precipitin

简明释义

英[prɪˈsɪpɪtɪn]美[prɪˈsɪpətɪn]

n. [免疫] 沉淀素

英英释义

单词用法

同义词

反义词

例句

1.The skin precipitin may help the island of langerhans rope secretion, can suppress the insulin stimulation the chrysanthemum grape sugar use.

肤淀素可帮助胰岛索分泌，能抑制胰岛素刺激的菊萄糖的利用。

2.The AGAR diffusion and quantitative precipitin reaction show that the antigenicity of BSA decreases considerably after NBS treatment.

琼脂扩散及免疫定量实验结果显示NBS处理后bsa的抗原性减弱。

3.The skin precipitin may help the island of langerhans rope secretion, can suppress the insulin stimulation the chrysanthemum grape sugar use.

肤淀素可帮助胰岛索分泌，能抑制胰岛素刺激的菊萄糖的利用。

4.Avian Escherichia coli pili antigen was detected with agar gel diffusion precipitin test.

用琼脂扩散沉淀反应检测了大肠杆菌菌毛抗原。

5.The island of langerhans contains many pancreas precipitin starch type protein precipitation. 2 drill the urine sickness.

胰岛内含许多胰淀素的淀粉样蛋白沉淀。2型钻尿病患。

6.In immunology, precipitin 沉淀素 reactions help identify specific proteins in a mixture.

在免疫学中，沉淀素反应有助于识别混合物中的特定蛋白质。

7.The lab technician performed a test to detect the presence of precipitin 沉淀素 in the serum sample.

实验室技术员对血清样本进行了检测，以确定是否存在沉淀素。

8.Researchers used precipitin 沉淀素 tests to analyze ancient animal remains.

研究人员使用沉淀素测试分析古代动物遗骸。

9.The precipitin 沉淀素 test is essential for diagnosing certain diseases.

沉淀素测试对于诊断某些疾病至关重要。

10.The presence of precipitin 沉淀素 can indicate an immune response to an infection.

存在沉淀素可能表明对感染的免疫反应。

作文

In the field of biology and immunology, the term precipitin refers to a type of antibody that is capable of forming a precipitate when it binds to its specific antigen. This binding occurs in a solution, leading to the formation of a visible solid that can be separated from the liquid phase. Understanding how precipitin works is crucial for various applications, including diagnostic tests, vaccine development, and even forensic science.The concept of precipitin is rooted in the immune response, where the body produces antibodies to neutralize foreign substances such as bacteria and viruses. When an antigen enters the body, the immune system recognizes it as a threat and responds by producing specific antibodies. Among these antibodies are precipitins, which play a vital role in identifying and eliminating pathogens.One of the most well-known applications of precipitin tests is in serology, the study of blood serum and its components. In serological tests, scientists can use precipitin reactions to determine whether a person has been exposed to a particular pathogen. For instance, if a patient’s serum contains antibodies that react with a specific antigen, a precipitate will form, indicating the presence of those antibodies. This reaction not only confirms exposure but also provides insight into the immune status of the individual.Moreover, precipitin tests have been instrumental in the field of forensic science. Forensic experts often rely on these tests to identify substances at a crime scene. For example, if blood is found at a crime scene, a precipitin test can help determine whether the blood is human or animal based on the specific antibodies present. This information can be critical in establishing links between suspects and crime scenes.In addition to their role in diagnostics and forensics, precipitins are also important in vaccine development. Vaccines work by introducing a harmless component of a pathogen (an antigen) into the body, prompting the immune system to produce antibodies, including precipitins. This process prepares the immune system to respond more effectively if it encounters the actual pathogen in the future. Thus, understanding the mechanisms behind precipitin formation can help researchers design more effective vaccines.Furthermore, the study of precipitin reactions has led to advancements in biotechnology. Scientists can engineer antibodies for various purposes, including targeted drug delivery and cancer therapy. By harnessing the specificity of precipitins, researchers are developing innovative treatments that can precisely target diseased cells while minimizing damage to healthy tissue.In conclusion, the term precipitin encompasses a significant aspect of immunology and its applications across various fields, including medicine, forensics, and biotechnology. The ability of precipitins to form precipitates upon binding to antigens is not just a fascinating biochemical phenomenon; it is a powerful tool that enhances our understanding of the immune system and aids in the development of diagnostic and therapeutic strategies. As research continues to unveil the complexities of the immune response, the importance of precipitin in advancing science and medicine cannot be overstated.

在生物学和免疫学领域，术语precipitin指的是一种抗体，当其与特定抗原结合时，能够在溶液中形成沉淀。这种结合发生在溶液中，导致可见固体的形成，可以从液相中分离出来。理解precipitin的工作原理对于各种应用至关重要，包括诊断测试、疫苗开发甚至法医学。precipitin的概念源于免疫反应，当身体产生抗体以中和外来物质如细菌和病毒时。当抗原进入体内时，免疫系统将其识别为威胁，并通过产生特定抗体作出反应。其中一些抗体就是precipitin，它们在识别和消灭病原体方面发挥着重要作用。在血清学研究中，precipitin测试是最著名的应用之一。科学家可以使用precipitin反应来确定一个人是否暴露于特定病原体。例如，如果患者的血清中含有与特定抗原反应的抗体，就会形成沉淀，表明这些抗体的存在。这种反应不仅确认了暴露，还提供了个体免疫状态的见解。此外，precipitin测试在法医学领域也起着重要作用。法医学专家通常依靠这些测试来识别犯罪现场的物质。例如，如果在犯罪现场发现血液，precipitin测试可以帮助确定血液是人类还是动物的，基于特定抗体的存在。这些信息在建立嫌疑人与犯罪现场之间的联系时至关重要。除了在诊断和法医学中的作用，precipitin在疫苗开发中也很重要。疫苗通过将病原体的无害成分（抗原）引入体内，促使免疫系统产生抗体，包括precipitin。这个过程使免疫系统在未来遇到实际病原体时能够更有效地反应。因此，理解precipitin形成背后的机制可以帮助研究人员设计更有效的疫苗。此外，precipitin反应的研究推动了生物技术的发展。科学家可以工程化抗体用于各种目的，包括靶向药物递送和癌症治疗。通过利用precipitin的特异性，研究人员正在开发创新治疗方法，可以精确靶向病变细胞，同时尽量减少对健康组织的损害。总之，术语precipitin涵盖了免疫学及其在医学、法医学和生物技术等各个领域的应用的重要方面。precipitin在与抗原结合后形成沉淀的能力不仅是一个迷人的生化现象；它是一个强大的工具，增强了我们对免疫系统的理解，并有助于诊断和治疗策略的发展。随着研究继续揭示免疫反应的复杂性，precipitin在推动科学和医学进步中的重要性不容小觑。