共 32 条
3D Origami-based multifunction-integrated immunodevice: low-cost and multiplexed sandwich chemiluminescence immunoassay on microfluidic paper-based analytical device
被引:239
作者:
Ge, Lei
[1
]
Wang, Shoumei
[1
]
Song, Xianrang
[2
]
Ge, Shenguang
[1
]
Yu, Jinghua
[1
]
机构:
[1] Univ Jinan, Shandong Univ, Sch Chem & Chem Engn, Key Lab Chem Sensing & Anal, Jinan 250022, Peoples R China
[2] Shandong Tumor Hosp, Canc Res Ctr, Jinan 250117, Peoples R China
关键词:
LAB-ON-PAPER;
D O I:
10.1039/c2lc40325k
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
A novel 3D microfluidic paper-based immunodevice, integrated with blood plasma separation from whole blood samples, automation of rinse steps, and multiplexed CL detections, was developed for the first time based on the principle of origami (denoted as origami-based device). This 3D origami-based device, comprised of one test pad surrounded by four folding tabs, could be patterned and fabricated by wax-printing on paper in bulk. In this work, a sandwich-type chemiluminescence (CL) immunoassay was introduced into this 3D origami-based immunodevice, which could separate the operational procedures into several steps including (i) folding pads above/below and (ii) addition of reagent/buffer under a specific sequence. The CL behavior, blood plasma separation, washing protocol, and incubation time were investigated in this work. The developed 3D origami-based CL immunodevice, combined with a typical luminuol-H2O2 CL system and catalyzed by Ag nanoparticles, showed excellent analytical performance for the simultaneous detection of four tumor markers. The whole blood samples were assayed and the results obtained were in agreement with the reference values from the parallel single-analyte test. This paper-based microfluidic origami CL detection system provides a new strategy for a low-cost, sensitive, simultaneous multiplex immunoassay and point-of-care diagnostics.
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页码:3150 / 3158
页数:9
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