“…In recent years, drug delivery systems have attracted widespread attention due to their ability to deliver the correct number of drugs to the proper place [ 1 , 2 , 3 , 4 , 5 ], especially for poorly soluble drugs. More than two-thirds of promising drugs on the market have limited biomedical functions due to dissolution problems [ 6 , 7 , 8 ]. Thus, many drug delivery systems are exploited to improve the bioavailability of poorly soluble drugs, such as nanoparticles [ 9 , 10 , 11 , 12 , 13 ], hydrogels [ 14 , 15 ], 3D printing [ 16 , 17 ], electrospun fibers [ 18 , 19 , 20 , 21 ], nanocapsules [ 22 ], and microspheres [ 23 ].…”