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Improving local bone mineral density (BMD) at fracture‐prone sites of bone is a clinical concern for osteoporotic fracture prevention. In this study, a featured radial extracorporeal shock wave (rESW) responsive nano‐drug delivery system (NDDS) is developed for local treatment. Based on a mechanic simulation, a sequence of hollow zoledronic acid (ZOL)‐contained nanoparticles (HZNs) with controllable...
In article number 2000128, Youhui Lin, Xiang Yang Liu, and co‐workers successfully create 3D “molecular springs” networks by establishing crosslinks of scattered wool keratin. The as‐prepared networks display unique elasticity, high resistance fatigue, fast self‐recovery, and ultralow effective elastic modulus. Due to the fascinating features, such wool keratin mediated materials can be used in the...
Wool keratin (WK) consists of a large number of α‐helices, which are just like many molecular‐scale springs. Herein, the construction of 3D WK molecular spring networks are reported by cross‐linking individual WK molecules via a Michael addition reaction. The as‐prepared springs display a superior recovery capability with unusual nonlinear elasticity, very low dissipative energy, and turntable elastic...
A comprehensive review on the five levels of hierarchical structures of silk materials and the correlation with macroscopic properties/performance of the silk materials, that is, the toughness, strain‐stiffening, etc., is presented. It follows that the crystalline binding force turns out to be very important in the stabilization of silk materials, while the β‐crystallite networks or nanofibrils and...
This cover design is inspired by an ancient Chinese myth of “Fuxi & Nvwa”. Herein, two silkworms are bundled together under mulberry trees. The left and right silkworms represent the structure and mechanical performance of silk materials, respectively. The five‐storied pagoda suggests the five‐level structure and the entanglement emphasizes the fact that hierarchical structures are highly correlated...
The intelligent glove of the robot hand enables him to experience the “sense of touch”, which is the same as human sensing. In article number 1901558, Wenxi Guo, Weidong Yu, Xiang Yang Liu, and co‐workers fabricate such an intelligent sensing glove that monitors temperature and pressure by embedding sensing yarns into textiles.
Wearable electronic textiles based on natural biocompatible/biodegradable materials have attracted great attention due to applications in health care and smart clothes. Silkworm fibers are durable, good heat conductors, insulating, and biocompatible, and are therefore regarded as excellent mediating materials for flexible electronics. In this paper, a strategy on the design and fabrication of highly...
In article number 1804171, Xiang Yang Liu and co‐workers investigate the self‐collimation effect on fluorescence emission, and the design of a silk fluorescence collimator is applied to a humidity sensor and dye‐sensitized solar cells. This method of complete control of fluorescence emission by introducing mesoscopic ordered structures and its potential applications may significantly broaden the utility...
This work examines the self‐collimation effect of silk materials on fluorescence emission/detection. A macroscopic regulation strategy, coupled with meso‐reconstruction and meso‐functionalization, is adopted to amplify the fluorescence emission of organic fluorescent dyes (i.e., Rhodamine 6G (R6G)) using silk photonic crystal (PC) films. The fluorescence emission can be linearly enhanced or inhibited...
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