I-Corps: COVID Detection System Using a DNA Cage-Embedded Microfluidics Sensor

I-Corps：使用 DNA 笼嵌入式微流体传感器的新冠病毒检测系统

• 批准号: 2323237
• 负责人: Yuan Tang
• 金额: $ 5万
• 依托单位: University of Toledo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-04-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2323237&HistoricalAwards=false
• 关键词: Corps; COVID; Detection; System; Using

The broader impact/commercial potential of this I-Corps project is the development of a microfluidic sensor system has the potential to significantly impact public health efforts to control the spread of viruses. It can be used for rapid and reliable detection of viruses, including COVID-19, in home and point-of-care settings, enabling early diagnosis and treatment of infected individuals. This can help reduce the transmission of the virus and mitigate the overall impact of the pandemic. Successful commercialization of the technology will lead to significant market potential in disease surveillance and biomedical research. Ultimately, the project aims to play a critical role in mitigating the impact of COVID-19 and improving access to essential testing solutions for people worldwide. This I-Corps project is based on the development of a microfluidic system for detecting COVID-19. The gold electrode-covered microfluidic system is immobilized with DNA nanocages installed with aptamers or surface enzymes on the electrode surface that generates varying electrical impedance signals depending on the number of virus particles in a saliva sample injected into the system. The DNA origami nanocage technique, together withaptamer/ACE2 enzymes are able to specifically capture the intact SARS-CoV-2 viruses. The immobilization of the DNA nanocage installed with aptamer/enzyme in a microfluidic system allows for easy, fast, and sensitive detection. The electrical impedance measurement provides an accurate label-free means of detecting the presence of the virus at nano-molar levels.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这个I-Corps项目的更广泛的影响/商业潜力是微流体传感器系统的开发有可能对控制病毒传播的公共卫生工作产生重大影响。它可用于在家庭和护理点环境中快速可靠地检测病毒，包括COVID-19，从而能够对感染者进行早期诊断和治疗。这有助于减少病毒的传播，减轻大流行病的总体影响。该技术的成功商业化将为疾病监测和生物医学研究带来巨大的市场潜力。最终，该项目旨在减轻COVID-19的影响，并改善全球人民获得基本检测解决方案的机会。这个I-Corps项目是基于开发用于检测COVID-19的微流体系统。金电极覆盖的微流体系统固定有DNA纳米笼，该DNA纳米笼在电极表面上安装有适体或表面酶，其根据注入系统中的唾液样品中的病毒颗粒的数量产生不同的电阻抗信号。DNA折纸纳米笼技术结合核酸适体/ACE 2酶能够特异性捕获完整的SARS-CoV-2病毒。在微流体系统中安装有适体/酶的DNA纳米笼的固定允许容易、快速和灵敏的检测。电阻抗测量提供了一种精确的无标记方法，可以在纳米摩尔水平上检测病毒的存在。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。