Lipid nanoparticles for wound healing

Lipid nanoparticle comprising at least one solid lipid at room temperature, at least one non-ionic surfactant, at least one liquid lipid at room temperature, and a growth factor,

• wherein the growth factor is epidermal growth factor (EGF);
• wherein the solid lipid at room temperature is selected from the group consisting of glyceryl palmitostearate, glyceryl monostearate, glyceryl behenate, and mixtures thereof;
• wherein the liquid lipid at room temperature is selected from the group consisting of mixture of triglyceride of caprylic acid and capric acid, soybean oil, isopropyl myristate, castor oil, and mixtures thereof;
• and
• wherein the non-ionic surfactant is selected from the group consisting of sorbitan esters, polyethoxylated sorbitan esters, polyethylene-polypropylene glycol, and mixtures thereof.