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The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
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Downstream processing begins once fermentation is complete and involves a series of steps to recover and purify products such as acids, vitamins, antibiotics, or proteins.Cell HarvestingFor example, for intracellular protein-based products, the first step is harvesting the cells. This is typically achieved using centrifugation or filtration to separate the cells from the liquid phase.Cell Disruption for Intracellular ProductsIf the target product is intracellular, the harvested cells must be...

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相关实验视频

Updated: Jun 29, 2026

The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
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一个基于芯片的C频段ODNP平台.

Qing Yang1, Jianyu Zhao1, Frederik Dreyer1

  • 1Institute of Smart Sensors, University of Stuttgart, Pfafenwaldring 47, Stuttgart, 70569, Germany.

Journal of magnetic resonance (San Diego, Calif. : 1997)
|December 24, 2023
PubMed
概括
此摘要是机器生成的。

我们开发了一种基于芯片的新型Overhauser动态核极化 (ODNP) 平台,用于增强核磁共振 (NMR) 检测. 该系统实现了显著的信号增强,使化学分析的新应用成为可能.

关键词:
市议员授予线圈.在C波段的DNP中使用C波段的DNP.动态核极化是指一个动态的核极化.多色调激发的激发方式在芯片上的NMR收发器.印制的线圈,印刷的线圈.

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科学领域:

  • 磁共振光谱学 磁共振光谱学
  • 微波工程 微波工程
  • 材料科学 材料科学 材料科学

背景情况:

  • 超频动态核极化 (ODNP) 增强了核磁共振 (NMR) 的灵敏度.
  • 现有的ODNP平台往往缺乏可调和性和整合性.
  • 对ODNP需要高效的宽带微波组件.

研究的目的:

  • 介绍一个基于芯片的C频段ODNP平台,配备可调节的微波 (MW) 阿尔德曼-格兰特 (AG) 线圈.
  • 为了证明平台的高ODNP增强因子和宽带能力.
  • 探索间接电子磁共振 (EPR) 信号检测和多色调激发中的应用.

主要方法:

  • 集成一个NMR-on-a-chip收发器与一个打印的MW AG线圈.
  • 宽带频率调整 (528 MHz) 的AG卷轴.
  • 优化高输入功率转化为磁场的转换效率.
  • 具有和没有微波辐射的NMR测量.
  • 通过微波频率扫描间接检测EPR信号.
  • 多色调微波激发实验. 多色调微波激发实验.

主要成果:

  • 在 33.3 dBm (2.1 W) 微波功率下,达到 -151 的测量ODNP增强因子.
  • 通过NMR测量验证平台功能和最先进的性能.
  • 通过扫荡MW频率来证明间接的EPR信号检测.
  • 通过使用TEMPOL的多色调激发,提高了ODNP增强的两倍.

结论:

  • 开发的基于芯片的ODNP平台在NMR灵敏度方面取得了重大进展.
  • 宽带调MW线圈可实现多功能应用,包括间接EPR和增强信号采集.
  • 该平台显示了在敏感检测和材料表征方面的更广泛应用的潜力.