TY - CONF A1 - Climent Terol, Estela A1 - Biyikal, Mustafa A1 - Gröninger, Delia A1 - Weller, Michael G. A1 - Martínez-Máñez, Ramón A1 - Rurack, Knut T1 - Fluorescence-based multiplexed detection on single test strips with antibody-gated mesoporous materials N2 - Rapid testing methods for the use directly at a point-of-need are expected to unfold their true potential especially when offering adequate capabilities for the simultaneous measurement of multiple analytes of interest. However, the implementation of multiplexing features while retaining simplicity, performance and portability is one of the prominent challenges in the field. Keeping in mind these challenges, we decided to combine the use of stimuli-responsive materials for small-molecule sensing relying on chemical signal amplification and their incorporation on paper strips for lateral-flow assays in a straightforward manner. Considering the modularity, high sensitivity and selectivity of antibody-gated indicator delivery systems, a multiplexed assay for three small-molecule explosives TATP, TNT and PETN was developed, allowing to detect the analytes simultaneously with a single test strip at lower ppb concentrations in liquid phase in <5 min, using a fluorescence reader or a smartphone for readout. Because of the versatility of the hybrid material and the modularity of the assay architecture, it is obvious that this generic approach should be easily transferable to food or environmental analysis, point-of-care diagnostics and other areas of application in which the rapid screening for multiple parameters from liquid samples without clean-up in a dedicated laboratory is in demand. T2 - 2021 On-line Symposium on Bioluminiscence, Chemiluminiscence and luminescence spectrometry ISLS-ISBC CY - Online meeting DA - 24.06.2021 KW - Multiplexing KW - Hybrid materials KW - Signal amplification KW - Test Strip analysis KW - Explosives PY - 2021 AN - OPUS4-52889 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -