TY - JOUR TI - Preparation and Characterization of Poly(2-oxazoline) Micelles for the Solubilization and Delivery of Water Insoluble Drugs AU - Vinod, Natasha AU - Hwang, Duhyeong AU - Azam, Salma H. AU - Van Swearingen, Amanda E. D. AU - Wayne, Elizabeth AU - Fussell, Sloane Christian AU - Sokolsky-Papkov, Marina AU - Pecot, Chad V. AU - Kabanov, Alexander V. VL - 11 IS - 6 PY - 2021 DA - 2021/03/20 SP - e3959 C1 - Bio-protocol 2021;11:e3959 DO - 10.21769/BioProtoc.3959 UR - https://doi.org/10.21769/BioProtoc.3959 AB - Many new drug development candidates are highly lipophilic compounds with low water solubility. This constitutes a formidable challenge for the use of such compounds for cancer therapy, where high doses and intravenous injections are needed (Di et al., 2012). Here, we present a poly(2-oxazoline) polymer (POx)-based nanoformulation strategy to solubilize and deliver hydrophobic drugs. POx micelles are prepared by a simple thin-film hydration method. In this method, the drug and polymer are dissolved in a common solvent and allowed to mix, following which the solvent is evaporated using mild heating conditions to form a thin film. The micelles form spontaneously upon hydration with saline. POx nanoformulation of hydrophobic drugs is unique in that it has a high drug loading capacity, which is superior to micelles of conventional surfactants. Moreover, multiple active pharmaceutical ingredients (APIs) can be included within the same POx micelle, thereby enabling the codelivery of binary as well as ternary drug combinations (Han et al., 2012; He et al., 2016). KW - Lipophilic KW - Poly(2-oxazoline) KW - Nanoformulation KW - Surfactants KW - Active pharmaceutical ingredients KW - Polymeric micelles JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False