Application of MOF Nanoenzyme in Rapid Detection of Food Allergens System

Abstract

Food allergies are a common immune response that can lead to serious health problems. Rapid and accurate detection of allergens in food is crucial for protecting people’s health and quality of life. In this study, β-lactoglobulin in milk serves as a model allergen, and nucleic acid aptamer-loaded MN patches are utilized as rapid capture elements. Moreover, metal organic frameworks loaded with complementary aptamer sequences are employed as signal amplification elements. The combination of these two elements establishes a rapid visualization detection system for allergens, employing specific microneedle array patches-MOF nanoenzymes. The results show that the combination of TMB+H2O2 +MOF-RC has the highest peroxidase like activity of 1.732. Compared to TMB+H2O2 +MOF, it has increased by 0.547. Meanwhile, the MN-MOF detection method has excellent specificity for the detection of β-Lg. This specific microneedle array patches and MOF nanoenzymes-based allergen rapid detection system demonstrates practical application benefits, providing a viable solution for swiftly detecting food allergens and safeguarding people’s health and quality of life.