bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sandwich‐Like CNTs/Carbon@Si3N4 Porous Foam for Temperature‐Insensitive Electromagnetic Wave Absorption
Authors: Xu Hailong , Zhan Haoyang , Xu Zhijian , Jing Chenyang , Chen Qiang , Zhu Meng , Kong Luo , Fan Xiaomeng , Qing Yuchang , Wen Shifeng , Wang Chunhai , Luo Fa 
Published: January 2025

AbstractDespite considerable efforts to tune the morphology and composition from the macroscopic level to the nanoscale level of electromagnetic wave‐absorbing materials (EWMs), achieving strong and wide‐bandwidth absorption under a temperature‐variant environment remains extremely difficult due to the temperature‐sensitive electromagnetic‐absorbing mechanisms that involve dipole polarization and conductive loss. Here, by integrating the highly conductive carbon nanotubes (CNTs) networks and the temperature‐stable silicon nitride (Si3N4) protective layer, a CNTs/amorphous carbon@Si3N4 (C‐CNT‐Si3N4) porous foam composed of sandwich‐like Si3N4/C‐CNT/Si3N4 strut, which exhibits excellent temperature‐insensitive electromagnetic‐absorbing properties from room temperature to 600 °C, is demonstrated. To be specific, the value of the minimum reflection loss is always lower than −50 dB, and a temperature‐insensitive effective absorbing bandwidth covering the whole X band throughout a thickness range of 4.8–6.1 mm is achieved. The superior temperature‐insensitive electromagnetic‐absorbing property is due to the synergistic effects of irregular polarization loss derived from lattice vacancies and heterogeneous interface, slightly increased conductive loss derived from decreasing carrier mobility, and increasing carrier concentration under a rising temperature environment.
Over 19.2% Efficiency of Layer‐By‐Layer Organic Photovoltaics by Ameliorating Exciton Dissociation and Charge Transport
Authors: Tian Hongyue , Zhou Hang , Zhang Lu , Xu Wenjing , Gong Ruifeng , Ni Yuheng , Jeong Sang Young , Zhu Xixiang , Woo Han Young , Ma Xiaoling , Lu Lifang , Zhang Fujun 
Published: January 2025

AbstractLayer‐by‐layer (LbL) organic photovoltaics (OPVs) are fabricated with polymer PM1 as donor and small molecule L8‐BO as acceptor by employing sequential spin‐coating technology. The small molecule BTP‐eC9 and polymer PTAA are deliberately selected for individually incorporating into PM1 layer and L8‐BO layer, resulting in the power conversion efficiency (PCE) increased from 18.22% to 19.23%. The improvement of performance is attributed to the synergistically increased short circuit current density (JSC) of 27.78 mA cm−2 and fill factor (FF) of 78.23%. The introduction of BTP‐eC9 into PM1 layer can promote the photogenerated exciton dissociation, especially for the excitons near the anode. Meanwhile, molecular crystallinity of PM1 is also enhanced by incorporating appropriate BTP‐eC9 into PM1 layer. The incorporation of PTAA into L8‐BO layer can provide hole transport channels to effectively improve the transport of holes generated by the self‐dissociation of L8‐BO, resulting in the enhanced FFs from 77.40% to 78.23%. The synergistic effects of BTP‐eC9 and PTAA incorporation in donor and acceptor layers result in a 19.23% PCE of the optimized LbL‐OPVs. This work demonstrates that there is great room to hierarchically optimize donor and acceptor layers for achieving highly efficient LbL‐OPVs.
Unlocking the Potential: Na4Fe3(PO4)2(P2O7) Supporting the Innovation of Commercial Sodium‐Ion Batteries
Authors: Liu Cong , Zhang Zhi , Liao Huanyi , Jiang Yumeng , Zheng Yifan , Li Zhongxi , Gao Yihua 
Published: January 2025

