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
复制
发表时间:
2022
期刊:
影响因子:
2.9
通讯作者:
Dutta, Debashis
Dutta, Debashis
中科院分区:
生物学3区
文献类型:
--
作者:
Giri, Basant;Dutta, Debashis

文献摘要

参考文献

相似文献

我们之前报道过一种新方法,通过利用酶反应产物在不同测定部分的缓慢扩散,在连接的微通道中实施多重酶联免疫吸附测定(ELISA)。这项工作建立在该报告的基础上,通过在沿着圆形通道布局的圆周排列的分段中实施所提到的测定,以减少占地面积大小和样品体积要求。使用当前的设计,在 1.5 × 1.5 cm 的区域中展示了 5 重细胞因子 ELISA,与我们之前的研究报告相比,这相当于占地面积减少了约 3 倍。此外,在这项工作中,我们使用电渗代替了之前报告中的流体动力流,实现了用目标分子选择性涂覆我们的分析片段。我们实验设计的这一方面特别重要,因为它允许使用比当前工作中使用的横截面通道尺寸明显更短的通道尺寸。此外,使用电场进行涂层可以集成功能,例如在样品孵育期间分析物分子的动电预浓缩,这可以进一步增强我们的测定方法的能力。
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.
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
DOI: 10.1007/s10404-005-0040-0
发表时间: 2005-10-01
影响因子: 2.8
作者:
Hu, GQ;Gao, YL;Li, DQ
通讯作者: Li, DQ
人类产前诊断
DOI: --
发表时间: 1986
期刊:
影响因子: --
作者:
RA Harkness
通讯作者: RA Harkness
ELISA 和其他固相免疫分析:理论和实践方面
DOI: --
发表时间: 1989
期刊:
影响因子: --
作者:
A. Macgillivray
通讯作者: A. Macgillivray
DOI: 10.1021/nl2006092
发表时间: 2011-04-01
期刊: NANO LETTERS
影响因子: 10.8
作者:
Chen, Si;Svedendahl, Mikael;Kall, Mikael
通讯作者: Kall, Mikael