Materials Today最新文献_第4页

Carbon monoxide detection, separation, and conversion into valuable products via smart nanomaterials: Challenges and perspectives

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-03-01 DOI: 10.1016/j.mattod.2024.12.020

Kirti Bhardwaj , Deepak Kumar , Viswanathan S. Saji , Vishal Singh , Youngmin Lee , Sejoon Lee , Dawid Janas , Yogendra Kumar Mishra , Sanjeev Kumar Sharma

{"title":"Carbon monoxide detection, separation, and conversion into valuable products via smart nanomaterials: Challenges and perspectives","authors":"Kirti Bhardwaj , Deepak Kumar , Viswanathan S. Saji , Vishal Singh , Youngmin Lee , Sejoon Lee , Dawid Janas , Yogendra Kumar Mishra , Sanjeev Kumar Sharma","doi":"10.1016/j.mattod.2024.12.020","DOIUrl":"10.1016/j.mattod.2024.12.020","url":null,"abstract":"<div><div>Developing efficient detectors for noxious carbon monoxide (CO) in the environment and separating CO from other gases for converting concentrated CO to energy sources with minimal energy input is vital for sustainable progress and safeguarding human life. This comprehensive review covers information on CO and its sources, permissible levels, impacts, corrective measures, and monitoring through nanostructured (NS) materials. Furthermore, the latest achievements in developing ideal nanomaterials and appropriate procedures to separate and convert this hazardous and persistent pollutant are carefully considered. In addition to highlighting the knowledge gaps that could guide further investigations, this focused contribution summarizes the strict requirements for practical applications in the field. This review will be a valuable guide for researchers and industrialists interested in enhancing CO detection, separation, and conversion for industrial implementation, including environmentalists, policymakers, and sustainable development goal (SDG) representatives.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"83 ","pages":"Pages 404-445"},"PeriodicalIF":21.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An architecting binder derived from Antarctic red algae to accelerate sulfur redox kinetics in Li–S batteries

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-03-01 DOI: 10.1016/j.mattod.2025.01.006

Han Young Jung , Hyun Wook Jung , Man Hyung Koo , Tae Hwa Hong , Dong Jun Kim , Jung Seok Lee , Yoon Hak Lee , Hyeonji Jang , Jin-Hyoung Kim , Sanghee Kim , Eun Jin Heo , Seulah Lee , Ui Joung Youn , Jung Tae Lee

{"title":"An architecting binder derived from Antarctic red algae to accelerate sulfur redox kinetics in Li–S batteries","authors":"Han Young Jung , Hyun Wook Jung , Man Hyung Koo , Tae Hwa Hong , Dong Jun Kim , Jung Seok Lee , Yoon Hak Lee , Hyeonji Jang , Jin-Hyoung Kim , Sanghee Kim , Eun Jin Heo , Seulah Lee , Ui Joung Youn , Jung Tae Lee","doi":"10.1016/j.mattod.2025.01.006","DOIUrl":"10.1016/j.mattod.2025.01.006","url":null,"abstract":"<div><div>Volume changes during charge/discharge cycles can lead to substantial cracking, disrupting electron and ion transfer channels, and hindering the performance of lithium–sulfur (Li–S) batteries. Binders are crucial for mitigating these issues because they preserve the structural integrity of electrodes and ensure reliable operation. Herein, this study presents the first report of a hybrid carrageenan, Antarctic macroalgae <em>Curdiea racovitzae</em>-derived polysaccharide (CRP), consisting of a diverse-blocked copolymer including kappa, iota, mu, nu carrageenans, and porphyran as Li–S battery binders. CRP prevents binder agglomeration and enables the electrode to form a uniform 3D-network structure reminiscent of an ant tunnel, enhancing the electrolyte permeability and utilization of the sulfur species. Additionally, the abundant functional groups in CRP, such as sulfate and hydroxyl groups, facilitate efficient Li-ion transport. By leveraging these properties, the CRP-based sulfur electrode achieves a high initial capacity of ∼1500 mAh g<sup>−1</sup> at 0.1C, approximately 90 % of the theoretical capacity, and demonstrates superior cycle stability at 1C. Moreover, the Li<sub>2</sub>S nucleation rate was nearly 100 times higher compared to the PVDF-based sulfur electrode. The incorporation of a sustainable CRP binder in Li–S batteries marks a notable breakthrough, paving the way for future developments in the battery field.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"83 ","pages":"Pages 231-241"},"PeriodicalIF":21.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601327","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

