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Low‐dose photodynamic therapy (PDT) holds great promise for reducing undesired patient photosensitivity in cancer treatment. Yet, its therapeutic effect is significantly affected by intracellular cytoprotective processes, such as autophagy. Here, an efficient autophagy suppressor is developed, which is a multifunctional DNA nanoflower (DNF) consisted of tumor‐targeting aptamers and DNAzymes for silencing...
Topotactic Transitions
In article number 2104356, Lei Cao, Oleg Petracic, and co‐workers report the first observation of a novel surface phase in La0.7Sr0.3MnO3‐δ epitaxial thin films during the topotactic transition from perovskite to brownmillerite. Given the anisotropic vacancy channels found in the surface phase, the studies not only provide a deeper understanding of oxygen‐transport behavior...
Hepatocellular carcinoma (HCC) is one of the most fatal malignancies with few effective treatment options all around the world. The efficacy of the arisen immune checkpoint therapy is still uncertain due to local immunosuppression. In order to further overcome T cell suppression in the tumor immune microenvironment while promoting the immune response of antigen‐presenting cells, a biointerfacing antagonizing...
DNAzyme–nanomaterial bioconjugates are a popular hybrid and have received major attention for diverse biomedical applications, such as bioimaging, biosensor development, cancer therapy, and drug delivery. Therefore, significant efforts are made to develop different strategies for the preparation of inorganic and organic nanoparticles (NPs) with specific morphologies and properties. DNAzymes functionalized...
Biointerfacing Nanoparticles
In article number 2105237, Dong‐Sheng Huang, Tian Yang, and co‐workers develop a strategy of targeting therapeutic nanoparticles effectively reversing the immune‐inhibiting microenvironment for enhanced PD‐L1 checkpoint combination therapy. The platelet membrane cloaked nanoparticles activate the CD8+ T lymphocytes and antigen presentation of dendritic cells as well as...
Co‐based bimetallic metal–organic frameworks (MOFs) have emerged as a kind of promising electrocatalyst for oxygen evolution reaction (OER). However, most of present works for Co‐based bimetallic MOFs are still in try‐and‐wrong stage, while the OER performance trend and the underlying structure‐function relationship remain unclear. To address this challenge, Co‐based MOFs on carbon cloth (CC) (CoM...
The urgent need for high energy batteries is pushing the battery studies toward the Li metal and solid‐state direction, and the most central question is finding proper solid‐state electrolyte (SSE). So far, the recently studied electrolytes have obvious advantages and fatal weaknesses, resulting in indecisive plans for industrial production. In this work, a thin and dense lithiated polyphenylene sulfide‐based...
As one important subclass of piezoelectric materials, pyroelectric materials have caused increasing attention owing to the unique pyroelectric effect induced by spontaneous polarization, showing broad promising application prospects due to various electrical responses induced by time‐dependent temperature variation. This review systematically introduces the pyroelectric effect and evaluation of pyroelectric...
Electrospun nanofiber membranes have been widely used for guided bone regeneration (GBR). For assistance in bone healing, photothermal therapy which renders moderate heat stimulation to defect regions by near‐infrared (NIR) light irradiation has attracted much attention in recent years. Combined with photothermal therapy, novel electrospun poly(ε‐caprolactone)/molybdenum disulfide (PCL/MoS2) nanofiber...
To mitigate the associated challenges of instability and capacity improvement in Na3V2(PO4)2F3 (NVPF), rationally designed uniformly distributed hollow spherical NVPF and coating the surface of NVPF with ultrathin (≈2 nm) amorphous TiO2 by atomic layer deposition is demonstrated. The coating facilitates higher mobility of the ion through the cathode electrolyte interphase (CEI) and enables higher...
Research on cerium oxide nanoparticles (nanoceria) has captivated the scientific community due to their unique physical and chemical properties, such as redox activity and oxygen buffering capacity, which made them available for many technical applications, including biomedical applications. The redox mimetic antioxidant properties of nanoceria have been effective in the treatment of many diseases...
In this study, PtCu‐Mo2C heterostructure with charge redistribution is investigated via first‐principles theoretical calculations. Mo2C can promote the formation of the electron‐rich region of PtCu as an active site, displaying an optimized adsorption behavior toward hydrogen in terms of reduced thermodynamic energy barriers. Owing to the attractive density functional theory calculation results, the...
In atomic force microscopy, the cantilever probe is a critical component whose properties determine the resolution and speed at which images with nanoscale resolution can be obtained. Traditional cantilevers, which have moderate resonant frequencies and high quality factors, have relatively long response times and low bandwidths. In addition, cantilevers can be easily damaged by excessive deformation,...
Combining structural DNA nanotechnology with the virtually unlimited variety of enzymes offers unique opportunities for generating novel biocatalytic devices. However, the immobilization of enzymes is still restricted by a lack of efficient covalent coupling techniques. The rational re‐engineering of the genetically fusible SNAP‐tag linker is reported here. By replacing five amino acids that alter...
New ways of directly using solar energy to charge electrochemical energy storage devices such as batteries would lead to exciting developments in energy technologies. Here, a two‐electrode photo rechargeable Li‐ion battery is demonstrated using nanorod of type II semiconductor heterostructures with in‐plane domains of crystalline MoS2 and amorphous MoOx. The staggered energy band alignment of MoS2...
Pathogenic infections seriously threaten public health and have been considered as one of the most critical challenges in clinical therapy. Construction of a safe and efficient photothermal antibacterial platform is a promising strategy for treatment of bacterial infections. Considering that high temperature does harm to the normal tissues and cells, herein, a bacteria‐triggered multifunctional hydrogel...
Oxygen diffusivity and surface exchange kinetics underpin the ionic, electronic, and catalytic functionalities of complex multivalent oxides. Towards understanding and controlling the kinetics of oxygen transport in emerging technologies, it is highly desirable to reveal the underlying lattice dynamics and ionic activities related to oxygen variation. In this study, the evolution of oxygen content...
Luminescence enhancement in 2D molecular crystals (2D crystals) is promising for a variety of optical applications, yet the availability is limited because of unclear mechanism and inefficient design strategy of luminescence control. Herein, the room temperature phosphorescence from micron long molecular thin free‐standing 2D crystals of a mono‐cyclometalated Ir(III) complex designed at the water...
The development of high‐efficiency, robust, and available electrode materials for oxygen evolution reaction (OER) and lithium‐ion batteries (LIBs) is critical for clean and sustainable energy system but remains challenging. Herein, a unique yolk–shell structure of Fe2O3 nanotube@hollow Co9S8 nanocage@C is rationally prepared. In a prearranged sequence, the fabrication of Fe2O3 nanotubes is followed...
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