K-One is Kimialys’ proprietary surface chemistry.
It is the platform behind all our solutions, enabling optimal immobilization of any ligand (e.g., antibodies, proteins, oligonucleotides) on any gold surface (nanoparticles, chips, electrodes).
A self-assembled monolayer (SAM) offering precise control over surface interactions.
K-One provides the simultaneous control over ligand exposure, orientation, density, and distribution, maximizing binding site accessibility for target analytes while protecting the surface against non-specific interactions, resulting in clear, conclusive data without background noise or measurement bias.
K-One enhances assay performance with no trade-offs.
Our functionalization technology improves sensitivity, specificity, selectivity, reproducibility, and stability without forcing trade-offs between these key assay parameters, even in complex biological matrices (e.g., plasma, serum, milk, urine, saliva). . It is also cost-effective, requiring lower ligand consumption and fewer assay materials.
Kimialys, enabling Life Sciences since 2020.
Over the past five years, we’ve worked with partners across industry and academia and delivered 100+ projects across complex real-world applications. Today, we support some of the most innovative assays under development.

Figure 1 - Ligands bind to the surface of gold nanoparticles or chips in an uncontrolled or even random fashion, resulting in only 20-30% of the ligands being available to interact with their target, while excessive non-specific binding occurs on the surface.
Figure 2 - The K-One technology allows precise control over the ligands' exposure, density, and distribution, while providing a protective shield to the surface.
Exposure: ~90% of the ligands are available to interact with their target, including the most complex structures that are typically challenging to immobilize.
Shield: robust protection of the surface against non-specific binding, reducing background noise and enabling high-quality, reliable data.
Density/distribution: optimized ligand density and spatial distribution minimize avidity effects, mass transport limitations, and recapture, enabling measurements under true affinity-controlled conditions. This also reduces ligand requirements by up to 30x, significantly lowering assay costs.

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Pre-functionalization of SPR sensor chips using K-One® surface chemistry, specifically customized to your applications
Optimal ligand immobilization following Kimialys' proprietary protocol
In-house biomolecular interaction analysis with our own SPRi/SPR platforms
Reliable access to binding and kinetics data, complemented by high-quality reports and presentations, offering actionable insights
We harness both our expertise in SPRi and proprietary K-One® technology on chip to swiftly identify and rank both desired and undesired binding interactions among numerous candidates. This ensures our customers receive consistent and reliable results, accelerating their pursuit of new therapeutics.
We can immobilize any ligands:
Antibodies
Nanobodies
Small molecules
Proteins
DNA/RNA
Whole cells
Peptides
Aptamers
And more...
Our results are consistent and reliable for any complex biological matrices:
Plasma
Serum
Blood
Stem cell supernatant
Hybridoma supernatant
And more...
Reliable measurement of kinetic constants is pivotal for the development of new therapeutics. Leveraging our proprietary K-One® technology, we stand out in the SPR landscape by delivering precise characterization analysis for all biologics and compounds.
Kinetics measured:
Affinity (KD)
Binding rate constants (kon, koff)
Avidity
Pre-functionalization of SPR sensor chips using K-One® surface chemistry, specifically customized to your applications
Optimal ligand immobilization following Kimialys' proprietary protocol
In-house biomolecular interaction analysis with our own SPRi/SPR platforms
Reliable access to binding and kinetics data, complemented by high-quality reports and presentations, offering actionable insights
We harness both our expertise in SPRi and proprietary K-One® technology on chip to swiftly identify and rank both desired and undesired binding interactions among numerous candidates. This ensures our customers receive consistent and reliable results, accelerating their pursuit of new therapeutics.
We can immobilize any ligands:
Antibodies
Nanobodies
Small molecules
Proteins
DNA/RNA
Whole cells
Peptides
Aptamers
And more...
Our results are consistent and reliable for any complex biological matrices:
Plasma
Serum
Blood
Stem cell supernatant
Hybridoma supernatant
And more...
Reliable measurement of kinetic constants is pivotal for the development of new therapeutics. Leveraging our proprietary K-One® technology, we stand out in the SPR landscape by delivering precise characterization analysis for all biologics and compounds.
Kinetics measured:
Affinity (KD)
Binding rate constants (kon, koff)
Avidity
Pre-functionalization of SPR sensor chips using K-One® surface chemistry, specifically customized to your applications
Optimal ligand immobilization following Kimialys' proprietary protocol
In-house biomolecular interaction analysis with our own SPRi/SPR platforms
Reliable access to binding and kinetics data, complemented by high-quality reports and presentations, offering actionable insights
We harness both our expertise in SPRi and proprietary K-One® technology on chip to swiftly identify and rank both desired and undesired binding interactions among numerous candidates. This ensures our customers receive consistent and reliable results, accelerating their pursuit of new therapeutics.
We can immobilize any ligands:
Antibodies
Nanobodies
Small molecules
Proteins
DNA/RNA
Whole cells
Peptides
Aptamers
And more...
Our results are consistent and reliable for any complex biological matrices:
Plasma
Serum
Blood
Stem cell supernatant
Hybridoma supernatant
And more...
Reliable measurement of kinetic constants is pivotal for the development of new therapeutics. Leveraging our proprietary K-One® technology, we stand out in the SPR landscape by delivering precise characterization analysis for all biologics and compounds.
Kinetics measured:
Affinity (KD)
Binding rate constants (kon, koff)
Avidity
Pre-functionalization of sensor chips using K-One® surface chemistry, specifically customized to your applications and analytical platforms
Supply of batches of pre-functionalized sensor chips + ligand immobilization protocol and reagent
For companies looking to manage their own analyses, yet eager to leverage our expertise in chip functionalization and our proficiency in tackling complex analytical challenges.
We provide custom pre-functionalized sensor chips, specifically designed for your ligands, analytical platform, and applications, ensuring that your analyses run smoothly and effectively.
Gold-based sensor types:
For common SPR and SPRi platforms: Biacore, Horiba...
Other SPR-based biosensors: LSPR, Fiber Optic SPR, LR-SPR...
For chip-based diagnostic applications: electrochemical biosensors, QCM...
Our K-One® surface chemistry technology is available for licensing, offering the opportunity to integrate it within your own production environment and standards.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique.