Table 1.

Enrichment of FGFR1 binding phages for each panning round

Round of selection	FGFR1 (μg·mL−1)	Concentration of Tween‐20 (v/v)	Elution	Input phage (PFU)	Output phage (PFU)	Recovery (%)
1	100	0.1	0.2 m glycine pH 2.2	2 × 1011	1 × 107	5 × 10−3
2	70	0.3	0.2 m glycine pH 2.2	2 × 1011	12 × 107	6 × 10−2
3	50	0.5	0.2 m glycine pH 2.2/FGF1	2 × 1011	14 × 105/8 × 104	7 × 10−4/4 × 10−5