Related Experiment Video
Updated: Jun 24, 2026
08:27
A Nanobar-Supported Lipid Bilayer System for the Study of Membrane Curvature Sensing Proteins in vitro
Published on: November 30, 2022
Bend, buckle, and fold: mechanical engineering with nanomembranes
Dae-Hyeong Kim1, John A Rogers
1Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, Illinois 61801, USA.
ACS Nano
|March 25, 2009
Summary
Researchers created novel mechano-electronic superlattices using silicon nanomembranes and chemical vapor deposition. This breakthrough enables unique electronic devices by coupling strain with electronic properties in advanced nanomaterials.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Physics
Background:
- Nanomaterials research progresses through waves, with nanomembranes and graphene as the current focus.
- Inorganic semiconductor nanomembranes offer diverse materials, large-area growth, and potential for high-performance electronics and optoelectronics.
Discussion:
- Investigating the mechanics of nanomembranes and strain's effect on their electronic properties is a key research area.
- The Lagally group developed a novel method combining single-crystalline silicon nanomembranes with chemical vapor deposition.
Key Insights:
- This technique forms "mechano-electronic" superlattices, integrating mechanical and electronic functionalities.
- The resulting superlattices exhibit unique properties arising from the strain-property coupling.
Outlook:
- These mechano-electronic superlattices pave the way for developing unusual classes of electronic devices.
- Further research could unlock advanced applications in flexible electronics, sensors, and tunable optoelectronic systems.
Related Concept Videos
01:15Mechanisms 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...
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
01:20Bending and Torsional Moments
Bending and torsional moments are two fundamental concepts in structural engineering. They play an important role in understanding the behavior of materials and structures under different loading conditions.
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...
01:10Bending
Pure bending is a fundamental concept in structural mechanics, essential for understanding how materials deform under symmetrical loads without direct forces. Pure bending occurs when prismatic members, such as beams, are subjected to equal and opposite moments that induce bending. The phenomenon is crucial as it allows for predicting stress distributions without the influence of axial or shear forces.
In pure bending, the bending stress in a beam is calculated based on the bending moment and...
In pure bending, the bending stress in a beam is calculated based on the bending moment and...
01:09Bending of Material: Problem Solving
In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
01:18Residual Stresses in Bending
In the study of elastoplastic members subjected to bending moments, understanding the loading and unloading phases is crucial for assessing material behavior and structural integrity. During the loading phase, as the bending moment increases, the material initially responds elastically, adhering to Hooke's Law, where stress is directly proportional to strain. When the load exceeds the yield strength, plastic deformation occurs, resulting in permanent strain and deformation that remains even...
01:07Symmetric Member in Bending
In the study of the mechanics of materials, analyzing the behavior of prismatic members under opposing couples is crucial for understanding internal stress distributions, which are essential for structural design. When subjected to couples, a prismatic member experiences internal forces that maintain equilibrium. A couple, characterized by two equal and opposite forces, creates a moment but no resultant force. The internal forces at any section cut of the member must balance these external...