Extended release sodium percarbonate tablets for long-lasting antimicrobial cleaning

Overview

Sodium percarbonate is a solid-phase source of hydrogen peroxide, a well-documented broad-spectrum antimicrobial. However, once dissolved in water, it degrades within hours, making it impractical for routine consumer and industrial cleaning. This solution addresses that limitation through a proprietary, environmentally benign polymer formulation that controls the release of oxidant from pressed tablets. The result is a stable, on-demand cleaning product with a projected shelf life of weeks to months, suitable for both consumer and environmental remediation applications.

Technical specifications

• Controlled release polymer matrix: A proprietary, environmentally benign polymer formulation enables tunable oxidant release kinetics across a wide range of timescales.
• Tablet form factor: Sodium percarbonate is pressed into tablets for ease of handling, dosing, and deployment.
• Tunable release kinetics: Release duration can be adjusted by polymer selection and process modifications to suit different use cases.
• Antimicrobial mechanism: Tablets release hydrogen peroxide into water on submersion, providing broad-spectrum antimicrobial activity through a reactive oxidative species well established in innate immune defense.
• Environmental profile: Designed with a preference for degradable, environmentally benign polymer constituents to support green cleaning and remediation applications.

Technology readiness level

The formulation has been produced at manufacture scale, and the ability to tune oxidant release kinetics has been demonstrated. Ongoing validation work includes screening additional degradable polymers and refining process parameters to extend release duration. Antimicrobial efficacy will be tested by submerging tablets in water and evaluating the supernatant using ASTM E2274 at timepoints ranging from one hour to one month, providing standardized evidence of long-duration antimicrobial performance.