Trade Fairs, Exhibitions, Conferences

As the world's leading laboratory trade fair, analytica 2026 provides a comprehensive market overview and information on the latest developments in laboratory technology, analytics and biotechnology. Fraunhofer IMM showcasies the latest developments in on-site multi-ion monitoring for on-line nutrient-laden water control in vertical hydroponic systems from our Division Bioanalytics & Diagnostics. 

Interested in our technologies? Make an appointment and get in touch with our applied research experts.

Visit us in Hall A3 Booth 312 at the Fraunhofer joint booth.

AutoNutri - On-site multi-ion monitoring system for on-line nutrient-laden water control in vertical hydroponic systems to minimize environmental impact

The aim of the project is the development of an on-site multi-ion monitoring system for the automated on-line control of fertilizer input in vertical closed-loop hydroponic systems based on feedback-controlled feeding of nutrients. The monitoring system enables effective use of nutrients for optimal plant growth through targeted regeneration of the nutrient solution, thus contributing to a reduction in water pollution due to premature disposal of nutrients dissolved in water into the environment.

Nutrient monitoring is based on the direct potentiometric determination of ions using ion-selective sensors. The choice of ions is characteristic of the growth of five selected crops. The sensors are integrated into a microfluidic system, which allows automated sample acquisition and adjustment of the measurement matrix. Prototypes will be made available to end users for beta testing.

Fraunhofer IMM develops the microfluidic based ion monitoring system as a laboratory demonstrator consisting of the modules: sensor technology, microfluidic chip, actuator technology, electronics, and software control.