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SSRN 2025年

作者： Lee, Jungkuk Counihan, Michael J. Barai, Pallab Burns, Meghan E. Singh, Vibhu V. Jamnuch, Sasawat Pascal, Tod A. Shrinivasan, Venkat Tepavcevic, Sanja Zhang, Yuepeng Applied Materials Division Argonne National Laboratory LemontIL60439 United States Materials Science Division Argonne National Laboratory LemontIL60439 United States Department of Chemistry University of Illinois Chicago ChicagoIL60607 United States ATLAS Materials Physics Lab Aiiso Yufeng Li Family Department of Chemical and Nano Engineering University of California San Diego La Jolla CA92093 United States Microscopy and Microanalysis Research Group Materials Measurement Science Division National Institute of Standards and Technology GaithersburgMD20899 United States Material Science and Engineering Program University of California San Diego La Jolla CA92093 United States Chemical Sciences and Engineering Division Argonne National Laboratory LemontIL60439 United States

Composite polymer electrolytes (CPEs) hold significant promise for solid-state batteries due to their ability to combine the benefits of inorganic fillers and polymer matrices. However, agglomeration of inorganic fillers can disrupt the formation of a percolation pathway, hindering lithium-ion transport. Here, we developed a stable, porous, and interconnected 3-dimentional LLTO (Li0.33La0.557TiO3) nanofiber scaffold and fabricate CPEs using in-situ crosslinked polyethylene glycol (xPEG). The resulting self-standing LLTOxPEG-65 achieved an ionic conductivity of 5.0 × 10−4 S/cm at 30 °C and a critical current density of 0.5 mA/cm2. A significantly lower activation energy (~0.2 eV) was observed in LLTOxPEG-65 compared to pristine xPEG (0.44 eV), indicating a transition of lithium-ion transport pathways from xPEG to the LLTO scaffold. However, increasing the xPEG content led to a decrease in ionic conductivity and a rise in activation energy, approaching that of pristine xPEG. DFT calculations revealed that Li+ transport in the [010] and [001] planes of LLTO predominantly takes place within the bulk rather than along the surface, while a concerted diffusion mechanism was observed in the [100] plane. Additionally, mesoscale-level computational analysis indicated that the high LLTO scaffold fraction (90 wt %) can ensure transport through the bulk of the fibers even with larger interfacial charge transfer resistance, around 1 Ω·cm2 between LLTO and xPEG. Presence of the highly percolated LLTO scaffold helps to promote efficient Li+ transport through the bulk of LLTO. © 2025, The Authors. All rights reserved.

关键词： Activation energy

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PARTICLE-COLLISION AND POROGEN-LEACHING TECHNIQUE TO FABRICATE POLYMERIC POROUS SCAFFOLDS WITH MICROSCALE ROUGHNESS OF INTERIOR SURFACES

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Chinese Journal of Polymer science 2013年第5期31卷 737-747页

作者： Zhen Pan Ze-hua Qu Zheng Zhang Rong Peng Ce Yan 丁建东 State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceLaboratory of Advanced MaterialsFudan University

A facile technique is herein reported to fabricate three-dimensional （3D） polymeric porous scaffolds with interior surfaces of a topographic microstructure favorable for cell adhesion. As demonstration, a well-known biodegradable polymer poly（lactide-co-glycolide）（PLGA） was employed as matrix. Under the porogen-leaching strategy, the large and soft porogens of paraffin were modified by colliding with small and hard salt particles, which generated micropits on the surfaces of paraffin spheres. The eventual PLGA scaffolds after leaching the modified porogens had thus interior surfaces of microscale roughness imprinted by those micropits. The microrough scaffolds were confirmed to benefit adhesion of bone marrow stromal cells （BMSCs） of rats and meanwhile not to hamper the proliferation and osteogenic differentiation of the cells. The insight and technique might be helpful for biomaterial designing in tissue engineering and regenerative medicine.

关键词： Tissue engineering Porous scaffolds Surface topography Cell adhesion Poly（lactide-co-glycolide）（PLGA）.

