摘要
生物碳酸钙在自然界中普遍存在,且具有优良的力学性能,因此一直是科学家们的重要研究对象,而其结构和组成很大程度上决定了其力学性能。我们采用SEM观察了华贵栉孔扇贝韧带,同时利用FTIR和XRD分析了其化学组成。结果表明,韧带的矿化层纤维为串珠状的文石型碳酸钙,而不是前人所认为的针状或棱柱状。这一新的发现加速了人们对生物碳酸钙的认识,同时为解释扇贝韧带具有优良的力学性能提供了新的思路,为仿生合成新型材料提供了新的模型。
Biogenic calcium carbonate （CaCO3） found easily in nature has been brought into focus among researchers due to its excellent mechanical properties, which are determined by its structure and composition. Here, we investigate the microstructure and composition of ligament of Chlamys nobilis with scanning electron microscope （SEM）, fourier transform infrared spectroscopy （FTIR）, and x-ray diffraction （XRD）. To our surprise, the fibers of ligament show a beads-like shape, not the classical shape, needle-like or rod-like. This new discovery will accelerate our understanding of biogenic CaCO3 as well as may help us explain why ligaments have excellent properties. Additionally, it provides a new model for fabrication of new biomimetic materials.
出处
《广东化工》
CAS
2013年第23期22-23,18,共3页
Guangdong Chemical Industry
基金
国家自然科学基金资助项目(项目编号41262003)