AbstractSodium‐ion batteries (SIBs) are highly anticipated as an efficient energy storage solution in addressing contemporary energy challenges. The pursuit of high‐performance cathode materials is critical for the commercialization of SIBs. Among the contenders, Na4Fe3(PO4)2(P2O7) (NFPP) is one of the most promising commercial cathode materials due to its stable structure framework and excellent sodium storage capability. Although the research on NFPP has achieved great progress, especially in the last 10 years, the timely and dedicated summary of the research progress and prospect of this rising star of cathode materials for SIBs has not been reported. This review provides a comprehensive overview of the advancement and prospect of NFPP as commercial cathode material in SIBs. In this review, the crystal structure and sodium storage mechanism of NFPP are examined first. Then, different proposed preparation methods of NFPP have been elaborated in the following section. After that, the optimization strategies are discussed to enhance the sodium storage performance of NFPP cathode material in detail. At last, the gap between current research and the practical application of NFPP is highlighted, and possible future research directions for the commercialization of NFPP cathode material in SIBs are proposed.
A Biomimetic Sweeping Microrobot for Active Therapy of Ulcerative Colitis
Authors: Liang Haiying , Jiang Jiamiao , Miao Jiajun , Sun Jia , Qin Hanfeng , Zhang Xiaoting , Zhang Lishan , Tian Hao , Ye Yicheng , Gao Junbin , Wang Fei , Han Shuai , Peng Fei , Tu Yingfeng 
Published: January 2025

AbstractOverproduction of pathogenic cell‐free DNA (cfDNA) and reactive oxygen species (ROS) plays crucial roles in the onset and perpetuation of ulcerative colitis (UC). Inspired by sweeping robots, a magnesium@polylactic acid‐glycolic acid copolymer@polyethylenimine (Mg@PLGA@PEI) microswimmer capable of cleaning off deleterious disease triggers along its path of progress is designed. Mg@PLGA@PEI is successfully synthesized by adopting a core‐shell structure with a small opening which allows for Mg‐water reaction. The distinctive motility performance resulting from sustained detachment of the produced hydrogen not only contributes to strengthened hydrogen diffusion concomitant with potentiated ROS neutralization, but also facilitates the contacting probability with microenvironmental cfDNA and thus enhances the DNA binding efficiency. By integrating these merits, the developed Mg@PLGA@PEI confers desirable curative efficacy in a classical DSS‐induced acute colitis mouse model. Enema administration of Mg@PLGA@PEI microswimmers substantially alleviates the manifestations related to UC, as evidenced by the body weight recovery, colon length retention, colon tissue protection, and attenuated intestinal inflammation, which is attributed to the active scavenging of cfDNA and ROS. This work provides a paradigm for a drug‐free strategy competent in spontaneously eliminating causative triggers with minimal side effects, which presents a promising alternative for the active therapy of UC or other cfDNA‐ and ROS‐related diseases in the clinic.
Heterodimeric Photosensitizer as Radical Generators to Promoting Type I Photodynamic Conversion for Hypoxic Tumor Therapy
Authors: Xiong Tao , Chen Yingchao , Peng Qiang , Zhou Xiao , Li Mingle , Lu Sheng , Chen Xiaoqiang , Fan Jiangli , Wang Lei , Peng Xiaojun 
Published: January 2025

AbstractPhotodynamic therapy (PDT) using traditional type II photosensitizers (PSs) has been limited in hypoxic tumors due to excessive oxygen consumption. The conversion from type II into a less oxygen‐dependent type I PDT pathway has shown the potential to combat hypoxic tumors. Herein, the design of a heterodimeric PS, NBSSe, by conjugating a widely used type I PS NBS and a type II PS NBSe via molecular dimerization, achieving the aggregation‐regulated efficient type I photodynamic conversion for the first time is reported. Electrochemistry characterizations and theoretical calculations elucidate that NBSSe tends to form a S+·/Se−· radical pair via intramolecular electron transfer in the co‐excited NBSSe* aggregate, realizing 7.25‐fold O2−· generation compared to NBS and 80% suppression of 1O2 generation compared to NBSe. The enhanced O2−· generation of NBSSe enables excellent anti‐hypoxia PDT efficiency and inhibition of pulmonary metastasis. Additionally, the incorporation of electron‐rich bovine serum albumin accelerates the recycling of cationic PS radical NBSSe+·, further boosting photostability and O2−· generation. The resultant BSA@NBSSe nanoparticles demonstrate successful tumor‐targeting PDT capability. This work provides an appealing avenue to convert ROS generation from the type II pathway to the type I pathway for efficient cancer phototherapy in hypoxia.
PerC B‐Cells Activation via Thermogenetics‐Based CXCL12 Generator for Intraperitoneal Immunity Against Metastatic Disseminated Tumor Cells
Authors: Yin Zhiwei , Li Ling , Zhang Qiang , Zhang Xiaoshen , Shi Rui , Xia Xin , Wang Zhaoxin , Li Shengkai , Ye Mao , Liu Yanlan , Tan Weihong , Chen Zhuo 
Published: January 2025