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Wet-spinning of Regenerated Silk Fiber from Aqueous Silk Fibroin Solutions: Influence of Calcium Ion Addition in Spinning Dope on the Performance of Regenerated Silk Fiber

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Chinese Journal of Polymer science 2014年第1期32卷 29-34页

作者： Huan Zhou Zheng-zhong Shao 陈新 State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Laboratory of Advanced Materials Fudan University

Ca（II） ions are added in the spinning dope to adjust the solidification rate of regenerated silk fibroin （RSF） solution during the wet-spinning process since Ca（II） ions are proved to be favorable to maintain the stable silk fibroin network in our previous work. The results show that when Ca（II）/RSF ratios are 1/50 and 1/20, the resulted RSF fibers exhibit good performance with the breaking energy more than 70 kJ/kg. However, higher Ca（II）/RSF ratio （for example, 1/10） hinders the solidification of spinning dope and results in poor RSF fibers. These observations together with earlier papers from this laboratory confirm that to produce tough silk fibers the spinning conditions must allow sufficient time for the adjustment of silk fibroin molecular chains.

关键词： Silk fiber Natural polymer Wet-spinning Protein Calcium.

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Claw coloration in the fiddler crab Leptuca uruguayensis has no correlation with male quality

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Current Zoology 2025年第1期71卷 109-123页

作者： Zackary A.Graham Jonatas de Jesus Florentino Samuel P.Smithers Joao C.T.Menezes Jose Eduardo de Carvalho Alexandre V.Palaoro Department of Organismal Biology Ecologyand Zoo ScienceWest Liberty University208 University DriveWest LibertyWV 26074USA Programa de Pós-Graduacao em Ecologia Universidade de São PauloRua do Mataon 321Trav.14ButantãDistrictSao PauloSP 05508-090Brazil Department of Psychology Northeastern University360 Huntington AvenueBostonMA 02115USA Organismic and Evolutionary Biology Graduate Program University of Massachusetts Amherst230 Stockbridge RoadAmherstMA 01003USA Departamento de Ecologia e Biologia Evolutiva Universidade Federal de Sao PauloRua Sao Nicolaun 210Centro DistrictDiademaSP 09972-270Brazil Department of Materials Science and Engineering Clemson University515 Calhoun DrClemsonSC 29634USA Departamento de Zoologia Universidade Federal do ParanáAvenida Coronel Francisco H.dos Santosn 100Jardim das Américas DistrictCuritibaPR 82590-300Brazil

Sexual selection is thought to play a major role in the evolution of color due to the correlation between a signaler’s physiological state and the displayed *** such,researchers often investigate how color correlates to the quality of the ***,research on the relationship between color and individual quality is often taxonomically limited and researchers typically investigate how color phenotypes relate to one index of quality,such as a linear measure of body ***,we investigated the relationship among body size,claw size,claw muscle mass,lipid content,and the color of the claw in male fiddler crabs(Leptuca uruguayensis)which wield an exaggerated claw that varies in color from brown to *** hypothesized that if the color was correlated to one or more indices of male quality,the color displayed on the claws of male *** could be under sexual *** found *** claw color varies substantially among the individuals we ***,we did not find a correlation between claw color and indices of quality;neither brightness nor hue correlated to the indices of quality we *** findings suggest that claw color in *** is unlikely to have evolved to signal quality,but may instead function as a species identity or as a non-indicator sexual signal.

关键词： animal coloration animal communication animal signals Decapoda non-indicator sexual signal sexual selection

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One-step Production of Continuous Supercapacitor Fibers for a Flexible Power Textile

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Chinese Journal of Polymer science 2019年第8期37卷 737-743页

作者： Yang Hong Xun-Liang Cheng Ge-Jun Liu Dong-Sheng Hong Si-Si He Bin-Jie Wang Xue-Mei Sun Hui-Sheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University

Given that conventional bulky electrochemical energy storage devices are too rigid and heavy to be considered wearable,developing fully integrated power systems is expected to accelerate the successful commercialization of smart electronic *** great achievements have been made for fiber-shaped energy storage devices, there remain key challenges pertaining to their fabrication efficiency, scalability, and stability. Herein, a general and highly efficient method is developed to continuously fabricate supercapacitor fibers with lengths of kilometers at high production rate up to 118 m/h through a simple one-step wet spinning *** from the designed unique two-circle-in-one-circle architecture, the resulting supercapacitor fibers demonstrated high electrochemical stability even after being bended for 1 × 10~5 cycles. As a demonstration, these continuous supercapacitor fibers were further woven into a flexible power scarf for large-scale applications in wearable electronics. This simple and scalable fabrication process combined with the unique structure provides a general and effective paradigm to design other fiber-shaped devices like sensors, batteries,and solar cells.

