School of Science and Technology, SIM University, 599491, Singapore.
J Biomed Nanotechnol. 2010 Dec;6(6):718-24. doi: 10.1166/jbn.2010.1170.
This paper explores the comparative advantage of auxetic membranes over non-auxetic ones by geometrical analysis. It is herein demonstrated that, unlike non-auxetic sieves, the auxetic sieve exhibits an almost linear correlation with the applied strain, thereby demonstrating the higher tunability of auxetic sieves. Further investigation on the performance of auxetic sieves by varying the initial inclination angle shows that the sieving sensitivity is inversely proportional to the initial inclination angle. Finally a calculation based on (1,4)-reflexyne as a molecular auxetic sieve reveals that such as filter can block out impurities of sub-nanoscale size, while enabling the transport of biochemicals. The obtained results suggest the use of auxetic molecular sieves as high performance bandage, filters and other devices that require ultra-clean environment with biochemical permeability.
本文通过几何分析探讨了超弹性膜相对于非超弹性膜的比较优势。本文证明，与非超弹性筛网不同，超弹性筛网与所施加的应变之间几乎呈线性相关，从而表明超弹性筛网具有更高的可调性。通过改变初始倾斜角进一步研究超弹性筛网的性能，表明筛分灵敏度与初始倾斜角成反比。最后，基于（1,4）-反射晶体作为分子超弹性筛网的计算表明，这种过滤器可以阻挡亚纳米尺寸的杂质，同时允许生化物质的传输。所得结果表明，超弹性分子筛可用作高性能绷带、过滤器和其他需要具有生化渗透性的超净环境的装置。
