Super-Elastic Phenylalanine Dipeptide Crystal Fibers Enable Monolithic Stretchable Piezoelectrics for Wearable and Implantable Bioelectronics

IF 17.2 1区工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Fiber Materials Pub Date : 2024-10-11 DOI:10.1007/s42765-024-00490-w

Juan Ma, Lili Qian, Fei Jin, Weiying Zheng, Tong Li, Zhidong Wei, Ting Wang, Zhang-Qi Feng

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引用次数: 0

Abstract

With the advancement of flexible bioelectronics, developing highly elastic and breathable piezoelectric materials and devices that achieve conformal deformation, synchronous electromechanical coupling with the human body and high-fidelity collection of biological information remains a significant challenge. Here, a nanoconfinement self-assembly strategy is developed to prepare elastic phenylalanine dipeptide (FF) crystal fibers, in which FF crystals form a unique Mortise-Tenon structure with oriented styrene-block-butadiene-block-styrene molecular beams and thereby obtain elasticity (≈1200%), flexibility (Young’s modulus: 0.409 ± 0.031 MPa), piezoelectricity (macroscopic d₃₃: 10.025 ± 0.33 pC N⁻¹), breathability, and physical stability. Furthermore, elastic FF crystal fibers are used to develop a flexible human physiological movement sensing system by integrating Ga–In alloy coating and wireless electronic transmission components. The system can undergo conformal deformation with human skin and achieve high-fidelity capture of biological information originating from human body motions to prevent diseases (such as Parkinson’s disease). In addition, this system also displays superior sensitivity and accuracy in detecting subtle pressure changes in vivo during heartbeats, respiration, and diaphragm movement. Therefore, elastic FF crystal fibers hold great potential for developing new flexible electromechanical sensors that are capable of conformal deformation with the human body, enabling precision medical diagnosis and efficient energy harvesting.

Graphical Abstract

A schematic illustration depicting the utilization of styrene-block-butadiene-block-styrene (SBS) fibers as a self-assembly nanoconfinement carrier for phenylalanine dipeptide (FF) has been provided, showcasing the formation mechanism of elastic FF crystal fibers featuring a distinctive Mortise-Tenon structure.

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来源期刊

Advanced Fiber Materials Multiple-

CiteScore

18.70

自引率

11.20%

发文量

109

期刊介绍： Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.