bluuebunny/crossref_metadata_2025_split huggingface dataset:
Visible Light Effects on Photostrictive/Magnetostrictive PMN‐PT/Ni Heterostructure
Authors: Dagur Deepak , Polewczyk Vincent , Petrov Aleksandr Yu. , Carrara Pietro , Brioschi Marta , Fiori Sara , Cucini Riccardo , Rossi Giorgio , Panaccione Giancarlo , Torelli Piero , Vinai Giovanni 
Published: November 2022

AbstractThe possibility of modifying the ferromagnetic response of a multiferroic heterostructure via fully optical means exploiting the photovoltaic/photostrictive properties of the ferroelectric component is an effective method for tuning the interfacial properties. In this study, the effects of 405 nm visible‐light illumination on the ferroelectric and ferromagnetic responses of (001) Pb(Mg1/3Nb2/3)O3‐0.4PbTiO3 (PMN‐PT)/Ni heterostructures are presented. By combining electrical, structural, magnetic, and spectroscopic measurements, how light illumination above the ferroelectric bandgap energy induces a photovoltaic current and the photostrictive effect reduces the coercive field of the interfacial magnetostrictive Ni layer are shown. Firstly, a light‐induced variation in the Ni orbital moment as a result of sum‐rule analysis of x‐ray magnetic circular dichroic measurements is reported. The reduction of orbital moment reveals a photogenerated strain field. The observed effect is strongly reduced when polarizing out‐of‐plane the PMN‐PT substrate, showing a highly anisotropic photostrictive contribution from the in‐plane ferroelectric domains. These results shed light on the delicate energy balance that leads to sizeable light‐induced effects in multiferroic heterostructures, while confirming the need of spectroscopy for identifying the physical origin of interface behavior.
Three‐Dimensional Transformation of Membrane‐Type Electronics Using Transient Microfluidic Channels for the Sequential Selective Plasticization of Supportive Plastic Substrates
Authors: Cha Jihun , Kim Gi‐Gwan , Kim Seung Hyun , Park Dukkyu , Yoo Jung Il , Jang Hun Soo , Yoon Jongwon , Ko Heung Cho 
Published: November 2022

AbstractThis study demonstrates a technique for the development of 3D electronics based on planar membrane‐type devices and a supportive plastic (e.g., acrylonitrile butadiene styrene [ABS] used in this study) substrate containing internal microfluidic channels (µ‐FCs) that allow selective plasticization and transformation after the insertion of a liquid plasticizer (e.g., N,N‐dimethylformamide). The internal µ‐FC has a strong advantage of transiency and does not require an additional removal process because the channels are self‐closed by the swelling and dissolution of the plasticized regions. Furthermore, the 3D printing process to create internal µ‐FCs provides a considerable amount of freedom in channel design for sequential plasticization and transformation into complex structures. Using this method, extreme scenarios that involve complete bending of the metal electrodes and indium gallium zinc oxide thin‐film transistors laminated to the ABS substrates without electrical failure are possible, regardless of the bending direction and the vertical position of the electrode of the plastic substrate. Finally, a truncated octahedral light‐emitting diode display is successfully developed by multiple cycles of sequential plasticization and transformation processes to demonstrate the feasibility of this method.
Electrohydraulic Vascular Compression Device (e‐VaC) with Integrated Sensing and Controls
Authors: Pirozzi Ileana , Kight Ali , Liang XinYi , Han Amy Kyungwon , Ennis Daniel B. , Hiesinger William , Dual Seraina A. , Cutkosky Mark R. 
Published: November 2022

AbstractRight ventricular (RV) failure remains a significant clinical burden particularly during the perioperative period surrounding major cardiac surgeries, such as implantation of left ventricular assist devices (LVADs), bypass procedures or valvular surgeries. Device solutions designed to support the function of the RV do not keep up with the pace of development of left‐sided solutions, leaving the RV vulnerable to acute failure in the challenging hemodynamic environments of the perioperative setting. This work describes the design of a biomimetic, soft, conformable sleeve that can be prophylactically implanted on the pulmonary artery to support RV ventricular function during major cardiac surgeries, through afterload reduction and augmentation of flow. Leveraging electrohydraulic principles, a technology is proposed that is non‐blood contacting and obviates the necessity for drivelines by virtue of being electrically powered. In addition, the integration of an adjacent is demonstrate, continuous pressure sensing module to support physiologically adaptive control schemes based on a real‐time biological signal. In vitro experiments conducted in a pulsatile flow‐loop replicating physiological flow and pressure conditions show a reduction of mean pulmonary arterial pressure of 8 mmHg (25% reduction), a reduction in peak systolic arterial pressure of up to 10 mmHg (20% reduction), and a concomitant 19% increase in diastolic pulmonary flow. Computational simulations further predict substantial augmentation of cardiac output as a result of reduced RV ventricular stress and RV dilatation.
Dissecting Heterogeneity Reveals a Unique BAMBIhighMFGE8high Subpopulation of Human UC‐MSCs
Authors: Chen Hongwei , Wen Xin , Liu Shanshan , Sun Tian , Song Hua , Wang Fang , Xu Jiayue , Zhang Yueyang , Zhao Yuanjin , Yu Jia , Sun Lingyun 
Published: November 2022

AbstractMixed human umbilical cord‐derived mesenchymal stem cells (UC‐MSCs) are widely applied in clinical trials to treat various diseases due to their multipotent differentiation potential and immune regulatory activities. However, the lack of a clear understanding of their heterogeneity hampers their application to precisely treat diseases. Moreover, few studies have experimentally authenticated the functions of so‐called UC‐MSC subpopulations classified from scRNA‐seq samples. Here, this work draws a large‐scale single‐cell transcriptomic atlas and identified three clusters (C1, C2, and C3), representing the primed, intermediate, and stem statuses individually. The C1 and C3 clusters feature higher expression of cytokines and stemness markers, respectively. Surprisingly, further experimental assays reveal that the BAMBIhighMFGE8high C1 subgroup has a unique phenotype, distinct transcriptomic profile, and limited adipogenic differentiation potential but compromised immunosuppressive activity in vitro and in vivo in lupus mice. Thus, this work is helpful to clarify the nature of human UC‐MSCs and to choose optimal MSC types to treat specific diseases in the future.
Humidity‐Responsive RGB‐Pixels via Swelling of 3D Nanoimprinted Polyvinyl Alcohol
Authors: Ko Byoungsu , Kim Jaekyung , Yang Younghwan , Badloe Trevon , Park Jeonghoon , Ko Joo Hwan , Jeong Minsu , Kang Hyunjung , Jung Chunghwan , Song Young Min , Rho Junsuk 
Published: November 2022

AbstractHumidity‐responsive structural coloration is actively investigated to realize real‐time humidity sensors for applications in smart farming, food storage, and healthcare management. Here, humidity‐tunable nano pixels are investigated with a 700 nm resolution that demonstrates full standard RGB (sRGB) gamut coverage with a millisecond‐response time. The color pixels are designed as Fabry–Pérot (F–P) etalons which consist of an aluminum mirror substrate, humidity‐responsive polyvinyl alcohol (PVA) spacer, and a top layer of disordered silver nanoparticles (NPs). The measured volume change of the PVA reaches up to 62.5% when the relative humidity (RH) is manipulated from 20 to 90%. The disordered silver NP layer permits the penetration of water molecules into the PVA layer, enhancing the speed of absorption and swelling down to the millisecond level. Based on the real‐time response of the hydrogel‐based F–P etalons with a high‐throughput 3D nanoimprint technique, a high‐resolution multicolored color print that can have potential applications in display technologies and optical encryption, is demonstrated.
PbI2‐DMSO Assisted In Situ Growth of Perovskite Wafers for Sensitive Direct X‐Ray Detection
Authors: Liu Wenjun , Shi Tongyu , Zhu Jiongtao , Zhang Zhenyu , Li Dong , He Xingchen , Fan Xiongsheng , Meng Lingqiang , Wang Jiahong , He Rui , Ge Yongshuai , Liu Yanliang , Chu Paul K. , Yu Xue‐Feng 
Published: November 2022

