Figure 3From: Evaluation of Epic® label-free technology to quantify functional recombinant hemagglutinin Response measured after addition of increasing concentrations of rHA increases with time. rHA of B/BR/08 was added to wells containing immobilized fetuin and change in wavelength read at 2 min intervals over a 30 min time period. The greatest difference in response to different rHA concentrations was observed at 30 min.Back to article page