dextrorotation

简明释义

英[ˌdekstrəʊrəʊˈteɪʃən]美[ˌdekstrəroʊˈteɪʃn]

n. （光的偏振面的）右旋（作用）

英英释义

单词用法

同义词

反义词

例句

1.Mujihe fault lies on the northern segment and its main motion characteristics is thrusting, and have dextrorotation slip component.

该断裂带北段的木吉河断层运动特征以逆冲为主，兼有右旋走滑分量。

2.Mujihe fault lies on the northern segment and its main motion characteristics is thrusting, and have dextrorotation slip component.

该断裂带北段的木吉河断层运动特征以逆冲为主，兼有右旋走滑分量。

3.Pharmaceutical companies rely on the dextrorotation data to ensure the quality of their products.

制药公司依赖于右旋数据来确保其产品的质量。

4.Researchers noted that the dextrorotation of the new compound was stronger than expected.

研究人员注意到新化合物的右旋比预期的要强。

5.The dextrorotation of glucose is a key characteristic in its identification.

葡萄糖的右旋是其鉴定的一个关键特征。

6.The sugar solution exhibited dextrorotation, indicating it rotates polarized light to the right.

该糖溶液表现出右旋，表明它将偏振光向右旋转。

7.In chemistry, we often measure the dextrorotation of compounds to determine their optical activity.

在化学中，我们经常测量化合物的右旋以确定它们的光学活性。

作文

In the realm of chemistry, the concept of chirality plays a crucial role in understanding the behavior of molecules. One of the fascinating aspects of chirality is the phenomenon known as dextrorotation, which refers to the ability of certain chiral compounds to rotate plane-polarized light to the right, or clockwise. This property is essential in distinguishing between different enantiomers, which are pairs of molecules that are mirror images of each other but cannot be superimposed. The significance of dextrorotation extends beyond mere academic interest; it has practical implications in fields such as pharmaceuticals, where the efficacy and safety of a drug can depend on its specific enantiomeric form.The term dextrorotation is derived from the Latin word 'dexter', meaning 'right'. When a chiral substance exhibits dextrorotation, it means that when plane-polarized light passes through a solution containing this substance, the light is rotated to the right. This rotation can be measured using a polarimeter, an instrument designed to quantify the degree of rotation caused by optically active substances. The degree of dextrorotation is specific to each compound and can be influenced by factors such as concentration, temperature, and the wavelength of the light used in the measurement.Understanding dextrorotation is particularly important in the context of drug development. Many drugs are chiral, meaning they exist in two enantiomeric forms. One enantiomer may have the desired therapeutic effect, while the other could be ineffective or even harmful. For example, the drug thalidomide, which was originally marketed as a sedative, was later found to have severe teratogenic effects when taken during pregnancy. This tragedy highlighted the importance of studying the dextrorotation of chiral drugs to ensure that only the beneficial enantiomer is used in treatments.Moreover, the ability to identify and isolate enantiomers based on their dextrorotation properties is a key aspect of modern organic chemistry. Chemists employ various techniques, such as chiral chromatography and asymmetric synthesis, to produce and purify enantiomers with high specificity. These methods allow for the development of more effective and safer medications, ultimately improving patient outcomes.In addition to its applications in pharmaceuticals, dextrorotation also finds relevance in the food industry. Certain flavor compounds and fragrances are chiral, and their sensory properties can vary significantly between enantiomers. By understanding the dextrorotation of these compounds, food scientists can enhance flavors and aromas to create more appealing products.In conclusion, dextrorotation is not merely a scientific term; it represents a critical concept in the study of chiral molecules with far-reaching implications in various fields. From drug development to food science, the ability to measure and understand dextrorotation allows researchers and industries to harness the unique properties of chiral compounds effectively. As our knowledge of chirality continues to evolve, the importance of dextrorotation will undoubtedly remain a cornerstone of scientific inquiry and innovation.

在化学领域，手性（chirality）的概念对于理解分子的行为至关重要。手性的一大迷人方面是被称为dextrorotation的现象，它指的是某些手性化合物能够将平面偏振光向右或顺时针方向旋转的能力。这一特性在区分不同的对映体时至关重要，对映体是彼此镜像但无法重叠的一对分子。dextrorotation的重要性不仅仅限于学术兴趣；它在制药等领域具有实际意义，因为药物的有效性和安全性可能依赖于其特定的对映体形式。术语dextrorotation源于拉丁词'dexter'，意为'右'。当一个手性物质表现出dextrorotation时，这意味着当平面偏振光通过含有该物质的溶液时，光线会向右旋转。这个旋转可以使用偏振仪进行测量，偏振仪是一种专门用于定量测量光学活性物质引起的旋转程度的仪器。dextrorotation的程度对于每种化合物都是特定的，并且可能受到浓度、温度以及所使用光波长等因素的影响。理解dextrorotation在药物开发的背景下尤为重要。许多药物是手性的，意味着它们存在两种对映体形式。一种对映体可能具有所需的治疗效果，而另一种则可能无效甚至有害。例如，药物沙利度胺（thalidomide）最初作为镇静剂上市，但后来发现怀孕期间服用会产生严重的致畸作用。这一悲剧突显了研究手性药物的dextrorotation的重要性，以确保仅使用有益的对映体进行治疗。此外，基于其dextrorotation特性识别和分离对映体的能力是现代有机化学的关键方面。化学家采用各种技术，如手性色谱和不对称合成，来高效地生产和纯化特定的对映体。这些方法使得开发更有效和更安全的药物成为可能，最终改善患者的治疗效果。除了在制药中的应用外，dextrorotation在食品工业中也具有相关性。某些风味化合物和香料是手性的，其感官特性在对映体之间可能有显著差异。通过理解这些化合物的dextrorotation，食品科学家可以增强风味和香气，创造出更具吸引力的产品。总之，dextrorotation不仅仅是一个科学术语；它代表了手性分子研究中的一个关键概念，在各个领域具有深远的影响。从药物开发到食品科学，测量和理解dextrorotation的能力使研究人员和行业能够有效利用手性化合物的独特性质。随着我们对手性的知识不断发展，dextrorotation的重要性无疑将继续成为科学探究和创新的基石。