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相关概念视频

Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

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Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a...
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Microbial Biosensors01:17

Microbial Biosensors

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Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
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Scalable High Throughput Selection From Phage-displayed Synthetic Antibody Libraries
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一种基于生物传感器的菌体显示选择方法,用于自动化,高通量纳米体发现.

Phebe De Keyser1, Valentina Kalichuk1, Thomas Zögg1

  • 1VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, Pleinlaan 2-building E, 1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium.

Biosensors & bioelectronics
|December 4, 2024
PubMed
概括

这项研究引入了使用Octet生物传感器进行高通量选择纳米体®的改进的生物测试策略. 这种方法通过减少轮和材料要求,加速了针对特定目标的纳米体®的发现.

关键词:
生物层干涉度测试是生物层干涉度测试.生物制造是生物制造的一种.生物传感器是一种生物传感器.一个纳米人体.体显示器选择体显示器选择这就是VHH VHH.

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科学领域:

  • 生物技术是生物技术.
  • 免疫学 免疫学 免疫学
  • 分子生物学分子生物学

背景情况:

  • 传统的Nanobody® (Nb) 选择依赖于劳动密集型,耗时的生物扫描方法.
  • 现有的方法通常需要净化抗原和广泛的优化,增加成本和持续时间.

研究的目的:

  • 为了验证一个改进的生物测试策略,利用生物传感器进行高效的Nanobody®选择.
  • 为了证明Octet生物层干涉测量的优点,用于高通量Nanobody®丰富.
  • 为了减少与 Nanobody® 发现相关的时间,劳动力和材料成本.

主要方法:

  • 体显示的Nanobody®图书馆与Octet生物层干扰度传感器上固定的目标抗原进行了分析.
  • 优化了关联/解离时间和缓冲条件,以提高特异性和亲和力.
  • 将缩小规模到384个井格式,并使用未净化的目标和菌体进行了探索.

主要成果:

  • 八行选策略显著减少了非特异性和低亲和度结合剂,减少了所需的选轮数量.
  • 高亲和力纳米体®在五天内被丰富了三轮.
  • 结合剂丰富的量化直接通过干扰测量实现,消除了对菌体定位的需要.

结论:

  • 基于八度生物传感器的扫描为传统生物扫描方法提供了高吞吐量,高效和低成本的替代方案.
  • 这种改进的策略使得能够使用未经净化试剂和简化量化方法快速分离特定目标的纳米体®.
  • 经过验证的方法简化了纳米体®的发现,用于随后的选和表征.