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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...
Selenium (Se)‐based rechargeable aluminum batteries (RABs), known as aluminum–selenium (Al–Se) batteries, are an appealing new battery design that holds great promise for addressing the low‐capacity problem of current RAB technology. However, their applications are hindered by mediocre high‐rate capacity (≈100 mAh g−1 at 0.5 A g−1) and insufficient cycling life (50 cycles). Herein, the synthesis of...
Controlled growth of metal–organic frameworks (MOFs) nanocrystals on requisite surfaces is highly desired for myriad applications related to catalysis, energy, and electronics. Here, this challenge is addressed by overlaying arbitrary surfaces with a thermally evaporated metal layer to enable the well‐aligned growth of ultralong quasi‐2D MOF nanoarrays comprising cobalt ions and thiophenedicarboxylate...
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...
Carbon dots (CDs) have attracted increasing attention in disease therapy owing to their low toxicity and good biocompatibility. Their therapeutic effect strongly depends on the CDs structure (e.g., size or functional groups). However, the impact of CDs chirality on maltase and blood glucose level has not yet been fully emphasized and studied. Moreover, in previous reports, chiral CDs with targeted...
In article number 1902431, Xiangcun Li and co‐workers prepare a Pt@Ni core–shell bimetallic catalyst based on a confined catalysis reaction in porous carbon spheres. The synergic effect facilitates catalytic oxidation of insoluble polysulfides to soluble polysulfides. Electronic migration from Ni to Pt becomes a driving force for Ni activating Li2S molecules by promoting the transformation of Li‐S‐Li...
Reducing the deposit of discharge products and suppressing the polysulfide shuttle are critical to enhancing reaction kinetics in Li‐S batteries. Herein, a Pt@Ni core–shell bimetallic catalyst with a patch‐like or complete Ni shell based on a confined catalysis reaction in porous carbon spheres is reported. The Pt nanodots can effectively direct and catalyze in situ reduction of Ni2+ ions to form...
With the rapid growth of material innovations, multishelled hollow nanostructures are of tremendous interest due to their unique structural features and attractive physicochemical properties. Continued effort has been made in the geometric manipulation, composition complexity, and construction diversity of this material, expanding its applications. Energy storage technology has benefited from the...
Mesoscale self‐assembly of particles into supercrystals is important for the design of functional materials such as photonic and plasmonic crystals. However, while much progress has been made in self‐assembling supercrystals adopting diverse lattices and using different types of particles, controlling their growth orientation on surfaces has received limited success. Most of the latter orientation...
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...
Multifunctional coatings, especially those with simultaneous antibiofilm formation and anticorrosion properties are of great significance for the marine industry. Inspired by the function of fish mucus of blackhead fish, a biological epidermal secretion with negative surface potential that protects blackhead fish from colonization of microorganisms, a concept is introduced to use negatively charged...
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...
Due to the natural biodegradability and biocompatibility, silk fibroin (SF) is one of the ideal platforms for on‐skin and implantable electronic devices. However, the development of SF‐based electronics is still at a preliminary stage due to the SF film intrinsic brittleness as well as the solubility in water, which prevent the fabrication of SF‐based electronics through traditional techniques. In...
In article number 1805084, Xiang Yang Liu, Wenxi Guo, and co‐workers fabricate a biodegradable and stretchable silk fibroin‐based sensor for simultaneously detecting pressure and strain signals. The sensor demonstrates a large monitoring window with high response time. Furthermore, the sensor is air‐permeable and inflammation‐free, so that it can be directly laminated onto human skin for long‐term...
Precious metals such as palladium (Pd) and platinum (Pt) are marvelous materials in the fields of electronic and catalysis, but they are tapering day by day. Zr(IV)‐based metal–organic frameworks (MOFs) are competent for their recovery, notably in harsh environments, while the general powder form limits their practical application. Porous MOF‐based membranes with ultraefficient metal ion permeation,...
Metal–Organic Framework (MOF)–polymer compatibility is a thorny issue in practical applications. In article number 1805242, Hak Yong Kim, Yeoung‐Sang Yun, and co‐workers investigate Zr(IV)‐based MOF membranes for precious metal recovery in a strongly acidic environment. The fibrous membranes show outstanding performances, and good stability attributing to strong π–π interactions between polymer chains...
Confinement of urate oxidase with detoxifying enzymes into multienzyme architecture is an appealing approach for gout treatment due to its capability to decompose serum uric acid without generation of H2O2. However, most of these strategies involve chemical modifications to the enzymes and barely consider enhancing the stability of the multienzyme architectures particularly against proteolysis, which...
A systematic colloidal synthesis approach to prepare tin(II, IV) chalcogenide nanocrystals with controllable valence and morphology is reported, and the preparation of solution‐processed nanostructured thermoelectric thin films from them is then demonstrated. Triangular SnS nanoplates with a recently‐reported π‐cubic structure, SnSe with various shapes (nanostars and both rectangular and hexagonal...
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