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The atomic force microscopy (AFM) is an important tool capable of characterization, measurement, and manipulation at the nanoscale with a vertical resolution of less than 0.1 nm. However, the conventional AFMs' scanning range is around 100 µm, which limits their capability for processing cross‐scale samples. In this study, it proposes a novel approach to overcome this limitation with an ultra‐large...
Atomic Force Microscopy
In article number 2303838, Yingchun Guan, Zhen Zhang, and co‐workers present an ultra‐large scale stitchless atomic force microscopy (AFM) through a synergistic integration with a compliant nano‐manipulator. It enables high‐throughput characterization of ultra‐large scale samples without stitching or bow errors, expanding the scanning area of conventional AFMs by two orders...
Tendon stem/progenitor cells (TSPCs) therapy is a promising strategy for enhancing cell matrix and collagen synthesis, and regulating the metabolism of the tendon microenvironment during tendon injury repair. Nevertheless, the barren microenvironment and gliding shear of tendon cause insufficient nutrition supply, damage, and aggregation of injected TSPCs around tendon tissues, which severely hinders...
Allostery is a naturally occurring mechanism in which effector binding induces the modulation and fine control of a related biomolecule function. Deoxyribozyme (DNAzyme) with catalytic activity and substrate recognition ability is ideal to be regulated by allosteric strategies. However, the current regulations frequently confront various obstacles, such as severe activity decay, signal leakage, and...
Tuning the microenvironment and electronic structure of support materials is essential strategy to induce electron transfer between supports and active centers, which is of great importance in optimizing catalytic kinetics. In this study, the molybdenum oxycarbide supported Rh‐clusters are synthesized with modulated interstitial C–O microenvironments (Rh/MoOC) for promoting efficient hydrogen evolution...
Multifunctional thermal management materials with highly efficient electromagnetic wave (EMW) absorption performance are urgently required to tackle the heat dissipation and electromagnetic interference issues of high integrated electronics. However, the high thermal conductivity (λ) and outstanding EMW absorption performance are often incompatible with each other in a single material. Herein, a through‐thickness...
Metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) hybrid materials are a class of porous crystalline materials that integrate MOFs and COFs with hierarchical pore structures. As an emerging porous frame material platform, MOF/COF hybrid materials have attracted tremendous attention, and the field is advancing rapidly and extending into more diverse fields. Extensive studies have...
Persistent organic pollutants (POPs) have a huge impact on human health due to their high toxicity and non‐degradability. It is still of great difficulty to develop highly efficient catalysts toward the degradation of POPs. Herein, it is reported that regulating electronic structure of quasi‐single atomic ferric iron (Fe(III)) in the VO2 support through the electronic metal‐support interaction (EMSI)...
Understanding phase transitions of ultrathin metal silicides is crucial for the development of nanoscale silicon devices. Here, the phase transition of ultrathin (3.6 nm) Ni silicides on Si(100) substrates is investigated using an in situ synthesis and characterization approach, supplemented with ex situ transmission electron microscopy and nano‐beam electron diffraction. First, an ultrathin epitaxial...
In the past few decades, significant progress of the conventional upconversion nanoparticles (UCNPs) based nanoplatform has been achieved in many fields, and with the development of nanoscience and nanotechnology, more and more complex situations need a UCNPs based nanoplatform having multifunctions for specific multimodal or multiplexed applications. Through self‐assembly, different UCNPs or UCNPs...
Managing elastic properties of ABX3 type molecular perovskite ferroelectrics is critical to their future applications since these parameters determine their service durability and reliability in devices. The abundant structural and chemical viability of these compounds offer a convenient way to manipulate their elastic properties through a facile chemical approach. Here, the elastic properties and...
In article number 2007333, Ping Li, Jiantao Fan, Hui Li, and co‐workers demonstrate the comprehensive exploration of a series of ruthenium dichalcogenide crystals (RuX2, X = S, Se, Te) toward hydrogen evolution reaction (HER) electrocatalysis performance. These catalysts anchored on carbon nanotubes exhibit outstanding HER activity and stability in both acidic and alkaline media, making them cheaper...
The hydrogen evolution reaction (HER) is a significant cathode step in electrochemical devices, especially in water splitting, but developing efficient HER catalysts remains a great challenge. Herein, comprehensive density functional theory calculations are presented to explore the intrinsic HER behaviors of a series of ruthenium dichalcogenide crystals (RuX2, X = S, Se, Te). In addition, a simple...
Upconversion nanoparticles (UCNPs) have gone beyond traditional fluorophores in a lot of fields due to the outstanding features such as sharp excitation and emission bands, chemical and photo stability of high quality, low auto fluorescence, and high tissue permeation depth of the near‐infrared irradiation light used for excitation. Conventional UCNPs carrying single/multiple emissions under a single...
The encapsulation of specific nanoentities into hollow nanomaterials derived from metal organic frameworks has attracted continuous and growing research attentions owing to their unique structural properties and unusual synergistic functions. Herein, using the phase transformation of uniform rhombi dodecahedron ZIF‐67, hollow nano‐shell with a well‐defined morphology is successfully prepared. Particularly,...
Highly efficient charge separation has been demonstrated as one of the most significant steps playing decisive roles in enhancing the overall efficiency of photoelectrochemical (PEC) processes. In this study, by employing 5,10,15,20‐tetrakis (4‐carboxyphenyl) porphyrin‐Ni (NiTCPP) as a prototype, an oxygen vacancy (Vo)‐mediated reverse regulation strategy is proposed for tuning hole transfer, which...
Quasi‐two‐dimensional (QTD) structural heterogeneous catalysts have attracted a broad interest in multidisciplinary research due to their unique structure, preeminent surface properties and outstanding catalytic performance. Herein, a HZIF@TCPP‐Fe/Fe heterogeneous catalyst based on cross‐linked surface engineering is constructed by supporting QTD TCPP‐Fe/Fe ultra‐thin metallized film (≈2 nm) on hollow...
Epithelial–mesenchymal transition (EMT) is a primary mechanism for cancer metastasis. Detecting the activation of EMT can potentially convey signs of metastasis to guide treatment management and improve patient survival. One of the classic signatures of EMT is characterized by dynamic changes in cellular expression levels of E‐cadherin and N‐cadherin, whose soluble active fragments have recently been...
Efficient charge separation and sufficiently exposed active sites are important for light‐driving Fenton catalysts. 0D/2D hybrids, especially quantum dots (QDs)/nanosheets (NSs), offer a better opportunity for improving photo‐Fenton activity due to their high charge mobility and more catalytic sites, which is highly desirable but remains a great challenge. Herein, a 0D hematite quantum dots/2D ultrathin...
Transition metal chalcogenides are investigated for catalyst, intermediary agency, and particular optical properties because of their distinguished electron‐vacancy‐transfer (EVT) process toward different applications. In this work, one convenient approach for making pure‐phased FeSe nanocrystals (NCs) and doped CuFeSe nanosheets (NSs) through a wet chemistry method in mixed solvents is illustrated...
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