bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electrocatalysis of Fe‐N‐C Bonds Driving Reliable Interphase and Fast Kinetics for Phosphorus Anode in Sodium‐Ion Batteries
Authors: Ge Junmin , Ma Cunshuang , Wan Yanhua , Tang Guochuan , Dai Hongliu , Sun Shuhui , Chen Weihua 
Published: July 2023

AbstractPhosphorus exhibits high capacity and low redox potential, making it a promising anode material for future sodium‐ion batteries. However, its practical applications are confined by poor durability and sluggish kinetics. Herein, an innovative in‐situ electrochemically self‐driven strategy is presented to embed phosphorus nanocrystal (≈10 nm) into a Fe‐N‐C‐rich 3D carbon framework (P/Fe‐N‐C). This strategy enables rapid and high‐capacity sodium ion storage. Through a combination of experimental assistance and theoretical calculations, a novel synergistic catalytic mechanism of Fe‐N‐C is reasonably proposed. In detail, the electrochemical formation of Fe‐N‐C catalytic sites facilitates the release of fluorine in ester‐based electrolyte, inducing Na+‐conducting‐enhanced solid‐electrolyte interphase. Furthermore, it also effectively induces the dissociation energy of the P‐P bond and promotes the reaction kinetics of P anode. As a result, the unconventional P/Fe‐N‐C anode demonstrates outstanding rate‐capability (267 mAh g−1 at 100 A g−1) and cycling stability (72%, 10 000 cycles). Notably, the assembled pouch cell achieves high‐energy density of 220 Wh kg−1.
A Metal‐Organic Framework Incorporating Eight Different Size Rare‐Earth Metal Elements: Toward Multifunctionality À La Carte
Authors: Li Zhen , Li Xiao‐Bao , Light Mark E. , Carrillo Anna E. , Arauzo Ana , Valvidares Manuel , Roscini Claudio , Teixidor Francesc , Viñas Clara , Gándara Felipe , Bartolomé Elena , Planas José Giner 
Published: July 2023

AbstractMulti‐metallic multivariate (MTV) rare earth (RE) metal−organic frameworks (MOFs) are of interest for the development of multifunctional materials, however examples with more than three RE cations are rare and obstructed by compositional segregation during synthesis. Herein, this work demonstrates the synthesis of a multi‐metallic MTV RE MOF incorporating two, four, six, or eight different RE ions with different sizes and in nearly equimolar amounts and no compositional segregation. The MOFs are formed by a combination of RE cations (La, Ce, Eu, Gd, Tb, Dy, Y, and Yb) and a 1,7‐di(4‐carboxyphenyl)‐1,7‐dicarba‐closo‐dodecaborane (mCB‐L) linker. The steric bulkiness and acidity of mCB‐L is crucial for the incorporation of different size RE ions into the MOF structure. Demonstration of the incorporation of all RE cations is performed via compositional and structural characterization. The more complex MTV MOF, including all eight RE ions (mCB‐8RE), are also characterized using optical, thermal, and magnetic techniques. Element‐selective X‐ray absorption spectroscopy and X‐ray Magnetic Circular Dichroism measurements allow us to characterize spectroscopically each of the eight RE ions and determine their magnetic moments. This work paves the way for the investigation of MTV MOFs with the possibility to combine RE ions à la carte for diverse applications.
Boosting Efficient and Sustainable Alkaline Water Oxidation on a W‐CoOOH‐TT Pair‐Sites Catalyst Synthesized via Topochemical Transformation
Authors: Wang Ligang , Su Hui , Tan Guoying , Xin Junjie , Wang Xiaoge , Zhang Zhuang , Li Yaping , Qiu Yi , Li Xiaohui , Li Haisheng , Ju Jing , Duan Xinxuan , Xiao Hai , Chen Wenxing , Liu Qinghua , Sun Xiaoming , Wang Dingsheng , Sun Junliang 
Published: July 2023