AbstractDuring cancer peritoneal metastasis (PM), conventional antigen‐presenting cells (dendritic cells, macrophages) promote tumorigenesis and immunosuppression in peritoneal cavity. While intraperitoneal immunotherapy (IPIT) has been used in clinical investigations to relieve PM, the limited knowledge of peritoneal immunocytes has hindered the development of therapeutic IPIT. Here, a dendritic cell‐independent, next‐generation IPIT is described that activates peritoneal cavity B (PerC B) cell subsets for intraperitoneal anti‐tumor immunity via exogenous antigen presentation. The PerC B‐cell‐involved IPIT framework consists of an isotropic‐porous, cell‐fitting, thermogenetics‐based CXCL12 generator. Such nanoscale thermal‐confined generator can programmatically fine‐tune the expression of CXCL12 to recruit disseminated tumor cells (DTCs) through CXCL12‐CXCR4 axis while avoiding cytokine storm, subsequently release DTC‐derived antigen to trigger PerC B‐cell‐involved immunity. Notably, antigen‐presenting B‐cell cluster, expressing the regulatory signaling molecules Ptpn6, Ms4a1, and Cd52, is identified playing the key role in the IPIT via single‐cell RNA sequencing. Moreover, such IPIT availably assuages peritoneal effusion and PM in an orthotopic gastric cancer and metastatic model. Overall, this work offers a perspective on PerC B‐cell‐involved antigen‐presenting in intraperitoneal immunity and provides a configurable strategy for activating anti‐DTC immunity for next‐generation IPIT.
Structural Control of Photoconductivity in a Flexible Titanium‐Organic Framework
Authors: Chinchilla‐Garzón Clara , Galbiati Marta , Misturini Alechania , Gimeno‐Fonquernie Pol , Almora‐Barrios Neyvis , Padial Natalia M. , Martí‐Gastaldo Carlos 
Published: January 2025

AbstractThe soft nature of Metal‐Organic Frameworks (MOFs) sets them apart from other non‐synthetic porous materials. Their flexibility allows the framework components to rearrange in response to environmental changes, leading to different states and properties. The work extends this concept to titanium frameworks, demonstrating control over charge transport in porous molecular crystals. MUV‐35 is a two‐fold catenated framework composed of heterometallic TiMn2 trimers and electron donor 4,4′,4″‐(benzo[1,2‐b:3,4‐b’:5,6‐b″]trithiophene‐2,5,8‐triyl)tribenzoic acid (H3BTTTB) linkers, forming a rare sit‐c net topology that can fold to reduce its volume by ≈40% through a single‐crystal transformation controlled by linker conformation in open, intermediate, and closed states. This process, driven by a free energy difference of ≈300 kJ mol−1, originates from the formation of a continuous network of non‐covalent interactions that force the spontaneous loss of the solvent in the pores of the framework to establish charge transport pathways that afford photocurrents of 2.5 × 10−3 S m−1 under visible light for an ON/OFF ratio (∆R) of four orders of magnitude. This photoconductivity rivals the best conductivity values described for though‐transport conductive MOFs while maintaining a porosity of ≈1.000 m2 g−1.
Influence of Free Space on Lithium Growth Behavior at Open Surfaces and Internal Cracks of Sulfide‐Based Solid Electrolyte
Authors: Ren Shuaiyang , Su Yi , Jiang Weining , Su Yipeng , Zhang Yuegang 
Published: January 2025

AbstractLithium dendrite penetration through solid electrolyte has been the major obstacle for practical sulfide‐based all‐solid‐state lithium metal batteries (ASSLMBs). Herein, a series of tailored model solid cells are designed to investigate the intrinsic lithium growth behavior at open surfaces and internal cracks of sulfide solid electrolyte. It is shown that when plating lithium on the open surface of electrolyte (free space), the lithium exhibits an intrinsic columnar growth behavior perpendicular to the electrolyte surface, preferentially along the (110) crystal axis. When plating lithium within the internal cracks (confined free space), the growth of lithium follows two major modes: 1) Diffusion creep enabled infiltration along the crack side‐wall surface toward the counter electrode, allowing the deposited lithium to cause short circuit without fully filling the crack; 2) Columnar growth perpendicular to the crack side‐wall surface toward the confined free space inside the crack. The extent of lithium ingress into electrolyte under external pressure in the initial state is found to determine the rate of lithium infiltration after applying the current. As a further validation, intact sintered electrolytes with 99% relative density minimize initial lithium ingress, enabling lithium plating at 6.37 mA cm−2 with an areal capacity exceeding 76 mAh cm−2 without short circuit.
Building a Highly Stable Red/Near Infrared Afterglow Library with Highly Branched Structures
Authors: Wang Meng , Liu Xiuxing , Yuan Wentao , Yang Yujie , Zhong Cheng , Wu Boxi , Li Zhen , Li Qianqian 
Published: January 2025

