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Mechanisms of Membrane-bending

Mechanisms of Membrane-bending

The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...

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Updated: Jul 17, 2026

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

TEM研究单晶厚的b型导向纯二氧化地薄膜MFI的形成机制.

Shuang Li¹, Zijian Li, Krassimir N Bozhilov

¹Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, USA.

Journal of the American Chemical Society

|August 26, 2004

概括

本研究介绍了首次直接传输电子显微镜 (TEM) 对连续的,单晶厚的MFI热岩薄膜的观察. 这些发现支持同质的核和自我组装机制用于薄膜形成.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
晶体学晶体学是指结晶学.

背景情况:

石MFI膜对于催化和分离至关重要.
了解它们的形成机制是控制薄膜特性的关键.
之前的研究缺乏膜形成的直接微观结构证据.

研究的目的:

直接观察连续的微观结构,单晶厚的b面纯色烯酸MFI薄膜.
为了研究这些热石膜的核和生长机制.
为电影形成过程提供明确的证据.

主要方法:

通过现场结晶制造,制造自承载式化物MFI薄膜.
溶解钢基板以准备用于传输电子显微镜 (TEM) 的样本.
在薄膜内直接对一个大面积和单个地石晶体进行TEM观测.

主要成果:

首次直接对连续单晶厚的b方向纯化地岩MFI薄膜进行TEM观测.
详细描述晶体学定向关系,粒度边界和晶体质感.
支持同质核形成,晶体生长,自我组装和平面内晶体学控制的证据.

结论:

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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

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Published on: April 8, 2018

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

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这项研究提供了直接的证据,支持MFI热岩薄膜形成的均核和自我组装机制.
这些发现阐明了结晶生长,排列和方向控制的复杂过程.
这项工作提供了对制造高质量的热带石薄膜的基本见解.