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Abstract— <p>This paper presents an integrated study into the acoustic properties of hierarchical 3D-printed metamaterials made of polylactide, which have been developed for utilization in tissue engineering applications. A numerical finite element modeling was carried out to study the propagation of ultrasonic waves in the 1–9 MHz range through lattice structures shaped as octahedrons, honeycombs, or diamonds. The influence of geometric topology and effective physical parameters (Young’s modulus, density, sound velocity) on acoustic pressure distribution is discussed. It is shown that the studied types of triple periodic structures with minimal surface area demonstrate unique patterns for the localization and scattering of ultrasonic field energy. This finding opens up opportunities for using such structures as scaffolds or in controlled drug release with diagnostic function. The findings enable the prediction of the interaction between porous lattice metamaterials and ultrasound and the optimization of their application in dynamics using noninvasive ultrasound diagnostics.</p>

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3D Printed Hierarchical Lattice Metamaterials: Integration of Mechanical Strength and Ultrasonic Sensitivity for Biomedical Applications

  • 期刊论文

  • 发表日期：

    2025年12月18日

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  • I. V. Shishkovsky

摘要

Abstract—

This paper presents an integrated study into the acoustic properties of hierarchical 3D-printed metamaterials made of polylactide, which have been developed for utilization in tissue engineering applications. A numerical finite element modeling was carried out to study the propagation of ultrasonic waves in the 1–9 MHz range through lattice structures shaped as octahedrons, honeycombs, or diamonds. The influence of geometric topology and effective physical parameters (Young’s modulus, density, sound velocity) on acoustic pressure distribution is discussed. It is shown that the studied types of triple periodic structures with minimal surface area demonstrate unique patterns for the localization and scattering of ultrasonic field energy. This finding opens up opportunities for using such structures as scaffolds or in controlled drug release with diagnostic function. The findings enable the prediction of the interaction between porous lattice metamaterials and ultrasound and the optimization of their application in dynamics using noninvasive ultrasound diagnostics.