Fig. 9
a Overall preparation scheme of the simultaneous exfoliation and noncovalent functionalization of MoSe2 NSs with PNIL. b Image of the MoSe2 NSs immobilized hydrogel at 25 °C and 55 °C. c Image of the bending of the MoSe2 NSs immobilized hydrogel upon 808 nm irradiation for 3 min. (a–c were reproduced with permission from Ref. [61], © 2016, Wiley–VCH Verlag GmbH & Co. KGaA, Weinheim). d Schematic images of the exfoliation and modification of MoS2 NSs with chitosan and synthesis of the bilayered hydrogel composed of PNIPAAm/MoS2 NSs layer and chitosan/DMA/LAPONITE layer. e Images of the response of the MoS2 NSs immobilized hydrogel under 808 nm NIR irradiation (5 W/cm2) for 70 s. (d, e were reproduced with permission from Ref. [62], © 2016, The Royal Society of Chemistry)