Abdulkareem Asma, Abusrafa Aya E, Zavahir Sifani, Habib Salma, Sobolčiak Patrik, Lehocky Marian, Pištěková Hana, Humpolíček Petr, Popelka Anton
Center for Advanced Materials, Qatar University, Doha P.O. Box 2713, Qatar.
Chemical Engineering Program, Texas A&M University at Qatar, Doha P.O. Box 23874, Qatar.
Int J Mol Sci. 2022 Mar 27;23(7):3682. doi: 10.3390/ijms23073682.
Hydrophobic fibrous slippery liquid-infused porous surfaces (SLIPS) were fabricated by electrospinning polydimethylsiloxane (PDMS) and polystyrene (PS) as a carrier polymer on plasma-treated polyethylene (PE) and polyurethane (PU) substrates. Subsequent infusion of blackseed oil (BSO) into the porous structures was applied for the preparation of the SLIPS. SLIPS with infused lubricants can act as a repellency layer and play an important role in the prevention of biofilm formation. The effect of polymer solutions used in the electrospinning process was investigated to obtain well-defined hydrophobic fibrous structures. The surface properties were analyzed through various optical, macroscopic and spectroscopic techniques. A comprehensive investigation of the surface chemistry, surface morphology/topography, and mechanical properties was carried out on selected samples at optimized conditions. The electrospun fibers prepared using a mixture of PDMS/PS in the ratio of 1:1:10 (g/g/mL) using tetrahydrofuran (THF) solvent showed the best results in terms of fiber uniformity. The subsequent infusion of BSO into the fabricated PDMS/PS fiber mats exhibited slippery behavior regarding water droplets. Moreover, prepared SLIPS exhibited antibacterial activity against and bacterium strains.
通过在等离子体处理的聚乙烯（PE）和聚氨酯（PU）基材上静电纺丝聚二甲基硅氧烷（PDMS）和聚苯乙烯（PS）作为载体聚合物，制备了疏水性纤维状的注入滑液的多孔表面（SLIPS）。随后将黑种草油（BSO）注入多孔结构中以制备SLIPS。注入润滑剂的SLIPS可作为排斥层，并在防止生物膜形成中发挥重要作用。研究了静电纺丝过程中使用的聚合物溶液的效果，以获得明确的疏水性纤维结构。通过各种光学、宏观和光谱技术分析表面性质。在优化条件下对选定样品进行了表面化学、表面形态/形貌和力学性能的综合研究。使用四氢呋喃（THF）溶剂以1:1:10（g/g/mL）的比例混合PDMS/PS制备的电纺纤维在纤维均匀性方面显示出最佳结果。随后将BSO注入制备的PDMS/PS纤维毡中，对水滴表现出滑溜行为。此外，制备的SLIPS对 和 细菌菌株表现出抗菌活性。
