metachromatic

简明释义

英[ˌmetəkrəʊˈmætɪk]美[ˈmetəkroʊˈmætɪk]

adj. 异染性的；因光异色的

英英释义

单词用法

同义词

反义词

例句

1.It is already fully metachromatic in aqueous solution.

它在水溶液中已经完全变色。

2.It is already fully metachromatic in aqueous solution.

它在水溶液中已经完全变色。

3.Using metachromatic agents, they were able to differentiate between live and dead cells.

通过使用变色试剂，他们能够区分活细胞和死细胞。

4.The metachromatic properties of the material made it useful in various applications.

该材料的变色特性使其在多种应用中非常有用。

5.Researchers found that the metachromatic effect could enhance the visibility of certain markers.

研究人员发现，变色效应可以增强某些标记的可见性。

6.In histology, metachromatic staining is crucial for identifying certain types of tissues.

在组织学中，变色染色对于识别某些类型的组织至关重要。

7.The scientist used a metachromatic dye to observe the cellular structures more clearly.

科学家使用了一种变色染料来更清晰地观察细胞结构。

作文

The world of biology is filled with fascinating phenomena, one of which is the property known as metachromatic. This term refers to the ability of certain dyes to change color when they bind to specific biological molecules, particularly those containing nucleic acids or proteins. The study of metachromatic properties has profound implications in various fields, including histology, cytology, and molecular biology. Understanding this concept can enhance our knowledge of cellular structures and functions.In histology, for example, metachromatic staining techniques are used to visualize different tissues under a microscope. When a tissue sample is treated with a metachromatic dye, it can reveal distinct colors based on the chemical composition of the cells. This allows scientists and medical professionals to identify specific types of cells and diagnose diseases more accurately. For instance, a common metachromatic dye called toluidine blue O is often used to stain mast cells, which are crucial in allergic responses and inflammation.Moreover, the metachromatic phenomenon is not limited to histological applications. In molecular biology, researchers utilize metachromatic dyes in techniques such as fluorescence microscopy and flow cytometry. By tagging nucleic acids or proteins with these dyes, scientists can track their location and behavior within living cells. This capability is essential for understanding cellular processes, such as gene expression and protein interactions, which are fundamental to life.One of the remarkable aspects of metachromatic dyes is their ability to exhibit different colors depending on the concentration and environment of the target molecules. This property can be attributed to changes in the electronic structure of the dye when it interacts with other molecules. For instance, a metachromatic dye may appear blue at low concentrations but shift to red at higher concentrations. Such behavior not only adds complexity to the interpretation of results but also provides valuable insights into the dynamics of molecular interactions.In addition to their scientific significance, metachromatic dyes have practical applications in various industries. For example, they are used in the development of diagnostic tests, where the presence of a particular biomolecule can trigger a color change, indicating a positive result. This principle is employed in rapid tests for infectious diseases, where metachromatic indicators provide quick visual feedback.Furthermore, the beauty of metachromatic colors can be appreciated in artistic contexts as well. Artists and designers often experiment with metachromatic pigments to create dynamic and visually appealing works. The interplay of colors that change with light or angle adds depth and intrigue to their creations, showcasing the aesthetic potential of this scientific concept.In conclusion, the term metachromatic encapsulates a captivating aspect of science that bridges biology, technology, and art. Its implications in research and diagnostics make it a powerful tool in understanding the complexities of life. As we continue to explore the mysteries of biology, the metachromatic phenomenon will undoubtedly play a significant role in advancing our knowledge and capabilities. Whether in the laboratory or the studio, the beauty and utility of metachromatic properties inspire both scientific inquiry and creative expression.

生物学的世界充满了迷人的现象，其中之一就是被称为metachromatic的特性。这个术语指的是某些染料在与特定生物分子结合时改变颜色的能力，特别是那些含有核酸或蛋白质的分子。研究metachromatic特性对组织学、细胞学和分子生物学等多个领域具有深远的影响。理解这一概念可以增强我们对细胞结构和功能的认识。例如，在组织学中，metachromatic染色技术用于在显微镜下可视化不同的组织。当组织样本用metachromatic染料处理时，可以根据细胞的化学组成显示出不同的颜色。这使得科学家和医疗专业人员能够更准确地识别特定类型的细胞并诊断疾病。例如，一种常见的metachromatic染料叫做toluidine blue O，通常用于染色肥大细胞，这些细胞在过敏反应和炎症中至关重要。此外，metachromatic现象不仅限于组织学应用。在分子生物学中，研究人员利用metachromatic染料进行荧光显微镜和流式细胞术等技术。通过将核酸或蛋白质标记上这些染料，科学家可以追踪它们在活细胞中的位置和行为。这种能力对于理解细胞过程（如基因表达和蛋白质相互作用）至关重要，这些过程是生命的基础。metachromatic染料的一个显著特点是它们根据目标分子的浓度和环境表现出不同的颜色。这种特性可以归因于染料在与其他分子相互作用时电子结构的变化。例如，一种metachromatic染料在低浓度时可能呈现蓝色，但在高浓度时则转变为红色。这种行为不仅增加了结果解释的复杂性，还提供了对分子相互作用动态的宝贵见解。除了科学意义外，metachromatic染料在各个行业也有实际应用。例如，它们用于开发诊断测试，其中某种生物分子的存在可以触发颜色变化，表明阳性结果。这一原理被应用于传染病的快速检测中，metachromatic指示剂提供快速的视觉反馈。此外，metachromatic颜色的美感在艺术上下文中也值得欣赏。艺术家和设计师经常实验metachromatic颜料，以创造动态和视觉上吸引人的作品。颜色的相互作用随着光线或角度的变化而变化，为他们的创作增添了深度和趣味，展示了这一科学概念的美学潜力。总之，术语metachromatic概括了一个迷人的科学方面，连接了生物学、技术和艺术。它在研究和诊断中的意义使其成为理解生命复杂性的强大工具。随着我们继续探索生物学的奥秘，metachromatic现象无疑将在推进我们的知识和能力方面发挥重要作用。无论是在实验室还是工作室，metachromatic特性的美丽和实用性都激励着科学探究和创造性表达。