Dedicated to Research

surface plasmon resonance

KEI's Surface Plasmon Resonance Instruments are on the market since 1997.  KEI stands for high quality yet cost effective instruments dedicated to the research market.

KEI's  Surface Plasmon Resonance instruments used for analysis of biomolecular interactions in real time without labeling.  KEI's systems also provide the possibility of simultaneous electrochemical measurement with a separate potentiostat / galvanostat.

Surface Plasmon Resonance (SPR) has become a standard tool in life sciences and pharmaceutical research laboratories. The study and characterisation of molecular interactions is essential to explore the structure-function relationships of biomolecules and to aid our understanding of biological systems in life sciences, like antibody-antigen, ligand-receptor, protein-nucleic acid, cell adhesion and drug development. With the option of electrochemistry, an extra tool is available for the study of enzymes, ion channels, membrane proteins, polymer layers, polymerisation and polymer-biomolecular interactions.

SPR provides quantitative information, which can be used to determine reaction kinetics and affinity constants for molecular interactions, as well as the active concentration of biomolecules in solution. It also provides qualitative information and allows small-molecule screening to epitope mapping and complex assembly studies.

Why Choose KEI?

Unique benefits from Innovative design

KEI's SPR instruments boast an innovative design which unlike many of its competitors is not flow based. The analyte remains whirling on the sensor excited by the peristaltic pumps. Many of the advantages of using KEI's SPR instruments over those of the main competitors stem from this smart design:


Feature
KEI
Biacore
Reichert
ICx Nomadic
1-channel measurement
Yes
No
Yes
Yes
2-channel measurement
Yes
Yes
Yes
Yes
Multi channel (4 or more)
Soon!
Yes
No
No
Comfortable prices
Yes
No
Yes
Yes
Parallel
Yes
No/Yes
No
No
Measurement time unlimited
Yes
No
No
No
Fixed small sample volume
Yes
No
No
No
Chemically inert
Yes
No
Medium
No
Electrochemistry combination
Yes
No
Yes
No
Robustness
High
Low
Medium
Low
Flexibility of sample handling
High
Low
Low
Low
Contamination issues
No
Yes
Yes
Yes


Choose a smart cost effective SPR! 

Contact us now for a quote or more information.