Table 2.

Potential photocaged bio-orthogonal reactive groups for use in dynamic materials.

Photocaged Group	Reactive Group	Uncaging Treatment	Bio-orthogonal Reaction	References
		UV light (350 nm)	SPAAC	[129]
		UV Light (405 nm)	Staudinger ligation	[130]
		UV light (302 nm)	1,3-Dipolar Cycloaddition	[82]
		UV light (300 nm)	Hetero-DA	[89]
		Red light (660 nm + methylene blue)	IED-DA	[131, 132]