AbstractAlthough perovskite wafers with a scalable size and thickness are suitable for direct X‐ray detection, polycrystalline perovskite wafers have drawbacks such as the high defect density, defective grain boundaries, and low crystallinity. Herein, PbI2‐DMSO powders are introduced into the MAPbI3 wafer to facilitate crystal growth. The PbI2 powders absorb a certain amount of DMSO to form the PbI2‐DMSO powders and PbI2‐DMSO is converted back into PbI2 under heating while releasing DMSO vapor. During isostatic pressing of the MAPbI3 wafer with the PbI2‐DMSO solid additive, the released DMSO vapor facilitates in situ growth in the MAPbI3 wafer with enhanced crystallinity and reduced defect density. A dense and compact MAPbI3 wafer with a high mobility‐lifetime (µτ) product of 8.70 × 10−4 cm2 V−1 is produced. The MAPbI3‐based direct X‐ray detector fabricated for demonstration shows a high sensitivity of 1.58 × 104 µC Gyair−1 cm−2 and a low detection limit of 410 nGyair s−1.
Fully Transparent, Ultrathin Flexible Organic Electrochemical Transistors with Additive Integration for Bioelectronic Applications
Authors: Takemoto Ashuya , Araki Teppei , Nishimura Kazuya , Akiyama Mihoko , Uemura Takafumi , Kiriyama Kazuki , Koot Johan M. , Kasai Yuko , Kurihira Naoko , Osaki Shuto , Wakida Shin‐ichi , den Toonder Jaap M.J. , Sekitani Tsuyoshi 
Published: November 2022

AbstractOptical transparency is highly desirable in bioelectronic sensors because it enables multimodal optical assessment during electronic sensing. Ultrathin (<5 µm) organic electrochemical transistors (OECTs) can be potentially used as a highly efficient bioelectronic transducer because they demonstrate high transconductance during low‐voltage operation and close conformability to biological tissues. However, the fabrication of fully transparent ultrathin OECTs remains a challenge owing to the harsh etching processes of nanomaterials. In this study, fully transparent, ultrathin, and flexible OECTs are developed using additive integration processes of selective‐wetting deposition and thermally bonded lamination. These processes are compatible with Ag nanowire electrodes and conducting polymer channels and realize unprecedented flexible OECTs with high visible transmittance (>90%) and high transconductance (≈1 mS) in low‐voltage operations (<0.6 V). Further, electroencephalogram acquisition and nitrate ion sensing are demonstrated in addition to the compatibility of simultaneous assessments of optical blood flowmetry when the transparent OECTs are worn, owing to the transparency. These feasibility demonstrations show promise in contributing to human stress monitoring in bioelectronics.
Stimuli‐Responsive Electrospun Fluorescent Fibers Augmented with Aggregation‐Induced Emission (AIE) for Smart Applications
Authors: Kachwal Vishal , Tan Jin‐Chong 
Published: November 2022

AbstractThis review addresses the latest advancements in the integration of aggregation‐induced emission (AIE) materials with polymer electrospinning, to accomplish fine‐scale electrospun fibers with tunable photophysical and photochemical properties. Micro‐ and nanoscale fibers augmented with AIE dyes (termed AIEgens) are bespoke composite systems that can overcome the limitation posed by aggregation‐caused quenching, a critical deficiency of conventional luminescent materials. This review comprises three parts. First, the reader is exposed to the basic concepts of AIE and the fundamental mechanisms underpinning the restriction of intermolecular motions. This is followed by an introduction to electrospinning techniques pertinent to AIE‐based fibers, and the core parameters for controlling fiber architecture and resultant properties. Second, exemplars are drawn from latest research to demonstrate how electrospun nanofibers and porous films incorporating modified AIEgens (especially tetraphenylethylene and triphenylamine derivatives) can yield enhanced photostability, photothermal properties, photoefficiency (quantum yield), and improved device sensitivity. Advanced applications are drawn from several promising sectors, encompassing optoelectronics, drug delivery and biology, chemosensors and mechanochromic sensors, and innovative photothermal devices, among others. Finally, the outstanding challenges together with potential opportunities in the nascent field of electrospun AIE‐active fibers are presented, for stimulating frontier research and explorations in this exciting field.
Arthritic Microenvironment Actuated Nanomotors for Active Rheumatoid Arthritis Therapy
Authors: Xu Cong , Jiang Yuejun , Wang Hong , Zhang Yuxin , Ye Yicheng , Qin Hanfeng , Gao Junbin , Dan Qing , Du Lingli , Liu Lu , Peng Fei , Li Yingjia , Tu Yingfeng 
Published: November 2022

