ALIGNMENT OF NANOMATERIALS IN HYDROGELS BY USING STANDING SURFACE ACOUSTIC WAVE-ENABLE

被引：0

作者：

Li, Jiali ^{[1
]}

Bo, Luyu ^{[1
]}

Li, Teng ^{[1
]}

Tian, Zhenhua ^{[2
]}

机构：

[1] Mississippi State Univ, Dept Aerosp Engn, Mississippi State, MS 39759 USA

[2] Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA

来源：

PROCEEDINGS OF ASME 2022 INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, IMECE2022, VOL 1 | 2022年

基金：

美国国家科学基金会;

关键词：

interdigital transducers; surface acoustic waves; nanomaterial patterning; acoustic tweezers; acoustofluidics; MANIPULATION;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Particle manipulation and patterning have gained tremendous attention in chemical, biomedical, and manufacturing studies. Hydrogels are usually used for applications in soft robots, biosensing, as well as tissue engineering. In this study, we investigated a nanoparticle manipulation method based on standing surface acoustic waves (SAWs). The SAW device consists of a piezoelectric lithium niobate (LiNbO3) substrate with a pair of interdigital transducers (IDTs). Finite element simulations were performed to understand the mechanisms of the SAW device as well as reveal the acoustic pressure field and electric potential field generated by the device. In addition to numerical studies, proof-of-concept experiments were performed by using a fabricated SAW device for patterning both silicon dioxide (SiO2) nanoparticles and multi-walled carbon nanotubes (MWCNTs) in a hydrogel solution.

引用

页数：4

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