Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Collisions in Multiple Dimensions: Introduction01:05

Collisions in Multiple Dimensions: Introduction

6.8K
It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
6.8K
Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

5.5K
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
5.5K
Structural Properties and Dimensions of Lumber01:21

Structural Properties and Dimensions of Lumber

405
Wood's structural properties derive from fibers aligned along the tree's length, contributing significantly to its mechanical strength. Wood exhibits up to twenty times greater tensile strength along these fibers compared to across them, and generally shows better performance under compression than tension. The length of fibers varies, with hardwoods having fibers around one twenty-fifth inch long and softwoods ranging from one-eighth to one-third inch.
The strength characteristics of...
405
Design Example: Dimensioning of Concrete Masonry Construction01:13

Design Example: Dimensioning of Concrete Masonry Construction

306
For the construction of a storeroom using concrete masonry units, it's essential to align the dimensions of the structure with the actual sizes of the blocks and the intended mortar joints. On the site in question, there's a stockpile of concrete masonry blocks with a nominal size of eight by eight by sixteen inches, which are to be used in the construction of the storeroom.
The site engineer has laid out a plan for the storeroom with external dimensions of twelve feet in length and...
306
¹H NMR Signal Multiplicity: Splitting Patterns01:13

¹H NMR Signal Multiplicity: Splitting Patterns

6.9K
When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
6.9K
Polymers02:34

Polymers

40.9K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
40.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Implanting Atomically Dispersed Fe and Mo Sites into 3D Scaffolds: A Scalable Route to Bifunctional Water Splitting Electrocatalysts.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Confinement-Enhanced Interfacial Anchoring beyond the Rule of Mixtures in Polymer-Graphene Heterostructures.

ACS applied materials & interfaces·2026
Same author

Subsurface Vacancy Engineering Enables Atomically Clean and Oxidation-Resistant Copper Interfaces for Anode-Free Lithium Metal Batteries.

ACS nano·2026
Same author

How Slippery Surfaces Retain Their Function: Lubricant Film Dynamics Upon Droplet Contact.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Observation of Kondo cloud-coupling in a mirror-symmetric carbon nanotube array-molybdenum structure.

Nature communications·2026
Same author

Artificial Intelligence for Materials Science: Transforming Research Paradigms.

Chemical reviews·2026

Related Experiment Video

Updated: Feb 1, 2026

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.9K

Engineering Surface Patterns with Shape Memory Polymers: Multiple Design Dimensions for Diverse and Hierarchical

Lingyu Zhao1,2,3, Liangpei Zhang1,4, Jun Zhao1,3

  • 1CAS Key Laboratory of Nanosystem and Hierarchical Fabrication and CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China.

ACS Applied Materials & Interfaces
|December 1, 2018
PubMed
Summary
This summary is machine-generated.

Shape memory polymers enable novel micro-/nano-patterning of gold films. This technique allows for diverse, hierarchical, and localized surface structures for advanced applications like high-sensitivity pressure sensors.

Keywords:
hierarchical structureslocal patterningpiezoresistive pressure sensorshape memory polymerwrinkle

More Related Videos

Laser Micromachining for Polymer Surface Topography Design
05:49

Laser Micromachining for Polymer Surface Topography Design

Published on: September 19, 2025

488
Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
09:37

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

13.5K

Related Experiment Videos

Last Updated: Feb 1, 2026

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.9K
Laser Micromachining for Polymer Surface Topography Design
05:49

Laser Micromachining for Polymer Surface Topography Design

Published on: September 19, 2025

488
Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
09:37

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

13.5K

Area of Science:

  • Materials Science
  • Polymer Science
  • Nanotechnology

Background:

  • Surface patterning is crucial for flexible electronics, microfluidics, and optics.
  • Traditional methods using bilayer systems face challenges in creating localized patterns due to substrate limitations.
  • Instability in bilayer systems is a common approach for micro-/nano-pattern generation.

Purpose of the Study:

  • To investigate the use of cross-linked polyethylene (cPE), a shape memory polymer (SMP), as a flexible substrate for creating micro-/nano-structures.
  • To explore how the shape memory effect of cPE can be leveraged to design diverse and hierarchical surface patterns.
  • To demonstrate the fabrication of versatile surface patterns and their application in piezoresistive pressure sensors.

Main Methods:

  • Utilizing a shape memory polymer (cPE) as a flexible substrate for sputtered gold (Au) films.
  • Exploiting the shape memory effect of cPE by controlling film thickness, heating time, and thermal field (global/local).
  • Fabricating hierarchical, superimposed, and localized surface patterns using the cPE/Au system.

Main Results:

  • The shape memory effect of cPE provides new avenues for designing complex surface topographies.
  • Diverse hierarchical, superimposed, and local surface patterns were successfully demonstrated on the cPE/Au system.
  • Piezoresistive pressure sensors fabricated using these patterned surfaces exhibited high sensitivity, a wide operational range, and excellent cyclic stability.

Conclusions:

  • Shape memory polymers offer unique advantages for creating arbitrary and complex surface patterns.
  • The cPE/Au system provides a versatile platform for advanced micro-/nano-patterning.
  • This approach holds significant potential for developing next-generation electronic and optical devices.