Photonic crystal based immunosensor for clinical diagnosis

The progress in medical field has provided fast remedies for the most of diseases affecting today´s society. Now, the next step is to propose a fast way of diagnosis, avoiding long waiting time and expensive laboratory assays. Thanks to the recent research findings and progress in nano-technological fabrication techniques, new biosensors have been developed with the purpose to introduce portable and user-friendly instruments for medical analysis aimed to improve life quality and lower healthcare costs. In this work, we propose a proof-of-concept of an immunosensor based on a two-dimensional silicon nitride photonic crystal membrane able to efficiently detect the concentration of Interleukin-6 in a buffer solution.