Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Nov 27;5:17152. doi: 10.1038/srep17152

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2015, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) SEM image of a vertically free-standing polymer nanocoil spring. The scale bar is 5 μm. (b) Procedure showing a compression test using AFM. (c) A representative force curve taken from one of the springs showing the applied force on the cantilever with respect to the position. The annotations in the graph correspond to the illustrations in (b). Inset to (c) The enlarged graph in the region of 0 to −800 nm showing a moderate linear slope. (d) Illustration showing the system regarded as a series of two springs. k_s and k_c represent the spring constant of the polymer spring and that of the AFM cantilever (13 N/m), respectively.