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Labeling DNA Probes03:31

Labeling DNA Probes

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DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
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相关实验视频

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Application of Genetically Encoded Fluorescent Nitric Oxide (NO&#8226;) Probes, the geNOps, for Real-time Imaging of NO&#8226; Signals in Single Cells
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一个新的H2Se选择性光探头,基于氧还原.

Wenfang Liang1, Liyue Wang2, Zhili Yu3

  • 1College of Chemical Engineering, Beijing University of Chemical Technology (BUCT), Beijing 100029, China. yilong@mail.buct.edu.cn.

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|October 4, 2025
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概括

研究人员开发了一种名为Nap-NO2-mCl的新探针,用于在生物系统中高度选择性地检测化 (H2Se). 这种工具可以有效地监测活细胞中的H2Se.

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科学领域:

  • 生物化学 生物化学
  • 化学生物学 化学生物学
  • 分子生物学分子生物学

背景情况:

  • 化 (H2Se) 被认为是一种涉及各种生理和病理条件的生物活性分子.
  • 准确检测H2Se对于理解其生物作用至关重要.

研究的目的:

  • 开发一种高度选择性和敏感的化 (H2Se) 检测工具.
  • 调查开发的探头在监测H2Se在生物环境中的实用性.

主要方法:

  • 合理设计的H2Se探针利用酸芳香降解和自燃过程.
  • 纳普-NO2-mCl探针的合成和表征.
  • 对探针选择性,灵敏度和检测H2Se在活细胞中的性能进行评估.

主要成果:

  • 成功开发了一种新的H2Se检测平台Nap-NO2-mCl.
  • 纳普-NO2-mCl探针显示出对H2Se.的高选择性和敏感性.
  • 探测器有效地监测活细胞中的触发释放和外源H2Se.

结论:

  • 纳普-NO2-mCl探头是生物研究中H2Se检测的宝贵工具.
  • 这个平台有助于进一步研究H2Se.Se的生理和病理功能.