Pub Date : 2025-10-26DOI: 10.1016/j.matdes.2025.115015
Jingmei Huang , Ning Wang , Xiaoxiao Huang , Shihong Huang , Guoliang Xie , Jianfeng Zhang , Zhengzhao Li
Traumatic brain injury (TBI) is characterized by oxidative stress, neuroinflammation, and microglial dysregulation, leading to secondary neuronal damage. Here, we constructed coordination polymer nanoenzymes (Fe-FN CPs) with multiple enzyme-like activities and favorable biocompatibility. In vitro, Fe-FN CPs suppressed ROS accumulation, reduced pro-inflammatory cytokine release, and promoted microglial polarization toward the M2 phenotype. In vivo, Fe-FN CPs enhanced antioxidant defense, alleviated mitochondrial damage and cerebral edema, restored blood–brain barrier integrity, and improved cognitive performance. Mechanistically, Fe-FN CPs achieved dual regulation by inhibiting pro-inflammatory M1 polarization while promoting anti-inflammatory M2 polarization. These findings demonstrate that Fe-FN CPs exert potent neuroprotective effects and provide a promising nanomedicine strategy for TBI therapy based on natural active compounds.
Pub Date : 2025-10-26DOI: 10.1016/j.matdes.2025.115009
Elina Akbarzadeh Chiniforoush , Sasan Yazdani , Mohammad Reza Jandaghi , Johan Moverare
This study provides the first direct multimodal evidence of dissolution and reprecipitation of TiC during selective laser melting (SLM) of 316L/TiC composites. Functionally graded samples were fabricated with a three-layer architecture: pure 316L SS (L1), 316L + 10 wt% fine TiC (L2), and 316L + 10 wt% coarse TiC (L3). Defect-free samples thereby enabled an isolated study of the particle-size effects on solidification, phase evolution, and strengthening mechanisms. EBSD revealed a transition from coarse columnar grains in L1 to fully equiaxed grains in L2, driven by TiC-induced heterogeneous nucleation and Zener pinning. High-resolution SEM, XRD, and EDS confirmed two distinct populations of secondary TiC: fragmentation-derived intragranular particles (∼100–300 nm) and nanoscale intergranular precipitates formed via dissolution–reprecipitation. Fine TiC reinforcement yielded the most refined microstructure, with the highest high-angle grain boundary fraction (96.6 %). Fine-TiC composites achieved the highest yield strength (847 ± 18 MPa) and ultimate tensile strength (1042 ± 10 MPa), representing ∼ 90 % and ∼ 62 % improvements over pure 316L, respectively, with reduced ductility. Strengthening arose from grain refinement (Hall–Petch), Orowan looping, and load transfer. These results clarify the particle-size-dependent mechanisms governing microstructure–property relationships in SLM-fabricated metal-matrix-composites (MMCs) and offer guidelines for reinforcement engineering.
{"title":"In situ dissolution–reprecipitation of TiC in SLM-fabricated functionally graded 316L/TiC composites: microstructural evidence and strengthening mechanisms","authors":"Elina Akbarzadeh Chiniforoush , Sasan Yazdani , Mohammad Reza Jandaghi , Johan Moverare","doi":"10.1016/j.matdes.2025.115009","DOIUrl":"10.1016/j.matdes.2025.115009","url":null,"abstract":"<div><div>This study provides the first direct multimodal evidence of dissolution and reprecipitation of TiC during selective laser melting (SLM) of 316L/TiC composites. Functionally graded samples were fabricated with a three-layer architecture: pure 316L SS (L1), 316L + 10 wt% fine TiC (L2), and 316L + 10 wt% coarse TiC (L3). Defect-free samples thereby enabled an isolated study of the particle-size effects on solidification, phase evolution, and strengthening mechanisms. EBSD revealed a transition from coarse columnar grains in L1 to fully equiaxed grains in L2, driven by TiC-induced heterogeneous nucleation and Zener pinning. High-resolution SEM, XRD, and EDS confirmed two distinct populations of secondary TiC: fragmentation-derived intragranular particles (∼100–300 nm) and nanoscale intergranular precipitates formed via dissolution–reprecipitation. Fine TiC reinforcement yielded the most refined microstructure, with the highest high-angle grain boundary fraction (96.6 %). Fine-TiC composites achieved the highest yield strength (847 ± 18 MPa) and ultimate tensile strength (1042 ± 10 MPa), representing ∼ 90 % and ∼ 62 % improvements over pure 316L, respectively, with reduced ductility. Strengthening arose from grain refinement (Hall–Petch), Orowan looping, and load transfer. These results clarify the particle-size-dependent mechanisms governing microstructure–property relationships in SLM-fabricated metal-matrix-composites (MMCs) and offer guidelines for reinforcement engineering.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 115009"},"PeriodicalIF":7.9,"publicationDate":"2025-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-26DOI: 10.1016/j.matdes.2025.115013
Francesc Canalejo-Codina , Marta Pegueroles , Andrés A. García-Granada , Jordi Martorell , Elazer R. Edelman , Mercedes Balcells