A novel breakthrough in the invention, properties, synthesis of covalent heptazine framework for its sustainable applications

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-03-01 DOI: 10.1016/j.mattod.2024.12.003

Asif Hayat , Zeeshan Ajmal , Abdullah Yahya Abdullah Alzahrani , Mohammed H. AL Mughram , Ahmed M. Abu-Dief , Rawan AL-Faze , Asma M. Alenad , Yas Al-Hadeethi , Hamid Ali , S.V. Prabhakar Vattikuti , Yasin Orooji

{"title":"A novel breakthrough in the invention, properties, synthesis of covalent heptazine framework for its sustainable applications","authors":"Asif Hayat , Zeeshan Ajmal , Abdullah Yahya Abdullah Alzahrani , Mohammed H. AL Mughram , Ahmed M. Abu-Dief , Rawan AL-Faze , Asma M. Alenad , Yas Al-Hadeethi , Hamid Ali , S.V. Prabhakar Vattikuti , Yasin Orooji","doi":"10.1016/j.mattod.2024.12.003","DOIUrl":"10.1016/j.mattod.2024.12.003","url":null,"abstract":"<div><div>The development of two-dimensional (2D) covalent heptazine frameworks (CHFs) using heptazine and other molecular elements is becoming more attractive due to their modifiable design and diverse features. In comparison to the conventional experiments approach in practical studies, computation modeling has the advantage of eliminating extraneous and ineffective efforts. This is possible because to the significant advancements in machine resources and more advanced theories, which ultimately leads to faster material formation. CHFs include beneficial features such as diverse synthetic alternatives, high dependability, non-toxicity, simplified organic arrangement, and enhanced structural organization. CHFs have unique properties that make them very suitable for many applications, including the photocatalytic evolution of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), photocatalytic overall water splitting, photooxidation reaction, photoreduction reaction, lithium-ion batteries (LIBs) and selective CO<sub>2</sub> adsorption. In the present article, we provide a concise overview of the different techniques used for the synthesis of CHFs, along with their electronic and simulation characteristics, apparent properties, and potential applications. We plan to offer more information on frequently published photocatalytic processes, particularly their functional processes. To our knowledge, there is currently no review paper available on this dynamic and growing field. This publication will provide valuable scientific information and breakthroughs for material sciences and future researchers.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"83 ","pages":"Pages 331-354"},"PeriodicalIF":21.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601425","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

A multifunctional additive extending the calendar life of Ni-rich cathode-based lithium-ion batteries for electric vehicles

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-03-01 DOI: 10.1016/j.mattod.2024.12.021

