Cell culture Chemical activation Dermal fibroblasts Dermal wound healing Extracellular matrix deposition Fibroblasts Fibrose GaAs-based circuits Homoeostasis Normal function Oxidative stress PI3K/Akt pathways PI3K/akt pathway Porous se@SiO2 nanoparticle Scar formation SiO2 nanoparticles Silica nanoparticles Silicon Synthesis (chemical) Tissue regeneration Wound healing acoustic metasurfaces bandpass filters fibrosis half-mode substrate-integrated waveguide low reflection low-frequency sound insulation millimeter wave devices nano plastic particles on-chip devices