Yes, nanosprings, so-named because of their appearance rather than their mechanical properties, were first explored several years ago, but now are available in commercial quantities for application developers.
Interesting link you provided selinz!
So it looks like nano springs have been around some time now since that article dates all the way to 2003. The important news here is that they found a good application in the biomedicine world.
Also in that other link is mentioned how they have to use all sort of really special equipment like electronic microscope to handle and measure the properties of such nano-devices.
This reminds me "inner space"... remember that movie?
It's interesting but it's almost a misnomer to call it a spring, in that they have yet to really measure any mechanical properities and it's unlikely that it will be used as such.
See http://nanotechweb.org/cws/article/tech/17297 for more info.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.