Xueqing Min , Li Wang , Min Shen , Guoqiang Ma , Xiangming He

{"title":"A multifunctional additive extending the calendar life of Ni-rich cathode-based lithium-ion batteries for electric vehicles","authors":"Xueqing Min , Li Wang , Min Shen , Guoqiang Ma , Xiangming He","doi":"10.1016/j.mattod.2024.12.021","DOIUrl":"10.1016/j.mattod.2024.12.021","url":null,"abstract":"<div><div>Lithium-ion batteries (LIBs) with Ni-rich cathode are expected to conquer range anxiety for electric vehicles (EVs). However, they suffer from rapid performance fading under inadequate thermal management, particularly during EV applications in summer, due to vigorous parasitic reactions between the Ni-rich materials and the electrolyte and consequent chemical crosstalk at elevated temperature. To address the challenge, a triple-functional additive named triallyl cyanurate (TAC) is proposed in this study, and the mechanism of its function is validated theoretically and experimentally. In detail, TAC builds strong solid electrolyte interphase (SEI) through reduction to protect the anode, forms robust cathode electrolyte interphase (CEI) via oxidation decomposition due to preferable adsorption to restrain the parasitic reactions between the cathode and the electrolyte, and inhibits LiPF<sub>6</sub> hydrolysis to remove HF to lower the corrosivity of the electrolyte. Encouragingly, the TAC-containing electrolyte significantly extends the cycle life of Ah-level pouch cells with various Ni-rich cathodes by 2.5 times at room temperature and 45 °C, as well as extending the high-temperature storage capability by up to 2.8 times. The successful exploration of functional TAC as electrolyte additive presents a promising multi-in-one strategy for additive design, paving a new avenue to boost the application of Ni-rich cathode in LIBs.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"83 ","pages":"Pages 157-165"},"PeriodicalIF":21.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601854","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

Phase transition in two-dimensional monolayer (1L)-molybdenum disulfide induced by atomic S-basal plane gliding via synchrotron X-ray monochromatic beam radiation for superior electronic performance

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-02-27 DOI: 10.1016/j.mattod.2025.02.001

Mayur Chaudhary , Aswin Kumar Anbalagan , Kai-Wei Chuang , Sumayah Shakil Wani , Zi-Liang Yang , Bo-Chao Huang , Shaham Quadir , Chieh-Ting Chen , Ruei-Hong Cyu , Bushra Rehman , Ming-Jin Liu , Ching-Yu Chiang , Li-Chyong Chen , Kuei-Hsien Chen , Peter V. Sushko , Chih-Hao Lee , Ya-Ping Chiu , Yu-Lun Chueh

{"title":"Phase transition in two-dimensional monolayer (1L)-molybdenum disulfide induced by atomic S-basal plane gliding via synchrotron X-ray monochromatic beam radiation for superior electronic performance","authors":"Mayur Chaudhary , Aswin Kumar Anbalagan , Kai-Wei Chuang , Sumayah Shakil Wani , Zi-Liang Yang , Bo-Chao Huang , Shaham Quadir , Chieh-Ting Chen , Ruei-Hong Cyu , Bushra Rehman , Ming-Jin Liu , Ching-Yu Chiang , Li-Chyong Chen , Kuei-Hsien Chen , Peter V. Sushko , Chih-Hao Lee , Ya-Ping Chiu , Yu-Lun Chueh","doi":"10.1016/j.mattod.2025.02.001","DOIUrl":"10.1016/j.mattod.2025.02.001","url":null,"abstract":"<div><div>Here, we report a novel approach to reduce the channel resistance by inducing a phase transition behavior from 2H to 1T in a monolayer MoS<sub>2</sub> (1L-MoS<sub>2</sub>) by a synchrotron X-ray monochromatic beam (mono-beam) radiation. The effects of the biphase structure by the mono-beam on the 1L-MoS<sub>2</sub> film were investigated using Raman spectra, photoluminescence (PL) spectra, scanning tunneling microscopy, and scanning tunneling spectroscopy, respectively. Through material characterization, we identified that the lateral sliding of S-vacancies along the S-plane in the 1L-MoS<sub>2</sub> is the key reason for the origin of unidirectional phase transition. The precise phase engineering triggered by the mono-beam radiation process allows the realization of field-effect transistors (FET) with 2X improvement in mobility toward a high on/off ratio (∼10<sup>8</sup>) and a near-ideal subthreshold swing of ∼88 mV per decade. The validity of the phase engineering could be further extended for its application as a memory device, exhibiting a gate tunable conduction modulation behavior and a high resistance ratio of ∼ 10<sup>2</sup> at a gate bias of 5 V with endurance of ∼100 cycles. Furthermore, an artificial neural network using the synaptic weight update with accuracy of ∼93 % was achieved.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"84 ","pages":"Pages 28-38"},"PeriodicalIF":21.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644951","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