AbstractAchieving organic red/near infrared (NIR) phosphorescence at high temperatures is theoretically challenging because of the severe nonradiative transitions of excited triplet states with low energy gaps. This study realizes bright and persistent red/NIR afterglow with excellent high‐temperature resistance up to 413 K via highly efficient (≈100%) phosphorescence resonance energy transfer (PRET) from rationally designed branched phosphorescence luminogens as energy donors to red/NIR dyes as acceptors, coupled with optimized aggregated structures. According to systematic investigations, the abundant internal cavities formed by the highly branched luminogens in solid states ensure dye loading and space limitation, which can considerably suppress nonradiative transitions at high temperatures, promoting a persistent red/NIR afterglow with excellent stability. Moreover, 16 types of host–guest systems with varied topological structures of branched luminogens and different red/NIR dyes of various sizes confirm the universality of the strategy. This study provides an efficient approach to achieve a highly stable red/NIR afterglow.
Coaxial Direct Ink Writing of Cholesteric Liquid Crystal Elastomers in 3D Architectures
Authors: Ng Alicia , Telles Rodrigo , Riley Katherine S. , Lewis Jennifer A. , Cook Caitlyn C. , Lee Elaine , Yang Shu 
Published: January 2025

AbstractCholesteric liquid crystal elastomers (CLCEs) hold great promise for mechanochromic applications in anti‐counterfeiting, smart textiles, and soft robotics, thanks to the structural color and elasticity. While CLCEs are printed via direct ink writing (DIW) to fabricate free‐standing films, complex 3D structures are not fabricated due to the opposing rheological properties necessary for cholesteric alignment and multilayer stacking. Here, 3D CLCE structures are realized by utilizing coaxial DIW to print a CLC ink within a silicone ink. By tailoring the ink compositions, and thus, the rheological properties, the cholesteric phase rapidly forms without an annealing step, while the silicone shell provides encapsulation and support to the CLCE core, allowing for layer‐by‐layer printing of self‐supported 3D structures. As a demonstration, free‐standing bistable thin‐shell domes are printed. Color changes due to compressive and tensile stresses can be witnessed from the top and bottom of the inverted domes, respectively. When the domes are arranged in an array and inverted, they can snap back to their base state by uniaxial stretching, thereby functioning as mechanical sensors with memory. The additive manufacturing platform enables the rapid fabrication of 3D mechanochromic sensors thereby expanding the realm of potential applications for CLCEs.
Constructing Anion Solvation Microenvironment Toward Durable High‐Voltage Sodium‐Based Batteries
Authors: Zhou Rui , Xu Yan‐Song , Han Chong , Li Yun‐Nuo , Wang Jun , Liang Xiongyi , Jing Tian‐Tian , Liu Rui , Chen Guanhua , Cao Fei‐Fei 
Published: January 2025

AbstractSodium‐based rechargeable batteries are some of the most promising candidates for electric energy storage with abundant sodium reserves, particularly, sodium‐based dual‐ion batteries (SDIBs) perform advantages in high work voltage (≈5.0 V), high‐power density, and potentially low cost. However, irreversible electrolyte decomposition and co‐intercalation of solvent molecules at the electrode interface under a high charge state are blocking their development. Herein, a high‐salt concentration microenvironment is created and proposed by tailoring the solvation structures of charge carriers including both cations and anions, which maintains highly oxidation‐resistant contact ion pairs and ion aggregates and provides a high ion conductivity. The tailored solvation structure makes a great contribution to protecting the graphite cathode from electrolyte oxidation, solvent co‐intercalation, and structural degradation by constructing a robust cathode‐electrolyte interphase with standout electrochemical stability. Based on this, the SDIBs achieved an excellent high‐voltage cycling stability with 81% capacity retention after 10 000 cycles and the battery showed an improved rate performance with 97.4 mAh g−1 maintained at 100 C. It is identified that regulating anion solvation structure is responsible for the stable interface chemistry and enhanced reaction kinetics, which provides deep insight into the compatibility design between the electrolyte and specialized charge storage in electrodes.
Observation of Real‐Time Spin‐Orbit Torque Driven Dynamics in Antiferromagnetic Thin Film
Authors: Cheng Yang , Huang Hanshen , Tang Junyu , Lanier Joseph , Lazareno Katelyn , Chang Hao‐Kai , Chui Shang‐Jui , Yang Chao‐Yao , Yang Fengyuan , Cheng Ran , Wang Kang L. 
Published: January 2025

