Prolonged Morphometric Study of Barnacles Grown on Soft Substrata of Hydrogels and Elastmers
Prolonged Morphometric Study of Barnacles Grown on Soft Substrata of Hydrogels and Elastmers
复制标题
水凝胶和弹性体软基质上生长的藤壶的长期形态测量研究
DOI：
10.1080/08927014.2013.863280
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发表时间：
2014
期刊：
影响因子：
2.7
通讯作者：
Jian Ping Gong
中科院分区：
文献类型：
--
作者：
Nafees Ahmed;Takayuki Murosaki;Takayuki Kurokawa;Akira Kakugo;Shintaro Yashima;Yasuyuki Nogata;Jian Ping Gong
在实验室环境中，对生长在坚韧的双网络（DN）水凝胶和聚二甲基硅氧烷（PDMS）弹性体上的藤壶的壳形状和基底形态进行了长期研究。这些软基底的弹性模量在0.01和0.47 MPa之间变化。聚苯乙烯（PS）（弹性模量，3GPa）用作硬基底对照。结果发现，藤壶的外壳形状和基板形态的刚性PS相比，PDMS和DN水凝胶的软基板上的不同。PS基质上的藤壶呈截锥形，基板平坦，而软PDMS和DN凝胶上的藤壶呈假圆柱形，基板呈弯曲状。此外，在PDMS上的藤壶下观察到大的粘附层，但在DN凝胶上没有。底层刚度的影响进行了讨论，在藤壶肌肉收缩，其中的相对刚度相比，肌肉的底层被认为是关键参数。
A long-term investigation of the shell shape and the basal morphology of barnacles grown on tough, double-network (DN) hydrogels and polydimethylsiloxane (PDMS) elastomer was conducted in a laboratory environment. The elastic modulus of these soft substrata varied between 0.01 and 0.47 MPa. Polystyrene (PS) (elastic modulus, 3 GPa) was used as a hard substratum control. It was found that the shell shape and the basal plate morphology of barnacles were different on the rigid PS substratum compared to the soft substrata of PDMS and DN hydrogels. Barnacles on the PS substratum had a truncated cone shape with a flat basal plate while on soft PDMS and DN gels, barnacles had a pseudo-cylindrical shape and their basal plates showed curvature. In addition, a large adhesive layer was observed under barnacles on PDMS, but not on DN gels. The effect of substratum stiffness is discussed in terms of barnacle muscle contraction, whereby the relative stiffness of the substratum compared to that of the muscle is considered as the key parameter.