Wang Jun, Li Xiaopeng, Zou Yuanwen, Sheng Yong
Appl Opt. 2019 May 1;58(13):3481-3489. doi: 10.1364/AO.58.003481.
In the fields of tissue engineering, drug delivery, and filtering material, electrospun ultrafine fibers with micropores have important applications. A scanning electron microscope (SEM) is typically used to observe the microstructure of ultrafine fibers, but SEM has disadvantages, such as small field of vision, high cost, and ionization damage. Given this, 16 (4×4) full transmission Mueller matrices of electrospun fibers with three different morphologies, i.e., smooth surface, microporous, and beaded microspheres, were obtained. We find that the Mueller matrix element M is most sensitive to the micropores on fibers. In the M transformed image proposed in this paper, the different morphologies and contours of fibers can be clearly shown, providing a low-cost method for mass, nondestructive, and rapid morphology detection of fibers.
在组织工程、药物递送和过滤材料领域，具有微孔的电纺超细纤维有着重要应用。扫描电子显微镜（SEM）通常用于观察超细纤维的微观结构，但SEM存在视野小、成本高和电离损伤等缺点。鉴于此，获得了具有三种不同形态（即光滑表面、微孔和珠状微球）的电纺纤维的16（4×4）全透射穆勒矩阵。我们发现穆勒矩阵元素M对纤维上的微孔最为敏感。在本文提出的M变换图像中，可以清晰地显示纤维的不同形态和轮廓，为纤维的大规模、无损和快速形态检测提供了一种低成本方法。
