The formation of the skin layer agrees with the spinodal decomposition (SD) mechanism, and the thermodynamic factor plays the leading role in this process.

膜的皮层按旋节线分相机理成，主要由热力学因素决定。

Objective: To obtain the acellular matrix from tracheae of rabbits and Sprague-Dawley (SD) rats, acted as tubular scaffold for salivary gland organoid tissue engineering study.

制作脱细胞气基质，为组织工程化人工涎腺样组织的体外构建研究提供天然衍生生物架材料。

Methods The sciatic and brachial plexus nerve of three-day-old SD mice was treated with collagenase type IV and trypsin to remove the desmocyte on the Schwann cell, then explanted in the culture disk.

先用IV型胶原酶和胰蛋白酶消化出生3天的SD鼠臂层神经和坐骨神经组织块后再将组织块贴壁培养。