Synthesis and characterization of hybrid copper–chitosan nano-antimicrobials by femtosecond laser-ablation in liquids
作者： A. Ancona , M.C. Sportelli , A. Trapani , R.A. Picca , C. Palazzo
DOI: 10.1016/J.MATLET.2014.08.083
关键词:
摘要: In this work, the unique capability of femtosecond laser pulses to finely fragment via ablation a Cu solid target immersed into CS-HAc solutions was exploited in order obtain homogeneously dispersed colloid Cu-CS nanocomposites with different Cu/CS molar ratios according initial chitosan concentration. Using these hybrid nanocolloids as solvents, well-dispersed nanocomposite polymer films were produced after spin-coating on glass substrates. Both colloids and coatings characterized by several techniques, including UV-Vis, FTIR, DLS, TEM XPS aiming analyse surface bulk chemical composition well morphology novel nanocomposite. The antimicrobial properties proposed nanomaterial, which intention combines bioactivity both components, have been assessed biological experiments using selected microorganism strains samples from hospitalized dermatology patients.
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