AbstractThe development of facile methods for constructing highly active, cost‐effective catalysts that meet ampere‐level current density and durability requirements for an oxygen evolution reaction is crucial. Herein, a general topochemical transformation strategy is posited: M‐Co9S8 single‐atom catalysts (SACs) are directly converted into M‐CoOOH‐TT (M = W, Mo, Mn, V) pair‐sites catalysts under the role of incorporating of atomically dispersed high‐valence metals modulators through potential cycling. Furthermore, in situ X‐ray absorption fine structure spectroscopy is used to track the dynamic topochemical transformation process at the atomic level. The W‐Co9S8 breaks through the low overpotential of 160 mV at 10 mA cm−2. A series of pair‐site catalysts exhibit a large current density of approaching 1760 mA cm−2 at 1.68 V vs reversible hydrogen electrode (RHE) in alkaline water oxidation and achieve a ≈240‐fold enhancement in the normalized intrinsic activity compare to that reported CoOOH, and sustainable stability of 1000 h. Moreover, the O─O bond formation is confirmed via a two‐site mechanism, supported by in situ synchrotron radiation infrared and density functional theory (DFT) simulations, which breaks the limit of adsorption‐energy scaling relationship on conventional single‐site.
A 3D‐Printed Ferromagnetic Liquid Crystal Elastomer with Programmed Dual‐Anisotropy and Multi‐Responsiveness
Authors: Sun Yuxuan , Wang Liu , Zhu Zhengqing , Li Xingxiang , Sun Hong , Zhao Yong , Peng Chenhui , Liu Ji , Zhang Shiwu , Li Mujun 
Published: July 2023

AbstractLiquid crystal elastomers (LCE) and magnetic soft materials are promising active materials in many emerging fields, such as soft robotics. Despite the high demand for developing active materials that combine the advantages of LCE and magnetic actuation, the lack of independent programming of the LCE nematic order and magnetization in a single material still hinders the desired multi‐responsiveness. In this study, a ferromagnetic LCE (magLCE) ink with nematic order and magnetization is developed that can be independently programmed to be anisotropic, referred to as “dual anisotropy”, via a customized 3D‐printing platform. The magLCE ink is fabricated by dispersing ferromagnetic microparticles in the LCE matrix, and a 3D‐printing platform is created by integrating a magnet with 3‐DoF motion into an extrusion‐based 3D printer. In addition to magnetic fields, magLCEs can also be actuated by heating sources (either environmental heating or photo‐heating of the embedded ferromagnetic microparticles) with a high energy density and tunable actuation temperature. A programmed magLCE strip robot is demonstrated with enhanced adaptability to complex environments (different terrains, magnetic fields, and temperatures) using a multi‐actuation strategy. The magLCE also has potential applications in mechanical memory, as demonstrated by the multistable mechanical metastructure array with remote writability and stable memory.
An Ultrahighly Stretchable and Recyclable Starch‐Based Gel with Multiple Functions
Authors: Hu Ruofei , Yang Xiaoxuan , Cui Wenxiu , Leng Linfei , Zhao Xueyan , Ji Guochen , Zhao Jing , Zhu Qingzeng , Zheng Junping 
Published: July 2023

AbstractWith the development of various gel‐based flexible sensors, novel gels with multiple integrated and efficient properties, particularly recyclability, have been developed. Herein, a starch‐based ADM (amylopectin (AP)–poly(3‐[dimethyl‐[2‐(2‐methylprop‐2‐ enoyloxy)ethyl]azaniumyl]propane‐1‐sulfonate) (PDMAPS)–MXene) gel is prepared by a facile “cooking” strategy accompanying the gelatinization of AP and polymerization reaction of zwitterionic monomers. Reversible crosslinking in the gel occurs through hydrogen bonding and electrostatic interactions. The ADM gel exhibits high stretchability (≈2700%, after one month), swift self‐healing performance, self‐adhesive properties, favorable freezing resistance, and satisfactory moisturizing properties (≥30 days). Interestingly, the ADM gel can be recycled and reused by a “kneading” method and “dissolution–dialysis” process, respectively. Furthermore, the ADM gel can be assembled as a strain sensor with a broad working strain range (≈800%) and quick response time (response time 211 ms and recovery time 253 ms, under 10% strain) to detect various macro‐ and micro‐human‐motions, even under harsh conditions such as pronunciation and handwriting. The ADM gel can also be used as a humidity sensor to investigate humidity and human respiratory status, suggesting its practical application in personal health management. This study provides a novel strategy for the preparation of high‐performance recycled gels and flexible sensors.
Bioinspired Integrated Auxetic Elastomers Constructed by a Dual Dynamic Interfacial Healing Strategy
Authors: Zheng Zhiran , Li Jiawei , Wei Kailun , Tang Ning , Li Min‐Hui , Hu Jun 
Published: July 2023

