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We newly added AFFINIX QN µ(micro) to its AFFINIX series of QCM (Quartz Crystal Microbalance) Molecular Interaction Analyzers.

This model is suitable for many biomolecular interaction analyses, affinity and kinetic analysis such as protein-protein, protein-DNA, DNA-DNA, protein-polysaccharides and protein-lipid layer, and polymer, nanoparticle and material evaluations.

  • Fewer sample consumption (Buffer solution volume: 400 – 550 µl)
  • Measuring unit is replaceable with AFFINIX QN Standard unit (Buffer volume: 5-11ml, Organic solvent resistible Ceramic sensor)
    Individual 4 channel measurements
  • Measuring chambers can be customized from 1 channel to 4 channels
  • High sensitivity and low noise level
  • Kinetic analysis
  • Simple & easy operation
  • Low running cost
  • Compact size

AFFINIX QN µ(micro) sensor

Cup-typed QCM sensor cell for AFFINIX QN μ(micro) is easy to handle, suitable for immobilization of biological molecules. Standard sensor surface is gold that is versatile for immobilization of biomolecules, we have many immobilization protocols of molecules and blocking protocols of non-specific bindings. We can offer special sensor surface (e.g. SiO2, TiO2 coating) upon your request, please contact us.

  • High sensitivity 27 MHz frequency (fundamental resonance)
    AFFINIX QN µ sensor
  • Cup-typed sensor cell assembled with acrylic cell and quartz sensor
  • Standard gold surface
  • Metal Oxides coating sensors (e.g. SiO2, TiO2)
  • Immobilization protocols and services of molecules


  • Non label, real time monitoring for molecular recognition or reaction monitoring
  • Comparing experiments (specific or nonspecific ligand, analyte concentration, buffer condition, temperature. etc.)
  • Analysis of binding constant (dissociation constant) and kinetic parameters
  • Evaluation of affinity and kinetics for many molecules
  • Screening of high affinity antibody to specific ligand
  • Screening of high affinity ligand
  • Aggregation monitoring
  • Evaluation of polymer, thin film, nanoparticle, nanotube and other nanomaterials
  • Interaction analysis between many molecules
  • Long time measurement
  • Build up the experimental procedures
  • Measurements in crude solution
  • Analysis of enzymatic reaction

Software (AQUA)

For AFFINIX series measurements, we provide the analytical software that enable to do following analysis easily.

  • Equilibrium analysis (binding constant (Ka) and dissociation constant (Kd))
  • Kinetic analysis (binding rate (kon) and off rate (koff))

Sensor surface coating services

Standard sensor electrodes are made by gold (Au). Moreover, special coating electrodes are available as follows.

Au electrode sensors (standard)

AU sensor for AFFINIX QN µ (micro)

AU sensor for AFFINIX QN µ (micro)


Al (Aluminum)

Ag (Silver)

Ag (Silver)