Nanoparticle collectors & functionalized glass slides

We deposit plasma-based Teflon-like coatings on glass slides, forming ultra-thin, conformal layers that reduce surface energy and provide controlled wettability, with water contact angles up to 110°, while maintaining optical transparency and uniformity.

These surfaces reduce nonspecific adsorption and sample spreading, improving reliability in cell culture, diagnostic assays, and biosensing applications.

Using dedicated masking techniques, we can also create selective hydrophobic domains on the glass surface, enabling spatially controlled surface functionality where required.

We engineer plasma-based silica-like coatings on glass slides, creating thin, homogeneous layers that enhance surface energy and deliver strong hydrophilic behavior, while preserving optical clarity and smoothness.

These coatings enable uniform liquid spreading and improved surface interaction, making them ideal for biological assays, diagnostics, and microscopy sample preparation. They are also well suited for surface functionalization, sensor development, and microarray technologies, where controlled wettability and reactivity are essential.

We develop silicone-like coatings via plasma technology that create smooth, low-energy surfaces with tunable wettability. These coatings provide a balanced interaction with liquids, avoiding both excessive spreading and strong repellence, while fully preserving the optical properties of the glass.

This makes them particularly useful in applications requiring controlled fluid behavior, such as biological assays, sample handling, and analytical workflows. Their stable and chemically inert nature also supports use in sensor platforms and surface modification strategies.

Selective patterning is achievable through masking, allowing the definition of functional areas with tailored surface properties directly on the slide.

Glass slides can be functionalized with amine-like surfaces generated by plasma processes, introducing reactive –NH₂ groups directly onto the glass. This modification transforms an inert substrate into a chemically active interface, also providing a slight positive surface charge under appropriate conditions.

Such surfaces are particularly suited for applications requiring strong and stable biomolecule attachment, including DNA and protein immobilization, biochips, and diagnostic platforms. The presence of amine groups further enables subsequent chemical coupling reactions and tailored surface functionalization.

Selective masking allows the creation of well-defined reactive regions, enabling precise spatial control of functional areas across the glass slide.

Glass microscope slides can be modified with plasma-generated polycarboxylic acid–like coatings, introducing carboxyl (–COOH) functionalities onto the surface. This treatment yields a hydrophilic and chemically active interface, typically exhibiting a slight negative surface charge under relevant conditions.

Such surfaces are well suited for applications involving electrostatic interactions and biomolecule binding, including protein adsorption control, diagnostic platforms, and bioanalytical assays. The presence of carboxyl groups also enables further chemical coupling, supporting advanced surface functionalization strategies.

Patterned functionalization can be achieved via masking, allowing the creation of spatially defined regions with tailored surface chemistry on the substrate.

Using plasma deposition, PEO-like (polyethylene oxide–like) coatings can be applied to glass microscope slides, forming ultra-thin, highly uniform layers that are chemically inert and strongly hydrophilic. These surfaces are specifically designed to suppress nonspecific adsorption of proteins and biomolecules, providing excellent anti-fouling performance. For this reason, they are widely used in biosensing platforms, diagnostic assays, and lab-on-a-chip systems, where minimizing background interaction is critical for accuracy and signal reliability.

The coating also ensures stable wetting behavior and compatibility with aqueous environments, making it suitable for advanced biomedical and analytical applications. Through masking approaches, it is possible to define non-fouling regions selectively on the glass surface, enabling spatial control of biological interactions.