miR-122 direct detection in human serum by time-gated fluorescence imaging García Fernández, Emilio González García, María del Carmen Pernagallo, Salvatore Ruedas-Rama, Maria Jose Fara, Mario Antonio López Delgado, Francisco Javier W. Dear, James Ilyine, Hugh Ress, Cristina Díaz Mochón, Juan José Orte Gutiérrez, Ángel A simple method for direct detection of microRNAs (miRs) in human serum without the use of polymerase amplification is presented, achieving low miR-122 concentrations and importantly, discerning effectively single-base sequence mutations. The method is based on the capture of target miRs with synthetic peptide nucleic acid oligomers, dynamic chemical labelling, separation with quaternary amine microplatforms and detection using time-gated fluorescence imaging. 2024-12-12T12:39:56Z 2024-12-12T12:39:56Z 2019-11-27 journal article García Fernández, E. et. al. Chem. Commun., 2019, 55, 14958. [https://doi.org/10.1039/C9CC08069D] https://hdl.handle.net/10481/97955 10.1039/C9CC08069D eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Royal Society of Chemistry