AbstractIn the burgeoning field of spintronics, antiferromagnetic materials (AFMs) are attracting significant attention for their potential to enable ultra‐fast, energy‐efficient devices. Thin films of AFMs are particularly promising for practical applications due to their compatibility with spin‐orbit torque (SOT) mechanisms. However, studying these thin films presents challenges, primarily due to the weak signals they produce and the rapid dynamics driven by SOT, that are too fast for conventional electric transport or microwave techniques to capture. The time‐resolved magneto‐optical Kerr effect (TR‐MOKE) has been a successful tool for probing antiferromagnetic dynamics in bulk materials, thanks to its sub‐picosecond (sub‐ps) time resolution. Yet, its application to nanometer‐scale thin films has been limited by the difficulty of detecting weak signals in such small volumes. In this study, the first successful observation of antiferromagnetic dynamics are presented in nanometer‐thick orthoferrite films using the pump‐probe technique to detect TR‐MOKE signal. This paper report an exceptionally low damping constant of 1.5 × 10−4 and confirms the AFM magnonic nature of these dynamics through angular‐dependent measurements. Furthermore, it is observed that electrical currents can potentially modulate these dynamics via SOT. The findings lay the groundwork for developing tunable, energy‐efficient spintronic devices, paving the way for advancements in next‐generation spintronic applications.
Lattice‐Strain Engineering of High‐Entropy‐Oxide Nanoparticles: Regulation by Flame Spray Pyrolysis with Ultrafast Quenching
Authors: Luo Lingli , Ju Jie , Wu Yingjie , Wan Xiaowei , Li Wei , Li Yuhang , Jiang Hao , Hu Yanjie , Li Chunzhong 
Published: January 2025

AbstractThe lattice‐strain engineering of high‐entropy‐oxide nanoparticles (HEO‐NPs) is considered an effective strategy for achieving outstanding performance in various applications. However, lattice‐strain engineering independent of the composition variation still confronts significant challenges, with existing modulation techniques difficult to achieve mass production. Herein, a novel continuous‐flow synthesis strategy by flame spray pyrolysis (FSP) is proposed, which air varying flow rates is introduced for fast quenching to alter the cooling rate and control the lattice strain of HEO‐NPs. Experimental results demonstrate that as the flow rate of air increases from 0 L to 24 L min−1, the cooling rate has increased by more than ten times, and the tensile strain of the HEO‐NPs increases by 2.75%. Utilizing the oxygen evolution reaction (OER) activity as an indicator, it is observed that the overpotential to achieve a current density of 10 mA cm−2 is reduced by 25 mV. Importantly, this approach enables the simple and efficient regulation of lattice strain in HEO‐NPs (110 mg min−1). Thus, this study provides a new approach for both the mass production and regulation of lattice strain in HEO‐NPs.
Size‐Controllable High‐Entropy Alloys Toward Stable Hydrogen Production at Industrial‐Scale Current Densities
Authors: Wang Qian , Qin Yao , Xie Jiacheng , Kong Yafen , Sun Qian , Wei Zengxi , Zhao Shuangliang 
Published: January 2025

AbstractEfficient and stable electrocatalytic hydrogen evolution reaction (HER) at high current densities is highly desirable for industrial‐scale hydrogen production, which is yet challenging, because of the electrocatalyst with short lifespans during the acidic HER process. Here, a controllable preparation technique is successfully developed to synthesize PdPtRuRhAu high‐entropy alloys (HEAs) of various sizes, within the 3.14 nm particles (HEA‐3.14) demonstrating exceptional catalytic performance and stable hydrogen production at current densities of −500 and −1000 mA·cm−2 with negligible activity loss over 100 h. Theoretical calculations indicate that the bridge adsorption site of Pd–Au serves as an ideal location for HER, with HEA‐3.14 possessing the highest proportion of such sites, reaching 18.97%. To further analyze the thermodynamic stability of HEAs, an element‐encoding machine learning model is developed from over 300 000 preprocessed dataset of HEAs that achieving an impressively low RMSE of 58.6 °C and a high R2 value of 0.98. By integrating thermodynamic modeling with machine learning methods, the melting point of the PdPtRuRhAu HEAs at 3.14 nm (366 °C) is predicted, which aligns well with the results obtained from differential scanning calorimetry tests. This work offers new insights and approaches for designing HEAs that reliably produce hydrogen at high current densities.