Bioresorbable stents were conceived to revolutionize the treatment of cardiovascular diseases. However, their significant benefits were overshadowed by a higher clotting rate compared to permanent implants. This clinical failure is linked to strain-induced microstructural disruptions during fabrication and implantation, resulting in heterogeneous loss of structural integrity. The non-gradual loss of support, combined with faster, localized polymer deterioration, directly contributes to the clinical failure observed in bioresorbable stents. Leveraging this understanding marks a significant advancement toward their safe reintroduction. However, the extent to which a stent’s stress distribution interacts with the polymer’s microstructure remains understudied.
This study advances the existing knowledge on bioresorbable stents by establishing a framework for comprehending the microstructural properties that emerge from stent fabrication and implantation, ultimately aiming to improve clinical outcomes. The analysis addresses structural degradation and thrombogenicity of the devices, linking these aspects to the microstructural characteristics of various poly(L-lactide-co-ε-caprolactone) stent configurations. The configuration with the polymer microstructure tailored to the stress profile of the stent design presented the best performance. These findings emphasize the critical need to align the as-manufactured material properties with the stress distribution during implantation and provide powerful tools and strategies to cast bioresorbable stents that outperform current cardiovascular stents.
{"title":"Integrating stent design and microstructural characterization to improve clinical outcomes of bioresorbable stents","authors":"Francesc Canalejo-Codina , Marta Pegueroles , Andrés A. García-Granada , Jordi Martorell , Elazer R. Edelman , Mercedes Balcells","doi":"10.1016/j.matdes.2025.115013","DOIUrl":"10.1016/j.matdes.2025.115013","url":null,"abstract":"<div><div>Bioresorbable stents were conceived to revolutionize the treatment of cardiovascular diseases. However, their significant benefits were overshadowed by a higher clotting rate compared to permanent implants. This clinical failure is linked to strain-induced microstructural disruptions during fabrication and implantation, resulting in heterogeneous loss of structural integrity. The non-gradual loss of support, combined with faster, localized polymer deterioration, directly contributes to the clinical failure observed in bioresorbable stents. Leveraging this understanding marks a significant advancement toward their safe reintroduction. However, the extent to which a stent’s stress distribution interacts with the polymer’s microstructure remains understudied.</div><div>This study advances the existing knowledge on bioresorbable stents by establishing a framework for comprehending the microstructural properties that emerge from stent fabrication and implantation, ultimately aiming to improve clinical outcomes. The analysis addresses structural degradation and thrombogenicity of the devices, linking these aspects to the microstructural characteristics of various poly(L-lactide-co-ε-caprolactone) stent configurations. The configuration with the polymer microstructure tailored to the stress profile of the stent design presented the best performance. These findings emphasize the critical need to align the as-manufactured material properties with the stress distribution during implantation and provide powerful tools and strategies to cast bioresorbable stents that outperform current cardiovascular stents.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 115013"},"PeriodicalIF":7.9,"publicationDate":"2025-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-26DOI: 10.1016/j.matdes.2025.114977
Muchao Qu , Hongji Chen , Jinfeng Cai , Jinchuan Liu , Guanda Yang , Jian Liu , Li Zhou , Dezhi Zhu , Fritjof Nilsson
This study introduces a ternary composite system based on silicone, carbon black (CB), and liquid metal (LM) gallium. Despite extensive studies on LM/elastomer systems, most have primarily focused on mechanical reinforcement or thermal conductivity, while a systematic understanding of their electrical modeling and electromagnetic shielding performance remains insufficient. Therefore, we utilized silicone as an elastomeric matrix, CB as conductive nanofillers, and gallium as a conductive metallic phase, a flexible composite with enhanced multifunctional performance is realized. Shear dispersion during fabrication induces a unique star-like architecture of gallium, which, together with the conductive CB network, facilitates the formation of efficient and continuous electrical pathways. The resulting composites exhibit notable improvements in mechanical strength, strain-dependent resistive response, and electromagnetic interference (EMI) shielding capabilities. In particular, the optimized composite achieves an EMI shielding effectiveness of ∼35 dB in the X-band, while maintaining stable strain sensing performance over 1000 cycles at 30 % strain. A systematic investigation into the influence of gallium concentration elucidates the correlation between microstructural evolution and the composite’s physical and electromagnetic behavior. This work not only deepens the understanding of LM-based ternary composites but also highlights their potential for advanced applications in flexible sensing, wearable electronics, and EMI attenuation technologies.
{"title":"Composition-dependent structural evolution of ternary CB/Ga/Silicone composites for synergistic sensing and comprehensive EMI shielding","authors":"Muchao Qu , Hongji Chen , Jinfeng Cai , Jinchuan Liu , Guanda Yang , Jian Liu , Li Zhou , Dezhi Zhu , Fritjof Nilsson","doi":"10.1016/j.matdes.2025.114977","DOIUrl":"10.1016/j.matdes.2025.114977","url":null,"abstract":"<div><div>This study introduces a ternary composite system based on silicone, carbon black (CB), and liquid metal (LM) gallium. Despite extensive studies on LM/elastomer systems, most have primarily focused on mechanical reinforcement or thermal conductivity, while a systematic understanding of their electrical modeling and electromagnetic shielding performance remains insufficient. Therefore, we utilized silicone as an elastomeric matrix, CB as conductive nanofillers, and gallium as a conductive metallic phase, a flexible composite with enhanced multifunctional performance is realized. Shear dispersion during fabrication induces a unique star-like architecture of gallium, which, together with the conductive CB network, facilitates the formation of efficient and continuous electrical pathways. The resulting composites exhibit notable improvements in mechanical strength, strain-dependent resistive response, and electromagnetic interference (EMI) shielding capabilities. In particular, the optimized composite achieves an EMI shielding effectiveness of ∼35 dB in the X-band, while maintaining stable strain sensing performance over 1000 cycles at 30 % strain. A systematic investigation into the influence of gallium concentration elucidates the correlation between microstructural evolution and the composite’s physical and electromagnetic behavior. This work not only deepens the understanding of LM-based ternary composites but also highlights their potential for advanced applications in flexible sensing, wearable electronics, and EMI attenuation technologies.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 114977"},"PeriodicalIF":7.9,"publicationDate":"2025-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-26DOI: 10.1016/j.matdes.2025.115018
Piyali Chatterjee , Daniel Piecha , Mateusz Szczerba , Mateusz M. Marzec , Marcin Pisarek , Tomasz Uchacz , Grzegorz D. Sulka
Only a few strategies have been reported to overcome the limitations of tungsten trioxide (n-WO3) photoanode fabricated via anodic oxidation of metallic tungsten foil for efficient photoelectrochemical (PEC) water splitting. This work presents a method for synthesizing pure iron tungstate (p-FeWO4) nanoparticles (∼37 nm size) via a hydrothermal process, followed by their application as co-catalyst through spin coating onto porous anodic WO3 (∼351 nm total thickness). A thin FeWO4 layer was essential to ensure sufficient light exposure of the underlaying WO3 during front illumination. Due to the high crystallinity of FeWO4 and the favorable band alignment between these two semiconductors, the modified WO3 exhibited suppressed charge carrier recombination and enhanced charge separation and transfer. As a result, the modified photoanode achieved a stable photocurrent density up to 1.5 times higher than that of pristine WO3 under simulated solar illumination with practically unchanged onset potential. Notably, performance under visible light also improved, although no significant red shift of absorption edge (band gap of ∼2.9 eV) was noted. The results demonstrated high reproducibility, and we emphasize the significance of this approach for WO3 photoanodes on opaque substrates, as it should be easily adaptable to WO3 electrodes fabricated by any technique.
{"title":"Enhanced photoelectrochemical water splitting activity of porous anodic WO3 photoelectrodes decorated with FeWO4 nanoparticles","authors":"Piyali Chatterjee , Daniel Piecha , Mateusz Szczerba , Mateusz M. Marzec , Marcin Pisarek , Tomasz Uchacz , Grzegorz D. Sulka","doi":"10.1016/j.matdes.2025.115018","DOIUrl":"10.1016/j.matdes.2025.115018","url":null,"abstract":"<div><div>Only a few strategies have been reported to overcome the limitations of tungsten trioxide (n-WO<sub>3</sub>) photoanode fabricated via anodic oxidation of metallic tungsten foil for efficient photoelectrochemical (PEC) water splitting. This work presents a method for synthesizing pure iron tungstate (p-FeWO<sub>4</sub>) nanoparticles (∼37 nm size) via a hydrothermal process, followed by their application as co-catalyst through spin coating onto porous anodic WO<sub>3</sub> (∼351 nm total thickness). A thin FeWO<sub>4</sub> layer was essential to ensure sufficient light exposure of the underlaying WO<sub>3</sub> during front illumination. Due to the high crystallinity of FeWO<sub>4</sub> and the favorable band alignment between these two semiconductors, the modified WO<sub>3</sub> exhibited suppressed charge carrier recombination and enhanced charge separation and transfer. As a result, the modified photoanode achieved a stable photocurrent density up to 1.5 times higher than that of pristine WO<sub>3</sub> under simulated solar illumination with practically unchanged onset potential. Notably, performance under visible light also improved, although no significant red shift of absorption edge (band gap of ∼2.9 eV) was noted. The results demonstrated high reproducibility, and we emphasize the significance of this approach for WO<sub>3</sub> photoanodes on opaque substrates, as it should be easily adaptable to WO<sub>3</sub> electrodes fabricated by any technique.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 115018"},"PeriodicalIF":7.9,"publicationDate":"2025-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-26DOI: 10.1016/j.matdes.2025.114986
Jinfeng Tong , Yuyan Wang , Youde Cao , Bing Liang , Kexiao Yu
Bone defects resulting from trauma, tumor resection, or infection constitute significant clinical challenges in orthopedics, frequently causing compromised healing and elevated complication rates. While inflammatory responses and reactive oxygen species (ROS) are essential for initiating bone repair, their excessive persistence disrupts osteoblast-osteoclast homeostasis, suppresses angiogenesis, and ultimately impedes osseous regeneration. Conventional treatments, including autografts, allografts, and synthetic materials (bioceramics/metals), exhibit limitations in biocompatibility, donor availability, and dynamic responsiveness to pathophysiological demands. Innovative polymer-based biomaterials integrating anti-inflammatory, ROS-neutralizing, and angiogenic functions enable precise spatiotemporal modulation of bone microenvironments through synergistic immunoregulation, vascular network formation, and osteogenic differentiation.
This review examines the bone healing process and identifies bioactivators targeting key signaling pathways, including pharmaceuticals, metal ions, growth factors, and exosomes. We highlight advancements in multifunctional polymeric scaffolds, such as stimuli-responsive hydrogels, 3D-printed structures, and nanocomposite networks, which mimic the mechanical properties of the native extracellular matrix (ECM) and enable controlled delivery of bioactivators. Furthermore, we discuss recent progress and challenges in clinical translation, including large-scale production, sterilization techniques, and regulatory barriers. This review aims to provide researchers and clinicians with comprehensive insights to advance the development of next-generation polymers for bone regeneration.
{"title":"Advanced bio-polymers for bone regeneration: Harnessing anti-inflammatory, oxidative stress, and pro-angiogenic strategies","authors":"Jinfeng Tong , Yuyan Wang , Youde Cao , Bing Liang , Kexiao Yu","doi":"10.1016/j.matdes.2025.114986","DOIUrl":"10.1016/j.matdes.2025.114986","url":null,"abstract":"<div><div>Bone defects resulting from trauma, tumor resection, or infection constitute significant clinical challenges in orthopedics, frequently causing compromised healing and elevated complication rates. While inflammatory responses and reactive oxygen species (ROS) are essential for initiating bone repair, their excessive persistence disrupts osteoblast-osteoclast homeostasis, suppresses angiogenesis, and ultimately impedes osseous regeneration. Conventional treatments, including autografts, allografts, and synthetic materials (bioceramics/metals), exhibit limitations in biocompatibility, donor availability, and dynamic responsiveness to pathophysiological demands. Innovative polymer-based biomaterials integrating anti-inflammatory, ROS-neutralizing, and angiogenic functions enable precise spatiotemporal modulation of bone microenvironments through synergistic immunoregulation, vascular network formation, and osteogenic differentiation.</div><div>This review examines the bone healing process and identifies bioactivators targeting key signaling pathways, including pharmaceuticals, metal ions, growth factors, and exosomes. We highlight advancements in multifunctional polymeric scaffolds, such as stimuli-responsive hydrogels, 3D-printed structures, and nanocomposite networks, which mimic the mechanical properties of the native extracellular matrix (ECM) and enable controlled delivery of bioactivators. Furthermore, we discuss recent progress and challenges in clinical translation, including large-scale production, sterilization techniques, and regulatory barriers. This review aims to provide researchers and clinicians with comprehensive insights to advance the development of next-generation polymers for bone regeneration.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 114986"},"PeriodicalIF":7.9,"publicationDate":"2025-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-25DOI: 10.1016/j.matdes.2025.115023
Jiaxiang Liu , Linping He , Da Li , Xin Wang , Lin Liu , Jianqing Lin , Kaiyan Huang
Medicine counterfeiting is a serious issue worldwide, involving potentially devastating health repercussions. Optical technologies have emerged as a promising solution for anti-counterfeiting tagging of pharmaceuticals. However, conventional systems relying on human-visible authentication modes remain susceptible to trial-and-error decryption, posing security vulnerabilities. To address this limitation, we have developed a novel multi-mode phosphor, Mg3Y2Ge3O12:Bi3+/Pr3+/Yb3+/Er3+ (MYGBP-Yb/Er), featuring distinctive visible and non-visible spectral characteristics for high-security medicine anti-counterfeiting. This material simultaneously demonstrates green up-conversion luminescence (UCL) under 980 nm excitation, red down-shifting luminescence (DSL) upon UV stimulation, and persistent luminescence (PersL) spanning UV to visible spectral regions after UV excitation. The UV PersL component, while completely invisible to human vision, serves as a robust hidden authentication layer that can only be revealed through specialized detection using bandpass filters coupled with charge-coupled device (CCD) cameras. This unique combination of visible and non-visible luminescent features enables the realization of information protection that resists conventional counterfeiting attempts. In addition, changing the doping elements (such as Tb3+ or Ho3+) can achieve the regulation of the luminescence performance. Ultimately, we establish a sophisticated multi-level medicine verification system based on these phosphors, enhancing protection against forgery through its integrated visible authentication and CCD-readable covert security features.
{"title":"Developing multi-mode phosphor with non-visible ranges for advanced anti-counterfeiting in medicine","authors":"Jiaxiang Liu , Linping He , Da Li , Xin Wang , Lin Liu , Jianqing Lin , Kaiyan Huang","doi":"10.1016/j.matdes.2025.115023","DOIUrl":"10.1016/j.matdes.2025.115023","url":null,"abstract":"<div><div>Medicine counterfeiting is a serious issue worldwide, involving potentially devastating health repercussions. Optical technologies have emerged as a promising solution for anti-counterfeiting tagging of pharmaceuticals. However, conventional systems relying on human-visible authentication modes remain susceptible to trial-and-error decryption, posing security vulnerabilities. To address this limitation, we have developed a novel multi-mode phosphor, Mg<sub>3</sub>Y<sub>2</sub>Ge<sub>3</sub>O<sub>12</sub>:Bi<sup>3+</sup>/Pr<sup>3+</sup>/Yb<sup>3+</sup>/Er<sup>3+</sup> (MYGBP-Yb/Er), featuring distinctive visible and non-visible spectral characteristics for high-security medicine anti-counterfeiting. This material simultaneously demonstrates green up-conversion luminescence (UCL) under 980 nm excitation, red down-shifting luminescence (DSL) upon UV stimulation, and persistent luminescence (PersL) spanning UV to visible spectral regions after UV excitation. The UV PersL component, while completely invisible to human vision, serves as a robust hidden authentication layer that can only be revealed through specialized detection using bandpass filters coupled with charge-coupled device (CCD) cameras. This unique combination of visible and non-visible luminescent features enables the realization of information protection that resists conventional counterfeiting attempts. In addition, changing the doping elements (such as Tb<sup>3+</sup> or Ho<sup>3+</sup>) can achieve the regulation of the luminescence performance. Ultimately, we establish a sophisticated multi-level medicine verification system based on these phosphors, enhancing protection against forgery through its integrated visible authentication and CCD-readable covert security features.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 115023"},"PeriodicalIF":7.9,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-25DOI: 10.1016/j.matdes.2025.115002
Dan Yao , Jie Zhang , Jingyu Lei , Zixuan Zhao , Yumei Zhang , Yue Zhao , Jie Pang , Jiang Li
Aiming to address the vibration and noise reduction requirements of large-scale transportation, the latest research advancements in acoustic metamaterials are classified and reviewed based on practical engineering challenges in this paper. First, the noise characteristics of large-scale transportation, including aircraft, high-speed trains, and ships, are summarised, with the challenges posed by space and weight limitations in noise control being highlighted. The latest research developments in acoustic metamaterials are then reviewed, focusing on four major categories: solid locally resonant metamaterials, membrane-type acoustic metamaterials, Helmholtz resonance cavity structures, and space-coiling metamaterials. Considering the coupling mechanisms among different structures, composite structures are additionally included as a fifth category. Furthermore, adaptive and multifunctional acoustic metamaterials are introduced as emerging directions. Subsequently, the feasibility of these acoustic metamaterials for noise reduction in large-scale transportation is evaluated, and the practical applications of the five established categories are summarised. Finally, challenges and future research directions in the use of acoustic metamaterials for vibration and noise reduction in large-scale transportation are outlined.
{"title":"A comprehensive review of acoustic metamaterials: Applications and challenges for lightweight noise control in large-scale transportation","authors":"Dan Yao , Jie Zhang , Jingyu Lei , Zixuan Zhao , Yumei Zhang , Yue Zhao , Jie Pang , Jiang Li","doi":"10.1016/j.matdes.2025.115002","DOIUrl":"10.1016/j.matdes.2025.115002","url":null,"abstract":"<div><div>Aiming to address the vibration and noise reduction requirements of large-scale transportation, the latest research advancements in acoustic metamaterials are classified and reviewed based on practical engineering challenges in this paper. First, the noise characteristics of large-scale transportation, including aircraft, high-speed trains, and ships, are summarised, with the challenges posed by space and weight limitations in noise control being highlighted. The latest research developments in acoustic metamaterials are then reviewed, focusing on four major categories: solid locally resonant metamaterials, membrane-type acoustic metamaterials, Helmholtz resonance cavity structures, and space-coiling metamaterials. Considering the coupling mechanisms among different structures, composite structures are additionally included as a fifth category. Furthermore, adaptive and multifunctional acoustic metamaterials are introduced as emerging directions. Subsequently, the feasibility of these acoustic metamaterials for noise reduction in large-scale transportation is evaluated, and the practical applications of the five established categories are summarised. Finally, challenges and future research directions in the use of acoustic metamaterials for vibration and noise reduction in large-scale transportation are outlined.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 115002"},"PeriodicalIF":7.9,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-25DOI: 10.1016/j.matdes.2025.115027
Jianming Huang , Xianming Peng , Yue Wang , Kaiyue Zhou , Yonder Berencén , Yong Yan , Tao Zheng , Wenlong Chen , Nengjie Huo , Zhaoqiang Zheng , Bing Wang , Lei An , Duanyang Liu , Zuxin Chen , Mengmeng Yang , Wei Gao
The pursuit of photodetectors integrating programmable logic operations and on-chip processing has emerged as a transformative frontier, driving innovations in high-performance vision systems. Two-dimensional semimetal/semiconductor heterojunctions offer a unique platform for multifunctional devices due to their van der Waals (vdWs)-coupled sharp interfaces. Here, we fabricate air-stable PtTe2/WSe2 heterojunctions, enabling polarity-switchable conduction, bidirectional rectification (rectification ratio > 107), and photovoltaic response (342/−476 mA/W at 635 nm) via gate-modulated interfacial electric fields. Due to the bottom-PtTe2′s screening effect and vdWs gap in the top/suspended WSe2, the uniform spatial distribution of photocurrent enables in-situ reconfigurability, making it highly suitable for array construction and responsivity weight calculations. Critically, the Schottky barrier diode enables photoelectric logic gate operations (XNOR, NAND, AND, OR) under modulated drain-gate biasing conditions, which indicates the universal programmability by parameterize the high/low-level criteria and increase/decrease the input window. By tuning optoelectronic kernel weight through the linear relationship between responsivity and gate voltage, analog-based in-sensor computing is validated via image classification, achieving 97% accuracy. The reconfigured weight update further demonstrates capabilities in image sharpening and noise suppression utilizing bidirectional response at 405/635/808 nm wavelengths. Collectively, the codesign establishes a compelling pathway to enhance intelligent sensing and computing.
{"title":"Polarity-switchable logic and in-sensor computing with gate-tunable two-dimensional PtTe2/WSe2 heterojunctions","authors":"Jianming Huang , Xianming Peng , Yue Wang , Kaiyue Zhou , Yonder Berencén , Yong Yan , Tao Zheng , Wenlong Chen , Nengjie Huo , Zhaoqiang Zheng , Bing Wang , Lei An , Duanyang Liu , Zuxin Chen , Mengmeng Yang , Wei Gao","doi":"10.1016/j.matdes.2025.115027","DOIUrl":"10.1016/j.matdes.2025.115027","url":null,"abstract":"<div><div>The pursuit of photodetectors integrating programmable logic operations and on-chip processing has emerged as a transformative frontier, driving innovations in high-performance vision systems. Two-dimensional semimetal/semiconductor heterojunctions offer a unique platform for multifunctional devices due to their van der Waals (vdWs)-coupled sharp interfaces. Here, we fabricate air-stable PtTe<sub>2</sub>/WSe<sub>2</sub> heterojunctions, enabling polarity-switchable conduction, bidirectional rectification (rectification ratio > 10<sup>7</sup>), and photovoltaic response (342/−476 mA/W at 635 nm) via gate-modulated interfacial electric fields. Due to the bottom-PtTe<sub>2</sub>′s screening effect and vdWs gap in the top/suspended WSe<sub>2</sub>, the uniform spatial distribution of photocurrent enables in-situ reconfigurability, making it highly suitable for array construction and responsivity weight calculations. Critically, the Schottky barrier diode enables photoelectric logic gate operations (XNOR, NAND, AND, OR) under modulated drain-gate biasing conditions, which indicates the universal programmability by parameterize the high/low-level criteria and increase/decrease the input window. By tuning optoelectronic kernel weight through the linear relationship between responsivity and gate voltage, analog-based in-sensor computing is validated via image classification, achieving 97% accuracy. The reconfigured weight update further demonstrates capabilities in image sharpening and noise suppression utilizing bidirectional response at 405/635/808 nm wavelengths. Collectively, the codesign establishes a compelling pathway to enhance intelligent sensing and computing.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"260 ","pages":"Article 115027"},"PeriodicalIF":7.9,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-25DOI: 10.1016/j.matdes.2025.114978
Jingjing Wu , Hongli Zhao , Xiancheng Wang , Yunzhu Chen , Zhihua Qiao , Dandan Song , Weiliang Zeng , Zidi Yu , Kai Yang , Bin Liu
Nasal cartilage defects often require grafting, but donor site morbidity and limited autologous supply remain major challenges. In this study, we developed a functional composite hydrogel based on photo-crosslinked silk methacrylate (SilMA) physically incorporated with cellulose nanocrystals (CNCs) and polyethylene glycol–modified kartogenin (KGN-PEG-MAL). The silk-based backbone provided photocurability, cellulose nanocrystals reinforced mechanical stability, and the modified kartogenin enabled controlled release and stimulation of stem cell chondrogenesis. In vitro, the hydrogel supported adipose-derived stem cell proliferation and migration, while enhancing chondrogenic differentiation, as confirmed by Alcian blue staining and increased expression of SOX9, ACAN, and COL2A1. In vivo, biocompatibility and matrix deposition were verified in a subcutaneous rat model, and chondrogenic regenerative capacity was further confirmed in a standard orthotopic cartilage defect model. These results demonstrate that the composite hydrogel provides a biocompatible and mechanically stable microenvironment capable of promoting hyaline-like cartilage formation. Designed for nasal cartilage regeneration, this hydrogel system shows translational potential as an alternative to autologous cartilage grafts in reconstructive applications.
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