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The authors describe a competitive aptamer based assay for detection of the platelet-derived growth factor BB (PDGF-BB; used as a model protein). The assay is making use of thrombin (a serine protease) as an enzyme label for reporting signals. It is taking advantage of a highly selective aptamer and of the fairly specific enzymatic activity of thrombin in terms of cleaving artificial fluorogenic peptide...
The luminescence behaviors of Cu(II) meso-tetrakis (4-N-methyl-pyridiniumyl) porphyrin (Cu(II)TMPyP) and Co(II) meso-tetrakis (4-N-methyl-pyridiniumyl) porphyrin (Co(II)TMPyP) are investigated, and their interactions with calf thymus DNA (ctDNA) are studied by UV–vis, fluorescence and resonance light scattering (RLS) and based on the changes of UV–vis spectra, fluorescence and RLS spectra, the intrinsic...
The fluorescence and solid substrate room temperature phosphorescence (SS-RTP) properties of Pd(II) meso-tetrakis (4-N-methyl-pyridiniumyl) porphyrin (Pd(II)TMPyP) were studied. The factors influencing the SS-RTP emission, such as filter type, inorganic salt sort, drying temperature, pre-drying time and drying time were investigated in detail. Strong SS-RTP signal can be induced on the slow speed...
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