Riverside Students Developed Hydrogel to Delay Fire Reignition
The middle school brothers created a 3D-printed delivery system that extends charcoal suppression time by 800%.
Updated on Oct. 10, 2026 in Chemistry
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Riverside STEM Academy students Henry and Jack Grover developed a hydrogel-based fire suppression treatment that significantly delays charcoal reignition. The research-stage project earned the twins a spot as finalists in the 2026 Thermo Fisher Scientific Junior Innovators Challenge.
Why it matters
The project addresses a critical challenge in wildfire suppression: preventing the reignition of burned areas. The students aimed to create an environmentally friendly alternative to traditional fire-retardant materials.
Testing across nine different hydrogels identified sodium polyacrylate as the optimal material, which achieves full hydration in 15 minutes. A 3D-printed sprayer, operated via garden hose, projects this material up to 18.3 metres.
The players
Henry and Jack Grover
Middle school students at Riverside STEM Academy who researched hydrogel-based fire suppression.
Thermo Fisher Scientific
A life sciences company that organizes the annual Junior Innovators Challenge to support youth STEM research.
The details
The brothers tested materials for drying rates, adhesion, and hydration capacity before settling on sodium polyacrylate—a superabsorbent polymer capable of holding large volumes of water. By applying this gel to hot charcoal, they created a heat-resistant barrier that significantly slows evaporation and oxygen flow. The 3D-printed sprayer allows for remote application, protecting firefighters by keeping them at a distance from active heat sources.
Timeline
October 23 to 28, 2026: Junior Innovators Challenge Finals Week occurs in Washington, DC.
The Tech Race
The project represents a competitive entry among 1,997 initial applicants for the 2026 Thermo Fisher Scientific Junior Innovators Challenge. The twins are now among 30 finalists vying for the $25,000 ASCEND Award.
The hydrogel application system is currently at the research and competition stage, with no commercial release date available. Once perfected, this technology could provide homeowners and local fire services with a portable method to prevent secondary flare-ups in outdoor burn areas.
The takeaway
The research demonstrates a clear performance increase in fire suppression, outperforming simple water application by 24 minutes. Readers should watch the announcement of the $25,000 ASCEND Award winners at the conclusion of Finals Week on October 28, 2026.
Further reading
For more on experimental material science, explore Chemistry.
Source note: This article includes information reported by The Times of India.
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