{"title":"Cellulose enhanced highly sensitive and durable dual-network ionogel sensor for human motion monitoring","authors":"Ailing Xu, Qingning Xia, Yunjie Ju, Yonggui Wang, Zefang Xiao, Haigang Wang, Yanjun Xie","doi":"10.1016/j.cej.2024.156608","DOIUrl":null,"url":null,"abstract":"Conductive gels are crucial in developing today’s flexible wearable technologies and have attracted widespread attention. However, achieving a harmonious balance among mechanical, sensing performance, and other functions still poses a significant challenge. This study designed an ionic liquid/poly (N, N-dimethylacrylamide-methacrylic acid-acrylamide)/cellulose (BPC) ionogel ternary system. The BPC ionogels exhibited excellent adhesion (47.18 kPa), self-healing capabilities, electrical conductivity, and mechanical properties including tensile strength (0.48 MPa), and elongation at break (899.69 %). In addition, the BPC ionogels have been proven suitable for making highly sensitive strain and temperature sensors, which could accurately identify human joint bending dynamics and facial micro-expression changes. It was characterized by fast response speed (140 ms), high sensitivity (strain sensitivity: 3.95–11.82, temperature sensitivity: 4.25 %/℃), and excellent cycle stability. When the BPC ionogel was customized into a capacitive pen, it could achieve smooth and delicate drawing operations on a smart touch screen. In summary, the BPC ionogels designed in this study demonstrate great potential in wearable electronic devices and human–computer interaction.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":null,"pages":null},"PeriodicalIF":13.3000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.cej.2024.156608","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Conductive gels are crucial in developing today’s flexible wearable technologies and have attracted widespread attention. However, achieving a harmonious balance among mechanical, sensing performance, and other functions still poses a significant challenge. This study designed an ionic liquid/poly (N, N-dimethylacrylamide-methacrylic acid-acrylamide)/cellulose (BPC) ionogel ternary system. The BPC ionogels exhibited excellent adhesion (47.18 kPa), self-healing capabilities, electrical conductivity, and mechanical properties including tensile strength (0.48 MPa), and elongation at break (899.69 %). In addition, the BPC ionogels have been proven suitable for making highly sensitive strain and temperature sensors, which could accurately identify human joint bending dynamics and facial micro-expression changes. It was characterized by fast response speed (140 ms), high sensitivity (strain sensitivity: 3.95–11.82, temperature sensitivity: 4.25 %/℃), and excellent cycle stability. When the BPC ionogel was customized into a capacitive pen, it could achieve smooth and delicate drawing operations on a smart touch screen. In summary, the BPC ionogels designed in this study demonstrate great potential in wearable electronic devices and human–computer interaction.
期刊介绍:
The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.