School of Chemistry and Materials Science, Ludong University, Yantai 264025, China; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Yantai 264025, China; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
School of Chemistry and Materials Science, Ludong University, Yantai 264025, China; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Yantai 264025, China; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
Colloids Surf B Biointerfaces. 2022 Aug;216:112554. doi: 10.1016/j.colsurfb.2022.112554. Epub 2022 May 12.
Janus bio-nanomaterials have great application potential in functional solid surfactants, probes and flexible sensors. In this manuscript, the sustainable Janus cellulose nanocrystals-type (CNCs-type) nanomaterials were prepared by Pickering emulsion template method. The asymmetric functionalism of Janus nanorods was realized by asymmetrically grafting polypyrrole (PPy) and polydopamine (PDA) onto different sides of CNCs (Janus CNCs-PPy /PDA (JCNs)). JCNs was successfully applied to self-healing nanocomposite hydrogels and further applied to the development of flexible sensors. The self-healing efficiency of nanocomposite hydrogels was 87.2%, and the stress and strain reached 3.50 MPa and 453.45%, respectively. It is worth noting that flexible sensors have been widely used in the field of wearable electronic sensing for real-time monitoring of human movement due to their high sensitivity (gauge factor (GF) = 9.9) and fast response time (260 ms).
Janus 生物纳米材料在功能性固体表面活性剂、探针和柔性传感器方面具有巨大的应用潜力。在本手稿中，通过 Pickering 乳液模板法制备了可持续的 Janus 纤维素纳米晶型 (CNCs 型) 纳米材料。通过不对称接枝聚吡咯 (PPy) 和聚多巴胺 (PDA) 到 CNCs (Janus CNCs-PPy/PDA (JCNs)) 的不同侧，实现了 Janus 纳米棒的不对称功能性。JCNs 成功应用于自修复纳米复合水凝胶，并进一步应用于柔性传感器的开发。纳米复合水凝胶的自修复效率为 87.2%，应力和应变分别达到 3.50 MPa 和 453.45%。值得注意的是，由于具有高灵敏度 (应变系数 (GF) = 9.9) 和快速响应时间 (260 ms)，柔性传感器已广泛应用于可穿戴电子传感领域，用于实时监测人体运动。
