Switch language

Intet replika Rolex ur er komplet uden high-end autentiske Rolex tilfælde til at holde dem sikre. Holdbar og luksuriøs,luksus replika ure danmark disse er perfekte til en fornuftig opbevaringsløsning eller en autentisk præsentation.

Colour-changing strain sensors

Responsable : Thomas Maurer, ICD/LNIO

Towards a novel generation of strain sensors integrated into matter
Some nano deformations visible to the naked eye thanks to innovative integrated optical nanosensors


Metal NanoParticles (MNPs) are known to support Localized Surface Plasmons (LSP) that are highly sensitive, not only to the MNPs chemical composition or size, but also to interparticle resonant coupling when the gap between MNPs is less than the nanoparticle diameter.

This open the way to new smart sensors integrated into matter: some color-changing plasmonic strain sensors based on the spectral variation of plasmonic coupling versus interparticle distances when stretching a composite film that incorporates MNPs.

A fruitful collaboration between the LNIO and Laval University (Québec) has been started to self-organize dense Au NPs rings onto elastomeric film in order to increase sensitivity.

The first prototype, made in collaboration with Univ. Geneva and Univ. Calabria, consisted of 23 nm Au NPs immobilized onto a PDMS substrate with an average distance of 39 nm between neighbouring NPs.

In this way plasmonic coupling effects become visible and the resulting gold-coated flexible tape can be utilized as a color-changing strain sensor.

As nanoparticules act as nanosensors able to predict deformations (SHM), some potential applications could be found in packaging, nanoimprint or industrial paint.


> 1 patent relative to plasmomechanics


plasmonic strain sensor

Technological objectives:

  • Non-contact sensors
  • Large deformations
  • Easy-of-use
  • Direct integration into matter
Partners: LNIO, Univ. Laval (Québec), Univ. Geneva, Univ. Calabria
Patent: Synthesis process for innovative strain sensors based on the monitoring of nanoparticle optical coupling variations

plasmonic strain sensorplasmonic strain sensor




La prima linea di difesa è lo scudo magnetico all'interno della custodia. Realizzato in leghe ferromagnetiche,imitazione rolex orologi circonda e protegge il movimento. Questa invenzione è stata brevettata da Rolex nel 1956 e da allora è stata ulteriormente migliorata. La seconda linea di difesa coinvolge alcune delle componenti chiave del movimento,high quality replica watches realizzate con materiali innovativi non magnetici.