hydrogel

简明释义

英[ˈhaɪdrəˌdʒel]美[ˈhaɪdrədʒel]

n. [物化] 水凝胶

英英释义

单词用法

同义词

反义词

例句

1.To study the effect of silicone hydrogel contact lens on tears, which was compared to the traditional hydrogel contact lens.

研究硅水凝胶材料的角膜接触镜与传统水凝胶角膜接触镜对配戴者泪液及干眼症状的影响。

2.Objective To observe the immunologic changes in patients who have complications after polyacrylamide hydrogel (HPG) injection.

目的观察聚丙烯酰胺水凝胶(hpg)注射后发生并发症者的人体免疫学变化。

3.Dehydration behavior of polyvinyl alcohol glutaraldehyde hydrogel has been investigated in this paper.

本文对聚乙烯醇-戊二醛水凝胶的脱水行为进行了研究。

4.Kidney injury; Renal artery; Embolization, therapeutic; Hydrogel.

肾损伤；肾动脉；栓塞，治疗性；水凝胶。

5.Polyacrylamide hydrogel injected into the loose connective tissue below the deep temporal fascia could spread down to the cheek.

注入颞筋膜下疏松结缔组织中者，充填物可经颧弓深面再向前沿面颊脂体蔓延至颊部。

6.Objective This article reports the clinical application of Polyacrylamide hydrogel, as a new kind of soft tissue implant material.

目的探讨聚丙烯酰胺水凝胶作为一种新型软组织充填材料的临床应用情况。

7.The Boston researchers describe their new design like a pita pocket, with a big wad of drug in the middle of a hydrogel exterior.

波士顿研究者描述这项设计就像皮塔饼（译者注，希腊和中东地区一种馅多皮薄的圆饼）。

8.The cosmetic industry has started using hydrogels 水凝胶 in face masks for their moisturizing properties.

化妆品行业已经开始在面膜中使用水凝胶，因其保湿特性。

9.In agriculture, hydrogels 水凝胶 can be used to retain moisture in the soil, helping plants survive during dry periods.

在农业中，水凝胶可以用来保持土壤中的水分，帮助植物在干旱期间生存。

10.Scientists are developing hydrogels 水凝胶 that can change shape in response to environmental stimuli.

科学家们正在开发能够对环境刺激做出反应而改变形状的水凝胶。

11.The new wound dressing is made from a special type of hydrogel 水凝胶 that keeps the area moist and promotes healing.

这种新型伤口敷料采用了一种特殊类型的水凝胶，可以保持区域湿润并促进愈合。

12.Researchers are exploring the use of hydrogels 水凝胶 in drug delivery systems to improve the efficacy of medications.

