Liu Shuming, Ge Chunhua, Li Zhiqiang, Chen Keke, Li Xuefeng, Peng Chengyao, Zhang Xiangdong
College of Chemistry, Liaoning University, 66 Chongshan Middle Road, Huanggu District, Shenyang, Liaoning 110036, P.R. China.
Institute of Functional Organic Materials, Liaoning University, 66 Chongshan Middle Road, Huanggu District, Shenyang, Liaoning 110036, P.R. China.
ACS Appl Mater Interfaces. 2025 Jul 23;17(29):41806-41815. doi: 10.1021/acsami.5c09260. Epub 2025 Jul 11.
Efficient passive cooling technologies hold significant potential for applications in heat transfer, thermal conductivity, and energy concentration in high-power devices. However, common high-thermal-conductivity materials often suffer from poor biocompatibility and lack biodegradability, limiting their use in body surface cooling and wearable devices. Consequently, developing thermally conductive materials through green synthesis while ensuring biocompatibility and biodegradability has become a major challenge in body surface cooling. In this study, boron nitride particles modified with carbon quantum dots (CDs@BNOH) were synthesized as high thermal conductivity composite fillers, which were then incorporated into a potentially biocompatible silk fibroin hydrogel patch. The CDs@BNOH/SilMA patch exhibits a good and stable recyclable thermal conductivity of 0.77 W m K, with a 15.38% increase in the overall thermal conductivity due to the modification with carbon quantum dots. Additionally, under simulated direct sunlight, the CDs@BNOH/SilMA patch demonstrated exceptional body surface cooling performance, reducing the temperature by 6.6 °C compared to the control group. This hydro patch not only exhibited potential biocompatibility and biodegradability but also demonstrated promising potential in body surface cooling applications.
高效的被动冷却技术在高功率设备的热传递、热导率和能量集中应用方面具有巨大潜力。然而，常见的高导热材料往往生物相容性差且缺乏生物降解性，限制了它们在体表冷却和可穿戴设备中的应用。因此，在确保生物相容性和生物降解性的同时，通过绿色合成开发导热材料已成为体表冷却领域的一项重大挑战。在本研究中，合成了用碳量子点修饰的氮化硼颗粒（CDs@BNOH）作为高导热复合填料，然后将其掺入具有潜在生物相容性的丝素蛋白水凝胶贴片中。CDs@BNOH/SilMA贴片表现出良好且稳定的可回收热导率，为0.77W m K，由于用碳量子点进行了修饰，整体热导率提高了15.38%。此外，在模拟直射阳光下，CDs@BNOH/SilMA贴片表现出卓越的体表冷却性能，与对照组相比温度降低了6.6°C。这种水凝胶贴片不仅具有潜在的生物相容性和生物降解性，而且在体表冷却应用中也显示出广阔的前景。
