Arik Nehir, Horzum Nesrin, Truong Yen Bach
Department of Biocomposite Engineering Graduate Program, Izmir Katip Celebi University, Izmir 35620, Turkey.
Department of Engineering Sciences, Izmir Katip Celebi University, Izmir 35620, Turkey.
Membranes (Basel). 2022 Feb 10;12(2):209. doi: 10.3390/membranes12020209.
We report the fabrication of bio-based thermoplastic polyurethane (TPU) fibrous scaffolds containing essential oils (EO). The main goal of this study was to investigate the effects of essential oil type (St. John's Wort oil (SJWO), lavender oil (LO), and virgin olive oil (OO))/concentration on the electrospinnability of TPU. The effects of applied voltage, flow rate, and end-tip distance on the diameter, morphology, and wettability of the TPU/EO electrospun fibers were investigated. The electrospun TPU/EO scaffolds were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle (CA), and Fourier transform infrared spectroscopy (FTIR). The addition of oil resulted in an increase in the fiber diameter, reduction in the surface roughness, and, accordingly, a reduction in the contact angle of the composite fibers. TPU fibers containing SJWO and LO have a more flexible structure compared to the fibers containing OO. This comparative study fills the existing information gap and shows the benefits of the fabrication of essential-oil-incorporated electrospun fiber with morphology and size range with respect to the desired applications, which are mostly wound dressing and food packaging.
我们报道了含精油（EO）的生物基热塑性聚氨酯（TPU）纤维支架的制备。本研究的主要目标是研究精油类型（圣约翰草油（SJWO）、薰衣草油（LO）和初榨橄榄油（OO））/浓度对TPU电纺性能的影响。研究了施加电压、流速和末端距离对TPU/EO电纺纤维的直径、形态和润湿性的影响。通过扫描电子显微镜（SEM）、原子力显微镜（AFM）、接触角（CA）和傅里叶变换红外光谱（FTIR）对电纺TPU/EO支架进行了表征。添加油导致纤维直径增加、表面粗糙度降低，相应地，复合纤维的接触角减小。与含OO的纤维相比，含SJWO和LO的TPU纤维具有更灵活的结构。这项比较研究填补了现有信息空白，并展示了制备具有形态和尺寸范围的含精油电纺纤维在大多数伤口敷料和食品包装等预期应用方面的优势。
