Tissue prepared for electron microscopy may be embedded in tougher epoxy resins such as Araldite and cut with a diamond knife.

• 若用电子显微镜观察的组织应该选择坚硬的环氧树脂如环氧树脂黏合剂作为包埋剂进行材料的包埋处理，并用金刚刀切块。