AbstractAuxetic materials are appealing due to their unique characteristics of transverse expansion while being axially stretched. Nevertheless, current auxetic materials are often produced by the introduction of diverse geometric structures through cutting or other pore‐making processes, which heavily weaken their mechanical performance. Inspired by the skeleton‐matrix structures in natural organisms, this study reports an integrated auxetic elastomer (IAE) composed of high‐modulus cross‐linked poly(urethane‐urea) as a skeleton and low‐modulus non‐cross‐linked poly(urethane‐urea) as a complementary‐shape matrix. Benefiting from disulfide bonds and hydrogen‐bond‐promoted dual dynamic interfacial healing, the resulting IAE is flat, void‐free, and has no sharp soft‐to‐hard interface. Its fracture strength and elongation at the break are increased to 400% and 150%, respectively, of the values of corrugated re‐entrant skeleton alone, while the negative Poisson's ratio (NPR) reserves within a strain range of 0%–104%. In addition, the advantageous mechanical and auxetic properties of this elastomer are further confirmed by finite element analysis. The concept of combining two dissimilar polymers into an integrated hybrid material solves the problem of the deterioration in mechanical performance of auxetic materials after subtractive manufacturing, while preserves the NPR effect in a large deformation, which provides a promising approach to robust auxetic materials for engineering applications.
Engineered Living Materials for Advanced Diseases Therapy
Authors: Dong Xue , Wu Wei , Pan Pei , Zhang Xian‐Zheng 
Published: July 2023

AbstractNatural living materials serving as biotherapeutics exhibit great potential for treating various diseases owing to their immunoactivity, tissue targeting, and other biological activities. In this review, the recent developments in engineered living materials, including mammalian cells, bacteria, viruses, fungi, microalgae, plants, and their active derivatives that are used for treating various diseases are summarized. Further, the future perspectives and challenges of such engineered living material‐based biotherapeutics are discussed to provide considerations for future advances in biomedical applications.
3D Multiscale Lithium‐Ion Cell Modeling for LiFePO4Freeze‐Casted Electrode Structures Using Synchrotron X‐Ray and FIB/SEM Tomography
Authors: Franke‐Lang Robert , Hilger André , Manke Ingo , Zavareh Sara , Bekheet Maged F. , Gurlo Aleksander , Kowal Julia 
Published: July 2023

AbstractThe performance of batteries and the associated operating areas depend, among other things, on the 3D microstructures of the electrode materials, and thus fundamental research is required in the field of electrode design. A multiscale microstructure‐resolved 3D model is developed that investigates two different LiFePO4freeze‐casted electrode structures, that is, cellular and lamellar. The microstructure is simulated directly from the X‐ray computed tomography data and the nanostructure is combined with the pseudo‐2D simulation approach, where the morphological parameters and the distribution of the binder, carbon, and LiFePO4are obtained from ex situ focused ion beam scanning electron microscopy measurements. The discharge performance shows that the lamellar structure exhibits a lower ohmic overvoltage and achieves a higher gravimetric capacity compared to the cellular structure, even though both electrode materials have the same porosity and amount of active material. The simulation reveals that the performance is not only directly influenced by the lithium‐ion transport through the porous structure but also by the current distribution through the active material. Based on these insights, lamellar electrode structures should be considered for next‐generation battery electrodes. The modeling approach can assist in electrode fabrication by identifying defects or suggesting better structural parameters.
Targeting Lymph Nodes for Systemic Immunosuppression Using Cell‐Free‐DNA‐Scavenging And cGAS‐Inhibiting Nanomedicine‐In‐Hydrogel for Rheumatoid Arthritis Immunotherapy
Authors: Cheng Furong , Su Ting , Liu Yangtengyu , Zhou Shurong , Qi Jialong , Guo Weisheng , Zhu Guizhi 
Published: July 2023

