Suppr超能文献

基于频率选择表面的用于无PCR cDNA检测的超灵敏太赫兹生物传感器。

Ultrasensitive THz biosensor for PCR-free cDNA detection based on frequency selective surfaces.

作者信息

Weisenstein Christian, Schaar Dominik, Katharina Wigger Anna, Schäfer-Eberwein Heiko, Bosserhoff Anja K, Haring Bolívar Peter

机构信息

Institute of High Frequency and Quantum Electronics HQE, University of Siegen, Germany.

Institute of Biochemistry, Friedrich-Alexander-University Erlangen-Nürnberg, Germany.

出版信息

Biomed Opt Express. 2019 Dec 23;11(1):448-460. doi: 10.1364/BOE.380818. eCollection 2020 Jan 1.

Abstract

THz technologies are a powerful tool for label-free detection of biomolecules. However, significant reduction of the lower detection limit is required to apply THz-sensors in biomedical diagnosis. This paper reports an ultrasensitive THz-biosensor based on asymmetric double split ring resonators (aDSRR) for the direct label- and PCR-free detection of DNA at physiologically relevant concentrations. We introduce selective functionalization and localized electric field concentration to enhance aDSRR sensitivity and specificity. The sensor characteristics are demonstrated using the human tumor marker MIA in cDNA samples produced from total RNA without PCR-amplification. Measurements of DNA samples with concentrations as low as 1.55 × 10 mol/l are presented.

摘要

太赫兹技术是用于生物分子无标记检测的强大工具。然而,要将太赫兹传感器应用于生物医学诊断,需要大幅降低检测下限。本文报道了一种基于不对称双裂环谐振器(aDSRR)的超灵敏太赫兹生物传感器,用于在生理相关浓度下直接对DNA进行无标记和无PCR检测。我们引入了选择性功能化和局部电场集中来提高aDSRR的灵敏度和特异性。使用从总RNA产生的cDNA样本中的人类肿瘤标志物MIA,在不进行PCR扩增的情况下展示了传感器特性。给出了浓度低至1.55×10⁻⁹mol/l的DNA样本的测量结果。

相似文献

引用本文的文献

1
Strong coupling of metamaterials with cavity photons: toward non-Hermitian optics.超材料与腔光子的强耦合:迈向非厄米光学。
Nanophotonics. 2024 Feb 5;13(14):2443-2451. doi: 10.1515/nanoph-2023-0899. eCollection 2024 Jun.
2
AI-Based Metamaterial Design.基于人工智能的超材料设计。
ACS Appl Mater Interfaces. 2024 Jun 12;16(23):29547-29569. doi: 10.1021/acsami.4c04486. Epub 2024 May 29.

本文引用的文献

7
Babinet principle applied to the design of metasurfaces and metamaterials.巴比涅原理在超表面和超材料设计中的应用。
Phys Rev Lett. 2004 Nov 5;93(19):197401. doi: 10.1103/PhysRevLett.93.197401. Epub 2004 Nov 1.

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验