X-ray microscopy of articular cartilage: non-stained vs 16hr-PTA-stained

X-ray microscopy of a same bovine articular cartilage is enhanced by 16 hours of phosphotungstic acid (PTA) staining, showing cartilage collagen network, chondrocytes and tidemark, while the 0 hr non-stained x-ray microscopy could not resolve these features within articular cartilage.对同一牛关节软骨样本进行16小时磷钨酸（phosphotungstic acid, PTA）染色后，其X射线显微成像效果得到显著增强，可清晰展现软骨胶原网络、软骨细胞与潮线结构；而未经染色的0小时对照组的X射线显微成像，则无法分辨关节软骨内部的上述特征。