Photothermal Modulation of Human Stem Cells Using Light-responsive 2D Nanomaterials

Two-dimensional (2D) molybdenum disulfide (MoS2) nanomaterials are an emerging class of biomaterials that are photo-responsive at near-infrared wavelengths (NIR). Here, we demonstrate for the first time the ability of 2D MoS2 to modulate cellular functions of human stem cells through photothermal mechanisms. The interaction of MoS2 with human stem cells is investigated using whole transcriptome sequencing (RNA-seq). Global gene expression profile of stem cells reveals significant influence by NIR stimulation of MoS2 on integrins, cellular migration and wound healing. Overall, the combination of MoS2 and NIR light may provide new approach to control and regulate cellular migration and functions. Examination of effect of MoS2 and NIR on human mesenchymal stem cells (hMSCs)