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相关概念视频

Micelles01:30

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...

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相关实验视频

Updated: Jun 29, 2026

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules
10:45

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Published on: June 20, 2020

在聚合物薄膜中的三维有序的气泡阵列.

M Srinivasarao1, D Collings, A Philips

  • 1School of Textile and Fiber Engineering and School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA. mohan@tfe.gatech.edu

Science (New York, N.Y.)
|April 9, 2001
PubMed
概括
此摘要是机器生成的。

研究人员使用气流和蒸发式冷却在聚合物薄膜中创建了有序的气泡. 该技术允许对光子材料中的应用控制泡大小.

关键词:
美国国家航空航天局的学科植物生物学.非NASA中心的中心.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物科学 聚合物科学
  • 纳米技术 纳米技术

背景情况:

  • 创建有序的宏性材料是一项挑战.
  • 现有的方法往往无法控制毛孔大小和排列.
  • 光子学中的应用需要精确控制材料结构.

研究的目的:

  • 报告一种新的方法,用于在聚合物薄膜中形成三维有序的气泡阵列.
  • 为了研究基于热毛细管对流的模板机制.
  • 通过空气流速来证明对气泡尺寸的控制.

主要方法:

  • 在玻璃幻灯片上在挥发性溶剂中造稀释聚合物溶液.
  • 在表面上利用流动的潮湿空气流.
  • 使用蒸发式冷却来诱导呼吸数字和形成水滴阵列.

主要成果:

  • 形成一个三维有序阵列的六边形包装的水滴.
  • 保存这些滴滴阵列作为球形气泡在最终的聚合物薄膜.
  • 通过调整空气流速来证明控制气泡尺寸.

结论:

  • 热毛细管对流为有序的多孔材料提供了有效的模板机制.
  • 开发的方法提供了对聚合物薄膜孔径的简单控制.
  • 这些有序的宏孔性材料对光子带间隙和光学停止带应用具有前景.