AbstractRheumatoid arthritis (RA) is a systemic autoimmune disease with pathogenic inflammation caused partly by excessive cell‐free DNA (cfDNA). Specifically, cfDNA is internalized into immune cells, such as macrophages in lymphoid tissues and joints, and activates pattern recognition receptors, including cyclic guanosine monophosphate–adenosine monophosphate synthase (cGAS), resulting in overly strong proinflammation. Here, nanomedicine‐in‐hydrogel (NiH) is reported that co‐delivers cGAS inhibitor RU.521 (RU) and cfDNA‐scavenging cationic nanoparticles (cNPs) to draining lymph nodes (LNs) for systemic immunosuppression in RA therapy. Upon subcutaneous injection, NiH prolongs LN retention of RU and cNPs, which pharmacologically inhibit cGAS and scavenged cfDNA, respectively, to inhibit proinflammation. NiH elicits systemic immunosuppression, repolarizes macrophages, increases fractions of immunosuppressive cells, and decreases fractions of CD4+ T cells and T helper 17 cells. Such skewed immune milieu allows NiH to significantly inhibit RA progression in collagen‐induced arthritis mice. These studies underscore the great potential of NiH for RA immunotherapy.
Weakly Interacting Molecular Spins in On‐Surface Synthesized Nanoclusters on a Graphene Oxide Nanosheet
Authors: Sakurai Makoto , Ueta Tsuyoshi , Joachim Christian 
Published: July 2023

AbstractWith an average diameter of ≈2 nm, on‐surface synthesized amino‐ferrocene nanoclusters are chemisorbed onto a graphene oxide nanosheet, where their Fe ions are in an S = 5/2 high‐spin state. In this two‐dimensional (2D) nanomaterial, the molecular spins in a given nanocluster are weakly magnetic dipole interacting. It generates spin correlations and slow dynamics accessible by magnetic susceptibility and Mössbauer spectroscopy at a temperature where the magnetic anisotropy is negligible. Magnetic simulations show that minimizing their magnetic dipole energies produces spatially entangled structures of the spin orientations under thermal fluctuations at T ≲ 15 K and that the structures behave like a spin liquid. The competition between the formation of the structures and their thermal destruction generates slow dynamics. The ability to create emergent functionalities from dense stacks of weakly interacting magnetic molecules in a 2 nm space paves the way for new designs of an ultra‐compact building block and a functional component in 2D spintronic and neuromorphic devices.
“It Was Broken Here Before”: Present day impact of historical trauma in telemental health services in a rural and remote Aleutian Islands Community
Authors: Marvin Alicia F. , Vale Sharnel , Green Seth , Holman Mark V. 
Published: July 2023

AbstractTelemental health technology is a feasible tool for providing behavioral healthcare in rural areas. However, there is scant literature about implementing this technology within Indigenous populations. The Aleutian Pribilof Islands Association is an urban‐based Tribal Health Organization in Alaska tasked with providing behavioral health services to remote Unangax̂ communities. To expand telemental health services, a formative program evaluation was conducted to examine the acceptability of and barriers to implementing telemental health. Using a qualitative approach, five individuals with lived experience in the same community were interviewed using a semi‐structured format. Data were analyzed using critical thematic analysis and situated within the context of historical trauma. Five themes were constructed that showed broken trust as the primary barrier to services, despite the substantial obstacles related to communications infrastructure. When situated within the context of historical trauma, the results show how colonization spurred and has maintained broken trust. The clinical, research, and policy implications resulting from this study point to the need for decolonization and integration of culture in behavioral health services. These findings can be informative for organizations and providers seeking to implement telemental health in Indigenous communities.
A Black feminist youth participatory action research photovoice exploration of Black girls and college women
Authors: Payne Ashley N. 
Published: July 2023

AbstractUtilizing a Black and Hip Hop feminist and Black girlhood studies theoretical lens, the purpose of this study is to explore how Black girls (14–17) and women (19–22), who are in a youth participatory action research (YPAR) mentoring program, BlackGirlsResearch (pseudonym) express their gendered racial identities and gendered racial experiences through their participation in a YPAR photovoice program. This study seeks to answer the following research question: (1) How do Black girls and college women conceptualize their gendered racial identities and gendered racial lived experiences in predominately white schools using a YPAR methodology and photovoice? Employing a qualitative thematic analysis to explore 36 photovoice narratives, results yielded 3 themes: (1) experiencing challenges at predominately white institutions (PWIs): false inclusivity, continued underrepresentation, and tokenism (2) identifying as “queens of culture”: identity and empowerment through art, culture, and breaking conformity and (3) activism, inclusion, and accountability: solutions for PWIs. The results of this study indicate that Black girls and women can not only identify and critically discuss issues related to Black girls and women within PWIs, but through YPAR, they can push for positive youth development and community solutions related to those issues.
Clinical and molecular heterogeneity of syndromic hypothalamic hamartoma
Authors: Bönnemann Carsten G. , Krishnamoorthy Kalpathy S. , Johnston Jennifer J. , Lee Mary M. , Fowler Darren J. , Biesecker Leslie G. , Holmes Lewis B. 
Published: July 2023

