ALB and neoplasm: have reported using Mφs to carry gold nanorods (AuNRs) coated with DOX‐loaded serum albumin into the tumor (Figure 5a).[50] AuNRs with a length of 56.4 ± 3.5 and width of 11.9 ± 1.8 nm were covered with an even, dense layer of albumin to inhibit drug release before Mφs could home into the tumor site.