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相关概念视频

Super-resolution Fluorescence Microscopy01:37

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

Updated: Jun 12, 2025

Fluorescence Imaging with One-nanometer Accuracy FIONA
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具有多色性能的J-聚合光纳米粒子使灵敏的LFIA平台成为可能.

Gan Zhang1, Keyang Lai1, Lilin Zhang2

  • 1State Key Laboratory of Food Science and Resources, Nanchang University, 330047 Nanchang, China.

Nano letters
|April 18, 2025
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概括

我们开发了J聚合光纳米粒子 (JNP),用于使用多重侧流免疫试验 (LFIA) 敏感,同时检测T-2和AFB1毒素. 与传统方法相比,这种生物传感方法显著提高了检测极限.

关键词:
检测 检测 检测 检测 检测在J-聚合.侧流免疫测试是一种侧流免疫测试.多色彩的 多色彩的毒素是一种毒素.

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科学领域:

  • 纳米技术纳米技术
  • 生物感应是一种生物感应.
  • 分析化学 分析化学

背景情况:

  • 传统的侧流免疫试验 (LFIA) 具有有限的灵敏度和单一的信号输出.
  • 开发灵敏和多重检测平台对于快速的现场毒素分析至关重要.

研究的目的:

  • 开发J聚合光纳米粒子 (JNP) 作为增强LFIA的多色记者.
  • 在多重的LFIA平台上实现T-2和AFB1毒素的同时和敏感的检测.

主要方法:

  • 合成的JNP表现出强烈的J聚合现象,具有红移发射 (∼620nm).
  • 开发了一个多重的LFIA平台 (JNPs-LFIA),使用绿色和红色发射的JNPs.
  • 在开发的JNPs-LFIA平台上定量检测到T-2和AFB1毒素.

主要成果:

  • 由于纳米粒子封闭和J聚合,JNP显示了红移排放.
  • JNPs-LFIA实现了T-2毒素的0.645 ng mL-1和AFB1毒素的0.0035 ng mL-1的检测极限.
  • 开发的JNPs-LFIA对T-2和AFB1毒素的敏感性分别比AuNPs-LFIA高3.5倍和12.2倍.

结论:

  • 这项工作提出了设计多色免疫探针的有效策略.
  • 开发的JNPs-LFIA平台提供了一种对T-2和AFB1毒素的敏感和同时检测方法.
  • 这一进步促进了用于先进生物传感应用的新型记者的发展.