Protein nanoparticles directed cancer imaging and therapy

Nano Convergence

Table 1 Summary and comparison of protein nanoparticles (PNs)

Types of PNs	Classification	Characteristics	Refs.
Virus-like particles	Animal viruses, plant viruses and phages	Highly immunogenic, hollow structure	[35, 50]
Albumin	OVA, BSA, HSA	Long-time circulation, diverse hydrophobic binding sites	[59, 65]
Silk proteins	Silk fibroin and sericin	Certain mechanical strength, electronegative, pH-responsive drug release	[69, 73, 76]
Collagen	More than 30 types	The most abundant protein	[77]
Ferritin	heavy (H) and light (L)	pH-dependent self-assembly, thermostable, imaging	[83, 84, 90]