研究人员正在探索将水凝胶用于药物传递系统，以提高药物的疗效。

作文

Hydrogels are fascinating materials that have gained significant attention in various fields, including medicine, agriculture, and biotechnology. A hydrogel is a three-dimensional network of hydrophilic polymers that can absorb and retain large amounts of water while maintaining their structure. This unique property makes hydrogels particularly useful for applications that require moisture retention, such as wound dressings and drug delivery systems. In this essay, we will explore the properties, applications, and future potential of hydrogels. One of the most remarkable characteristics of hydrogels is their ability to swell in water. When exposed to moisture, these polymers can expand significantly, often by several hundred times their original size. This swelling behavior is due to the hydrophilic nature of the polymer chains, which attract water molecules and create a gel-like consistency. The ability to hold water makes hydrogels ideal for use in medical applications, especially in wound care. For instance, hydrogel dressings provide a moist environment that promotes healing and reduces pain for patients. Additionally, they can help to prevent infections by acting as a barrier against external contaminants.In the field of drug delivery, hydrogels offer a controlled release mechanism for therapeutic agents. By incorporating drugs into the hydrogel matrix, researchers can design systems that release medications at a predetermined rate. This approach not only enhances the effectiveness of the treatment but also minimizes side effects by ensuring that drugs are released gradually rather than all at once. Moreover, hydrogels can be engineered to respond to specific stimuli, such as pH or temperature changes, allowing for even more precise control over drug release.Beyond medicine, hydrogels have found applications in agriculture as well. They can be used to improve soil moisture retention, which is crucial for plant growth, especially in arid regions. When mixed with soil, hydrogels can absorb rainwater or irrigation, releasing it slowly during dry periods. This ability to retain moisture helps to reduce water consumption and supports sustainable farming practices.The versatility of hydrogels extends to tissue engineering as well. Scientists are exploring the use of hydrogels as scaffolds for cell growth, aiming to create artificial tissues and organs. These materials can mimic the natural extracellular matrix, providing cells with the necessary support and environment to grow and function properly. As research progresses, the potential for hydrogels in regenerative medicine continues to expand.In conclusion, hydrogels are remarkable materials with a wide range of applications across various fields. Their unique properties, such as high water absorption and biocompatibility, make them invaluable in medicine, agriculture, and biotechnology. As technology advances, we can expect to see even more innovative uses for hydrogels, ultimately improving the quality of life for many individuals. The ongoing research into hydrogels holds great promise, paving the way for breakthroughs that could transform healthcare and environmental sustainability. In summary, understanding the properties and applications of hydrogels is essential for leveraging their potential benefits. With continued exploration and innovation, hydrogels may play a pivotal role in addressing some of the most pressing challenges faced by society today.

水凝胶是一种引人入胜的材料，已在医学、农业和生物技术等多个领域引起了广泛关注。水凝胶是由亲水性聚合物组成的三维网络，这些聚合物能够吸收和保持大量水分，同时保持其结构。这种独特的特性使得水凝胶在需要保持湿度的应用中尤为有用，例如伤口敷料和药物输送系统。在这篇文章中，我们将探讨水凝胶的性质、应用和未来潜力。水凝胶最显著的特征之一是其在水中膨胀的能力。当暴露于潮湿环境时，这些聚合物可以显著膨胀，通常是其原始大小的几百倍。这种膨胀行为是由于聚合物链的亲水性，它们吸引水分子并形成类似凝胶的稠度。保持水分的能力使得水凝胶非常适合用于医疗应用，尤其是在伤口护理方面。例如，水凝胶敷料提供了一个湿润的环境，有助于愈合并减少患者的疼痛。此外，它们还可以通过充当外部污染物的屏障来帮助防止感染。在药物输送领域，水凝胶提供了一种对治疗剂的控制释放机制。通过将药物纳入水凝胶基质中，研究人员可以设计出以预定速率释放药物的系统。这种方法不仅增强了治疗的有效性，还通过确保药物逐渐释放而不是一次性释放来最小化副作用。此外，水凝胶可以被工程化以响应特定的刺激，例如pH值或温度变化，从而实现对药物释放的更精确控制。除了医学，水凝胶在农业中也找到了应用。它们可以用于改善土壤的保湿能力，这对于植物生长至关重要，特别是在干旱地区。当与土壤混合时，水凝胶可以吸收雨水或灌溉水，在干旱时期缓慢释放。这种保持水分的能力有助于减少水的消耗，并支持可持续农业实践。水凝胶的多功能性还扩展到组织工程。科学家们正在探索使用水凝胶作为细胞生长的支架，旨在创造人工组织和器官。这些材料可以模拟自然细胞外基质，为细胞提供必要的支持和环境，使其能够正常生长和发挥功能。随着研究的进展，水凝胶在再生医学中的潜力不断扩大。总之，水凝胶是一种具有广泛应用的卓越材料，涵盖多个领域。其独特的特性，如高水分吸收和生物相容性，使其在医学、农业和生物技术中不可或缺。随着科技的进步，我们可以期待看到水凝胶的更多创新用途，最终改善许多人的生活质量。对水凝胶的持续研究蕴含着巨大的潜力，为可能改变医疗保健和环境可持续性的一系列突破铺平了道路。总之，理解水凝胶的性质和应用对于利用其潜在利益至关重要。随着不断的探索和创新，水凝胶可能在解决当今社会面临的一些最紧迫的挑战中发挥关键作用。