bluuebunny/crossref_metadata_2025_split huggingface dataset:
Boosting the Intelligent Development of Electromagnetic Shielding Polymer Composites by Expert Knowledge
Authors: Cao Wenjing , Li Xiong , Chen Yiyuan , Jin Liyuan , Guo Rina , Song Na , Sun Sheng , Ding Peng 
Published: September 2024

AbstractAn intelligent process for developing electromagnetic interference (EMI) shielding composites is imperative to eliminate the escalating pollution of electromagnetic waves (EMWs). Meanwhile, integrating porous and/or layered structures with polymers is demonstrated as an effective approach. Herein, expert knowledge serves as the guidance of the Simulation‐First Strategy in designing shielding structures that incorporate MXene bubble wrap‐like aerogels (MBa‐bA), characterized by distinct bubble diameters a and densities b. The simulated EMI shielding efficiency (EMI SE) of corresponding MBa‐bA/polyethylene glycol (MBa‐bAP) composites is predicted through the finite element analysis (FEA) simulation. Subsequently, the MBa‐bAP composites are fabricated by template methods and exhibit an outstanding EMI SE of up to 83.1 dB and an ultrahigh SE of absorption (SEA) of 75.1 dB in X band at a = 10 µm and b = 0.50, perfectly aligning with the simulation outcomes. Combined with macro‐scale FEA simulation and experimental evidence, the pronounced EMWs attenuation effect, heat storage/release, and mechanical performances of MBa‐bAP composites are unequivocally substantiated. Based on these, this work proves the feasibility of the intelligent development strategy and provides a research basis for developing advanced EMI shielding materials directed by expert knowledge.
Challenges and Progress in Rechargeable Magnesium‐Ion Batteries: Materials, Interfaces, and Devices
Authors: Wang Dong , Zhang Zhenyu , Hao Yue , Jia Hongxing , Shen Xing , Qu Baihua , Huang Guangsheng , Zhou Xiaoyuan , Wang Jingfeng , Xu Chaohe , Pan Fusheng 
Published: September 2024

AbstractRechargeable magnesium‐ion batteries (RMBs) have garnered increasing research interest in the field of post‐lithium‐ion battery technologies owing to their potential for high energy density, enhanced safety, cost‐effectiveness, and material resourcefulness. Despite substantial advancements in RMB research, a number of intrinsic challenges remain unresolved, such as the strong Coulombic interaction between Mg2+ and the host crystal structure of cathode materials, sluggish Mg2+ diffusion kinetic, poor electrolyte compatibility, and the formation of passivation films on the Mg anode interface. These issues hinder the commercial applications of RMBs. This review provides a comprehensive overview of the progress in key areas of RMB research, including representative magnesium‐ion storage cathode/anode materials and magnesium‐ion conducting electrolytes. Additionally, recent developments in electrode‐electrolyte interface regulations and pouch‐cell fabrication are outlined, highlighting current challenges and the implementation of effective solutions. Finally, future research directions are proposed to guide the development of high‐performance RMBs with practical applications.
An Unusual Application of Multifunctional Nanozyme Derived from COF: Augmenting Chemoimmunotherapy while Attenuating Cardiotoxicity
Authors: Lv Wenxin , Jiang Guangwei , Lin Xiaojun , Qian Min , Huang Rong , Li Zhichao , Liu Hui , Lin Dan , Wang Yi 
Published: September 2024

AbstractEnhancing therapeutic efficacy while reducing the adverse effects of drugs is crucial in cancer treatments. In this study, nitrogen‐doped carbon nanospheres are synthesized with variable enzymatic activities through the pyrolysis of a covalent organic framework (COF). These nanospheres show increased peroxidase (POD) and oxidase (OXD) activities in the tumor microenvironment, generating reactive oxygen species (ROS) that help eliminate tumor cells. Under normal conditions, they display catalase (CAT) and superoxide dismutase (SOD) activities, promoting antioxidative protection. Their porous structure and π–π/hydrophobic interactions allow for the loading of the chemotherapeutic agent doxorubicin (DOX). The nanospheres are then enveloped by tumor cell membranes, stabilizing the drug load and enabling targeted drug delivery with pH‐sensitive release. This targeted system induces ferroptosis in tumor cells and activates a strong anti‐tumor immune response, leading to enhanced immunotherapy for breast cancer and reduced tumor metastasis to the lungs. Importantly, the varied enzymatic activities of the nanomedicine system help mitigate the cardiotoxicity of DOX chemotherapy, improving cancer treatment while minimizing side effects. This approach introduces a nano‐enzyme drug system with distinctive activities and innovative preparation, setting a new standard for efficient, low‐toxicity cancer therapy.
Integrating Multiple Strategies Using Biotechnology to Design High‐Performance Electrocatalysts for Hydrogen and Oxygen Evolution
Authors: Ge Lin , Liu Chang , Xue Tingting , Kang Yiyang , Sun Yining , Chen Yuxi , Wu Jiajie , Teng Kai , Li Lei , Qu Qing 
Published: September 2024

