Figure 2From: Characterization and applications of Nanobodies against human procalcitonin selected from a novel naïve Nanobody phage display libraryConstruction of the naïve library. (A)The VHH genes were obtained by two steps PCR. (B) The library size was measured by counting the colonies number after serial dilution. (C) 24 colonies were randomly picked to estimate the correct insertion rate of VHH genes by PCR amplification.Back to article page