TY - JOUR AU - Garrido-Maestu, Alejandro AU - Azinheiro, Sarah AU - Carvalho, Joana AU - Abalde-Cela, Sara AU - Carbó-Argibay, Enrique AU - Diéguez, Lorena AU - Piotrowski, Marek AU - Kolen’ko, Yury V. AU - Prado, Marta PY - 2017 M3 - Original Research TI - Combination of Microfluidic Loop-Mediated Isothermal Amplification with Gold Nanoparticles for Rapid Detection of Salmonella spp. in Food Samples JO - Frontiers in Microbiology UR - https://www.frontiersin.org/articles/10.3389/fmicb.2017.02159 VL - 8 SN - 1664-302X N2 - Foodborne diseases are an important cause of morbidity and mortality. According to the World Health Organization, there are 31 main global hazards, which caused in 2010 600 million foodborne illnesses and 420000 deaths. Among them, Salmonella spp. is one of the most important human pathogens, accounting for more than 90000 cases in Europe and even more in the United States per year. In the current study we report the development, and thorough evaluation in food samples, of a microfluidic system combining loop-mediated isothermal amplification with gold nanoparticles (AuNPs). This system is intended for low-cost, in situ, detection of different pathogens, as the proposed methodology can be extrapolated to different microorganisms. A very low limit of detection (10 cfu/25 g) was obtained. Furthermore, the evaluation of spiked food samples (chicken, turkey, egg products), completely matched the expected results, as denoted by the index kappa of concordance (value of 1.00). The results obtained for the relative sensitivity, specificity and accuracy were of 100% as well as the positive and negative predictive values. ER -