Lactose biosensor for the dairy industry

Lactose biosensor for the dairy industry

lactosens system

Intuitive lactose sensor for professional costumers in the dairy industry

Resilient and Robust

  • Applicable to a wide range of dairy products
  • Free from interference (fruits, vitamins, sugars, flavors such as vanilla, coffee, cocoa)
  • High precision with RSD <10%; factory calibrated


Simple and Fast

  • Simple sample preperation – easy handling
  • Intuitive software minimizes training requirements
  • Fast result in a few minutes

The world's first commercial 3G biosensor system

Enabled by next generation enzymes, DirectSens has developed the first commercial 3rd generation biosensor system.

LactoSens® is a biosensor assay kit for resilient and robust, rapid and accurate detection of lactose in lactose-free and low-lactose dairy products.

Visit the corresponding homepage for more information and to contact our distribution partners.

3rd Generation Glucose Sensing Enzyme

3rd Generation Glucose Sensing Enzyme


Direct Electron Transfer Enzyme for glucose biosensor applications

Improved accuracy

  • The absence of interference can increase accuracy under
    real-world conditions.


Simplified manufacturing

  • Streamlining the manufacturing process to achieve the highest reproducibility and lower manufacturing costs.


New applications

  • Enter new markets with the highest performance at competitive prices.

Oxygen independent

The enzyme sensing mechanism is independent of oxygen.

oxygen vgreyx

Calibration in the presence and absence of oxygen: Each calibration represents three independent sensors measured in the presence and absence of oxygen. The red curve describes the current response of sensors immersed in N2-purged PBS buffer, while the black values where recorded without purging. The experimental data show the independence of the sensing mechanism from oxygen.

No Interference

The enzyme enables an extremely robust biosensor architecture. 


Each compound was measured in the presence of 5 mM (90 mg dL-1) glucose at concentrations recommended by the CLSI POCT05-A guideline. The boxplot shows data from 5 replicates. None of the tested substances changed the sensor reading by more than 10%. Note that no selective membrane was used.

Glucose Sensor Reference Design

ref desing toolkit

To assist you with implementation, DirectSens provides a Reference Design for the Glucose Sensing technology. Enzymes, materials and prototyping procedures are provided to support validation of our technology in your laboratory.

Lactate enzymes for biosensing

Lactate enzymes for biosensing


Lactate enzymes for biosensing

Lactate is a very important parameter in clinical chemistry, but it is also becoming increasingly important in other areas such as sports medicine.

Currently, only a very limited number of enzymes are available for this task, lacking critical performance characteristics such as stability.

DirectSens has developed a new biosensor enzyme family (LactaZyme®) to address the need for better enzymes and enable new devices.