A compact microfluidic geometry for multiplexing enzyme‐linked immunosorbent assays
A compact microfluidic geometry for multiplexing enzyme‐linked immunosorbent assays
复制标题
用于多重酶联免疫吸附测定的紧凑微流体几何结构
DOI:
10.1002/elps.202100311
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发表时间:
2022
期刊:
影响因子:
2.9
通讯作者:
Dutta, Debashis
中科院分区:
文献类型:
--
作者:
Giri, Basant;Dutta, Debashis
We have previously reported a novel approach to implementing multiplex enzyme‐linked immunosorbent assay (ELISA) in connected microchannels by exploiting the slow diffusion of the enzyme reaction product across the different assay segments. This work builds on that report by implementing the noted assay in segments arranged along the circumference of a circular channel layout to reduce the footprint size and sample volume requirement. Using the current design, a 5‐plex cytokine ELISA was demonstrated in a 1.5 × 1.5‐cm region, which corresponded to a reduction in the footprint area by about a factor of 3 compared to that reported in our previous study. Additionally, the selective coating of our assay segments with the target molecules was realized in this work using electroosmosis instead of hydrodynamic flow as was the case in the previous report. This aspect of our experimental design is particularly significant as it permits the use of cross‐sectional channel dimensions significantly shorter than those employed in the current work. Moreover, the use of an electric field for coating purposes enables the integration of functionalities such as electrokinetic preconcentration of analyte molecules during the sample incubation period that can further enhance the capabilities of our assay method.
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DOI:
10.1039/c7an01671a
发表时间:
2018-02-12
期刊:
The Analyst
影响因子:
--
作者:
Giri B ;Liu Y ;Nchocho FN ;Corcoran RC ;Dutta D
通讯作者:
Dutta D
影响因子:
2.8
作者:
Hu, GQ;Gao, YL;Li, DQ
通讯作者:
Li, DQ
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
RA Harkness
通讯作者:
RA Harkness
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
A. Macgillivray
通讯作者:
A. Macgillivray
影响因子:
10.8
作者:
Chen, Si;Svedendahl, Mikael;Kall, Mikael
通讯作者:
Kall, Mikael