Dual-functional polymeric system combining shape memory with self-healing properties has attracted increasingly interests of researchers, as both of these properties are intelligent and promising characteristics. Moreover, shape memory polymer that functions at human body temperature (37 °C) are desirable because of their potential applications in biomedical field. Herein, we designed a polymer network with a permanent covalent crosslinking and abundant weak hydrogen bonds. The former introduces elasticity responsible and maintain the permanent shape, and the latter contributes to the temporary shape via network rearrangement. The obtained PDMS-COO-E polymer films exhibit excellent mechanical properties and the capability to efficiently self-heal for 6 h at room temperature. Furthermore, the samples turn from a viscous state into an elastic state at 37 °C. Therefore, this polymer has shape memory effects triggered by body temperature. This unique material will have a wide range of applications in many fields, containing wearable electronics, biomedical devices, and 4D printing.

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Thermosetting polymers enjoy outstanding static performance at the expense of poor reprocessability and recyclability. The design of covalent adaptable networks (CANs) provides a possible solution, but most of them show...

Pneumatic-powered actuators are receiving increasing attention due to their widespread applications. However, their inherent low stiffness makes them incompetent in tasks requiring high load capacity or high force output. On...

Flexible sensors based on ionogel show great potential in wearable devices because of their compliance and deformability. However, ionogel sensors usually suffer from low mechanical properties and poor sensitivity. Herein,...

Stiff polymers exhibiting good reprocessing and self-healing ability under a moderate stimulus are often desirable for many special applications, but also full of challenges, which come from how to achieve...

Aim To investigate paediatric surgical nurses' knowledge, attitudes and practices (KAP) regarding enhanced recovery after surgery (ERAS). Design A cross‐sectional study. Methods A 34‐question survey was developed. An electronic version of the questionnaire was distributed to nurses working in paediatric surgical departments of 22 tertiary hospitals from 14 provinces of China by means of convenience sampling from February to April 2021. A total of 855 nurses' data was used as the final sample. The statistical analysis included nonparametric test, Spearman′s correlation and multiple linear regression. Results There is still room for improvement regarding the KAP of paediatric surgical nurses, especially in the knowledge of “postoperative recovery” and “preoperative preparation”. The influencing factors of KAP were educational level, geographical region (South, Central, North, Northwest), years of work experience, hospital category (general hospital, women and children′s hospital), and familiarity with ERAS.