapillary Glass Plate |
title_fullStr |
A Compact Immunoassay Platform Based on a Multicapillary Glass Plate |
title_full_unstemmed |
A Compact Immunoassay Platform Based on a Multicapillary Glass Plate |
title_sort |
compact immunoassay platform based on a multicapillary glass plate |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2014-05-01 |
description |
A highly sensitive, rapid immunoassay performed in the multi-channels of a micro-well array consisting of a multicapillary glass plate (MCP) and a polydimethylsiloxane (PDMS) slide is described. The micro-dimensions and large surface area of the MCP permitted the diffusion distance to be decreased and the reaction efficiency to be increased. To confirm the concept of the method, human immunoglobulin A (h-IgA) was measured using both the proposed immunoassay system and the traditional 96-well plate method. The proposed method resulted in a 1/5-fold decrease of immunoassay time, and a 1/56-fold cut in reagent consumption with a 0.05 ng/mL of limit of detection (LOD) for IgA. The method was also applied to saliva samples obtained from healthy volunteers. The results correlated well to those obtained by the 96-well plate method. The method has the potential for use in disease diagnostic or on-site immunoassays. |
topic |
multicapillary glass plate compact immunoassay enzyme-linked immunosorbent assay |
url |
http://www.mdpi.com/1424-8220/14/5/9132 |
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