相关实验视频
Updated: Jul 6, 2026

09:43
Microfluidic Chip Fabrication and Method to Detect Influenza
Published on: March 26, 2013
15.6K
在芯片上的病原体丰富和检测使用双旋增强的声流体龙卷风
Wei Wei1, Ke Jin1, Bingnan Wang1
1State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
ACS sensors
|March 9, 2026
概括
这项研究介绍了双旋增强声流体龙卷风 (D-VEAT),这是一种用于快速和高效的病原体丰富的新型微流体装置. 该D-VEAT系统显著提高了病原体检测灵敏度在一个广泛的尺寸范围.
科学领域:
- 生物医学工程 生物医学工程
- 微流体学 微流体学
- 声学流体学 声学流体学
背景情况:
- 病原体检测对全球健康至关重要,但由于样本中的低度而受到阻碍.
- 现有的声流体平台在有效丰富各种病原体大小方面存在局限性.
- 连续流动运行和广泛捕获仍然是当前技术面临的挑战.
研究的目的:
- 开发一种新的声流体实验室芯片平台,用于广泛的病原体丰富.
- 为了提高病原体捕获效率和检测灵敏度,使用独特的动力学.
- 克服现有系统在处理不同大小和度的病原体方面的局限性.
主要方法:
- 整合了一个经过几何优化的双三角千兆赫兹 (GHz) 大量声波共振器.
- 创建一个稳定的,三维的双声流体结构.
- 使用无固体流体捕获策略与自适应动力学.
主要成果:
- 对2μm颗粒的捕获效率达到>99%,对100nm颗粒的光增强>12倍.
- 在<5分钟内,细菌的检测极限为1×10^3CFU/mL,冠状病毒的检测极限为2×10^4PFU/mL.
- 展示了从10^3到10^8 CFU/mL的病原体度的容纳,没有通道阻塞.
结论:
- 双旋增强声流体龙卷风 (D-VEAT) 提供快速,高效和广泛的病原体丰富.
- 这项技术可以从超低体积样本中检测出敏感的病原体.
- 在各种环境中,D-VEAT为低成本,可重复使用的诊断提供了一个有希望的解决方案.
更多相关视频
08:22Electrowetting-based Digital Microfluidics Platform for Automated Enzyme-linked Immunosorbent Assay
Published on: February 23, 2020
10.4K
14:12Amplification of Escherichia coli in a Continuous-Flow-PCR Microfluidic Chip and Its Detection with a Capillary Electrophoresis System
Published on: November 21, 2023
2.6K
相关概念视频
Rapid Identification of Pathogens
MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Automated Microbial Diagnostics
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...