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Solar Energy Storage Silks via Coaxial Wet Spinning
ACS Materials Letters ( IF 9.6 ) Pub Date : 2020-06-04 , DOI: 10.1021/acsmaterialslett.0c00074 Pui Fai Ng 1 , Jiachuan Hua 1 , Chang Liu 1 , Yidi Wang 1 , Rong Yin 1 , Bin Fei 1
ACS Materials Letters ( IF 9.6 ) Pub Date : 2020-06-04 , DOI: 10.1021/acsmaterialslett.0c00074 Pui Fai Ng 1 , Jiachuan Hua 1 , Chang Liu 1 , Yidi Wang 1 , Rong Yin 1 , Bin Fei 1
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Near-infrared (NIR) radiation has widely been applied for phototherapy due to its beneficial thermal effect on human tissue. However, desirable thermal textiles have not been actualized by implementing this radiation into textile fiber. Herein, persistent NIR-emitting fibers have been fabricated by incorporating long-lasting phosphorescent phosphor and fluorescent Ag2S quantum dots (QDs) into the regenerated silk fibroin (SF)-based core–sheath fibers. Green-emitting phosphor was introduced into the fiber core during coaxial wet spinning, while various layers of QDs emissive in NIR range were deposited on the fiber surface. A double-layered hollow structure was obtained in these fibers with improved surface uniformity. Fluorescence spectrometry confirmed that the green emission of the embedded phosphors (i.e. 492 nm) was absorbed by the surface Ag2S layer to give continuous NIR emission. Up to 13.5 % of the 993 nm NIR radiation passed through porcine epidermis of 0.25 mm thickness. This work has shed new light on the fabrication of self-warming fiber, which is anticipated to be applied in various fields such as continuous warming textiles and wearable phototherapy devices.
中文翻译：
同轴湿纺太阳能储能丝
由于近红外（NIR）辐射对人体组织的有益热作用，因此已广泛用于光疗。然而，尚未通过将这种辐射实施到纺织纤维中来实现期望的热纺织品。在此，通过掺入长效磷光磷光体和荧光Ag 2来制造持久的近红外发射纤维。S个量子点（QDs）进入再生的基于丝素蛋白（SF）的芯鞘纤维。在同轴湿纺过程中，绿色荧光粉被引入到纤维芯中，而在NIR范围内发射的各种QD沉积在纤维表面上。在这些纤维中获得了具有改善的表面均匀性的双层中空结构。荧光光谱法证实，嵌入的磷光体的绿色发射光（即492 nm）被表面Ag 2 S层吸收，从而产生连续的近红外发射。993 nm NIR辐射中最多有13.5％通过厚度为0.25 mm的猪表皮。这项工作为自保温纤维的制造提供了新的亮点，有望将其应用于各种领域，例如连续加热的纺织品和可穿戴的光疗设备。
更新日期：2020-07-06
中文翻译：
同轴湿纺太阳能储能丝
由于近红外（NIR）辐射对人体组织的有益热作用，因此已广泛用于光疗。然而，尚未通过将这种辐射实施到纺织纤维中来实现期望的热纺织品。在此，通过掺入长效磷光磷光体和荧光Ag 2来制造持久的近红外发射纤维。S个量子点（QDs）进入再生的基于丝素蛋白（SF）的芯鞘纤维。在同轴湿纺过程中，绿色荧光粉被引入到纤维芯中，而在NIR范围内发射的各种QD沉积在纤维表面上。在这些纤维中获得了具有改善的表面均匀性的双层中空结构。荧光光谱法证实，嵌入的磷光体的绿色发射光（即492 nm）被表面Ag 2 S层吸收，从而产生连续的近红外发射。993 nm NIR辐射中最多有13.5％通过厚度为0.25 mm的猪表皮。这项工作为自保温纤维的制造提供了新的亮点，有望将其应用于各种领域，例如连续加热的纺织品和可穿戴的光疗设备。
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