polyamine

简明释义

英[/ˌpɒliˈeɪmiːn/]美[/ˌpɒliˈeɪmiːn/]

n. [有化] 聚胺

英英释义

单词用法

同义词

反义词

例句

1.Polymethylene polyphenyl polyamine is an intermediate product of polymethylene polyphenyl polyisocyanate (MDI).

多亚甲基多苯基多胺是多苯基甲烷多异氰酸脂(MDI)的中间体。

2.The flocculation of a complex of modified cassava starch and polyamine in stone wastewater with high turbidity, high ss and high chroma was investigated.

研究了改性木薯淀粉和聚胺的复合物在高浊度、高ss及高色度的石材加工废水中絮凝性能。

3.The experimental results show that polyamine polymers are organic flocculants with high performance and multi-function.

综合研究结果表明，聚环氧氯丙烷—二甲胺是一种高效多功能的有机絮凝剂。

4.Results: The contents of total Polyamine and 3 kinds of polyamines compositions in all samples were different.

结果：不同样品的3种多胺类成份及总多胺含量均有一定差异。

5.The flocculation of a complex of modified cassava starch and polyamine in stone wastewater with high turbidity, high ss and high chroma was investigated.

研究了改性木薯淀粉和聚胺的复合物在高浊度、高ss及高色度的石材加工废水中絮凝性能。

6.Polyamine cobalt complexes are a kind of models of oxygen carriers.

多胺合钴配合物是一类氧载体模型化合物。

7.Polyamine cobalt complexes with small molecular weights and simple structures, can be served as a model compound of oxygen carriers to be investigated.

多胺钴配合物分子量小，结构简单，可以作为氧载体模型化合物进行研究。

8.Polyamine - epoxy adduct is used as waterborne epoxy hardener generally.

水性环氧固化剂一般采用多元胺-环氧加成物。

9.In animal studies, higher intake of polyamines 多胺 was associated with improved gut health.

在动物研究中，较高的多胺摄入量与改善肠道健康相关。

10.The research focused on how polyamine 多胺 metabolism affects cellular aging.

研究集中在多胺代谢如何影响细胞衰老。

11.Certain polyamines 多胺 are known to play a role in regulating gene expression.

某些多胺被认为在调节基因表达中发挥作用。

12.The addition of polyamine 多胺 to the growth medium enhanced cell division in cultured cells.

在培养基中添加多胺促进了细胞培养中的细胞分裂。

13.Researchers found that the levels of polyamine 多胺 in plant tissues increased significantly during stress conditions.

研究人员发现植物组织中多胺的水平在压力条件下显著增加。

作文

Polyamines are organic compounds that play crucial roles in cellular processes. These molecules, which contain two or more amino groups, are found in all living organisms and are essential for cell growth and function. The most common types of polyamines (多胺) include putrescine, spermidine, and spermine. Each of these polyamines (多胺) has unique properties and functions, making them vital for various biological activities. One of the key roles of polyamines (多胺) is their involvement in cellular proliferation. They are known to promote cell division and differentiation, which is particularly important during development and tissue repair. For instance, when cells are damaged, an increase in polyamines (多胺) is often observed, indicating their role in the healing process. Furthermore, polyamines (多胺) have been shown to stabilize cellular structures, such as DNA and RNA, thereby protecting them from oxidative damage. In addition to their structural roles, polyamines (多胺) also participate in regulating gene expression. They can influence the activity of various transcription factors, which are proteins that help control the transcription of DNA into RNA. This regulatory capacity allows polyamines (多胺) to modulate the expression of genes involved in cell cycle regulation, apoptosis, and stress responses. Research has also highlighted the connection between polyamines (多胺) and various diseases. For example, elevated levels of polyamines (多胺) have been associated with cancer progression. Cancer cells often exhibit increased polyamines (多胺) synthesis, which supports their rapid growth and survival. As a result, targeting polyamines (多胺) pathways is being explored as a potential therapeutic strategy in cancer treatment. Moreover, polyamines (多胺) have been implicated in neurobiology. They are involved in neurotransmission and have been shown to affect neuronal growth and differentiation. Research suggests that alterations in polyamines (多胺) levels may contribute to neurodegenerative diseases, such as Alzheimer's and Parkinson's disease. Understanding the role of polyamines (多胺) in the brain could lead to new insights into the mechanisms underlying these conditions. In conclusion, polyamines (多胺) are essential biomolecules that contribute to numerous physiological functions. Their involvement in cell growth, gene regulation, and disease processes underscores their importance in biology and medicine. Ongoing research into polyamines (多胺) promises to reveal further insights into their roles and potential applications in health and disease management. As we continue to explore the complexities of cellular processes, the significance of polyamines (多胺) will undoubtedly become even clearer, paving the way for innovative therapeutic approaches that harness their unique properties.