Abstract
It's currently a challenge to design a drug delivery system for chemotherapy with high drug contents and minimal side effects. Herein, we constructed a novel one-dimensional binary-drug delivery system for cancer treatment. In this drug delivery system, drugs (doxorubicin (DOX) and resveratrol (RES)) self-assemble on bacterial cellulose nano-whiskers (BCW) and are subsequently encapsulated by polydopamine (PDA) with high encapsulation efficiencies (DOX: 81.53 %, RES: 70.32 %) and high drug loading efficiencies (DOX: 51.54 %, RES: 36.93 %). The cumulative release efficiencies can reach 89.27 % for DOX and 80.05 % for RES in acidic medium within 96 h. The BCW/(DOX + RES)/PDA can enter tumor cells easily through endocytosis and presents significant anti-cancer effects. Furthermore, the released-RES plays a protective role in normal cells through up-regulation of antioxidant enzymes activities and scavenging of reactive oxygen species. Taken together, the one-dimensional BCW/(DOX + RES)/PDA binary-drug delivery system can be used for the anticancer treatment along with slight side effects.
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