Nature Materials最新文献_第3页

Bio-inspired artificial mechanoreceptors with built-in synaptic functions for intelligent tactile skin 仿生人工机械感受器，内置突触功能，用于智能触觉皮肤

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-28 DOI: 10.1038/s41563-025-02204-y

Seok Ju Hong, Yu Rim Lee, Atanu Bag, Hyo Soo Kim, Tran Quang Trung, M. Junaid Sultan, Dong-Bin Moon, Nae-Eung Lee

{"title":"Bio-inspired artificial mechanoreceptors with built-in synaptic functions for intelligent tactile skin","authors":"Seok Ju Hong, Yu Rim Lee, Atanu Bag, Hyo Soo Kim, Tran Quang Trung, M. Junaid Sultan, Dong-Bin Moon, Nae-Eung Lee","doi":"10.1038/s41563-025-02204-y","DOIUrl":"https://doi.org/10.1038/s41563-025-02204-y","url":null,"abstract":"Tactile perception involves the preprocessing of signals from slowly adapting and fast-adapting afferent neurons, which exhibit synapse-like interactions between mechanoreceptors and their dendrites or terminals, transmitting signals to the brain. Emulating these adaptation and sensory memory functions is crucial for artificial tactile sensing systems. Here, inspired by human tactile afferent systems, we present an array of artificial synaptic mechanoreceptors with built-in synaptic functions by vertically integrating synaptic transistors with a reduced graphene oxide channel, an ionogel gate dielectric and an elastomeric fingerprint-like receptive layer in an all-in-one platform. Triboelectric-capacitive gating between the receptive layer and gate dielectric in response to tactile stimulation governs excitatory post-synaptic current patterns, enabling slowly adapting and fast-adapting characteristics for signal preprocessing. The artificial synaptic mechanoreceptor array demonstrated handwriting style, surface pattern and texture discrimination via machine learning using fused slowly adapting and fast-adapting post-synaptic values, offering high data efficiency and potential for intelligent skin.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Double-network-inspired mechanical metamaterials 双网络启发的机械超材料

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-23 DOI: 10.1038/s41563-025-02219-5

James Utama Surjadi, Bastien F. G. Aymon, Molly Carton, Carlos M. Portela

{"title":"Double-network-inspired mechanical metamaterials","authors":"James Utama Surjadi, Bastien F. G. Aymon, Molly Carton, Carlos M. Portela","doi":"10.1038/s41563-025-02219-5","DOIUrl":"https://doi.org/10.1038/s41563-025-02219-5","url":null,"abstract":"Mechanical metamaterials can achieve high stiffness and strength at low densities, but often at the expense of low ductility and stretchability—a persistent trade-off in materials. In contrast, double-network hydrogels feature interpenetrating compliant and stiff polymer networks, and exhibit unprecedented combinations of high stiffness and stretchability, resulting in exceptional toughness. Here we present double-network-inspired metamaterials by integrating monolithic truss (stiff) and woven (compliant) components into a metamaterial architecture, which achieves a tenfold increase in stiffness and stretchability compared to its pure counterparts. Nonlinear computational mechanics models elucidate that enhanced energy dissipation in these double-network-inspired metamaterials stems from increased frictional dissipation due to entanglements between networks. Through introduction of internal defects, which typically degrade mechanical properties, we demonstrate a threefold increase in energy dissipation for these metamaterials via failure delocalization. This work opens avenues for developing metamaterials in a high-compliance regime inspired by polymer network topologies.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"13 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electron ptychography reveals a ferroelectricity dominated by anion displacements 电子电图揭示了由阴离子位移主导的铁电性

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-23 DOI: 10.1038/s41563-025-02205-x

Harikrishnan KP, Ruijuan Xu, Kinnary Patel, Kevin J. Crust, Aarushi Khandelwal, Chenyu Zhang, Sergey Prosandeev, Hua Zhou, Yu-Tsun Shao, Laurent Bellaiche, Harold Y. Hwang, David A. Muller

{"title":"Electron ptychography reveals a ferroelectricity dominated by anion displacements","authors":"Harikrishnan KP, Ruijuan Xu, Kinnary Patel, Kevin J. Crust, Aarushi Khandelwal, Chenyu Zhang, Sergey Prosandeev, Hua Zhou, Yu-Tsun Shao, Laurent Bellaiche, Harold Y. Hwang, David A. Muller","doi":"10.1038/s41563-025-02205-x","DOIUrl":"https://doi.org/10.1038/s41563-025-02205-x","url":null,"abstract":"Sodium niobate, a lead-free ferroic material, hosts delicately balanced, competing order parameters, including ferroelectric states that can be stabilized by epitaxial strain. Here we show that the resulting macroscopic ferroelectricity exhibits an unconventional microscopic structure using multislice electron ptychography. This technique overcomes multiple scattering artefacts limiting conventional electron microscopy, enabling both lateral spatial resolution beyond the diffraction limit and recovery of three-dimensional structural information. These imaging capabilities allow us to separate the ferroelectric interior of the sample from the relaxed surface structure and identify the soft phonon mode and related structural distortions with picometre precision. Unlike conventional ferroelectric perovskites, we find that the polar distortion in this material involves minimal distortions of the cation sublattices and is instead dominated by anion displacements relative to the niobium sublattice. We establish limits on film thickness for interfacial octahedral rotation engineering and directly visualize a random octahedral rotation pattern, arising from the flat dispersion of the associated phonon mode.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"30 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling ferroelectric 3D microstructures 揭示铁电三维微结构

