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3D shape change of multi-responsive hydrogels based on a light-programmed gradient in volume phase transition†
Chemical Communications ( IF 4.9 ) Pub Date : 2018-09-06 00:00:00 , DOI: 10.1039/c8cc06515b
Zhen Jiang 1, 2, 3, 4, 5 , Ronny Javier Pibaque Sanchez 1, 2, 3, 4, 5 , Idriss Blakey 1, 2, 3, 4, 6 , Andrew K. Whittaker 1, 2, 3, 4, 5
Affiliation  

We present a new multi-responsive hydrogel based on oligo(ethylene glycol) methacrylate (OEGMA) and incorporating the photosensitive monomer 4-acetoxystyrene (AOST). Light irradiation creates a gradient in the volume phase transition temperature (VPTT) across the hydrogel, resulting in stimuli-responsive 3D deformations, with a largest achievable bending angle of 354°. The gradient hydrogels exhibited controllable, reversible and repeatable 3D deformations driven by changes in temperature or ionic strength. Multiple complex shape changes were achieved through patterned illumination.

中文翻译:

基于体积相变中光编程梯度的多响应水凝胶的3D形状变化

我们提出了一种基于低聚(乙二醇)甲基丙烯酸甲酯(OEGMA)并结合了光敏单体4-乙酰氧基苯乙烯(AOST)的新型多响应水凝胶。光线照射会在水凝胶上的体积相变温度(VPTT)中产生一个梯度,从而导致刺激响应3D变形,最大可实现的弯曲角度为354°。梯度水凝胶表现出受温度或离子强度变化驱动的可控,可逆和可重复的3D变形。通过图案照明实现了多种复杂的形状变化。
更新日期:2018-09-06
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