Advances in organoid-on-a-chip for recapitulation of human physiological events

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-02-19 DOI: 10.1016/j.mattod.2025.02.002

Bumjun Park , Junseo Park , Sanghun Han , Taeyeon Kwon , Ju Yong Sung , Jigyeong Kim , Moein Safarkhani , Kyung-Hyun Min , Eun-Ho Lee , Sung-Min Kang , Yun Suk Huh

{"title":"Advances in organoid-on-a-chip for recapitulation of human physiological events","authors":"Bumjun Park , Junseo Park , Sanghun Han , Taeyeon Kwon , Ju Yong Sung , Jigyeong Kim , Moein Safarkhani , Kyung-Hyun Min , Eun-Ho Lee , Sung-Min Kang , Yun Suk Huh","doi":"10.1016/j.mattod.2025.02.002","DOIUrl":"10.1016/j.mattod.2025.02.002","url":null,"abstract":"<div><div>The transition to 3D cell culture has garnered attention because it offers accurate information for the development of new drugs, drug disease modeling, cancer treatment, and personalized medicine research, which is important for providing human-like physiological environment-mimicked <em>in vivo</em> models by replacing conventional cell culture systems. In particular, organoids form complex structures of various organs derived from stem cells that involve the convergence of diverse heterogeneous technologies to imitate a more accurate internal body environment. In this review, we discuss trends in organoid-on-a-chip, which can precisely mimic organ-specific functions and disease mechanisms by providing real-time controllable dynamic culture environments by combining organoid culture and microfluidic systems. Organoid-on-a-chip is an innovative platform that precisely recapitulate the physiological environments of the human body by integrating the complex structure of 3D organoids with microfluidic system. The culture of organoids within the microfluidic platform is demonstrated by evaluating key parameters such as cell composition, extracellular matrix (ECM), and synthetic environmental factors. The organoid-on-a-chip further implements the structural and functional features of different organs including static and dynamic models, which provide physiological microenvironments to address the ethical concerns of <em>in vivo</em> experiments. In particular, recent advances in multi organoid-on-a-chip are introduced to analyze metabolism and toxicity of drugs through organ to organ interconnections, elucidating the potential to achieve human-on-a-chip technologies. Therefore, organoid-on-a-chip platforms are expected to revolutionize biomedical research and personalized medicine by accurately reproducing the human environment <em>in vitro</em>.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"84 ","pages":"Pages 75-94"},"PeriodicalIF":21.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644971","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

An ultrasound-responsive hydrogel with piezoelectric-enhanced electrokinetic effect accelerates neurovascular regeneration for diabetic wound healing

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-02-18 DOI: 10.1016/j.mattod.2025.02.003

Fang Wang , Jiajun Qiu , Shiwei Guan , Shuhan Chen , Xiaoshuang Nie , Zhengqian Fu , Fang-Zhou Yao , Wen Gong , Ke Wang , Xuanyong Liu

