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The synthetic application of prenucleation‐stage samples of colloidal semiconductor quantum dots (QDs) is in its infancy. It is shown that when two prenucleation‐stage samples of binary CdSe and CdS are mixed, ternary CdSeS magic‐size clusters (MSCs) grow at room temperature in dispersion. As the amount of the CdS sample increases, the optical absorption of the CdSeS MSCs blueshifts from ≈380 to ≈360...
Ulcerative colitis (UC), an immune‐mediated chronic inflammatory disease, drastically impacts patients' quality of life and increases their risk of colorectal cancer worldwide. However, effective oral targeted delivery and retention of drugs in colonic lesions are still great challenges in the treatment of UC. Coacervate microdroplets, formed by liquid–liquid phase separation, are recently explored...
Optimizing the electrode/electrolyte interface structure is the key to realizing high‐voltage Li‐metal batteries (LMBs). Herein, a functional electrolyte is introduced to synergetically regulate the interface layer structures on the high‐voltage cathode and the Li‐metal anode. Saccharin sodium (NaSH) as a multifunctional electrolyte additive is employed in fluorinated solvent‐based electrolyte (FBE)...
Violet phosphorus (VP) has attracted a lot of attention for its unique physicochemical properties and emerging potential in photoelectronic applications. Although VP has a van der Waals (vdW) structure similar to that of other 2D semiconductors, direct synthesis of VP on a substrate is still challenging. Moreover, optoelectronic devices composed of transfer‐free VP flakes have not been demonstrated...
Metal‐Organic Frameworks
In article number 2400399, Hui Zhang and co‐workers prepare polycaprolactone nanofibers deposited with limonene‐loaded nanosized γ‐cyclodextrin metal‐organic frameworks. The nanofibers achieve sustained release of limonene and effectively inhibit bacterial growth, leading to a longer shelf life of fresh‐cut apples.
To address the issue of bacterial growth on fresh‐cut fruits, this paper reports the synthesis of nanosized γ‐cyclodextrin metal‐organic frameworks (CD‐MOFs) using an ultrasound‐assisted method and their application as carriers of limonene for antibacterial active packaging. The effects of the processing parameters on the morphology and crystallinity of the CD‐MOFs are investigated, and the results...
Currently, artificial neural networks (ANNs) based on memristors are limited to recognizing static images of objects when simulating human visual system, preventing them from performing high‐dimensional information perception, and achieving more complex biomimetic functions is subject to certain limitations. In this work, indium gallium zinc oxide (IGZO)/tungsten oxide (WO3−x)‐heterostructured artificial...
Constructing a stable and robust solid electrolyte interphase (SEI) has a decisive influence on the charge/discharge kinetics of lithium‐ion batteries (LIBs), especially for silicon‐based anodes which generate repeated destruction and regeneration of unstable SEI films. Herein, a facile way is proposed to fabricate an artificial SEI layer composed of lithiophilic chitosan on the surface of two‐dimensional...
A series of homochiral coordination polymers (HCPs), [M2(SIAP)2(bpy)2] [M(S)] and [M2(RIAP)2(bpy)2] [M(R)] (M = Zn or Cd, SIAP or RIAP = (S,S)‐ or (R,R)‐ 2,2′‐(isophthaloylbis(azanediyl))di‐propionic acid, bpy = 4,4′‐bipyridine), is successfully synthesized through solvothermal reactions, self‐assembling d10 metal cations, chiral dicarboxylic ligands, and π‐conjugated bipyridyl ligands. The HCPs crystallize...
Electronic Skin
In article number 2308127, Qichong Zhang, Nam‐Young Kim, Yang Li, and co‐workers propose a novel all‐fabric bionic (AFB) electronic skin (e‐skin) based on capacitive sensing, which achieves intuition and tactile bimodal sensing based on the fringing and iontronic effects. Assisted by the artificial intelligence‐motivated “brain”, the proposed AFB e‐skin can achieve the efficient perception...
Despite incorporation of organic groups into silica‐based aerogels to enhance their mechanical flexibility, the wide temperature reliability of the modified silicone aerogel is inevitably degraded. Therefore, facile synthesis of soft silicone aerogels with wide‐temperature stability remains challenging. Herein, novel silicone aerogels containing a high content of Si are reported by using polydimethylvinylsiloxane...
Developing electronic skins (e‐skins) with extraordinary perception through bionic strategies has far‐reaching significance for the intellectualization of robot skins. Here, an artificial intelligence (AI)‐motivated all‐fabric bionic (AFB) e‐skin is proposed, where the overall structure is inspired by the interlocked bionics of the epidermis‐dermis interface inside the skin, while the structural design...
Non‐aqueous solvents, in particular N,N‐dimethylaniline (NMP), are widely applied for electrode fabrication since most sodium layered oxide cathode materials are readily damaged by water molecules. However, the expensive price and poisonousness of NMP unquestionably increase the cost of preparation and post‐processing. Therefore, developing an intrinsically stable cathode material that can implement...
Achieving longitudinal doping of specific ions by surface treatment remains a challenge for perovskite solar cells, which are often limited by dopant and solvent compatibility. Here, with the flowing environment created by CsBr colloidal nanocrystals, ion exchange is induced on the surface of the perovskite film to enable the homogeneous distribution of Cs+ and gradient distribution of Br− simultaneously...
Low Coulombic efficiency (CE) and safety issues are huge problems that hinder the practical application of Li metal anodes. Constructing Li host structures decorated with functional species can restrain the growth of Li dendrites and alleviate the great volume change. Here, a 3D porous carbonaceous skeleton modified with rich lithiophilic groups (Zn, ZnO, and Zn(CN)2) is synthesized as a Li host via...
MXenes have demonstrated significant potential in electrochemical energy storage, particularly in supercapacitors, owing to their exceptional properties. The surface terminal groups of MXene play a pivotal role in pseudocapacitive mechanism. Considering the hindered electrolyte ion transport caused by –F terminal groups and the limited ion binding sites associated with –O terminal groups, this study...
Defect engineering is promising to tailor the physical properties of 2D semiconductors for function‐oriented electronics and optoelectronics. Compared with the extensively studied 2D binary materials, the origin of defects and their influence on physical properties of 2D ternary semiconductors are not clarified. Here, the effect of defects on the electronic structure and optical properties of few‐layer...
The use of photothermal therapy (PTT) with the near‐infrared II region (NIR‐II: 1000–1700 nm) is expected to be a powerful cancer treatment strategy. It retains the noninvasive nature and excellent temporal and spatial controllability of the traditional PTT, and offers significant advantages in terms of tissue penetration depth, background noise, and the maximum permissible exposure standards for...
Photothermal Therapy
With wide spectral absorption and high photothermal conversion efficiency, the photothermal treatment based on 2D MXenes at NIR‐II has significant advantages in biological tissue penetration depth and biocompatibility, which is a promising biomedical treatment. In article number 2305645, Yisen Wang and co‐workers introduced the photothermal properties, conversion mechanism and...
Zn‐based electrochemical energy storage (EES) systems are attracting more attention, whereas their large‐scale application is restricted by the dendrite and parasitic reaction‐caused unstable Zn anodes. Herein, a negatively charged hydrophobic carbon nano‐onion (CNO) interfacial layer is proposed to realize ultrastable and high‐rate Zn anodes, enabling high‐performance Zn‐based EES. For the CNO interfacial...
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