AbstractCombining multiple design strategies often enhances catalyst performance but usually comes with high costs and low reproducibility. A technique that enhances catalyst performance in multiple strategies is urgently needed. Herein, a novel bioregulation technique is introduced, allowing simultaneous control over morphology, particle size, doping, interface engineering, and electronic properties. Bioregulation technique utilizes the soluble extracellular polymer from Aspergillus niger as a templating agent to construct high‐performance catalysts for hydrogen and oxygen evolution reaction (HER and OER). This technique controls catalyst morphology, introduces biological N and S doping, and regulates the electronic structure of the catalyst surface. Biomolecule modification enhances surface hydrophilicity, and the nanostructure increases surface roughness and gas‐release efficiency. Theoretical calculations show that the bioregulation technique shortens the d/p‐band center, optimizing reaction intermediate adsorption and desorption. The Bio‐Pt/Co3O4 catalyst with trace Pt on the surface, designed with these strategies, achieves HER (η10 of 42 mV), OER (η10 of 221 mV), and overall water‐splitting performance (1.51 V at 10 mA cm−2), maintaining stability for over 50 h, outperforming most Pt‐based catalysts. Notably, using spent lithium‐ion battery cathodes leachate, rich in Co2⁺, successfully replicates the experiment. This approach holds promise as a mainstream method for synthesizing high‐performance materials in the future.
Template‐Sacrificing Synthesis of Asymmetrically Coordinated Zn Single‐Atom Sites for High‐Performance Sodium–Sulfur Batteries
Authors: Zheng Fangcai , Chen Fangsheng , Li Zhiqiang , Yao Ge , Dong Shuting , Wei Lingzhi , Chen Qianwang , Wang Changlai , Wang Hui 
Published: September 2024

AbstractMetal single‐atom catalysts (SACs) are extensively investigated to accelerate the sulfur redox kinetics in room‐temperature sodium─sulfur (Na─S) batteries. Nevertheless, the influence of the structure symmetry of SACs center on the electrocatalytic mechanism and the precise pathway in which single‐atom active sites facilitate sodium polysulfides (Na2Sn) conversion remain unknown. To enable controlled construction of highly active single‐atom configuration, herein, Zn SACs with an asymmetrical Zn─N3O configuration are designed for sodium polysulfides conversion. Both theoretical and experimental explorations reveal that the Zn─N3O single‐atom center displays higher electrocatalytic activity for polysulfides conversion than the Zn─N4 single‐atom center. The N/O co‐coordination induces the localized charge at Zn single‐atom center, which strengthens the d‐p hybridization with Na2Sn and stretches Na─S bond length of Na2Sn, thus accelerating the sulfur redox reaction kinetics. Consequently, the as‐assembled Na─S batteries achieve a high capacity of 1016 mAh g−1 at 1.0 C with a capacity decay of 0.0186% per cycle over 1000 cycles. This work uncovers the subtle relationship between the electrocatalytic activity of species conversion and the local coordination environment of SACs, and offers a guidance for the design of efficient asymmetrical SACs for different catalysis applications.
SnS‐Facilitated ZnAlSnO‐Based Fully Optically Modulated Artificial Synaptic Device for Image Processing
Authors: Yang Ruqi , Hu Dunan , Chen Qiujiang , Wang Zihan , Lu Bin , Ye Zhizhen , Li Xifeng , Lu Jianguo 
Published: September 2024