关键词： Continuous production Wet-spinning Fiber-shaped supercapacitors Energy storage fabric

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Prevention of air void formation in polymer-modified cement mortar by pre-wetting

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CEMENT AND CONCRETE RESEARCH 1997年第2期27卷 171-176页

作者： Kim, JH Robertson, RE Macromolecular Science and Engineering Center Department of Materials Science and Engineering The University of Michigan Ann Arbor MI 48109-2136 U.S.A.

The air voids that form when cement and aggregates are mixed with an aqueous polymer solution are not easily removed because they tend to be stabilized by the polymer. Antifoaming agents can be used to prevent air void formation, but they often cause problems of poor adhesion. An alternative approach is suggested for reducing air void formation in polymer-modified mortar, which is to pre-wet the cement and sand with water, and then add a concentrated polymer solution. The air content of a PVA-modified cement mortar prepared in this way was as low as 6%, which was lower than the 13% air content of the PVA-modified mortar with an antifoaming agent, and it was much lower than the 32% air content when a PVA solution was mixed with dry cement and sand. (C) 1997 Elsevier science Ltd.

关键词： Cements

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Polymer-based ?exible bioelectronics

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science Bulletin 2019年第9期64卷 634-640页

作者： Xiaoying Wu Huisheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Scienceand Laboratory of Advanced MaterialsFudan University

Due to the mechanical mismatch between conventional rigid electronic devices and soft tissues at nature,a lot of interests have been attracted to develop flexible bioelectronics that work well both in vitro and in vivo. To this end, polymers that can be used for both key components and substrates are indispensable to achieve high performances such as high sensitivity and long-term stability for sensing *** we will summarize the recent advances on the synthesis of a variety of polymers, the design of typical architectures and the integration of different functions for the flexible bioelectronic devices. The remaining challenges and promising directions are highlighted to provide inspirations for the future study on the emerging flexible bioelectronics at end.

关键词： Polymer Flexible Stretchable Multi-functional Bioelectronic device

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Conditional Generative Modeling for Amorphous Multi-Element materials

arXiv

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arXiv 2025年

作者： Li, Honglin Liu, Chuhao Guo, Yongfeng Luo, Xiaoshan Chen, Yijie Liu, Guangsheng Li, Yu Wang, Ruoyu Wang, Zhenyu Wu, Jianzhuo Ma, Cheng Xie, Zhuohang Lv, Jian Ding, Yufei Zhang, Huabin Luo, Jian Zhong, Zhicheng Li, Mufan Wang, Yanchao Li, Wan-Lu Key Laboratory of Material Simulation Methods and Software Ministry of Education College of Physics Jilin University Changchun China Aiiso Yufeng Li Family Department of Chemical and Nano Engineering University of California La Jolla San DiegoCA United States Institute of Molecular Engineering Plus College of Chemistry Fuzhou University Fuzhou China College of Chemistry and Molecular Engineering Peking University Beijing China School of Physics Nankai University Tianjin China Institute of Modern Physics Fudan University Shanghai China Program in Materials Science and Engineering University of California La Jolla San DiegoCA United States School of Artificial Intelligence and Data Science University of Science and Technology of China Hefei230026 China Suzhou Institute for Advanced Research University of Science and Technology of China Suzhou215123 China International Center of Future Science Jilin University Changchun China Department of Computer Science and Engineering University of California La Jolla San DiegoCA United States Center for Renewable Energy and Storage Technologies Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal Saudi Arabia Suzhou Lab Suzhou215123 China

