Functional Surface Chemistry for Microfluidics, Diagnostics & Life Sciences

At BioNexus, surface coatings are often at the core of your device’s function. Whether you need passivation to eliminate background noise or prevent adhesion, or active surfaces for capturing specific biomolecules, our coating services help bring your microfluidic or bioscience application to life.

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Just Launched: BNX Store

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Types of Customized Coatings We Offer

Silane 2D layer Coatings
2D coatings on glass or plastic, including aminosilane, acrylosilane, azidosilane, and more.

Polymer Passivation / Non-fouling Coatings
Block non-specific binding and reduce background signal using inert polymers such PEG or polyoxazoline

Polymer Biofunctional Coatings
Combine inert with functional polymers to create surface chemistries for stable attachment of antibodies, oligonucleotides, enzymes, or capture ligands with flexible attachment strategies from click chemistry to biotin

3D & Microstructured Patterned Coatings (Coming Soon)
Creation of of channels, microwells, and complex geometries — not just flat surfaces.

Hydrophobic / Hydrophilic Treatments
2D and 3D coatings that control surface energy for your application.

Custom Chemistry Development
Tailored surface strategies for DNA, Protein, Nanoparticle, or Biomolecular assays, cell compatibility, or electrochemical integration.

Bead Immobilization in Flowcells and Microplates
Immobilization of coated beads on glass and plastic surfaces at high densities

Custom Bead Coatings
Process development for coating microbeads with surface chemistries such as Amine, Carboxy, PEG, DNA, Proteins, and beyond.

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Standard Surface Chemistry Processes

Our surface science team excels at both 2D and 3D surface modification, enabling low non-specific binding and/or stable biofunctionalization — directly integrated into your prototype or final part.

• Liquid Phase Bath Chemistry for scalable deposition of 2D and 3D coatings
• Oxygen/Argon/Water Plasma for rapid surface cleaning and activation
• Chemical Vapor Deposition (coming soon) for ultra uniform high quality silane coatings
• Reactive Ion Etching (coming soon) for nanostructuring of polymers and glass
• UV/Ozone Cleaning & Activation (coming soon) for cleaning and hydroxylation of surfaces
• Spin Coating for precision application of thin films
• Vacuum Ovens for precision sample drying
• ISO5 Cleanroom to prevent surface contamination
• Robotic Liquid Handling for speed and precision
• Contact Angle and Fluorescence Microscopy Metrology of Surfaces to characterize performance and quality
• See our Full Capabilities List here.