AbstractOptical synapses offer a promising solution to the high energy consumption of von Neumann architectures. Despite significant research, existing photoconductivity modulation methods are typically unidirectional, and inhibitory behavior still depends on electrical stimulation. To address this, a two‐terminal planar fully optically modulated synapse device based on a ZnAlSnO/SnS heterostructure, demonstrating bidirectional optical response is presented. This device exhibits an excitatory postsynaptic current (EPSC) when exposed to 370 nm UV light and generates an inhibitory postsynaptic current (IPSC) under 630 nm red light. Continuous potentiation and depression stimuli reveals the stability of fully optically modulated artificial synapses. Leveraging its fully optically modulated conductance, a three‐layer artificial neural network is implemented for handwritten digit and clothing recognition, achieving accuracies of 91.12% and 78.22%, respectively. Additionally, based on its unique electrical response to UV light pulse, the development process of the Polaroid camera is well simulated. This work not only enriches the content of optical synapses, but also contributes to advancements in artificial intelligence, brain‐like computing, and image‐processing technologies.
Radial Egg White Hydrogel Releasing Extracellular Vesicles for Cell Fate Guidance and Accelerated Diabetic Skin Regeneration
Authors: Ma Yuan , Wang Xinhui , Huang Xiaoqi , He Yu , Su Ting , Niu Xingtang , Gao Jianhua , Lu Feng , Chang Qiang 
Published: September 2024

AbstractTopology and bioactive molecules are crucial for stimulating cellular and tissue functions. To regulate the chronic wound microenvironment, mono‐assembly technology is employed to fabricate a radial egg white hydrogel loaded with lyophilized adipose tissue‐extracellular vesicles (radial EWH@L‐EVs). The radial architecture not only significantly modified the gene expression of functional cells, but also achieved directional and controlled release kinetics of L‐EVs. Through the synergy of topographical and inherent bioactive cues, radial EWH@L‐EVs effectively reduced intracellular oxidative stress and promoted the polarization of macrophages toward an anti‐inflammatory phenotype during the inflammatory phase. Afterward, radial EWH@L‐EVs facilitated the centripetal migration and proliferation of fibroblasts and endothelial cells as the wound transitioned to the proliferative phase. During the latter remodeling phase, radial EWH@L‐EVs accelerated the regeneration of granulation tissue, angiogenesis, and collagen deposition, thereby promoting the reorganization chronic wound. Compared with the gold standard collagen scaffold, radial EWH@L‐EVs actively accommodated the microenvironment via various functions throughout all stages of diabetic wound healing. This can be attributed to the orientation of topological structures and bioactive molecules, which should be considered of utmost importance in tissue engineering.
Flexible Pressure, Humidity, and Temperature Sensors for Human Health Monitoring
Authors: Li Jiaqi , Fang Zhengping , Wei Dongsong , Liu Yan 
Published: September 2024

AbstractThe rapid advancements in artificial intelligence, micro‐nano manufacturing, and flexible electronics technology have unleashed unprecedented innovation and opportunities for applying flexible sensors in healthcare, wearable devices, and human–computer interaction. The human body's tactile perception involves physical parameters such as pressure, temperature, and humidity, all of which play an essential role in maintaining human health. Inspired by the sensory function of human skin, many bionic sensors have been developed to simulate human skin's perception to various stimuli and are widely applied in health monitoring. Given the urgent requirements for sensing performance and integration of flexible sensors in the field of wearable devices and health monitoring, here is a timely overview of recent advances in pressure, humidity, temperature, and multi‐functional sensors for human health monitoring. It covers the fundamental components of flexible sensors and categorizes them based on different response mechanisms, including resistive, capacitive, voltage, and other types. Specifically, the application of these flexible tactile sensors in the area of human health monitoring is highlighted. Based on this, an extended overview of recent advances in dual/triple‐mode flexible sensors integrating pressure, humidity, and temperature tactile sensing is presented. Finally, the challenges and opportunities of flexible sensors are discussed.
Nanomechanical Crystalline AlN Resonators with High Quality Factors for Quantum Optoelectromechanics
Authors: Ciers Anastasiia , Jung Alexander , Ciers Joachim , Nindito Laurentius Radit , Pfeifer Hannes , Dadgar Armin , Strittmatter André , Wieczorek Witlef 
Published: September 2024

