PTK7 and lung carcinoma: Besides, the Sgc‐8 aptamer that can specifically recognize protein tyrosine kinase 7 (PTK7)[42] is modified on GIANs’ surface via π–π interaction to obtain Sgc‐8 functionalized GIANs, Hela cells with high PTK‐7 expression and 95‐C lung cancer cells with low PTK‐7 expression has been finally distinguished, proving GIANs have excellent cellular targeted imaging capabilities (Figure 4A).