Time-Resolved Fluorescence (TRF) is an advanced optical detection technology that uses Lanthanide chelates (like Europium) to eliminate background autofluorescence. Unlike traditional fluorescent dyes (e.g., FAM) with nanosecond lifetimes, TRF offers microsecond emission, increasing the signal-to-noise ratio in POCT devices by over 100 times.
In 2026, TRF is becoming the gold standard for rapid diagnostic tests (RDT) because it allows point-of-care testing (POCT) manufacturers to dramatically reduce the cost of optical reading modules. By replacing expensive bandpass filters with time-gated measurement systems, manufacturers can build highly sensitive, lab-quality diagnostic devices for a fraction of the cost.