{"title":"An ultrasound-responsive hydrogel with piezoelectric-enhanced electrokinetic effect accelerates neurovascular regeneration for diabetic wound healing","authors":"Fang Wang , Jiajun Qiu , Shiwei Guan , Shuhan Chen , Xiaoshuang Nie , Zhengqian Fu , Fang-Zhou Yao , Wen Gong , Ke Wang , Xuanyong Liu","doi":"10.1016/j.mattod.2025.02.003","DOIUrl":"10.1016/j.mattod.2025.02.003","url":null,"abstract":"<div><div>Diabetic wound healing is hindered by the critical effects of poor local vascularization, peripheral neuropathy, and bacterial infection, which remains a formidable challenge. Available wound dressings suffer from limited therapeutic efficacy owing to the inadequate addressing of neurovascular lesions. Herein, an ultrasound-responsive composite hydrogel composed of a gelatin/polyvinyl alcohol (PVA) interpenetrating polymer network doped with piezoelectric (K,Na)NbO<sub>3</sub> (KNN) nanocrystals and reduced graphene oxide was rationally designed to realize sonoelectric conversion to accelerate diabetic wound healing by facilitating local neurovascular regeneration. The composite hydrogels present exceptional self-healing, skin-adhesive, and conductive properties. More encouragingly, this hydrogel is endowed with excellent sonoelectric conversion performance by piezoelectric-enhanced electrokinetic effect under ultrasound irradiation. The results <em>in vitro</em> and <em>in vivo</em> demonstrate that the composite hydrogel combined with ultrasound irradiation can enhance the angiogenesis of endothelial cells, upregulate the neurotrophic effects of Schwann cells to support neurite growth, and inhibit bacterial activities, resulting in significant local angiogenesis and nerve regeneration in diabetic wounds. This strategy offers an efficacious approach and leads the development of electroactive biomaterials for diabetic wound treatment.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"84 ","pages":"Pages 48-64"},"PeriodicalIF":21.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644968","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

Additively manufactured liquid metal–based piezoresistive device with dual functions of force sensing and mechanical energy absorption

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-02-13 DOI: 10.1016/j.mattod.2025.01.018

Ruiying Luo , Hongzhi Wu , Yijia Liu , Chunze Yan , Kun Zhou , Yusheng Shi

{"title":"Additively manufactured liquid metal–based piezoresistive device with dual functions of force sensing and mechanical energy absorption","authors":"Ruiying Luo , Hongzhi Wu , Yijia Liu , Chunze Yan , Kun Zhou , Yusheng Shi","doi":"10.1016/j.mattod.2025.01.018","DOIUrl":"10.1016/j.mattod.2025.01.018","url":null,"abstract":"<div><div>Although liquid metals are renowned for their exceptional stimulus-responsive properties, their potential for functionalization remains constrained when relying solely on simple deformations. Recent progress in additive manufacturing has enabled the simultaneous programming of both materials and structures, facilitating the development of various functional devices based on liquid metals. However, these devices typically exhibit only a single functionality. This work proposes an approach for the fabrication of multi-functional devices by uniformly coating GaIn liquid metal onto the surface of lattice structures produced via laser powder bed fusion. The resulting flexible piezoresistive device not only responds to pressure by altering its resistance but also exhibits significant mechanical energy absorption capabilities. Through comprehensive analysis of the device’s sensing performance and resistance variation during structural densification, we observed outstanding characteristics, including high sensitivity, a rapid response time of 58 ms, a maximum mechanical energy absorption capacity of 40.1 kJ·m<sup>−3</sup>, and a cycle life exceeding 12,000 cycles. Notably, a sudden change in resistance consistently occurs during the lattice structure’s densification process, making the device highly effective for protecting delicate components. This work extends beyond the intrinsic stimulus-responsive characteristics of liquid metals, presenting a strategy in the design and manufacturing of piezoresistive devices through material and structural innovation, with promising potential for a wide array of applications.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"84 ","pages":"Pages 65-74"},"PeriodicalIF":21.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644970","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

Enabling 3D printability and vascular morphogenesis with double network dynamic hydrogels

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-02-12 DOI: 10.1016/j.mattod.2025.01.019

Runze Xu , Bohan Dou , Shuang Yu , Ziyu Wang , Yanli Zhang , Ling Leng , Liliang Ouyang , Wei Sun

