Fig. 1From: Reconfigurable flexible metasurfaces: from fundamentals towards biomedical applicationsSchematic diagram of metamaterials and metasurfaces from the negative refraction theory to their applications (Stretchable absorber, e-skins, immunoassay, bioimaging, cancer detection, metalens and cloaking) [6, 19, 26, 99,100,101,102,103,104]. Copyright 2004, Taylor & Francis. Copyright 2020, John Wiley and Sons. Copyright 2015, Springer Nature. Copyright 2015, John Wiley and Sons. Copyright 2017, Springer Nature. Copyright 2021, De Gruyter. Copyright American Chemical Society, 2016. Copyright 2021, Optica Publishing Group. Copyright 2020, MDPIBack to article page