https://scholars.lib.ntu.edu.tw/handle/123456789/467584
標題: | Synthesis of water-based cationic polyurethane for antibacterial and gene delivery applications | 作者: | Wu, G.-H. Hsu, S.-H. SHAN-HUI HSU |
關鍵字: | Antibacterial; Gene delivery; Nanoparticle; Polyurethane; Transfection; Waterborne | 公開日期: | 2016 | 卷: | 146 | 起(迄)頁: | 825-832 | 來源出版物: | Colloids and Surfaces B: Biointerfaces | 摘要: | Cationic polymers are often used as antimicrobial materials and transfection reagents. Water-based process could reduce environmental pollution and prevent the risk of solvent residue in the final product. In this study, waterborne biodegradable cationic polyurethane (WCPU) was synthesized by reacting polycaprolactone (PCL diol), isophorone diisocyanate (IPDI), and N-methyldiethanolamine (N-MDEA) under 75°C. An aqueous dispersion of WCPU nanoparticles (NPs) could be acquired by vigorous stirring under acidic condition. The particles in the dispersion had an average size of ∼80 nm and a zeta potential of ∼60 mV. When cast into films, the contact angle of the film was ∼67° and the zeta potential was ∼16 mV. WCPU NPs demonstrated excellent antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) (100% inhibition with a contact time of 3 h). Meanwhile, the antibacterial ratio of WCPU films to E. coli and S. aureus reached 100% after 24 h of contact. Moreover, WCPU NPs could be used as a transfection reagent without significant toxicity for concentrations less than 1000 μg/mL and showed the ability to condensate plasmid DNA. The transfection efficiency for HEK293T cells and hBMSCs was ∼60% and ∼30% at 48 h, respectively, after the transfection. Therefore, the WCPU synthesized in this study has potential antibacterial and gene delivery applications. © 2016 Elsevier B.V. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/467584 | DOI: | 10.1016/j.colsurfb.2016.07.011 | SDG/關鍵字: | Bacteria; Dispersions; Escherichia coli; Gene transfer; Genes; Molecular biology; Nanoparticles; Polycaprolactone; Polyurethanes; Zeta potential; Antibacterial; Antimicrobial materials; Environmental pollutions; Escherichia coli (E. coli); Gene Delivery; Isophorone diisocyanate; Transfection; Waterborne; Water pollution; antiinfective agent; cation; cyanic acid derivative; ethanolamine derivative; isophorone diisocyanate; n methyldiethanolamine; nanoparticle; plasmid DNA; polycaprolactone; polyurethan; reagent; unclassified drug; water; water based cationic polyurethane; antiinfective agent; cation; polyester; polymer; polyurethan; water; acidity; antibacterial activity; aqueous solution; Article; biodegradability; chemical procedures; chemical reaction; contact angle; controlled study; dispersion; drug delivery system; Escherichia coli; film; gene delivery system; genetic transfection; HEK293 cell line; HEK293T cell; hematopoietic stem cell; human; human cell; nonhuman; particle size; priority journal; Staphylococcus aureus; synthesis; toxic concentration; zeta potential; administration and dosage; cell survival; chemistry; drug effects; gene transfer; plasmid; Anti-Bacterial Agents; Cations; Cell Survival; Escherichia coli; Gene Transfer Techniques; HEK293 Cells; Humans; Plasmids; Polyesters; Polymers; Polyurethanes; Staphylococcus aureus; Water |
顯示於: | 高分子科學與工程學研究所 |
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