Label-Free Digital Detection of Intact Virions by Enhanced Scattering Microscopy.

Label-Free Digital Detection of Intact Virions by Enhanced Scattering Microscopy.
复制标题

DOI:
10.1021/jacs.1c09579
复制
发表时间:
2022-02-02
影响因子:
15
通讯作者:
Cunningham, Brian T.
Cunningham, Brian T.
中科院分区:
化学1区
文献类型:
--
作者:
Li, Nantao;Wang, Xiaojing;Tibbs, Joseph;Che, Congnyu;Peinetti, Ana Sol;Zhao, Bin;Liu, Leyang;Barya, Priyash;Cooper, Laura;Rong, Lijun;Wang, Xing;Lu, Yi;Cunningham, Brian T.

文献摘要

参考文献

被引文献

相似文献

在健康诊断、食品、安全和环境监测方面的一些应用需要快速、简单、有选择性和定量准确的病毒载量监测。在这里,我们介绍了第一种无标记的生物传感方法,可以快速检测和定量人类唾液中的完整病毒,具有单病毒粒子分辨率。以伪SARS-CoV-2为代表靶标,我们将具有区分活性病毒粒子和非活性病毒粒子能力的适体固定在光子晶体上,在光子晶体上,病毒粒子通过与外表面显示的刺突蛋白的亲和力被捕获。一旦捕获,病毒粒子的本征散射被放大并通过干涉成像检测。我们的方法分析每个捕获的病毒粒子的运动轨迹,实现对非目标病毒粒子的高度选择性识别,同时在室温下提供1 × 103拷贝/mL的检测限。该方法为收集点诊断提供了一种替代酶扩增法的方法。
Several applications in health diagnostics, food, safety, and environmental monitoring require rapid, simple, selective, and quantitatively accurate viral load monitoring. Here, we introduce the first label-free biosensing method that rapidly detects and quantifies intact virus in human saliva with single-virion resolution. Using pseudotype SARS-CoV-2 as a representative target, we immobilize aptamers with the ability to differentiate active from inactive virions on a photonic crystal, where the virions are captured through affinity with the spike protein displayed on the outer surface. Once captured, the intrinsic scattering of the virions is amplified and detected through interferometric imaging. Our approach analyzes the motion trajectory of each captured virion, enabling highly selective recognition against nontarget virions, while providing a limit of detection of 1 × 103 copies/mL at room temperature. The approach offers an alternative to enzymatic amplification assays for point-of-collection diagnostics.
DOI: 10.1038/s41467-020-18611-5
发表时间: 2020-09-23
影响因子: 16.6
作者:
Smyrlaki I;Ekman M;Lentini A;Rufino de Sousa N;Papanicolaou N;Vondracek M;Aarum J;Safari H;Muradrasoli S;Rothfuchs AG;Albert J;Högberg B;Reinius B
通讯作者: Reinius B
单分子等离子体传感:当前状态和未来前景。
DOI: 10.1021/acssensors.7b00382
发表时间: 2017-08-25
期刊: ACS sensors
影响因子: 8.9
作者:
Taylor AB;Zijlstra P
通讯作者: Zijlstra P
DOI: 10.1021/acsnano.0c05975
发表时间: 2020-09-22
期刊: ACS NANO
影响因子: 17.1
作者:
Gorshkov, Kirill;Susumu, Kimihiro;Oh, Eunkeu
通讯作者: Oh, Eunkeu
DOI: 10.1039/d0cc03993d
发表时间: 2020-09-11
影响因子: 4.9
作者:
Zhang, Liyun;Fang, Xiaona;Luo, Zhaofeng
通讯作者: Luo, Zhaofeng
DOI: 10.1038/nprot.2010.66
发表时间: 2010-01-01
期刊: NATURE PROTOCOLS
影响因子: 14.8
作者:
Sefah, Kwame;Shangguan, Dihua;Tan, Weihong
通讯作者: Tan, Weihong