| http://www.w3.org/ns/prov#value | - However, the cross-linking healing mechanism usually requires an external stimulus.Triggers to promote bond repair include energy inputs, such as heat or light, or specific environmental conditions, such as pH. Self-healing polymers that can spontaneously achieve quantitative healing in the absence of a catalyst have never been reported before, until now.Ibon Odriozola previously came close when h
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