Yifan Cui,Guolin Zheng,Zhe Jiang,Man Zhou,Ping Wang,Yuanyuan Yu,Qiang Wang
Bioenzyme-catalyzed conductive polymer polymerization is an ecological and environmental protection method that aligns with the current sustainable development plan. Hence, a new strategy of in situ assembly of poly (3,4-ethylenedioxythiophene) (PEDOT) on the surface of fabrics via free radical polymerization initiated by the cascade reaction of glucose oxidase (GOx) and horseradish peroxidase (HRP) was introduced. With excellent photothermal conversion capability and sensitive humidity response, PEDOT endows the fabric with remarkable photothermal performance, humidity sensing performance, and UV resistance capability. It is worth noting that the PEDOT-coated fabric can reach a fantastic 54.2 °C within 20 s under 2 sun irradiation intensity and finally reach 98.4 °C. In addition, it can maintain stable and fast responses in repeated and long-term operations. Moreover, the PEDOT-coated fabric has a fast response and long-term working ability in high humidity. This work provides a new environmental protection and sustainability idea for designing and developing conductive polymer-based high-performance composites.
Yang Pang,Zhichuang Qi,Liangliang Cui,Zhangmi Huang,Chunyan Hu,Zhijia Zhu,Baojiang Liu
Photonic crystal hydrogels (PCHs) are innovative materials that translate imperceptible deformations and humidity changes into visible colors, broadening the applications of photonics in bioengineering and smart materials. To overcome poor mechanical properties of traditional PCHs limited by weak intermolecular forces, we designed a PCH with a dual-network framework comprising N-isopropylacrylamide-co-acrylamide (NIPAM-co-AM) and biomass lotus root starch (LR). Since LR is rich in hydroxyl groups, it can undergo molecular linkage entanglement with the NIPAM-co-AM hydrogel matrix, forming hydrogen bonds that significantly enhance the mechanical properties of the PCH. We have prepared PCH films capable of conveying multidimensional information about the extent and distribution of transient deformation by encapsulating magnetic photonic crystal microspheres (MPCMs) within a hydrogel matrix. The PCH films were found to have ultrafast response time (< 10 s), full-color tunable range, high spatial resolution, excellent mechanical toughness (tensile up to 0.17 MPa) and sensitivity (2.52 nm % −1 ), and were able to sense relative humidity (RH) from 11 % to 98 %. Equipped with a dynamically reconfigurable lattice, this dual-responsive (tensile/humidity) PCH not only facilitates the creation of water-rewritable photonic films but also holds promise for integration into structural color elastic fabrics, thereby presenting novel prospects for smart textile applications.
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