Improved detectability and signal strength for rotating phase fluorescence immunoassays through image processing.

Improved detectability and signal strength for rotating phase fluorescence immunoassays through image processing.
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通过图像处理提高旋转相荧光免疫测定的可检测性和信号强度。

DOI:
10.1039/c0an00549e
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发表时间:
2011
期刊:
The Analyst
影响因子:
--
通讯作者:
Petkus,MatthewM
Petkus,MatthewM
中科院分区:
--
文献类型:
--
作者:
Mahanti,Prasun;Taylor,Thomas;Hayes,MarkA;Cochran,Douglas;Petkus,MatthewM

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基于旋转固相的荧光免疫分析已显示出降低检测限的前景以及其他优点。然而,固有的背景失真效应限制了它们的实用性。在这里,采用新颖的图像处理策略来最小化这些影响并改进浓度估计并降低检测限。新处理能力的初步演示是针对蛋白质肌红蛋白的数据进行的,肌红蛋白是急性心肌梗死的生物标志物。对于这些数据,与已发表的结果相比,检测限提高了约一百倍(至 700 fM),这与完全开发的其他免疫分析策略(例如 ELISA)具有竞争性或更好。这项工作表明图像和视频处理技术可以为生化检测和浓度估计提供有价值的替代方法。
Fluorescence immunoassays based on rotating solid phase have shown promise of lowered detection limits, among other advantages. However, intrinsic background distortion effects have limited their utility. Here, novel image processing strategies are used to minimize these effects and improve the estimate of concentration and lower the detection limit. This initial demonstration of a new processing capability is performed on data for a protein, myoglobin, which is a biomarker for acute myocardial infarction. For these data, compared with published results, the detection limit is improved by a factor of approximately one hundred (to 700 fM), which is competitive with or better than other immunoassay strategies (ELISA, for example) that are fully developed. This work suggests that image and video processing technologies can provide a valuable alternative approach to biochemical detection and concentration estimation.
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发表时间: 1994
影响因子: --
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