Fig. 2: The architecture of LMs.

a The sketch of LM composites with a core-shell structure75. Copyright 2017, Science. b The sketch of LM-polymer composites76. Copyright 2011, John Wiley and Sons. c The schematic graphs of LM particles78. Copyright 2019, John Wiley and Sons. d The LM- microfluid83. Copyright 2014, National Academies Press. e The process of printing LMs95. Copyright 2013, Springer Nature.