水对骨和胶原蛋白中压电性的影响。
Effect of water on piezoelectricity in bone and collagen.
作者信息
Netto T G, Zimmerman R L
出版信息
Biophys J. 1975 Jun;15(6):573-6. doi: 10.1016/S0006-3495(75)85839-5.
Interferometric measurements of bovine bone and tendon show that the values of the piezoelectric strain constant d14 decrease with hydration from the dry values of 0.2 X 10(-14) and 2.0 X 10(-14) m/V, respectively. The decrease of piezoelectricity in tendon is exponential with a characteristic hydration of 7% by weight from which an upper limit of the average molecular weight of the responsible electric dipole moments is deduced. The piezoelectricity in bone decreases relatively slowly with hydration indicating that the electric dipoles in bone collagen are subject to a different cancelling mechanism.
对牛骨和肌腱的干涉测量表明，压电应变常数d14的值随着水化作用而降低，分别从干燥值0.2×10⁻¹⁴和2.0×10⁻¹⁴ m/V开始下降。肌腱中压电性的降低呈指数关系，其特征水化为7%（重量），由此推导出起作用的电偶极矩平均分子量的上限。骨中的压电性随着水化作用下降相对较慢，这表明骨胶原蛋白中的电偶极受到不同的抵消机制影响。
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