V2EX autoradiogram

AUTORADIOGRAM

释义 Definition

自显影图(放射自显影图):把含放射性同位素的样品(如标记的 DNA、RNA、蛋白质)放在感光胶片或成像板上,通过其放射线使介质曝光,从而得到的影像,用于显示样品中放射性信号的位置与强度。(在分子生物学、生物化学实验中常见)

发音 Pronunciation (IPA)

/toredirm/

例句 Examples

The autoradiogram showed a clear band at 5 kilobases.
自显影图在 5 kb 处显示出一条清晰的条带。

After transferring the proteins to a membrane, the researchers used a radiolabeled probe and developed an autoradiogram to quantify binding across multiple samples.
研究人员将蛋白转移到膜上后,使用放射性标记的探针并显影得到自显影图,用于定量比较多组样品的结合情况。

词源 Etymology

由 **auto-**(“自我、自动”)+ **radio-**(“放射、放射性”)+ -gram(“图像、记录”)构成,字面意思是“由放射性自己‘生成’的图像记录”,强调影像并非由外部光源拍摄,而是由样品自身的放射性导致曝光形成。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Molecular Cloning: A Laboratory Manual(Sambrook & Russell)实验流程中常用该词描述放射探针检测后的成像结果。
  • Current Protocols in Molecular Biology(系列实验手册)在核酸/蛋白检测步骤中频繁出现,用于记录与分析放射信号图像。
  • Genes(Benjamin Lewin)讲解基因与分子实验方法时,会提到通过(自)放射成像获得的“autoradiogram”等数据呈现形式。
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