affinity

affinity的音标是[ə"fɪnɪtɪ]，意思是“亲属关系；密切关系；亲和力”。

基本翻译为“亲属关系”时，可以结合其词源和词义，将速记技巧总结为：记单词时要注意词根和词缀的关联性，通过联想和想象构建记忆关联性。例如，可以将“aff”看作“朝向”的意思，“in”表示“在内”，“ti”表示“东西”等，这样可以将affinity理解为“朝向内部的东西”，即亲属之间的亲密关系。

以上内容仅供参考，建议查阅英语词典获取更准确的信息。

Affinity，英文词源来自拉丁语affinitas，意为“亲密关系，联系”。

相关单词：

1. Affinity Profiling：亲和性分析，用于分析生物分子相互作用网络的方法。

2. Affinity Labels：亲和标签，用于生物分子相互作用研究的标记方法。

3. Affinity Purification：亲和纯化，一种用于从复杂生物样品中分离和鉴定蛋白质相互作用的方法。

4. Affinity Separation：亲和分离，利用亲和标签或亲和层析介质进行生物分子分离的技术。

5. Affinity Chromatography：亲和色谱，利用蛋白质与配体之间的特异性结合进行分离纯化的一种色谱技术。

6. Affinity Microarray：亲和微阵列，一种生物分子相互作用检测技术，利用微阵列芯片上的不同配体与样品中的蛋白质相互作用。

7. Affinity Purification Mass Spectrometry (AP-MS)：亲和纯化质谱法，一种用于鉴定蛋白质相互作用网络的技术。

8. Ligand Affinity：配体亲和力，指配体与受体之间相互作用的能力。

9. Ligand Affinity Measurement：配体亲和力测定，用于评估配体与受体之间相互作用强度的实验方法。

10. Intermolecular Affinity：分子间亲和力，指两个分子之间相互作用的能力。

以上这些单词都与Affinity一词密切相关，涵盖了生物化学、蛋白质组学、质谱学等多个领域的相关技术和方法。

Affinity常见短语：

1. affinity chromatography 亲和层析

2. affinity labeling 亲和标记

3. affinity matrix 亲和吸附剂

4. affinity protein 亲和蛋白

5. affinity purification 亲和纯化

6. affinity selection 亲和选择

7. affinity tag 亲和标签

例句：

1. The protein was purified using affinity chromatography.

该蛋白质通过亲和层析进行了纯化。

2. The antibodies were selected based on their affinity for the target antigen.

这些抗体是根据它们与目标抗原的亲和力进行选择的。

3. The protein was tagged with an affinity matrix for easy purification.

该蛋白质被标记上亲和吸附剂，以便于进行简单纯化。

英文小作文：

Affinity is a crucial factor in many scientific experiments, allowing us to selectively separate and purify substances. When conducting experiments, it is essential to carefully select the method of purification based on the affinity of the substance for the target molecule.

For example, in protein research, affinity chromatography is commonly used to isolate specific proteins from complex mixtures. By carefully selecting an appropriate matrix and buffer system, researchers can achieve high yields and purity of their target protein.

Similarly, affinity labeling is a technique used to identify binding partners of a protein of interest. By labeling the protein with a radioactive or fluorescent probe that binds specifically to its target molecule, researchers can identify other proteins that interact with it.

Affinity is also important in medicine, where antibodies are selected based on their affinity for specific antigens. These antibodies are used in immunotherapy and diagnosis to identify and treat diseases.

In conclusion, affinity plays a crucial role in many scientific experiments and applications, allowing us to achieve high yields and purity of our desired substances. Understanding and utilizing affinity effectively is essential for successful research and development efforts.