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A clean kitchen surface glowing with a protective, light-activated antimicrobial layer
Food, Personal & Home Care

Photocatalytic Disinfection

Identifying and testing photocatalytic ingredients and delivery formats for a top home-care brand to create chemical-light, self-disinfecting surfaces for consumer use.

Client

Top-5 Home-Care Brand

Objective

Shortlist Consumer-Friendly Formats

Timeline

10-Week Program

Key Focus

Visible-Light Activation & Durability

The Challenge: Hurdles for Consumer Adoption

Photocatalytic materials offer a "spray-and-shine" alternative to traditional cleaners, but moving from industrial applications to everyday household products requires overcoming four key hurdles.

Visible-Light Activation: Coatings must be potent under normal indoor lighting (LEDs, window light), not just UV.
Wear & Tear: Coatings on high-touch surfaces like kitchen counters must remain bonded and active for over a year of daily scrubbing.
Safety & Residue: Nanoparticles must not flake off, stain surfaces, or damage sensitive materials like plastics.
Cost & Ease of Use: Consumers expect affordable (<$0.30/m²), one-step application without special equipment.

Key Outcomes: Five Lead Consumer Formats

Our analysis delivered a shortlist of five consumer-friendly formats that met stringent efficacy, durability, and safety targets.

Nitrogen-doped TiO₂ Spray

A clear-coat spray with a bio-based binder achieving 2-log virus kill in 5 minutes.

Graphitic Carbon-Nitride Wipe

Leaves a sub-micron film that retains 90% activity after 5,000 scrub cycles.

Bismuth-Oxide Adhesive Film

A peel-and-stick film for high-touch buttons that self-sterilizes under office lighting.

Ag-TiO₂ UV-Cured Varnish

A commercial-grade coating for countertops.

Spray-and-Rinse Pretreatment

Leaves an invisible photocatalytic silica layer on bathroom tiles.

Strategic Impact

The home-care brand selected the Nitrogen-TiO₂ spray and carbon-nitride wipe for scale-up. With a clear regulatory path, pilot production is slated for Q2 2026, positioning the company to launch a new category of light-activated, chemical-light disinfectants that work between conventional cleanings.