Terahertz SpectroscopyInjectionsMembranesCell MembraneMembrane LipidsIntracellular MembranesMembrane PotentialsMembranes, ArtificialInjections, IntravenousInjections, IntramuscularInjections, IntralesionalErythrocyte MembraneInjections, SubcutaneousMembrane FluidityInjections, Intra-ArticularCell Membrane PermeabilityBasement MembraneInjections, IntraperitonealInjections, IntradermalInjections, IntraventricularTime FactorsInjections, EpiduralInjections, Intra-ArterialMembrane Transport ProteinsMembrane GlycoproteinsIntravitreal InjectionsInjections, SpinalRats, Sprague-DawleyMicroscopy, Electron