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Covalent Organic Frameworks
In article number 2307666, Yu Zhao, Teng Ben, Yuichi Negishi, and co‐workers constructed the first three‐dimensional covalent organic framework, TUS‐38, with the topology by reticulating a planar triangular 3‐c node of D3h symmetry with a tetragonal prism 8‐c node of D2h symmetry via [3+8] reversible imine condensation reaction. The obtained TUS‐38 shows an exemplary capacity...
Discovery of new topology covalent organic frameworks (COFs) is a mainstay in reticular chemistry and materials research because it not only serves as a stepwise guide to the designed construction of covalent‐organic architectures but also helps to comprehend function from structural design point‐of‐view. Proceeding on this track, the first 3D COF, TUS‐38, with the topology is constructed by reticulating...
Fuel cells offer great promise for portable electricity generation, but their use is currently limited by their low durability, excessive operating temperatures, and expensive precious metal electrodes. It is therefore essential to develop fuel cell systems that can perform effectively using more robust electrolyte materials, at reasonable temperatures, with lower‐cost electrodes. Recently, proton...
Traditional metal‐organic frameworks (MOFs) based micro/nanomotors (MOFtors) can achieve three‐dimensional (3D) motion mainly depending on noble metal (e.g., Pt), toxic fuels (e.g., hydrogen peroxide), and surfactants, or under external magnetic fields. In this study, light‐driven MOFtors are constructed based on PCN‐224(H) and regulated their photothermal and photochemical properties responding to...
Next‐generation imaging systems require photodetectors with high sensitivity, polarization sensitivity, miniaturization, and integration. By virtue of their intriguing attributes, emerging 2D materials offer innovative avenues to meet these requirements. However, the current performance of 2D photodetectors is still below the requirements for practical application owing to the severe interfacial recombination,...
A photodetector based on 2D non‐layered materials can easily utilize the photogating effect to achieve considerable photogain, but at the cost of response speed. Here, a rationally designed tunneling heterojunction fabricated by vertical stacking of non‐layered In2S3 and Te flakes is studied systematically. The Te/In2S3 heterojunctions possess type‐II band alignment and can transfer to type‐I or type‐III...
With the accelerating update of advanced electronic gadgets, a great deal of attention is being paid today to the function integration and intelligent design of electronic devices. Herein, a novel kind of multitasking 3D oxygen‐deficient WO3–x ∙ 2H2O/Ag/ceramic microscaffolds, possessing simultaneous giant energy density, ultrahigh mechanical strength, and reversible electrochromic performance is...
Combination therapy based on molecular drugs and therapeutic genes provides an effective strategy for malignant tumor treatment. However, effective gene and drug combinations for cancer treatment are limited by the widespread antagonism between therapeutic genes and molecular drugs. Herein, a calixarene‐embedded nanoparticle (CENP) is developed to co‐deliver molecular drugs and therapeutic genes without...
Silicon‐based electronic devices, especially graphene/Si photodetectors (Gr/Si PDs), have triggered tremendous attention due to their simple structure and flexible integration of the Schottky junction. However, due to the relatively poor light–matter interaction and mobility of silicon, these Gr/Si PDs typically suffer an inevitable compromise between photoresponsivity and response speed. Herein,...
In article number 1800994, Lan Yin and co‐workers propose a high‐performance fully biodegradable primary battery system. Energy provided by a single cell could satisfy most ultralow‐power implantable devices and maintain robust functions. The battery is fully degradable both in vitro and in vivo. The battery system could find application in biodegradable, electronic implants for advanced diagnosis...
Biodegradable transient devices represent an emerging type of electronics that could play an essential role in medical therapeutic/diagnostic processes, such as wound healing and tissue regeneration. The associated biodegradable power sources, however, remain as a major challenge toward future clinical applications, as the demonstrated electrical stimulation and sensing functions are limited by wired...
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