hydrophilic colloid

简明释义

亲水胶体

英英释义

例句

1.In cosmetics, hydrophilic colloids 亲水胶体 are often included to retain moisture in skin care products.

在化妆品中，亲水胶体 hydrophilic colloids 通常被加入以保持护肤品中的水分。

2.The stability of emulsions can be enhanced by adding hydrophilic colloids 亲水胶体 that help prevent separation.

通过添加能防止分离的亲水胶体 hydrophilic colloids 可以增强乳液的稳定性。

3.In laboratory experiments, scientists use hydrophilic colloids 亲水胶体 to create stable suspensions.

在实验室实验中，科学家使用亲水胶体 hydrophilic colloids 来创建稳定的悬浮液。

4.In the food industry, hydrophilic colloid 亲水胶体 such as gelatin is used to improve the texture of desserts.

在食品工业中，亲水胶体 hydrophilic colloid 如明胶被用来改善甜点的口感。

5.The pharmaceutical formulation often requires hydrophilic colloids 亲水胶体 to ensure proper drug delivery.

制药配方通常需要亲水胶体 hydrophilic colloids 以确保药物的有效释放。

作文

In the realm of materials science and chemistry, the term hydrophilic colloid refers to a type of colloidal substance that has a strong affinity for water. These substances can dissolve or disperse in water, forming a stable mixture. Understanding the properties and applications of hydrophilic colloid is crucial for various industries, including food, pharmaceuticals, and cosmetics. Colloids are mixtures where tiny particles are distributed throughout a medium, but they do not settle out over time. The key characteristic that distinguishes hydrophilic colloid from other types of colloids is its interaction with water. Hydrophilic means 'water-loving,' indicating that these colloids can form hydrogen bonds with water molecules, leading to a stable and homogeneous dispersion.One common example of a hydrophilic colloid is gelatin, which is derived from collagen found in animal connective tissues. When gelatin is mixed with water, it swells and forms a gel-like consistency. This property makes it an essential ingredient in various culinary applications, such as desserts, jellies, and sauces. The ability of gelatin to hold water also contributes to the texture and mouthfeel of these products, enhancing their appeal to consumers.Another important hydrophilic colloid is agar, a gelatinous substance obtained from red algae. Agar is widely used in microbiology as a culture medium, allowing scientists to grow bacteria and fungi in a controlled environment. Its hydrophilic nature allows it to absorb water and create a firm yet flexible gel, making it ideal for laboratory applications.In the pharmaceutical industry, hydrophilic colloid materials play a vital role in drug formulation. Many medications require a suitable medium to ensure proper delivery and absorption in the body. For instance, certain hydrophilic colloid agents are used as excipients in tablets and capsules, aiding in the dissolution of active ingredients. This enhances the bioavailability of drugs, ensuring that patients receive the intended therapeutic effects.The cosmetic industry also benefits from the use of hydrophilic colloid substances. Many skincare products incorporate these ingredients due to their moisture-retaining properties. For example, hyaluronic acid, a popular hydrophilic colloid, can hold up to 1,000 times its weight in water, making it an excellent moisturizer. By attracting and retaining moisture, it helps to keep the skin hydrated and plump, reducing the appearance of fine lines and wrinkles.In conclusion, the significance of hydrophilic colloid in various fields cannot be overstated. Whether in food production, pharmaceuticals, or cosmetics, these substances play a crucial role in enhancing product quality and consumer experience. As research continues to uncover new applications and benefits of hydrophilic colloid, we can expect to see even more innovative uses in the future. Understanding the properties and behavior of hydrophilic colloid is essential for scientists, engineers, and manufacturers alike, as they strive to develop new materials and improve existing formulations.

在材料科学和化学领域，术语亲水胶体指的是一种对水具有强烈亲和力的胶体物质。这些物质可以溶解或分散在水中，形成稳定的混合物。理解亲水胶体的特性和应用对于食品、制药和化妆品等各个行业至关重要。胶体是将微小颗粒分散在介质中的混合物，但它们不会随着时间的推移而沉淀。亲水胶体与其他类型胶体的关键特征是其与水的相互作用。亲水意味着“喜水”，表明这些胶体能够与水分子形成氢键，从而导致稳定和均匀的分散。一个常见的亲水胶体例子是明胶，它是从动物结缔组织中的胶原蛋白提取的。当明胶与水混合时，它会膨胀并形成类似果冻的稠度。这种特性使其成为各种烹饪应用中不可或缺的成分，如甜点、果冻和酱汁。明胶保持水分的能力也有助于这些产品的质地和口感，从而增强了消费者的吸引力。另一个重要的亲水胶体是琼脂，这是一种从红藻中获得的胶状物质。琼脂在微生物学中广泛用作培养基，允许科学家在受控环境中培养细菌和真菌。由于其亲水特性，它能够吸收水分并形成坚固而灵活的凝胶，使其非常适合实验室应用。在制药行业，亲水胶体材料在药物配方中发挥着至关重要的作用。许多药物需要合适的介质以确保在体内的正确传递和吸收。例如，某些亲水胶体剂被用作片剂和胶囊中的赋形剂，帮助活性成分的溶解。这增强了药物的生物利用度，确保患者获得预期的治疗效果。化妆品行业也从使用亲水胶体物质中受益。许多护肤产品因其保湿特性而加入这些成分。例如，透明质酸是一种流行的亲水胶体，能够吸收自身重量的1000倍水分，使其成为极佳的保湿剂。通过吸引和保持水分，它有助于保持皮肤的水润和丰满，减少细纹和皱纹的出现。总之，亲水胶体在各个领域的重要性不容小觑。无论是在食品生产、制药还是化妆品中，这些物质在提高产品质量和消费者体验方面发挥着至关重要的作用。随着研究不断揭示亲水胶体的新应用和好处，我们可以期待未来会看到更多创新的用途。理解亲水胶体的特性和行为对于科学家、工程师和制造商来说都是必不可少的，因为他们努力开发新材料和改进现有配方。