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-23 DOI: 10.1038/s41563-025-02206-w

Xiaoyue Gao, Peng Gao

引用次数: 0

Tunable fractional Chern insulators in rhombohedral graphene superlattices 斜方体石墨烯超晶格中的可调谐分数切尔诺绝缘体

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-22 DOI: 10.1038/s41563-025-02225-7

Jian Xie, Zihao Huo, Xin Lu, Zuo Feng, Zaizhe Zhang, Wenxuan Wang, Qiu Yang, Kenji Watanabe, Takashi Taniguchi, Kaihui Liu, Zhida Song, X. C. Xie, Jianpeng Liu, Xiaobo Lu

{"title":"Tunable fractional Chern insulators in rhombohedral graphene superlattices","authors":"Jian Xie, Zihao Huo, Xin Lu, Zuo Feng, Zaizhe Zhang, Wenxuan Wang, Qiu Yang, Kenji Watanabe, Takashi Taniguchi, Kaihui Liu, Zhida Song, X. C. Xie, Jianpeng Liu, Xiaobo Lu","doi":"10.1038/s41563-025-02225-7","DOIUrl":"https://doi.org/10.1038/s41563-025-02225-7","url":null,"abstract":"Fractional Chern insulators showing transport effects with fractionally quantized Hall plateaus under zero magnetic field provide opportunities to engineer topological electronics. By construction of a topological flat band with moiré engineering, intrinsic fractional Chern insulators have been observed in twisted MoTe2 and rhombohedral pentalayer graphene superlattices. Here we demonstrate moiré superlattices consisting of rhombohedral hexalayer graphene and hexagonal boron nitride that exhibit both integer and fractional quantum anomalous Hall effects. By tuning electrical and magnetic fields at 0 < ν < 1 (v, moiré filling factor), we have observed phase transitions showing a sign reversal of the Hall resistivity at finite magnetic fields. The fractional Chern insulator state at ν = 2/3 survives in the phase transitions, exhibiting a quantized Hall resistivity across both phases. Finally we have theoretically demonstrated the crucial role of the moiré potential in the formation of flat Chern bands. Our work enriches the family of fractional Chern insulators and can advance the exploration of quasi-particles with fractional charge and non-Abelian anyons.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"41 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deciphering electrocatalysts with multimodal operando approaches 用多模态operando方法解读电催化剂

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-18 DOI: 10.1038/s41563-025-02224-8

Meng Li, Stephen D. House, Judith C. Yang

引用次数: 0

Synapse-powered vitality Synapse-powered活力

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-18 DOI: 10.1038/s41563-025-02209-7

Qijun Sun, Zhong Lin Wang

引用次数: 0

Bioinstructive scaffolds enhance stem cell engraftment for functional tissue regeneration 生物指导性支架促进干细胞植入功能组织再生

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-17 DOI: 10.1038/s41563-025-02212-y

Di Wu, Ioannis Eugenis, Caroline Hu, Soochi Kim, Abhijnya Kanugovi, Shouzheng Yue, Joshua R. Wheeler, Iman Fathali, Sonali Feeley, Joseph B. Shrager, Ngan F. Huang, Thomas A. Rando

{"title":"Bioinstructive scaffolds enhance stem cell engraftment for functional tissue regeneration","authors":"Di Wu, Ioannis Eugenis, Caroline Hu, Soochi Kim, Abhijnya Kanugovi, Shouzheng Yue, Joshua R. Wheeler, Iman Fathali, Sonali Feeley, Joseph B. Shrager, Ngan F. Huang, Thomas A. Rando","doi":"10.1038/s41563-025-02212-y","DOIUrl":"https://doi.org/10.1038/s41563-025-02212-y","url":null,"abstract":"Stem cell therapy is a promising approach for tissue regeneration after traumatic injury, yet current applications are limited by inadequate control over the fate of stem cells after transplantation. Here we introduce a bioconstruct engineered for the staged release of growth factors, tailored to direct different phases of muscle regeneration. The bioconstruct is composed of a decellularized extracellular matrix containing polymeric nanocapsules sequentially releasing basic fibroblast growth factor and insulin-like growth factor 1, which promote the proliferation and differentiation of muscle stem cells, respectively. When applied to a volumetric muscle loss defect in an animal model, the bioconstruct enhances myofibre formation, angiogenesis, innervation and functional restoration. Further, it promotes functional muscle formation with human or aged murine muscle stem cells, highlighting the translational potential of this bioconstruct. Overall, these results highlight the potential of bioconstructs with orchestrated growth factor release for stem cell therapies in traumatic injury.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"16 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Immune-compatible designs of semiconducting polymers for bioelectronics with suppressed foreign-body response 抑制异物反应的生物电子学用半导体聚合物的免疫兼容设计

