Nu Skin Enterprises Explores NUS's Microneedle Tech for Sustainable Crop Growth Innovation

Revolutionizing Crop Growth: NUS Innovates with Dissolving Microneedle Technology

Researchers at the National University of Singapore (NUS) unveil a groundbreaking dissolving microneedle patch system that transforms how beneficial microbes are delivered to plants, particularly targeting crops like Choy Sum and Kale. This innovative approach not only enhances plant growth but also significantly reduces the reliance on traditional biofertiliser methods, showing a decrease of over 15% in biofertiliser usage. The conventional application of biofertilisers, which typically involves soil treatment, often faces challenges as the beneficial microbes contend with native soil organisms and varying environmental conditions. By administering these microbes directly into the plant tissues, the NUS team effectively overcomes these obstacles, promoting more efficient nutrient absorption and growth.

The microneedle patches, designed from biodegradable polyvinyl alcohol (PVA), measure 1 cm by 1 cm and feature a meticulously crafted array of tiny pyramids for leaf application, while thicker stems are treated with a row of 430-μm needles. Upon insertion, the patches dissolve within approximately one minute, releasing their microbial payload without causing significant disruption to the plant's overall health. This method is not only gentle on the plant tissue but also shows promising results in greenhouse tests, reflected in notable improvements in shoot biomass, leaf area, and plant height. The stability of chlorophyll levels and the rapid recovery of stress-response gene expression further support the efficacy of this delivery system.

The potential implications of this technology extend beyond mere agricultural enhancements. The NUS research, published in Advanced Functional Materials on September 13, 2025, highlights the microneedle system's applicability in urban and vertical farming settings, particularly for high-value crops that require precise nutrient management. As the agricultural sector increasingly seeks sustainable practices, this innovative method signifies a step forward in reducing environmental impact while optimizing crop production.

In addition to its agricultural benefits, the dissolving microneedle technology aligns with growing consumer demand for sustainable farming practices. By minimizing the use of chemical fertilisers, this approach caters to a market that is increasingly conscious of environmental preservation and food quality.

As the agricultural landscape continues to evolve, innovations like those from NUS stand to redefine traditional farming methodologies, paving the way for more efficient and eco-friendly practices in food production.