AbstractHigh‐quality factor (Qm) mechanical resonators are crucial for applications where low noise and long coherence time are required, as mirror suspensions, quantum cavity optomechanical devices, or nanomechanical sensors. Tensile strain in the material enables the use of dissipation dilution and strain engineering techniques, which increase the mechanical quality factor. These techniques have been employed for high‐Qm mechanical resonators made from amorphous materials and, recently, from crystalline materials such as InGaP, SiC, and Si. A strained crystalline film exhibiting substantial piezoelectricity expands the capability of high‐Qm nanomechanical resonators to directly utilize electronic degrees of freedom. In this work, nanomechanical resonators with Qm up to 2.9 × 107 made from tensile‐strained 290 nm‐thick AlN are realized. AlN is an epitaxially‐grown crystalline material offering strong piezoelectricity. Nanomechanical resonators that exploit dissipation dilution and strain engineering to reach a Qm × fm‐product approaching 1013 Hz at room temperature are demonstrated. A novel resonator geometry is realized, triangline, whose shape follows the Al–N bonds and offers a central pad patterned with a photonic crystal. This allows to reach an optical reflectivity above 80% for efficient coupling to out‐of‐plane light. The presented results pave the way for quantum optoelectromechanical devices at room temperature based on tensile‐strained AlN.
Enhancing Spin–Orbit Coupling in an Indolocarbazole Multiresonance Emitter by a Sulfur‐Containing Peripheral Substituent for a Fast Reverse Intersystem Crossing
Authors: Fan Tianjiao , Liu Qiwei , Zhang Hai , Wang Xuewen , Zhang Dongdong , Duan Lian 
Published: September 2024

AbstractA fast reverse intersystem crossing (RISC) remains an ongoing pursuit for multiresonance (MR) emitters but faces formidable challenges, particularly for indolocarbazole (ICz) derived ones. Here, heavy‐atom effect is introduced first to construct ICz‐MR emitter using a sulfur‐containing substitute, simultaneously enhancing both spin–orbit and spin–vibronic coupling to afford a fast RISC with a rate of 1.2 × 105 s−1, nearly one order of magnitude higher than previous maximum values. The emitter also exhibits an extremely narrow deep‐blue emission peaking at 456 nm with full‐width at half‐maxima of merely 12 nm and a photoluminescence quantum yield of 92%. Benefiting from its efficient triplet upconversion capability, this emitter achieves not only a high maximum external quantum efficiency (EQE) of 31.1% in organic light‐emitting diodes but also greatly alleviates efficiency roll‐off, affording record‐high EQEs of 29.9% at 1000 cd m−2 and 18.7% at 5000 cd m−2 among devices with ICz‐MR emitters.
Multifunctional Copper‐Phenolic Nanopills Achieve Comprehensive Polyamines Depletion to Provoke Enhanced Pyroptosis and Cuproptosis for Cancer Immunotherapy
Authors: Zhu Guoqing , Xie Yulin , Wang Junrong , Wang Man , Qian Yanrong , Sun Qianqian , Dai Yunlu , Li Chunxia 
Published: September 2024

AbstractThe overexpression of polyamines in tumor cells contributes to the establishment of immunosuppressive microenvironment and facilitates tumor growth. Here, it have ingeniously designed multifunctional copper‐piceatannol/HA nanopills (Cu‐Pic/HA NPs) that effectively cause total intracellular polyamines depletion by inhibiting polyamines synthesis, depleting intracellular polyamines, and impairing polyamines uptake, resulting in enhanced pyroptosis and cuproptosis, thus activating a powerful immune response to achieve anti‐tumor therapy. Mitochondrial dysfunction resulting from overall intracellular polyamines depletion not only leads to the surge of copper ions in mitochondria, thereby causing the aggregation of toxic proteins to induce cuproptosis, but also triggers the accumulation of reactive oxygen species (ROS) within mitochondria, which further upregulates the expression of zDHHC5 and zDHHC9 to promote the palmitoylation of gasdermin D (GSDMD) and GSDMD‐N, ultimately inducing enhanced pyroptosis. Then the occurrence of enhanced pyroptosis and cuproptosis is conductive to remodel the immunosuppressive tumor microenvironment, thus activating anti‐tumor immune responses and ultimately effectively inhibiting tumor growth and metastasis. This therapeutic strategy of enhanced pyroptosis and cuproptosis through comprehensive polyamines depletion provides a novel template for cancer immunotherapy.
A Click Chemistry Strategy Toward Spin‐Polarized Transition‐Metal Single Site Catalysts for Dynamic Probing of Sulfur Redox Electrocatalysis
Authors: Chen Weijie , Yu Yue , Du Yu , Wang Yu , Zhao Yan , Guo Kai , Yuan Pengfei , Zhang Jia‐Nan , Qu Gan 
Published: September 2024

