Some novel strategies to fabricate hydrogels

As one of hot research topics in polymer science, hydrogels attract increasing attentions. Following traditional preparation methods of hydrogels such as conventional chemical and physical crosslinks, some new strategies to fabricate hydrogels come forth recently. This review describes some novel hydrogels with excellent performances, which include slide-ring hydrogels, double-network hydrogels, nano-(micro-)composite hydrogels, ideal network hydrogels, self-oscillating hydrogels, non-covalently crosslinked hydrogels, and reversible covalently crosslinked hydrogels.