disulfides

简明释义

英[ˈdaɪsəlfaɪdz]美[ˈdaɪsəlfaɪdz]

[无化] 二硫化物

英英释义

单词用法

同义词

反义词

例句

1.The essential oil contains all kinds of the aromatic substances in Allium tuberosum Rottl. ex Spr. Determined by GC-MS-DS, 20 compounds in essential oil are mainly disulfides and trisulfides.

韭菜的香气成分全部集中于所含精油中，确定其主要成分为二硫和三硫化合物等20种物质。

2.The essential oil contains all kinds of the aromatic substances in Allium tuberosum Rottl. ex Spr. Determined by GC-MS-DS, 20 compounds in essential oil are mainly disulfides and trisulfides.

韭菜的香气成分全部集中于所含精油中，确定其主要成分为二硫和三硫化合物等20种物质。

3.This one-pot procedure provides a useful and important synthesis route to disulfides under simple operation and mild conditions.

该过程采用“一锅法” ，操作方便，后处理简单，条件温和，提供了一条合成二硫醚的重要路线。

4.Obviously in this structure the disulfides are also unpaired, but at least 2 Bridges are in the vicinity of each other.

这个结构也没有形成二硫键，但至少有两对半胱氨酸离得很近。

5.Aryl disulfides, for example, inhibit polyolefin oxidation.

例如芳基二硫化物可抑制聚烯烃的氧化。

6.The formation of disulfides 二硫化物 is critical in stabilizing protein structures.

二硫化物的形成对稳定蛋白质结构至关重要。

7.In the laboratory, scientists often analyze disulfides 二硫化物 to understand the folding of proteins.

在实验室中，科学家们经常分析二硫化物以了解蛋白质的折叠。

8.Certain enzymes can break down disulfides 二硫化物 to facilitate biological reactions.

某些酶可以分解二硫化物以促进生物反应。

9.The presence of disulfides 二硫化物 in hair products helps to strengthen and repair damaged hair.

护发产品中存在的二硫化物有助于增强和修复受损的头发。

10.During the synthesis of pharmaceuticals, disulfides 二硫化物 are often used as intermediates.

在药物合成过程中，二硫化物通常用作中间体。

作文

In the world of chemistry, the term disulfides refers to a specific type of chemical bond that occurs between two sulfur atoms. These bonds are crucial in various biological processes and play a significant role in the structure and function of proteins. Understanding disulfides is essential for anyone studying biochemistry or molecular biology, as they contribute to the stability of protein structures through the formation of covalent links between different parts of a polypeptide chain. Disulfide bonds are formed when two cysteine amino acids, which contain sulfhydryl (-SH) groups, undergo an oxidation reaction. During this process, the hydrogen atoms from the sulfhydryl groups are removed, allowing the sulfur atoms to bond together, creating a disulfide bridge. This bridge can significantly influence the three-dimensional shape of proteins, which is vital for their functionality. For instance, enzymes often rely on the integrity of disulfides to maintain their active conformation, ensuring that they can effectively catalyze biochemical reactions. Moreover, disulfides are not only important in natural proteins but also in synthetic materials. In the field of polymer chemistry, disulfides can be used to create cross-linked polymers, enhancing their mechanical properties and thermal stability. This application is particularly relevant in industries such as rubber manufacturing, where the strength and elasticity of materials are paramount. The study of disulfides extends beyond mere chemistry; it has implications in medicine and biotechnology as well. For example, certain diseases are associated with the improper formation or reduction of disulfides in proteins. Understanding these mechanisms can lead to better diagnostic tools and therapeutic strategies. Researchers are investigating how manipulating disulfides in proteins could potentially reverse the effects of misfolded proteins that lead to conditions such as Alzheimer's and Parkinson's disease. In addition, the role of disulfides in the formation of antibodies is another area of interest. Antibodies, which are crucial components of the immune system, often rely on disulfide bonds to maintain their structure and function. The stability provided by these bonds allows antibodies to effectively bind to antigens and neutralize pathogens. Understanding how disulfides contribute to antibody functionality can enhance vaccine development and improve immune responses. In conclusion, the significance of disulfides in both biological and synthetic contexts cannot be overstated. Their ability to form stable connections within proteins and other polymers makes them a key topic of study in chemistry and related fields. As research continues to uncover the complexities of disulfides, we gain deeper insights into their roles in health, disease, and material science. Thus, mastering the concept of disulfides is not only beneficial for academic pursuits but also for practical applications that impact our daily lives.

在化学的世界中，术语二硫化物指的是发生在两个硫原子之间的一种特定类型的化学键。这些键在各种生物过程中至关重要，并且在蛋白质的结构和功能中发挥着重要作用。理解二硫化物对于任何学习生物化学或分子生物学的人来说都是必不可少的，因为它们通过在多肽链的不同部分之间形成共价链接，促进了蛋白质结构的稳定性。 当两个含有巯基（-SH）基团的半胱氨酸氨基酸经历氧化反应时，便形成了二硫键。在这个过程中，巯基基团中的氢原子被去除，使得硫原子能够结合在一起，形成一个二硫化物桥。这个桥可以显著影响蛋白质的三维形状，而这对于它们的功能至关重要。例如，酶通常依赖于二硫化物的完整性来维持其活性构象，从而确保它们能够有效催化生化反应。 此外，二硫化物不仅在天然蛋白质中重要，在合成材料中也同样重要。在聚合物化学领域，二硫化物可用于创建交联聚合物，从而增强其机械性能和热稳定性。这一应用在橡胶制造等行业尤为相关，因为材料的强度和弹性至关重要。 对二硫化物的研究不仅限于化学本身；它在医学和生物技术中也具有重要意义。例如，某些疾病与蛋白质中二硫化物的错误形成或还原有关。理解这些机制可以导致更好的诊断工具和治疗策略。研究人员正在调查如何操控蛋白质中的二硫化物，以潜在地逆转导致阿尔茨海默病和帕金森病等疾病的错误折叠蛋白的影响。 此外，二硫化物在抗体形成中的作用也是一个值得关注的领域。抗体是免疫系统的重要组成部分，通常依赖于二硫化物键来维持其结构和功能。这些键提供的稳定性使抗体能够有效结合抗原并中和病原体。理解二硫化物如何促进抗体功能，可以增强疫苗开发并改善免疫反应。 总之，二硫化物在生物和合成环境中的重要性不容低估。它们在蛋白质和其他聚合物内部形成稳定连接的能力使其成为化学及相关领域的重要研究主题。随着研究的不断深入，我们对二硫化物在健康、疾病和材料科学中的作用有了更深刻的理解。因此，掌握二硫化物的概念不仅对学术追求有益，而且对影响我们日常生活的实际应用也具有重要意义。