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Flexible Block Copolymer Metamaterials
In article number 2307487, Yeo‐Wan Chiang and co‐workers developed dual extractable nanocomposites capable of creating a novel hollow gyroid (HG) featuring maximum porosity, low reflectivity, and high specific reduced modulus. Owing to the highly interconnected and ordered nanonetworks, the pioneering HG is promising as a nanoreactor for developing ultra‐lightweight...
By utilizing bicontinuous and nanoporous ordered nanonetworks, such as double gyroid (DG) and double diamond (DD), metamaterials with exceptional optical and mechanical properties can be fabricated through the templating synthesis of functional materials. However, the volume fraction range of DG in block copolymers is significantly narrow, making it unable to vary its porosity and surface‐to‐volume...
Herein, a hybrid substrate for surface‐enhanced Raman scattering (SERS) is fabricated, which couples localized surface plasmon resonance (LSPR), charge transfer (CT) resonance, and molecular resonance. Exfoliated 2D TiS2 nanosheets with semimetallic properties accelerate the CT with the tested analytes, inducing a remarkable chemical mechanism enhancement. In addition, the LSPR effect is coupled with...
Aqueous rechargeable Zn metal batteries (ARZBs) are extensively studied recently because of their low‐cost, high‐safety, long lifespan, and other unique merits. However, the terrible ion conductivity and insufficient interfacial redox dynamics at low temperatures restrict their extended applications under harsh environments such as polar inspections, deep sea exploration, and daily use in cold regions...
The notorious limitation of conventional surgical excision of primary tumor is the omission of residual and occult tumor cells, which often progress to recurrence and metastasis, leading to clinical treatment failure. The therapeutic vaccine is emerging as a promising candidate for dealing with the issue of postsurgical tumor residuals or nascent metastasis. Here, a flexible and modularized nanovaccine...
The sluggish redox kinetics and shuttle effect seriously impede the large application of room‐temperature sodium–sulfur (RT Na–S) batteries. Designing effective catalysts into cathode material is a promising approach to overcome the above issues. However, considering the multistep and multiphase transformations of sulfur redox process, it is impractical to achieve the effective catalysis of the entire...
Micro‐Supercapacitors
In article number 2207634, Hui Ying Yang and co‐workers develop an innovative stretchable micro‐supercapacitor with excellent resistance to freezing. Using digital light processing (DLP) 3D printing technology, an interdigital electrode with octet‐truss lattice structure has been designed to enhance the electrochemical performance of the micro‐supercapacitor. It is anticipated...
Recently, stretchable micro‐supercapacitors (MSCs) that can be easily integrated into electronic devices have attracted research and industrial attentions. In this work, three‐dimensional (3D) stretchable MSCs with an octet‐truss electrode (OTE) design have been demonstrated by a rapid digital light processing (DLP) process. The 3D‐printed electrode structure is beneficial for electrode‐electrolyte...
An atomically thin TaSe2 sample, approximately containing two to three layers of TaSe2 nanosheets with a diameter of 2.5 cm is prepared here for the first time and applied on the detection of various Raman‐active molecules. It achieves a limit of detection of 10−10 m for rhodamine 6G molecules. The excellent surface‐enhanced Raman scattering (SERS) performance and underlying mechanism of TaSe2 are...
Zinc metal is an ideal candidate for aqueous rechargeable batteries due to its high theoretical capacity and natural abundance. However, its commercialization is inevitably challenged by several critical factors such as dendrite growth and parasitic side‐reactions, leading to low coulombic efficiency and a limited lifespan. Herein, a modified Zn foil with a zincophilic ZnSe layer deposited by a simple...
Detrimental lithium polysulfide (LiPS) shuttle effects and sluggish electrochemical conversion kinetics in lithium‐sulfur (Li‐S) batteries severely hinder their practical application. Separator modification has been extensively investigated as an effective strategy to address above issues. Nevertheless, in the case of functional separators, how to effectively block the LiPSs from diffusion while enabling...
Constructing an architectural host is demonstrated to be an effective strategy for long‐life lithium metal anodes (LMAs). Herein, an integrated 3D host for stable and ultrahigh‐rate LMAs is developed by a binary highly conductive network of 2D reduced graphene oxide (rGO) and 1D carbon nanofibers (CNF) anchored with 0D ultrasmall MgZnO nanoparticles (MgZnO/CNF‐rGO). A facile net‐fishing strategy is...
Engineering intriguing electrode with exceptional kinetics behaviors is imperative for boosting sodium storage systems. Herein, the uniform nanoframes are threaded by the interwoven carbon nanotube (CNT) conductive network to form an ingenious beads‐on‐a‐string structured NiFePBA nanoframe/CNT (NFPB‐NF/CNT) cathode and the corresponding derivative NiFeSe nanoframe/CNT (NFS‐NF/CNT) anode. NFPB‐NF/CNT...
The viable Li metal anodes (LMAs) are still hampered by the safety concerns resulting from fast Li dendrite growth and huge volume expansion during cycling. Herein, carbon nanofiber matrix anchored with MgZnO nanoparticles (MgZnO/CNF) is developed as a flexible triple‐gradient host for long cycling LMAs. The superlithiophilic MgZnO nanoparticles significantly increase the wettability of CNF for fast...
In article number 2001992, Ying Yang and co‐workers design a triple‐gradient host for long cycling lithium metal anodes at ultrahigh current density. In the graphic, the wizard on a magic broom and the flying wild geese guided by color winds indicate the fast movement of rectified Li‐ion flux repeatedly plated/stripped on the host represented by the castle on the clouds.
The polysulfide shuttle effect and sluggish reaction kinetics hamper the practical applications of lithium–sulfur (Li–S) batteries. Incorporating a functional interlayer to trapping and binding polysulfides has been found effective to block polysulfide migration. Furthermore, surface chemistry at soluble polysulfides/electrolyte interface is a crucial step for Li–S battery in which stable cycling...
Desalination devices such as capacitive deionization (CDI) have been developed for many years as an approach to relief freshwater shortage. However, due to the limitation of physical adsorption capacity of CDI, the salt removal capacity is unable to reach high value. To enhance the desalination capacity effectively, battery materials are employed to fabricate a dual‐ion electrochemical deionization...
The emerging phosphate species on the surface or near‐surface of electrode materials are versatile and have an intriguing ability for dramatically enhanced electrochemical performance. Unfortunately, the distribution/dispersion of phosphate species still keeps at levels on the exterior not within the interior surface of materials, and the micro‐/nanoscale tuning is commonly rarely concerned and its...
In this contribution, a novel sulfate‐ion‐controlled synthesis is developed to fabricate freestanding nickel hydroxide nanoarrays on Ni substrate. As an inorganic morphology‐controlled agent, SO42− ions play a critical role in controlling the crystal growth and the nanoarray morphologies, by modulating the growth rate of adsorbed crystal facets or inserting into the metal hydroxide interlayers. By...
Most chemotherapeutic drugs and their nanomedicine formulations exert anticancer activity by inducing cancer cell apoptosis. However, cancer cells inherently have and acquire many antiapoptosis mechanisms, causing cancer drug resistance and poor prognoses in patients. Herein, a potent paraptosis‐inducing nanomedicine is reported that causes quick nonapoptotic death of cancer cells, overcoming apoptosis‐based...
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