Poly(oligoethylene glycol methylether methacrylate-co-methyl methacrylate) Aggregates as Nanocarriers for Curcumin and Quercetin
Abstract
Amphiphilic statistical copolymers can be utilized for the formulation of nanocarriers for the drug delivery of insoluble substances. Oligoethylene glycol methylether methacrylate and methyl methacrylate are two biocompatible monomers that can be used for biological applications. In this work, the synthesis of linear poly(oligoethylene glycol methylether methacrylate-co-methyl methacrylate), P(OEGMA-co-MMA), and statistical copolymers via reversible addition fragmentation chain transfer (RAFT) polymerization is reported. P(OEGMA-co-MMA) copolymers with different comonomer compositions were synthesized and characterized by size exclusion chromatography (SEC), 1H-NMR, and ATR-FTIR spectroscopy. Self-assembly studies were carried out by the dissolution of polymers in water and via the co-solvent protocol. For the characterization of the formed nanoaggregates, DLS, zeta potential, and fluorescence spectroscopy (FS) experiments were performed. Such measurements delineate the association of copolymers into aggregates with structural characteristics dependent on copolymer composition. In order to investigate the drug encapsulation properties of the formed nanoparticles, curcumin and quercetin were loaded into them. The co-solvent protocol was followed for the encapsulation of varying concentrations of the two drugs. Nanocarrier formulation properties were confirmed by DLS while UV–Vis and FS experiments revealed the encapsulation loading and the optical properties of the…
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