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A Strategy for Minimizing Background Signal in Autoinductive Signal Amplification Reactions for Point-of-Need Assays

机译:在需要点分析的自感应信号放大反应中将背景信号减至最小的策略

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摘要

Rapid point-of-need assays are used to detect abundant biomarkers. The development of in situ signal amplification reactions could extend these assays to screening and triaging of patients for trace levels of biomarkers, even in resource-limited settings. We, and others, have developed small molecule-based in situ signal amplification reactions that eventually may be useful in this context. Herein we describe a design strategy for minimizing background signal that may occur in the absence of the target analyte, thus moving this in situ signal amplification approach one step closer to practical applications. Specifically, we describe allylic ethers as privileged connectors for linking detection and propagating functionality in a small molecule signal amplification reagent. Allylic ethers minimize background reactions while still enabling controlled release of a propagating signal in order to continue the signal amplification reaction. This paper characterizes the ability of allylic ethers to provide an amplified response, and offers insight into additional design considerations that are needed before in situ small molecule-based signal amplification becomes a viable strategy for point-of-need diagnostics.
机译:快速的需求点分析用于检测丰富的生物标记。原位信号放大反应的发展可能将这些检测方法扩展到对痕量生物标志物进行筛查和分选患者,即使在资源有限的情况下也是如此。我们和其他人已经开发了基于小分子的原位信号扩增反应,最终可能在这种情况下有用。在本文中,我们描述了一种设计策略,用于最小化在不存在目标分析物的情况下可能发生的背景信号,从而使这种原位信号放大方法更接近实际应用。具体而言,我们将烯丙基醚描述为特权连接器,用于连接小分子信号放大试剂中的检测和传播功能。烯丙基醚使背景反应减至最小,同时仍能够控制释放传播的信号以继续信号放大反应。本文描述了烯丙基醚提供放大响应的能力,并提供了对原位基于小分子的信号放大成为必要的诊断可行策略之前需要考虑的其他设计考虑因素的见解。

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