“…5 From these viewpoints, the development of watersolubilizing techniques is urgently required for hydrophobic compounds to accelerate drug discovery by expanding and opening the bioavailability of lead compounds. 8 To improve the water solubility of hydrophobic compounds, several approaches have been employed such as conjugation with hydrophilic moieties, 9 pH adjustment, 10,11 cosolvency, 10,12 the use of surfactant, 13,14 and encapsulation. 9,15-17 Among these approaches, complexation with biocompatible molecules such as phospholipids 18 and polysaccharides 9,16,17 is a robust strategy because this approach does not require conjugation techniques, which can cause unfavorable side effects in patients.…”