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There is a real need for new antibiotics against self‐evolving bacteria. One option is to use biofriendly broad‐spectrum and mechanically tunable antimicrobial hydrogels that can combat multidrug‐resistant microbes. Whilst appealing, there are currently limited options. Herein, broad‐spectrum antimicrobial biometallohydrogels based on the self‐assembly and local mineralization of Ag+‐coordinated Fmoc‐amino...
Spinal cord injury (SCI) is a devastating disorder, leading to permanent motor and sensory deficit. Despite recent advances in neurosciences, the treatment efficacy on SCI patients remains unsatisfactory, mainly due to the poor accumulation, short retention, and lack of controlled release of therapeutics in lesion tissue. Herein, an injured spinal cord targeting prodrug polymer micelle is built. An...
Ultralong organic phosphorescence (UOP), enabling of persistent luminescence after removal of external excitation light, shows great promise in biological applications such as bioimaging in virtue of antibackground fluorescence interference. Despite of good biocompatibility and outstanding phosphorescent properties, most current organic phosphors are hydrophobic with poor water solubility in the form...
Conjugated coordination polymers (CPs) with designable and predictable structures have drawn tremendous attention in recent years. However, the poor electrical conductivity and low structural stability seriously restrict their practical applications in electronic devices. Herein, the rational design and synthesis of a hierarchically structured 2D bimetallic CoNi‐hexaaminobenzene CPs derived from Co(OH)...
The optogenetic neuron ablation approach enables noninvasive remote decoding of specific neuron function within a complex living organism in high spatiotemporal resolution. However, it suffers from shallow tissue penetration of visible light with low ablation efficiency. This study reports a upconversion nanoparticle (UCNP)–based multiplex proteins activation tool to ablate deep‐tissue neurons for...
Here, the ability of a novel near‐infrared dye to noncovalently self‐assemble onto the surface of single‐walled carbon nanotubes (SWCNTs) driven by charge‐transfer interactions is demonstrated. Steady‐state, Raman, and transient absorption spectroscopies corroborate the electron donating character of the near‐infrared dye when combined with SWCNTs, in the form of fluorescence quenching of the excited...
In article number 1906076, Li‐Zhen Fan and co‐workers design a stable and highly conductive pre‐intercalated Li+ layered cathode by a self‐discharge strategy. The prelithiated V2C nanosheets can achieve Mg2+/Li+ co‐interecalation and show a superior electrochemical performance, which have potential applications in energy storage.
In article number 1907029, Jianying Huang, Jun Hu, Yuekun Lai, Yuxin Tang, and co‐workers reveal a correlation between the oxygen evolution reaction overpotential and the cobalt‐based electrode composition in an electrospinning “Microparticles‐in‐Spider Web” superstructure electrode, leading to remarkable electrocatalytic activity.
In article number 1906005, Li Qiu, Wei Zhang, and co‐workers report the first example of a PPh3‐based crystalline covalent organic framework (COF) as a scaffold for broad‐scope nanoparticle synthesis. The obtained COF‐supported ultrafine (<2 nm) monometallic as well as bimetallic nanoparticles with narrow size distributions exhibit high stability, excellent catalytic activities and reusability...
In article number 1906768, Jinhan Cho, Younghoon Kim, and co‐workers design an oxygen vacancy‐controlled layer‐by‐layer assembly using extremely small molecular linkers with chemically reducing properties. This approach can provide a novel perspective for developing a wide range of highly functional metal and/or metal oxide nanocomposite films as well as transparent conducting electrodes.
Solution‐processable transparent conducting oxide (TCO) nanoparticle (NP)–based electrodes are limited by their low electrical conductivity, which originates from the low level of oxygen vacancies within NPs and the contact resistance between neighboring NPs. Additionally, these electrodes suffer from the troublesome trade‐off between electrical conductivity and optical transmittance and the restricted...
A method for the solidification of metallic alloys involving spiral self‐organization is presented as a new strategy for producing large‐area chiral patterns with emergent structural and optical properties, with attention to the underlying mechanism and dynamics. This study reports the discovery of a new growth mode for metastable, two‐phase spiral patterns from a liquid metal. Crystallization proceeds...
In this work, a phosphine‐based covalent organic framework (Phos‐COF‐1) is successfully synthesized and employed as a template for the confined growth of broad‐scope nanoparticles (NPs). Ascribed to the ordered distribution of phosphine coordination sites in the well‐defined pores, various stable and well‐dispersed ultrafine metal NPs including Pd, Pt, Au, and bimetallic PdAuNPs with narrow size distributions...
Herein, an all‐solid‐state sequential self‐organization and self‐assembly process is reported for the in situ construction of a color tunable luminous inorganic/polymer hybrid with high direct piezoresponse. The primary inorganic self‐organization in solid polymer and the subsequent polymer self‐assembly are achieved at high pressure with the first utilization of piezo‐copolymer (PVDF‐TrFE) as the...
One of the strategies for heart regeneration includes cell delivery to the defected heart. However, most of the injected cells do not form quick cell–cell or cell–matrix interactions, therefore, their ability to engraft at the desired site and improve heart function is poor. Here, the use of a microfluidic system is reported for generating personalized hydrogel‐based cellular microdroplets for cardiac...
Lightweight and mechanically strong protein fibers are promising for many technical applications. Despite the widespread investigation of biological fibers based on spider silk and silkworm proteins, it remains a challenge to develop low‐cost proteins and convenient spinning technology for the fabrication of robust biological fibers. Since there are plenty of widely available proteins in nature, it...
In article number 1906146, Robert O. Ritchie, Ashwin J. Shahani, and co‐workers investigate the origins of certain eutectics that grow into spiral geometry. The spiral formation follows a two‐step process, wherein the first step is mediated by the low solid–liquid interfacial energy of a precursor phase, and the second step by crystallographic defects on the precursor. The cover features a computed...
Sluggish kinetics of the multielectron transfer process is still a bottleneck for efficient oxygen evolution reaction (OER) activity, and the reduction of reaction overpotential is crucial to boost reaction kinetics. Herein, a correlation between the OER overpotential and the cobalt‐based electrode composition in a “Microparticles‐in‐Spider Web” (MSW) superstructure electrode is revealed. The overpotential...
The blood–brain barrier (BBB) is the most important obstacle to improving the clinical outcomes of diagnosis and therapy of glioblastoma. Thus, the development of a novel nanoplatform that can efficiently traverse the BBB and achieve both precise diagnosis and therapy is of great importance. Herein, an intelligent nanoplatform based on holo‐transferrin (holo‐Tf) with in situ growth of MnO2 nanocrystals...
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