{"title":"Enabling 3D printability and vascular morphogenesis with double network dynamic hydrogels","authors":"Runze Xu , Bohan Dou , Shuang Yu , Ziyu Wang , Yanli Zhang , Ling Leng , Liliang Ouyang , Wei Sun","doi":"10.1016/j.mattod.2025.01.019","DOIUrl":"10.1016/j.mattod.2025.01.019","url":null,"abstract":"<div><div>Hydrogels are crucial biomaterial candidates for tissue engineering and biofabrication applications. The matrix dynamics of hydrogels have recently been demonstrated to contribute to vascular morphogenesis, which is significant for tissue vascularization. However, such dynamic hydrogels are usually mechanically non-stable during culture due to bonding dissociation and cell-mediated degradation, which hinder their usage in advanced biofabricaiton technologies, such as 3D bioprinting. Here, we introduce a double-network dynamic hydrogel (DNDH) bioink strategy to integrate the structural printability, stability, and induction of vascular morphogenesis. Specifically, we synthesize a gelatin-based bioink that is composed of a hydrazone crosslinked dynamic hydrogel network and a methacrylate crosslinked non-dynamic hydrogel network. We demonstrate that our optimized DNDH formulation can be 3D printed into customized structures while retaining structural stability for weeks. Moreover, the DNDH exhibits matrix dynamics with a much shorter stress relaxation time than the non-dynamic counterpart, which is demonstrated to trigger vascular morphogenesis through cell-matrix interactions in a stiffness-independent way. The inclusion of biochemical cues in the matrix and co-culture with supporting cells further enhances the formation of vascular networks and confirms the advantages of DNDH over its non-dynamic counterpart. The <em>in vivo</em> studies further confirm the importance of matrix dynamics in vascularization promotion. Our work provides a generalizable and easy-to-use approach to introduce matrix dynamics to bioinks, which could expand the capability of dynamic hydrogels in biofabrication scenarios.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"84 ","pages":"Pages 10-27"},"PeriodicalIF":21.1,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644973","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

High-resolution 3D printed strain sensor with superb stretchability and sensitivity: Unveiling the potential of melt electrowriting

IF 21.1 1区材料科学

Materials Today Pub Date : 2025-02-07 DOI: 10.1016/j.mattod.2025.01.017

Longping Nie , Yue Sun , Xin Ming , Zhen Xu , Xiangyu Ye , Tao Liu , Xinbo Ding , Lei Du , Jiangtao Xu , Huaizhong Xu

{"title":"High-resolution 3D printed strain sensor with superb stretchability and sensitivity: Unveiling the potential of melt electrowriting","authors":"Longping Nie , Yue Sun , Xin Ming , Zhen Xu , Xiangyu Ye , Tao Liu , Xinbo Ding , Lei Du , Jiangtao Xu , Huaizhong Xu","doi":"10.1016/j.mattod.2025.01.017","DOIUrl":"10.1016/j.mattod.2025.01.017","url":null,"abstract":"<div><div>Recently, flexible strain sensors have attracted considerable attention due to their outstanding adaptability in applications such as human motion detection, health monitoring, and human–machine interaction. However, achieving strain sensors that integrate both high sensitivity and extensive stretchability remains a notable challenge. Herein, we employed melt electrowriting (MEW), a cutting-edge additive manufacturing technology, to fabricate a thermoplastic polyurethane (TPU) lattice with high-resolution and precisely designed structures. Subsequently, reduced graphene oxide (rGO) was deposited <em>via</em> layer-by-layer self-assembly to impart conductivity and leverage the substrate’s microstructure. Through optimizing structure and parameters, a flexible strain sensor with a high gauge factor (GF = 3,807.8) and a broad working range (up to 140%) has been achieved, representing an exceptional balance of sensitivity and stretchability. The sensor also shows remarkable durability with stable performance and negligible resistance variation after 5,000 cycles of stretching and releasing at 50% strain. Furthermore, the sensor can accurately detect diverse motions, from subtle swallowing actions to large-scale finger and knee bending, underscoring its significant potential for wearable electronics, and highlighting the transformative role of MEW in advancing this technology.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"84 ","pages":"Pages 39-47"},"PeriodicalIF":21.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644366","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