Stable Zinc Anodes Enabled by a Zincophilic Polyanionic Hydrogel Layer

A unique polyanionic hydrogel is employed as an artificial protective layer for reversible Zn-metal anodes. The polyanions in the hydrogel framework facilitate a homogeneous zinc-ion flux, and the Zn–O bonding strengthens the interface and suppresses surface corrosion and irregular Zn dendrites growth. This strategy could apply also to other aqueous...

5h

Boosting Electrochemical Styrene Transformation via Tandem Water Oxidation over a Single‐Atom Cr1/CoSe2 Catalyst

A tandem oxidation strategy based on a Co–Cr cooperated single-atom Cr1/CoSe2 electrocatalyst is presented, turning the competition between the oxygen evolution reaction and styrene oxidation into mutual benefits via the migration of the *OOH intermediate from the Co to the Cr site, achieving an efficient and mild selective oxidation of styrene without...

5h

Simultaneous Electrochemical Exfoliation and Covalent Functionalization of MoS2 Membrane for Ion Sieving

Through exfoliation of the electrochemically lithium-intercalated MoS2 in iodoacetamide water solution, the covalent functionalization of single-layer MoS2 with iodoacetamide molecules can be shortened to 15 min, and functionalized MoS2 membranes are fabricated via vacuum filtration. Under reverse osmosis mode, the functionalized MoS2 membranes exhibit...

5h

Engineered Exosomes with Independent Module/Cascading Function for Therapy of Parkinson's Disease by Multistep Targeting and Multistage Intervention Method

The concept of an “independent module/cascading function” to construct an engineered exosome nanotherapy platform is proposed. The artificial module with movement/chemotaxis ability is controllably combined with a natural exosome module with “one by one” mode by using a “differentiated” modification method, which realizes the “cascading function” for...

5h

Recent progress of metal sulfide photocatalysts for solar energy conversion

Abstract Artificial photosynthetic solar-to-chemical cycles enable an entire environment to operate in a more complex, yet effective, way to perform natural photosynthesis. However, such artificial systems suffer from a lack of well-established photocatalysts with the ability to harvest the solar spectrum and rich catalytic active-site density. Benefiting...

5h

Magnetic‐Powered Janus Cell Robots Loaded with Oncolytic Adenovirus for Active and Targeted Virotherapy of Bladder Cancer

Janus oncolytic adenovirus-loaded 293T cell robots with full coating of targeted peptides and Janus modification of magnetic nanoparticles are capable of controllable magnetic propulsion and tumor-specific binding and killing. Such active medical platform with enhanced tissue retention and penetration shows the highest therapeutic efficacy in treating...

5h

The Role of Long‐Alkyl‐Group Spacers in Glycolated Copolymers for High‐Performance Organic Electrochemical Transistors

New molecular design rules are established to overcome the trade-off between electronic and ionic conduction in OECTs. The gDPP-TTVTT copolymer achieves the best operational stability and maximum transconductance of 61.9 S cm− 1. The long-alkyl-group spacer prevents morphological and electrostatic disruptions to the conjugated backbone, maintaining...

5h

Revealing the Structural Coloration of Self‐Assembled Chitin Nanocrystal Films

Abstract The structural coloration of arthropods often arises from helicoidal structures made primarily of chitin. Although it is possible to achieve analogous helicoidal architectures by exploiting the self-assembly of chitin nanocrystals (ChNCs), to date no evidence of structural coloration has been reported from such structures. In this work, we...

5h

Polarity‐Differentiated Dielectric Materials in Monolayer Graphene Charge‐Regulated Field‐Effect Transistors for an Artificial Reflex Arc and Pain Modulation System of the Spinal Cord

Abstract The nervous system is a vital part of organisms to survive and it endows them with remarkable abilities, such as perception, recognition, regulation, learning, and decision-making, by intertwining myriad neurons. To realize such outstanding efficacies and functions, many artificial devices and systems have been investigated to emulate the...

1d

Inhibition and Reconstruction of Zener Tunneling in Photonic Honeycomb Lattices

A precise site-dependent photonic material has the ability of modifying momentum-space properties and maintaining the coherence of bulk states in transport. Artificial honeycomb lattices with an effective force are constructed to realize highly controllable Zener tunneling and the coherence protection of particles transmitting on artificial quantum...

1d