AbstractCatalytic conversion of lithium polysulfides (LiPSs) is a crucial approach to enhance the redox kinetics and suppress the shuttle effect in lithium–sulfur (Li–S) batteries. However, the roles of a typical heterogenous catalyst cannot be easily identified due to its structural complexity. Compared with the distinct sites of single atom catalysts (SACs), each active site of single site catalysts (SSCs) is identical and uniform in their spatial energy, binding mode, and coordination sphere, etc. Benefiting from the well‐defined structure, iron phthalocyanine (FePc) is covalently clicked onto CuO nanosheet to prepare low spin‐state Fe SSCs as the model catalyst for Li–S electrochemistry. The periodic polarizability evolution of Fe‐N bonding is probed during sulfur redox reaction by in situ Raman spectra. Theoretical analysis shows the decreased d‐band center gap of Fe (Δd) and delocalization of dxz/dyz after the axial click confinement. Consequently, Li–S batteries with Fe SSCs exhibit a capacity decay rate of 0.029% per cycle at 2 C. The universality of this methodological approach is demonstrated by a series of M SSCs (M = Mn, Co, and Ni) with similar variation of electronic configuration. This work provides guidance for the design of efficient electrocatalysis in Li–S batteries.
A Closed‐Loop Nanosystem Based on Piezoelectric Sensor and Pd‐Nanoshell Photothermal Ablation for Renal Denervation to Treat Hypertension
Authors: Liu Chengzhe , Wang Chenlu , Huang Mingkun , Zhang Zizhuo , Qiao Jiaming , Han Xinrui , Wang Jiale , Zu Qinxuan , Zhou Xiaoya , Jiang Hong , Zhou Liping , Guo Shishang , Zeng Mengqi , Fu Lei , Yu Lilei 
Published: September 2024

AbstractRenal sympathetic nerves play a crucial role in the pathogenesis of hypertension, and renal denervation (RDN) is a new solution for patients with refractory hypertension. However, current RDN techniques show inconsistent results in clinical application probably owing to incomplete endovascular ablation of the sympathetic nerves and a lack of measures to localize and assess efficacy. In this study, a closed‐loop RDN system consisting of a sensing unit with a piezoelectric thin‐film sensor (PTFS) and a treatment unit with a hollow Pd nanoparticle shell (PdNPS) with a diameter of 202.0 nm for photothermal neural ablation is constructed. The PTFS can monitor and collect arterial pulsation and blood pressure (BP) and direct PdNPS to maximize RDN. PdNPS maintains a local temperature of 58–62 °C under near‐infrared‐II irradiation (1,064 nm) to achieve effective RDN within a range of 90–120 s treatment window. Photothermal ablation significantly inhibits the activities of renal sympathetic nerves post‐procedure and after one month and reduces the elevation of BP by > 50%. The novel closed‐loop system enables safe and efficient targeting, dynamic monitoring, and ablation of the renal sympathetic nerves. This closed‐loop system provides a new strategy for RDN technology and even for treating sympathetic nerve‐related chronic diseases.
Intramolecular Through‐Space Charge‐Transfer Effect for Achieving Room‐Temperature Phosphorescence in Amorphous Film
Authors: Dou Dehai , Zhou Xin , Wang Tian , Yang Qiqi , Tan Xiao , Ling Zhitian , Manz Marvin , Liu Xiaomin , Wetzelaer Gert‐Jan A. H. , Li Xiaosong , Baumgarten Martin , Blom Paul W. M. , Li Yungui 
Published: September 2024

AbstractOrganic emitters that exhibit room‐temperature phosphorescence (RTP) in neat films have application potential for optoelectronic devices, bio‐imaging, and sensing. Due to molecular vibrations or rotations, the majority of triplet excitons recombine rapidly via non‐radiative processes in purely organic emitters, making it challenging to observe RTP in amorphous films. Here, a chemical strategy to enhance RTP in amorphous neat films is reported, by utilizing through‐space charge‐transfer (TSCT) effect induced by intramolecular steric hindrance. The donor and acceptor groups interact via spatial orbital overlaps, while molecular motions are suppressed simultaneously. As a result, triplets generated under photo‐excitation are stabilized in amorphous films, contributing to phosphorescence even at room temperature. The solvatochromic effect on the steady‐state and transient photoluminescence reveals the charge‐transfer feature of involved excited states, while the TSCT effect is further experimentally resolved by femtosecond transient absorption spectroscopy. The designed luminescent materials with pronounced TSCT effect show RTP in amorphous films, with lifetimes up to ≈40 ms, comparable to that in a rigid polymer host. Photoluminescence afterglow longer than 3 s is observed in neat films at room temperature. Therefore, it is demonstrated that utilizing intramolecular steric hindrance to stabilize long‐lived triplets leads to phosphorescence in amorphous films at room temperature.