Control and tunability of self assembly in colloidal soft matter: novel structures, materials science, and kinetics.

胶体软物质中自组装的控制和可调性：新颖结构、材料科学和动力学。

• 批准号: 312443-2008
• 负责人: Yethiraj, Anand
• 金额: $ 3.18万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=514906
• 关键词: Control; tunability; self; assembly; colloidal

How materials self-organize into ordered structures, and how they get stuck in disordered states are among the most profound problems in condensed matter and biophysics. Monodisperse colloids in suspension can be conceived of as "big atoms" to study these fundamental problems. Self-assembly in colloids closely mimics thermodynamic phase behavior in atomic fluids. Tunability of colloidal interactions allows one to "tune" the colloidal free energy: external fields can tune the energetic contributions to the free energy while size and shape polydispersity can be used to control the entropic contributions.

材料如何自组织成有序结构，以及它们如何陷入无序状态，是凝聚态物质和生物物理学中最深刻的问题之一。悬浮液中的单分散胶体可以被视为“大原子”来研究这些基本问题。胶体中的自组装非常类似于原子流体中的热力学相行为。胶体相互作用的可调节性允许人们“调节”胶体自由能：外部场可以调节对自由能的能量贡献，而尺寸和形状多分散性可用于控制熵贡献。