It is our pleasure to mention the PicoQuant Company as a user example for our nanorulers.
Our GATTA-STED 140RYR ruler (with an ATTO 647N edge-to-edge distance of 160 nm (in red) and an Alexa Fluor 594 mark in the middle (in yellow)) was presented on the 8^th European Short Course on “Time-resolved Microscopy and Correlation Spectroscopy” from March 8-10, 2016 in Berlin. The MicroTime 200 STED thereby created eye-catching images and made it easy to resolve the two-color ruler by overlaying both channels, showing a clear separation of the spots. 
Further nanorulers with a mark-to-mark distance of 90 nm were presented on the 20^th international workshop on “Single Molecule Spectroscopy and Ultrasensitive Analysis in the Life Sciences” from September 2^nd to 5^th 2014 in Berlin. The MicroTime 200 STED easily resolved the 90 nm distance between the two marks on each ruler. Corroborating the long durability of our ruler samples this measurement could be repeated two months later yielding to nearly the same result.

MicroTime 200 STED: super-resolution Image of GATTA-STED 140RYR

MicroTime 200 STED: super-resolution Image of GATTA-STED 90R

MicroTime 200 STED: 2 months old GATTA-STED 90R