ArticleMaterials today. Bio2026
NFC-enabled sensing platform for the onsite determination of asparagine in food.
Article in Materials today. Bio, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
The formation of acrylamide, a potent neurotoxin, during the cooking of common foods like potatoes, and coffee presents a significant food safety challenge. This reaction is driven by free asparagine, yet current methods for its quantification are lab-based, slow, and expensive. To address this, we developed the first fully-integrated, batteryless, and wireless point-of-need sensor for rapid detection of free asparagine. Our innovation lies in coupling a disposable, chemically-functionalized paper-based gas sensor with a Near Field Communication (NFC) integrated circuit. This architecture allows a standard smartphone to wirelessly power the sensor and receive real-time data. The device operates by detecting ammonia gas, which is released during the enzymatic degradation of asparagine. Our proof-of-concept system achieves a detection limit of 3.28 μg/mL, sufficient for quantifying asparagine in food products. By eliminating the need for external power sources or readers, this technology provides a practical and cost-effective tool to improve quality control and safety in food manufacturing.
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