Effective transport properties of two biocompatible nanofibrous membranes—gelatin and chitosan—were evaluated using the gas transport measurement. The assessments involve the counter-current diffusion carried out both in Graham's and Wicke-Kallenbach cells under isothermal steady-state conditions. Additionally, the isothermal quasi-stationary gas permeation was also performed in modified Wicke-Kallenbach cell. It was found that the obtained transport characteristics reflect the gas transport mechanism which takes place predominantly in the continuum regime due to the prevailing macroporosity of the electrospun nanofibrous membranes. The gas permeation transport characteristics were evaluated from permeation cell measurements carried out at low pressures. The actual transport mechanism corresponded to the Knudsen flow dominating over continuous flow. The accuracy of the transport characteristics was estimated as the 95% confidence regions. It was confirmed that the confidence region shape of the optimized transport characteristics was intimately connected with the prevailing mass transport mechanism.

使用气体传输测量评估了两种生物相容性纳米纤维膜（明胶和壳聚糖）的有效传输特性。评估涉及在等温稳态条件下在Graham和Wicke-Kallenbach电池中进行的逆流扩散。此外，在改良的Wicke-Kallenbach池中也进行了等温准静态气体渗透。已经发现，由于电纺纳米纤维膜的普遍的大孔隙率，所获得的传输特性反映了主要在连续状态下发生的气体传输机理。通过在低压下进行的渗透池测量来评估气体渗透传输特性。实际的传输机制对应于在连续流上占主导地位的克努森流。估计运输特性的准确性为95％置信区。可以确定的是，优化的传输特性的置信区域形状与普遍的质量传输机制密切相关。