AbstractIncreasing O2 demand and excessive ROS production are the main features of arthritic microenvironment in rheumatoid arthritis (RA) joints and further play pivotal roles in inflammation exacerbation. In this work, a system of in situ regulation of arthritic microenvironment based on nanomotor strategy is proposed for active RA therapy. The synthesized MnO2‐motors enable catalytic regulation of RA microenvironment by consuming the overproduced H2O2 and generating O2 synergistically. The generated O2 under H2O2‐rich conditions functions as inflammation detector, propellant for enhanced diffusion, as well as ameliorator for the hypoxic synovial microenvironment. Owing to O2 generation and inflammation scavenging, the MnO2‐motors block the re‐polarization of pro‐inflammatory macrophages, which results in significantly decreased secretion of multiple pro‐inflammatory cytokines both in vitro and in vivo. In addition, intra‐articular administration of MnO2‐motors to collagen‐induced arthritis rats (CIA rats) effectively alleviates hypoxia, synovial inflammation, bone erosion, and cartilage degradation in joints. Therefore, the proposed arthritic regulation strategy shows great potential to seamlessly integrate basic research of RA with clinical translation.
Terahertz Spin‐Conjugate Symmetry Breaking for Nonreciprocal Chirality and One‐Way Transmission Based on Magneto‐Optical Moiré Metasurface
Authors: Tan Zhiyu , Fan Fei , Guan Shengnan , Wang Hao , Zhao Dan , Ji Yunyun , Chang Shengjiang 
Published: November 2022

AbstractIn this work, the gyrotropic semiconductor InSb into the twisted bilayer metasurface to form a magneto‐optical moiré metasurface is introduced. Through the theoretical analysis, the “moiré angle” is developed in which case the nonreciprocity and chirality with the spin‐conjugate asymmetric transmission are obtained due to the simultaneous breaking of both time‐reversal symmetry and spatial mirror symmetry. The experiments confirm that the chirality can be actively manipulated by rotating the twisted angle and the external magnetic field, realizing spin‐conjugate asymmetric transmission. Meanwhile, the two spin states also realize the nonreciprocal one‐way transmission, and their isolation spectra are also spin‐conjugate asymmetric: one is enhanced up to 48 dB, and the other's bandwidth is widened to over 730 GHz. This spin‐conjugate symmetry‐breaking effect in the MOMM brings a combination of time‐space asymmetric transmission, and it also provides a new scheme for the implementation of high‐performance THz chirality controllers and isolators.
Ultrafast Manufacturing of Ultrafine Structure to Achieve An Energy Density of Over 120 Wh kg−1 in Supercapacitors
Authors: Zhang Jingchao , Luo Jiawei , Guo Zhaoxin , Liu Zhedong , Duan Cunpeng , Dou Shuming , Yuan Qunyao , Liu Peng , Ji Kemeng , Zeng Cuihua , Xu Jie , Liu Wei‐Di , Chen Yanan , Hu Wenbin 
Published: November 2022

AbstractSupercapacitor (SC) is one of the most promising electrochemical energy‐storage devices. However, the practical application of SCs is limited by the low‐energy density. Herein, high‐temperature shock (HTS)‐derived ultrafine structure‐activated porous carbon (UAPC) with N, O functional groups is reported as high‐energy density SCs carbon. The process of ultrafast joule heating and cooling effectively transfers general‐purposed carbon into electrochemical‐activated carbon. The UAPC‐based SCs exhibit an energy density of up to 129 Wh kg−1 in EMIMBF4 ionic liquid, which outperform almost all reported and commercial SCs (22 Wh kg−1). The outstanding electrochemical performance of UAPC is attributed to the ultrafine structure and N, O functional groups, which enlarges the surface area, improves the surface wettability of UAPC electrodes, and provides pseudocapacitance. The facile and efficient ultrafast‐processing strategy has opened up an unprecedented pathway for the application of low‐value carbon for the electrode design and application of SCs.
A Multifunctional Polymer as an Interfacial Layer for Efficient and Stable Perovskite Solar Cells
Authors: Zhang Bingqian , Chen Chen , Wang Xianzhao , Du Xiaofan , Liu Dachang , Sun Xiuhong , Li Zhipeng , Hao Lianzheng , Gao Caiyun , Li Yimeng , Shao Zhipeng , Wang Xiao , Cui Guanglei , Pang Shuping 
Published: November 2022

AbstractMetal‐cation defects and halogen‐anion defects in perovskite films are critical to the efficiency and stability of perovskite solar cells (PSCs). In this work, a random polymer, poly(methyl methacrylate‐co‐acrylamide) (PMMA‐AM), was synthesized to serve as an interfacial passivation layer for synergistically passivating the under‐coordinated Pb2+and anchor the I‐of the [PbI6]4−octahedron. Additionally, the interfacial PMMA‐AM passivation layer cannot be destroyed during the hole transport layer deposition because of its low solubility in chlorobenzene. This passivation leads to an enhancement in the open‐circuit voltage from 1.12 to 1.22 V and improved stability in solar cell devices, with the device maintaining 95 % of the initial power conversion efficiency (PCE) over 1000 h of maximum power point tracking. Additionally, a large‐area solar cell module was fabricated using this approach, achieving a PCE of 20.64 %.
Sulfonated polyether ether ketone composite proton exchange membranes incorporated with a novel hierarchical‐structure hybrid nanofiller consisting solid superacid zirconium phosphate and CNTs
Authors: Yan Pengjia , Yu Zhanghu , Chen Zhihong , Hu Ji , Wang Wanhui , Gong Chunli 
Published: November 2022