AbstractTwo children are presented who have a distinct syndrome of multiple buccolingual frenula, a stiff and short fifth finger with small nails, a hypothalamic hamartoma, mild to moderate neurological impairment, and mild endocrinological symptoms. No variant assessed to be pathogenic or likely pathogenic was detected in theGLI3gene in either child. This syndrome appears to be distinct from the inherited Pallister–Hall syndrome associated withGLI3variants, which is characterized by hypothalamic hamartoma, mesoaxial polydactyly, and other anomalies. In the individuals described here, manifestations outside of the central nervous system were milder and the mesoaxial polydactyly, which is common in individuals with Pallister–Hall syndrome, was absent. Instead, these children had multiple buccolingual frenula together with the unusual appearance of the fifth digit. It remains unclear whether these two individuals represent a separate nosologic entity or if they represent a milder manifestation of one of the more severe syndromes associated with a hypothalamic hamartoma.
Promoter‐Controlled Synthesis and Conformational Analysis of Cyclic Mannosides up to a 32‐mer
Authors: Li Xiaona , Di Carluccio Cristina , Miao He , Zhang Lvfeng , Shang Jintao , Molinaro Antonio , Xu Peng , Silipo Alba , Yu Biao , Yang You 
Published: July 2023

AbstractCyclodextrins are widely used as carriers of small molecules for drug delivery owing to their remarkable host properties and excellent biocompatibility. However, cyclic oligosaccharides with different sizes and shapes are limited. Cycloglycosylation of ultra‐large bifunctional saccharide precursors is challenging due to the constrained conformational spaces. Herein we report a promoter‐controlled cycloglycosylation approach for the synthesis of cyclic α‐(1→6)‐linked mannosides up to a 32‐mer. Cycloglycosylation of the bifunctional thioglycosides and (Z)‐ynenoates was found to be highly dependent on the promoters. In particular, a sufficient amount of a gold(I) complex played a key role in the proper preorganization of the ultra‐large cyclic transition state, providing a cyclic 32‐mer polymannoside, which represents the largest synthetic cyclic polysaccharide to date. NMR experiments and a computational study revealed that the cyclic 2‐mer, 4‐mer, 8‐mer, 16‐mer, and 32‐mer mannosides adopted different conformational states and shapes.
Multiple Triplet Metal‐Centered Jahn‐Teller Isomers Determine Temperature‐Dependent Luminescence Lifetimes in [Ru(bpy)3]2+
Authors: Hernández‐Castillo David , Nau Roland E. P. , Schmid Marie‐Ann , Tschierlei Stefanie , Rau Sven , González Leticia 
Published: July 2023

AbstractUnderstanding the factors that determine the luminescence lifetime of transition metal compounds is key for applications in photocatalysis and photodynamic therapy. Here we show that for
(bpy = 2,2’‐bipyridine), the generally accepted idea that emission lifetimes can be controlled optimizing the energy barrier from the emissive triplet metal‐to‐ligand charge‐transfer (3MLCT) state to the thermally‐activated triplet metal‐centered (3MC) state or the energy gap between both states is a misconception. Further, we demonstrate that considering a single relaxation pathway determined from the minimum that is lowest in energy leads to wrong temperature‐dependent emission lifetimes predictions. Instead, we obtain excellent agreement with experimental temperature‐dependent lifetimes when an extended kinetic model that includes all the pathways related to multiple Jahn–Teller isomers and their effective reaction barriers is employed. These concepts are essential to correctly design other luminescent transition metal complexes with tailored emission lifetimes based on theoretical predictions.
Trajectory tracking control for quadrotor unmanned aerial vehicle with input delay and disturbances
Authors: Li Shuo , Duan Na , Min Huifang 
Published: July 2023

AbstractThis paper aims to solve the tracking control problem for quadrotor unmanned aerial vehicle (UAV) with input delay and disturbances. An appropriate auxiliary system is applied to compensate the effect of the input delay. The nonlinear disturbance observer is utilized to restrain the influence of external disturbances. Then, the controller is designed by backstepping method to ensure the trajectory tracking and steady flight of the quadrotor UAV. We also present simulation and experimental reification results to demonstrate the tracking effect and stable flight of the UAV.