Fig. 1. (a) Chemical structure of the photocleavable linker in the PARC. (b) IEC analysis of αPD-L1, PARC, or PARC irradiated with 365 nm light (10 mW cm⁻²) for 5 min. (c) Normalized fluorescence of PD-L1-positive or -negative HCT116 cells treated with αPD-L1 or PARC (0–1000 nM) and a fluorescent secondary antibody. (d) siPD-L1 release profiles of PARC irradiated with 365 nm light (10 mW cm⁻²) for 1–6 min. (e) SDS-PAGE analysis of αPD-L1 and PARC without or with irradiation with 365 nm light (10 mW cm⁻²) for 5 min. Data are shown as mean ± SD (n = 3).