AbstractHow to simultaneously improved the proton conductivity and mechanical strength is a key problem facing currently used proton exchange membranes (PEMs). Herein, a solid inorganic superacid‐zirconium phosphate (ZrP) with a two‐dimensional layer structure was combined with one‐dimensional carbon nanotubes (CNTs) to prepare hybrid nanofiller ZrP‐CNTs by an in situ chemical deposition method. The new hybrid nanofiller was then applied to modify sulfonated polyether ether ketone (SPEEK), a widely used PEM matrix, to obtain a series of composite membranes. The structure and properties of the membranes were fully characterized by SEM, XRD, FTIR, TG, tensile properties, and proton conductivity. The results showed that the proton conductivities of the membranes were significantly improved due to the addition of super solid acid‐ZrP that has abundant proton sources or proton sites. Moreover, the composite membranes exhibited better mechanical properties and thermal stability than those of pure SPEEK membrane, owing to the great interface interaction and good compatibility between ZrP‐CNTs and SPEEK. The composite membrane (2 wt% ZrP‐CNTs) demonstrated the optimal comprehensive performance. Its proton conductivity was 36.63 mS cm−1 and its tensile strength was 37.56 MPa, which was 70% and 10%, respectively, higher than those of the pure SPEEK membrane under the same condition.
Atypical development of social and nonsocial working memory capacity among preschoolers with autism spectrum disorders
Authors: Gong Linlin , Guo Dong , Gao Zaifeng , Wei Kunlin 
Published: November 2022

AbstractIndividuals with autism spectrum disorders (ASD) have shown impaired performance in canonical and nonsocial working memory (WM). However, no study has investigated social WM and its early development. Using biological motion stimuli, our study assessed the development of social and nonsocial WM capacity among children with or without ASD across the age span between 4 and 6 (N = 150). While typically developing (TD) children show a rapid development from age 5 to 6, children with ASD showed a delayed development for both social and nonsocial WM capacity, reaching a significant group difference at age 6. Furthermore, we found a negative correlation between social (but not nonsocial) WM capacity and the severity of autistic symptoms among children with ASD. In contrast, there is a positive correlation between both types of WM capacity and intelligence among TD children but not among children with ASD. Our findings thus indicate that individuals with ASD miss the rapid development of WM capacity in early childhood and, particularly, their delayed social WM development might contribute to core symptoms that critically depend on social information processing.
Teaching graduate research skills in genomics via an integrated ‘flipped’ journal club program
Authors: Golden Aaron 
Published: November 2022

AbstractJournal clubs are well regarded as a highly effective means of engaging graduate students with the contemporary research literature, where individual students prepare and deliver presentations on selected research articles to their peers, followed by a group discussion. Regular journal clubs have the advantage of enhancing student scientific reading, assessment and communication skills as well as developing a better understanding of the field. We developed a flipped journal club program as part of the one semester module ‘Genomics Research Methods’ with the goal of enhancing—and quantifying—individual student ability to engage with the genomics scientific literature. This involves all students and faculty reviewing a given manuscript, with the former submitting research relevant questions they would wish to ask the presenting student at the journal club, and the latter grading them. These questions are then ranked based on their median grade, and subsequently discussed in class. This cycle repeats weekly until all students have presented. Our analysis of question grade data over three consecutive years demonstrated clear improvements in student performance for all students between the start and end of the module. While no difference in performance was noted based on gender over the full semester, improvement in performance was significantly evident for the female cohort between the start and end of the module. Our results are consistent with module survey feedback of overall reported enhanced research self‐efficacy. This demonstrates that this flipped journal club implementation is a highly effective means of both assessing and improving individual student learning in genomics research ability. The involvement of the teaching faculty furthermore offers a means to foster a dynamic research community for all participants involved. This methodology is easily transferable to other bioscience graduate/undergraduate programs seeking to effectively teach essential research ability skills and enhance student self‐efficacy.