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miR-122 direct detection in human serum by time-gated fluorescence imaging
Emilio Garcia-Fernandez1, M Carmen Gonzalez-Garcia1, Salvatore Pernagallo2
1Departamento de Fisicoquimica. Unidad de Excelencia de Química aplicada a Biomedicina y Medioambiente, Facultad de Farmacia, Universidad de Granada, Campus de Cartuja s/n, 18071-Granada, Spain. angelort@ugr.es.
Abstract:
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.
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