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相关概念视频

Microbial Biosensors01:17

Microbial Biosensors

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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相关实验视频

Updated: Jul 20, 2026

Combination of Adhesive-tape-based Sampling and Fluorescence in situ Hybridization for Rapid Detection of Salmonella on Fresh Produce
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银纳米粒子传感器阵列基于肉的新鲜度检查系统.

Jiahang Yu1,2, Mingyuan Huang1, Huixin Tian1

  • 1State Key Laboratory of Meat Quality Control and Cultured Meat Development, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.

Foods (Basel, Switzerland)
|October 28, 2023
PubMed
概括

这项研究开发了一种使用银纳米颗粒的新型色度传感器阵列,用于检测表明肉类腐烂的挥发性化合物. 这种经济的方法提供了一个视觉和定量方法来评估肉的新鲜度,并防止浪费.

关键词:
农产品NP的使用方法挥发性有机化合物 挥发性有机化合物冷藏的 brojiler 肉 肉肉 肉肉 冷藏颜色测量传感器阵列的颜色测量.纳米传感器的使用

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科学领域:

  • 分析化学 分析化学
  • 材料科学 材料科学 材料科学
  • 食品科学 食品科学 食品科学

背景情况:

  • 肉类的腐烂是由于生物化学反应和代谢途径造成的,产生挥发性化合物,表明新鲜度的变化.
  • 检测这些挥发性化合物对于最大限度地减少存储和销售期间的肉类损失和浪费至关重要.

研究的目的:

  • 开发一个具有成本效益和实用的色度传感器阵列,用于识别与肉类腐烂相关的挥发性化合物.
  • 创建一种可视和定量方法,以使用不同的色度反应来评估肉的新鲜度.

主要方法:

  • 采用具有表面控制的单热水法来合成具有不同反应性的银纳米粒子 (AgNPs).
  • 这些AgNP被固定在粉中,形成色度传感器阵列.
  • 该阵列被测试了其区分12种不同的挥发性化合物的能力.

主要成果:

  • 色度传感器阵列在与各种挥发性化合物相互作用时表现出明显的颜色变化.
  • 传感器阵列显示了12种不同的挥发性化合物的显著差异化能力.
  • 该方法提供了肉类新鲜度指标的定量和视觉读取.

结论:

  • 开发的色度传感器阵列是多分析物识别的经济和实用的工具.
  • 这项技术在食品包装,防伪,健康和环境监测等领域有着广泛的潜在应用.