Department of Engineering, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, PA, Italy.
Department of Agricultural, Food and Forestry Sciences, University of Palermo, Viale delle Scienze, Ed. 5, 90128 Palermo, PA, Italy.
Molecules. 2023 Feb 19;28(4):1967. doi: 10.3390/molecules28041967.
Nanofibrous membranes are often the core components used to produce devices for a controlled release and are frequently prepared by electrospinning (ES). However, ES requires high production times and costs and is not easy to scale. Recently, solution blow spinning (SBS) has been proposed as an alternative technique for the production of nanofibrous membranes. In this study, a comparison between these two techniques is proposed. Poly (lactic acid)-based nanofibrous membranes were produced by electrospinning (ES) and solution blow spinning (SBS) in order to evaluate the different effect of liquid (carvacrol, CRV) or solid (chlorhexidine, CHX) molecules addition on the morphology, structural properties, and release behavior. The outcomes revealed that both ES and SBS nanofibrous mat allowed for obtaining a controlled release up to 500 h. In detail, the lower wettability of the SBS system allowed for slowing down the CRV release kinetics, compared to the one obtained for ES membranes. On the contrary, with SBS, a faster CHX release can be obtained due to its more hydrophilic behavior. Further, the addition of graphene nanoplatelets (GNP) led to a decrease in wettability and allowed for a slowing down of the release kinetics in the whole of the systems.
纳米纤维膜通常是用于制备控制释放装置的核心组件,其通常通过静电纺丝(ES)来制备。然而,ES 生产时间长,成本高,且不易扩大规模。最近,溶液吹纺(SBS)已被提议作为生产纳米纤维膜的替代技术。在本研究中,提出了这两种技术的比较。通过静电纺丝(ES)和溶液吹纺(SBS)制备了基于聚乳酸的纳米纤维膜,以评估液体(香芹酚,CRV)或固体(洗必泰,CHX)分子添加对形态、结构性能和释放行为的不同影响。结果表明,ES 和 SBS 纳米纤维垫都可以实现长达 500 小时的控制释放。具体而言,与 ES 膜相比,SBS 体系的低润湿性允许减缓 CRV 的释放动力学。相反,由于 SBS 更亲水的性质,可以更快地释放 CHX。此外,添加石墨烯纳米片(GNP)会降低润湿性,并允许整个体系的释放动力学减缓。
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