Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1., Szeged, H-6720, Hungary.
Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., Szeged, H-6720, Hungary.
Soft Matter. 2020 Sep 23;16(36):8325-8329. doi: 10.1039/d0sm01397h.
Organic chemical gardens of chitosan hydrogel develop upon injecting an acidic chitosan solution into an alkaline solution. Besides complex and budding structures, tubular hydrogel formations develop that exhibit periodic surface patterns. The underlying wrinkling instability is identified by its characteristic wavelength dependence on the diameter of the elastic material formed. The flow-driven conditions allow precise control over the structure that can help the design of soft bio-inspired materials. Our findings can also suggest a new direction in the field of chemobrionics.
壳聚糖水凝胶的有机化学花园是通过将酸性壳聚糖溶液注入碱性溶液中而形成的。除了复杂和萌芽的结构外，还会形成管状水凝胶，其具有周期性的表面图案。通过其对形成的弹性材料直径的特征波长依赖性，可以确定起皱不稳定性。流动驱动的条件可以精确控制结构，有助于设计软仿生材料。我们的发现也可以为化学生物电子学领域提供新的方向。
