Two Decades of Arrayed Imaging Reflectometry for Sensitive, High-Throughput Biosensing.

Two Decades of Arrayed Imaging Reflectometry for Sensitive, High-Throughput Biosensing.
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DOI:
10.3390/bios13090870
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发表时间:
2023-09-05
期刊:
Biosensors
影响因子:
--
通讯作者:
--
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其他
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阵列成像反射计(AIR)于2004年首次推出,是一种薄膜干涉传感器技术,可优化光学特性(入射角,偏振,衬底折射率和厚度),以在硅衬底表面产生总相消干涉的条件。AIR的优点是其灵敏度、动态范围、多路复用能力和高通量兼容性。AIR已用于检测冠状病毒、流感病毒、金黄色葡萄球菌和人类自身抗原的抗体。它还显示出在检测细胞因子中的实用性,其灵敏度与基于珠的测定和ELISA测定相当。不限于抗体或抗原,混合的适体和蛋白质阵列以及聚糖阵列已用于AIR中以区分流感毒株。使用直接和竞争性抑制测定的混合阵列使得能够同时测量细胞因子和小分子。最后,空气也被用来测量亲和常数,动力学和平衡。在这篇综述中,我们给出了空气生物传感技术的概述,并提出了最新的空气进展。
Arrayed imaging reflectometry (AIR), first introduced in 2004, is a thin-film interference sensor technique that optimizes optical properties (angle of incidence, polarization, substrate refractive index, and thickness) to create a condition of total destructive interference at the surface of a silicon substrate. The advantages of AIR are its sensitivity, dynamic range, multiplex capability, and high-throughput compatibility. AIR has been used for the detection of antibodies against coronaviruses, influenza viruses, Staphylococcus aureus, and human autoantigens. It has also shown utility in detection of cytokines, with sensitivity comparable to bead-based and ELISA assays. Not limited to antibodies or antigens, mixed aptamer and protein arrays as well as glycan arrays have been employed in AIR for differentiating influenza strains. Mixed arrays using direct and competitive inhibition assays have enabled simultaneous measurement of cytokines and small molecules. Finally, AIR has also been used to measure affinity constants, kinetic and at equilibrium. In this review, we give an overview of AIR biosensing technologies and present the latest AIR advances.
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