Amorphous multi-element materials offer unprecedented tunability in composition and properties, yet their rational design remains challenging due to the lack of predictive structure-property relationships and the vast configurational space. Traditional modeling struggles to capture the intricate short-range order that dictates their stability and functionality. We here introduce ApolloX, a pioneering predictive framework for amorphous multi-element materials, establishing a new paradigm by integrating physics-informed generative modeling with particle swarm optimization, using chemical short-range order as an explicit constraint. By systematically navigating the disordered energy landscape, ApolloX enables the targeted design of thermodynamically stable amorphous configurations. It accurately predicts atomic-scale arrangements, including composition-driven metal clustering and amorphization trends, which are well-validated by experiments, while also guiding synthesis by leveraging sluggish diffusion to control elemental distribution and disorder. The resulting structural evolution, governed by composition, directly impacts catalytic performance, leading to improved activity and stability with increasing amorphization. This predictive-experimental synergy transforms the discovery of amorphous materials, unlocking new frontiers in catalysis, energy storage, and functional disordered systems. Copyright © 2025, The Authors. All rights reserved.

关键词： Amorphization

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Supplementary information for "Low-loss silicon nitride Kerr-microresonators fabricated with metallic etch masks via metal lift-off"

arXiv

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arXiv 2025年

作者： Colación, Gabriel M. Rukh, Lala Buck, Franco Drake, Tara E. Optical Science & Engineering Program University of New Mexico AlbuquerqueNM87106 United States Center for High Technology Materials University of New Mexico AlbuquerqueNM87106 United States Department of Physics & Astronomy University of New Mexico AlbuquerqueNM87106 United States

Stoichiometric silicon nitride has emerged as a widely used integratedphotonic material owing to its high index of refraction, nonlinear opticalproperties, and broad transparency window spanning visible to mid-IRfrequencies. However, silicon nitride is generally more resistant to reactiveion etching than are typical etch masks made of polymer-based resist. Thisnecessitates resist layers that are significantly thicker than the siliconnitride and results in mask patterns which are tall and narrow. Thesehigh-aspect-ratio patterns inhibit the plasma transport of reactive ionetching, which leads to difficulties in accurately reproducing dimensions andcreating well-defined, vertical waveguide sidewalls. In this work, we overcomethese challenges by developing a metallic etch mask that provides a 30:1nitride-to-metal etch rate ratio, representing a near 20-fold reduction in therequired mask thickness. We demonstrate the quality of this technique byetching microring resonators with near-vertical waveguide sidewalls andintrinsic quality factors of over 1 million. Leveraging the low optical loss ofour resonators, we generate optical frequency combs with more than an octave ofbandwidth and dual dispersive waves. These results establish metal lift-off asa viable and easy-to-implement technique capable of producing low optical losswaveguides. © 2025, CC BY.

关键词： Aspect ratio

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EFFECT OF REINFORCEMENT SIZE ON AGE-HARDENING OF PM-2009 AL-SIC 20 VOL-PERCENT PARTICULATE COMPOSITES

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JOURNAL OF materials science 1995年第17期30卷 4316-4322页

作者： SANNINO, AP RACK, HJ Materials Science and Engineering Program Department of Mechanical Engineering Clemson University Clemson USA

The influence of SiC particulate size on the age-hardening response of 2009 aluminium has been monitored utilizing hardness, electrical conductivity and differential scanning calorimetry. Ageing involved either two or three stages depending on the reinforcement size. For 2009 Al reinforced with 29 mu m SiCp, initial ageing consisted of GPB (Guinier Preston Baqaryatsky) I zone formation. Decreasing the particulate size to 4 mu m eliminated GPB I formation. This suppression of GPB I formation during ageing suggests that decreasing SiC size decreases the vacancy supersaturation following quenching by providing additional vacancy sinks at SiC/matrix interfaces. Subsequent ageing involved, at the larger reinforcement sizes, a transition with increasing time from GPB I zones to GPB Il-dislocation complexes. At smaller (4 mu m) reinforcement sizes, the formation of GPB Il-dislocation complexes occurs directly. Finally, the last stages of age hardening in all SiCp-reinforced composites examined consisted of heterogeneous nucleation of S'/S and GPB II --> S'/S transformation.

关键词： Metallic matrix composites

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