ultramicrotomy

简明释义

英[ˌʌltrəˈmaɪkrəʊtəmi]美[ˌʌltrəˈmaɪkroʊtəmi]

[医][生物] 超薄切片术

[医][生物] 超薄切片法

英英释义

单词用法

同义词

反义词

例句

1.Objective: to investigate the technology in preparation and ultramicrotomy of non-biological specimens for electron microscopy.

目的：探讨非生物标本的电镜样品制备及超薄切片技术。

2.Objective: to investigate the technology in preparation and ultramicrotomy of non-biological specimens for electron microscopy.

目的：探讨非生物标本的电镜样品制备及超薄切片技术。

3.Using ultramicrotomy, scientists can create sections as thin as 50 nanometers.

科学家们可以使用超薄切片技术制作厚度仅为50纳米的切片。

4.The precision of ultramicrotomy is crucial for accurate imaging in histopathology.

在组织病理学中，超薄切片技术的精确性对准确成像至关重要。

5.The technique of ultramicrotomy is essential for preparing samples for electron microscopy.

对于电子显微镜样本的准备，超薄切片技术是必不可少的。

6.In the field of materials science, ultramicrotomy allows for the examination of polymer structures at the nanoscale.

在材料科学领域，超薄切片技术使得可以在纳米尺度上检查聚合物结构。

7.Researchers often use ultramicrotomy to obtain thin sections of biological tissues.

研究人员经常使用超薄切片技术来获取生物组织的薄切片。

作文

In the field of biological and materials sciences, the technique of ultramicrotomy is essential for obtaining thin sections of samples for microscopic examination. Ultramicrotomy refers to the process of cutting samples into ultra-thin slices, typically in the range of 50 to 100 nanometers in thickness. This method is particularly important because many biological specimens and materials require such fine slicing to reveal their internal structures without damaging them. The advent of ultramicrotomy has revolutionized the way scientists study the intricate details of cells, tissues, and various materials at the nanoscale.The process of ultramicrotomy involves the use of a specialized instrument known as an ultramicrotome. This device is equipped with a sharp knife or diamond blade that can slice through even the most delicate specimens. One of the key advantages of ultramicrotomy is that it allows for the preservation of the natural state of the sample, which is crucial for accurate analysis. Unlike traditional microtomy, which may produce thicker sections that can obscure fine details, ultramicrotomy provides unparalleled resolution.To perform ultramicrotomy, researchers first need to prepare their samples appropriately. This often involves embedding the specimen in a resin to provide support during the cutting process. Once embedded, the sample is placed in the ultramicrotome, where the operator adjusts the thickness settings and carefully advances the knife to achieve the desired slice. Each section is collected on a microscope slide, ready for further analysis under an electron microscope.One of the most significant applications of ultramicrotomy is in the study of cellular structures. For example, in the field of histology, pathologists rely on this technique to examine tissue samples for signs of disease. By observing the fine details of cell morphology, they can make more accurate diagnoses and better understand the progression of diseases. In addition, ultramicrotomy is also utilized in materials science to investigate the properties of polymers, metals, and composites at the nanoscale, enabling engineers and scientists to design stronger and more efficient materials.Despite its advantages, ultramicrotomy does come with challenges. The technique requires a high level of skill and precision, as any mistakes in slicing can lead to compromised samples. Additionally, the cost of ultramicrotomes and the necessary materials can be prohibitive for some laboratories. Nevertheless, the benefits of ultramicrotomy far outweigh these challenges, making it an invaluable tool in modern scientific research.In conclusion, ultramicrotomy is a critical technique that has enhanced our understanding of biological and material structures at the nanoscale. Its ability to produce ultra-thin sections without compromising the integrity of the sample allows scientists to explore previously unseen details. As technology continues to advance, the applications of ultramicrotomy are likely to expand, further contributing to the fields of biology and materials science. The importance of mastering this technique cannot be overstated, as it opens up new avenues for research and discovery, ultimately leading to innovations that can benefit society as a whole.

在生物学和材料科学领域，超薄切片技术是获取样本进行显微镜检查的关键技术。超薄切片技术指的是将样本切割成超薄切片的过程，通常厚度在50到100纳米之间。这种方法尤其重要，因为许多生物标本和材料需要如此精细的切割，以揭示其内部结构而不损坏它们。超薄切片技术的出现彻底改变了科学家研究细胞、组织和各种材料在纳米尺度上复杂细节的方式。超薄切片技术的过程涉及使用一种称为超薄切片机的专用仪器。该设备配备有锋利的刀片或金刚石刀片，可以切割甚至是最精致的标本。超薄切片技术的一个主要优点是，它允许保留样本的自然状态，这对于准确分析至关重要。与传统的切片技术相比，后者可能会产生较厚的切片，从而遮蔽细节，而超薄切片技术提供无与伦比的分辨率。为了进行超薄切片技术，研究人员首先需要适当地准备他们的样本。这通常涉及将标本嵌入树脂中，以在切割过程中提供支持。一旦嵌入，样本就被放置在超薄切片机中，操作员调整厚度设置，并小心地推进刀片以实现所需的切片。每个切片都被收集在显微镜载玻片上，准备在电子显微镜下进行进一步分析。超薄切片技术最重要的应用之一是在细胞结构研究中。例如，在组织学领域，病理学家依赖这种技术来检查组织样本是否有疾病迹象。通过观察细胞形态的细微细节，他们可以做出更准确的诊断，更好地理解疾病的进展。此外，超薄切片技术还用于材料科学，以调查聚合物、金属和复合材料在纳米尺度上的特性，使工程师和科学家能够设计出更强大和更高效的材料。尽管有其优势，超薄切片技术也面临挑战。这项技术需要高水平的技能和精确度，因为切割中的任何错误都可能导致样本受损。此外，超薄切片机及其所需材料的成本对某些实验室来说可能是一个负担。然而，超薄切片技术的好处远远超过这些挑战，使其成为现代科学研究中不可或缺的工具。总之，超薄切片技术是一项关键技术，它增强了我们对生物和材料结构在纳米尺度上理解的能力。其能够在不损害样本完整性的情况下生产超薄切片的能力使科学家能够探索以前未见的细节。随着技术的不断进步，超薄切片技术的应用可能会扩展，进一步促进生物学和材料科学的发展。掌握这项技术的重要性不言而喻，因为它为研究和发现开辟了新的途径，最终带来可以惠及整个社会的创新。