含蛋白石微图案的生物聚合物负载的刺激响应共凝胶的快速蒸发-冲压技术。

IF 8.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Subhash Kalidindi, Alec K. Zackin, Mossab K. Alsaedi, Atul Sharma, Wenxin Zeng, Rachel E. Owyeung, Hyemin Kang, Sameer Sonkusale, Matthew J. Panzer and Hyunmin Yi*, 
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引用次数: 0

摘要

生物聚合物支持的深度共晶溶剂(DES)基凝胶,也被称为共聚凝胶,已经成为水凝胶和离子液体基凝胶的有前途的替代品,用于可拉伸电子和传感器的多种应用,因为它们具有许多关键优势,包括高离子电导率、拉伸韧性、易于处理、简单合成、低成本、生物相容性和超低挥发性。特别是,明胶负载的1,2-丙二醇(PD)基含水共凝胶由于其水凝胶的性质而显示出前景。它们具有低模量值和生物友好成分,使其成为“皮肤”材料。它们是光学透明的,这使它们成为理想的用户友好的视觉设备。将颜色可调的微图案蛋白石结构结合到这些新型明胶支持的共凝胶中,可以通过简单的颜色变化制备用户友好,机械弹性和刺激响应的材料,用于许多应用。在这项工作中,我们利用一种简单而强大的蒸发沉积-冲压技术来制备含有蛋白石微图案的共凝胶,以克服现有制造技术的局限性,如光刻和软光刻,这些技术受到昂贵的设备,苛刻的自由基聚合,多步骤加工和/或依赖外力的影响。首先,通过简单的蒸发沉积形成均匀且颜色可调的蛋白石微图案。扫描电子显微镜(SEM)图像显示,在整个蛋白石微图案中形成了均匀的六边形堆积。接下来,通过简单的手工压印技术,将蛋白石微图案成功地转移到明胶支撑的PD共凝胶中,形成具有均匀蛋白石微图案的蛋白石共凝胶,因为共凝胶具有粘性和机械弹性,而不需要昂贵的设备。照片和暗场光学显微照片,结合波长光谱测量,说明了我们简单的蒸发冲压方法的可靠性。最后,通过简单地在顶部添加二级共析层,可以生产出完全封装蛋白石微图案的三明治共析凝胶,从而对机械刺激产生可逆的光学响应。我们设想这种简单、可靠、坚固的蒸发冲压技术可以很容易地扩展到制造生物相容性和用户友好的视觉监测设备。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Facile Evaporation-Stamping Technique for Stimuli-Responsive Biopolymer-Supported Eutectogels Containing Opal Micropatterns

Facile Evaporation-Stamping Technique for Stimuli-Responsive Biopolymer-Supported Eutectogels Containing Opal Micropatterns

Biopolymer-supported deep eutectic solvent (DES)-based gels, also known as eutectogels, have emerged as promising alternatives to hydrogels and ionic-liquid-based gels for multiple applications in stretchable electronics and sensors due to many key advantages including their high ionic conductivity, tensile toughness, easy handling, simple synthesis, low cost, biocompatibility, and ultralow volatility. Particularly, gelatin-supported 1,2-propanediol (PD)-based eutectogels containing water have shown promise due to their hydrogel-like properties. They have low modulus values and biofriendly components, making them “skin-like” materials. They are optically transparent, which makes them ideal as user-friendly visual devices. Incorporation of color-tunable micropatterned opal structures into these novel gelatin-supported eutectogels enables the preparation of user-friendly, mechanically resilient, and stimuli-responsive materials for many applications via a simple color change. In this work, we utilize a simple and robust evaporative deposition-stamping technique to prepare eutectogels containing opal micropatterns to overcome limitations in existing fabrication techniques such as photolithography and soft lithography that suffer from costly equipment, harsh radical polymerization, and multistep processing and/or reliance on external forces. First, uniform and color-tunable opal micropatterns are formed via simple evaporative deposition. Scanning electron microscopy (SEM) images show the formation of a uniform hexagonal packing throughout the opal micropatterns. Next, the opal micropatterns are successfully transferred into gelatin-supported PD eutectogels via a simple hand-stamping technique to form opal eutectogels having uniform opal micropatterns due to the eutectogels’ adhesive and mechanically resilient nature without the need for costly equipment. Photographs and dark-field optical micrographs, in combination with wavelength spectra measurements, illustrate the reliable nature of our simple evaporation-stamping method. Finally, sandwich eutectogels that fully encapsulate the opal micropatterns were produced by simply adding a secondary eutectogel layer to the top, yielding a reversible optical response to mechanical stimuli. We envision that this simple, reliable, and robust evaporation–stamping technique can be readily extended to manufacture biocompatible and user-friendly visual monitoring devices.

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来源期刊
ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces 工程技术-材料科学:综合
CiteScore
16.00
自引率
6.30%
发文量
4978
审稿时长
1.8 months
期刊介绍: ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.
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