Spatial regulation of hydrogel polymerization reaction using ultrasound-driven streaming vortex

IF 8.7 1区 化学 Q1 ACOUSTICS Ultrasonics Sonochemistry Pub Date : 2024-09-04 DOI:10.1016/j.ultsonch.2024.107053
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Abstract

Ultrasound is gaining attention as an alternative tool to regulate chemical processes due to its advantages such as high cost-effectiveness, rapid response, and contact-free operation. Previous studies have demonstrated that acoustic bubble cavitation can generate energy to synthesize functional materials. In this study, we introduce a method to control the spatial distribution of physical and chemical properties of hydrogels by using an ultrasound-mediated particle manipulation technique. We developed a surface acoustic wave device that can localize micro-hydrogel particles, which are formed during gelation, in a hydrogel solution. The hydrogel fabricated with the application of surface acoustic waves exhibited gradients in mechanical, mass transport, and structural properties. We demonstrated that the gel having the property gradients could be utilized as a cell-culture substrate dictating cellular shapes, which is beneficial for interfacial tissue engineering. The acoustic method and fabricated hydrogels with property gradients can be applied to design flexible polymeric materials for soft robotics, biomedical sensors, or bioelectronics applications.

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利用超声波驱动流涡对水凝胶聚合反应进行空间调控
由于超声波具有成本效益高、反应迅速和非接触式操作等优点,它作为调节化学过程的替代工具正日益受到关注。以往的研究表明,声波气泡空化可以产生能量来合成功能材料。在本研究中,我们介绍了一种利用超声波介导的粒子操纵技术控制水凝胶物理和化学特性空间分布的方法。我们开发了一种表面声波装置,可将凝胶化过程中形成的微型水凝胶颗粒定位在水凝胶溶液中。应用表面声波制造的水凝胶在机械、质量传输和结构特性方面表现出梯度。我们证明,具有这种特性梯度的凝胶可用作细胞培养基质,决定细胞的形状,这对界面组织工程学是有益的。声学方法和制造的具有性能梯度的水凝胶可用于设计软机器人、生物医学传感器或生物电子学应用的柔性聚合物材料。
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来源期刊
Ultrasonics Sonochemistry
Ultrasonics Sonochemistry 化学-化学综合
CiteScore
15.80
自引率
11.90%
发文量
361
审稿时长
59 days
期刊介绍: Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels. Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.
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