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-17 DOI: 10.1038/s41563-025-02213-x

Nan Li, Seounghun Kang, Zhichang Liu, Shinya Wai, Zhe Cheng, Yahao Dai, Ani Solanki, Songsong Li, Yang Li, Joseph Strzalka, Michael J. V. White, Yun-Hi Kim, Bozhi Tian, Jeffrey A. Hubbell, Sihong Wang

{"title":"Immune-compatible designs of semiconducting polymers for bioelectronics with suppressed foreign-body response","authors":"Nan Li, Seounghun Kang, Zhichang Liu, Shinya Wai, Zhe Cheng, Yahao Dai, Ani Solanki, Songsong Li, Yang Li, Joseph Strzalka, Michael J. V. White, Yun-Hi Kim, Bozhi Tian, Jeffrey A. Hubbell, Sihong Wang","doi":"10.1038/s41563-025-02213-x","DOIUrl":"https://doi.org/10.1038/s41563-025-02213-x","url":null,"abstract":"One of the greatest obstacles to achieving implantable electronics with long-term functionality and minimized inflammatory reactions is the immune-mediated foreign-body response (FBR). Recently, semiconducting polymers with mixed electron–ion conductivity have been demonstrated as promising candidates to achieve direct electrical interfacing on bio-tissues. However, there is limited understanding of their immune compatibility in vivo, and strategies for minimizing the FBR through molecular design remain underexplored. Here we introduce a set of molecular design strategies for enhancing the immune compatibility of semiconducting polymers. Specifically, we show that selenophene, when incorporated in the backbone, can mitigate the FBR by suppressing macrophage activation. In addition, side-chain functionalization with immunomodulatory groups decreases the FBR further by downregulating the expression of inflammatory biomarkers. Together, our synthesized polymers achieve suppression of the FBR by as much as 68% (as indicated by the collagen density). In the meantime, these immune-compatible designs still provide a high charge-carrier mobility of around 1 cm2 V−1 s−1. We anticipate that such immune-compatible design principles can be translated to a variety of conjugated polymers to suppress the FBR for implantable applications.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"22 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Skyrmion nanodomains in ferroelectric–antiferroelectric solid solutions 铁电-反铁电固溶体中的Skyrmion纳米畴

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-04-15 DOI: 10.1038/s41563-025-02216-8

Weijie Zheng, Xingyue Ma, Zhentao Pang, Yifeng Ren, Hongying Chen, Jibo Xu, Chunyan Zheng, Jianyi Liu, Xiaohui Liu, Yu Deng, Yuefeng Nie, Di Wu, Laurent Bellaiche, Yurong Yang, Zheng Wen

{"title":"Skyrmion nanodomains in ferroelectric–antiferroelectric solid solutions","authors":"Weijie Zheng, Xingyue Ma, Zhentao Pang, Yifeng Ren, Hongying Chen, Jibo Xu, Chunyan Zheng, Jianyi Liu, Xiaohui Liu, Yu Deng, Yuefeng Nie, Di Wu, Laurent Bellaiche, Yurong Yang, Zheng Wen","doi":"10.1038/s41563-025-02216-8","DOIUrl":"https://doi.org/10.1038/s41563-025-02216-8","url":null,"abstract":"Polar skyrmions have demonstrated rich physics and exotic properties for developing novel functionalities. However, so far, skyrmion nanodomains exist only in a few material systems, such as ferroelectric/dielectric superlattices, free-standing PbTiO3/SrTiO3 epitaxial bilayers and ultrathin Pb(Zr,Ti)O3/SrTiO3/Pb(Zr,Ti)O3 sandwiches. These heterostructures are fabricated with elaborately designed boundary conditions to meet the delicate energy balance for stabilizing topological phases. This requirement limits the broad applications of skyrmions in electronic devices. Here we show widespread skyrmion nanodomains in ferroelectric–antiferroelectric solid solutions, composed of ferroelectric PbTiO3 and one antiferroelectric PbSnO3 (Pb(Ti1–xSnx)O3), PbHfO3 (Pb(Ti1–xHfx)O3) or PbZrO3 (Pb(Ti1–xZrx)O3). The skyrmionic textures are formed by engineering dipole–dipole and antiferrodistortive–dipole couplings in competition between ferroelectric and antiferroelectric polar orderings, allowing the stabilization of topological phases. A phase diagram is built for the three solid solution series, revealing the stabilization regions of skyrmion nanodomains. In addition, the non-trivial domains also exhibit improved switching character, reversible writing/erasure and long-term retention for the electrical manipulation of polar configurations. These findings open an avenue for the investigation and exploitation of polar skyrmions in ferroelectric-based materials, providing opportunities in topological electronics.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"26 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0