IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202505052

Zequn Han, Mengqian Li, Jinyu Ding, Haohao Duan, Wenxiu Liu, Wensheng Yan, Jun Hu, Junfa Zhu, Yang Pan, Jiaqi Xu, Qingxia Chen, Xingchen Jiao

{"title":"Ultra-Durable Photoreduction of Atmospheric CO2 into Exclusive CO over Cu7Te4 Nanorods with Tellurium Vacancies","authors":"Zequn Han, Mengqian Li, Jinyu Ding, Haohao Duan, Wenxiu Liu, Wensheng Yan, Jun Hu, Junfa Zhu, Yang Pan, Jiaqi Xu, Qingxia Chen, Xingchen Jiao","doi":"10.1002/smll.202505052","DOIUrl":"https://doi.org/10.1002/smll.202505052","url":null,"abstract":"The impact of defects on carbon dioxide (CO2) photoreduction is not always well understood and can be inconsistent at times due to the absence of a clear model. Herein, the clear structure−property relationship between tellurium defects and CO2 photoreduction property is clearly disclosed. As a prototype, an ideal model of Cu7Te4 nanorods with tunable defect concentrations is built, in which the defect type and distribution are verified by electron paramagnetic resonance spectra. Photoluminescence spectra demonstrate the presence of tellurium defects can promote carrier separation rates. In situ, Fourier transform infrared spectroscopy shows that the primary intermediate is the COOH* group, while quasi in situ X-ray photoelectron spectroscopy confirms that Cu atoms serve as the active sites during CO2 photoreduction. Density-functional calculations certify the reduced formation energy of the COOH* intermediate following the introduction of tellurium defects. Consequently, the Cu7Te4 nanorods with more tellurium defects exhibit a carbon monoxide formation rate of 8.74 µL g−1 h−1 with stability of up to 400 h during photoreduction of atmospheric CO2. This performance establishes them as one of the most durable photocatalysts reported under similar conditions to date.","PeriodicalId":228,"journal":{"name":"Small","volume":"32 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202333","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}

引用次数: 0

Competitive Coordination Induced Transformation of Metal-organic Frameworks to 10 nm Scale Nanocrystals 竞争配位诱导金属有机骨架向10纳米尺度纳米晶体的转变

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202500428

Shuang-Long Wang, You Wang, Lei Zhang, Yue-Ru Zhou, Guo-Hong Tao, Ling He

{"title":"Competitive Coordination Induced Transformation of Metal-organic Frameworks to 10 nm Scale Nanocrystals","authors":"Shuang-Long Wang, You Wang, Lei Zhang, Yue-Ru Zhou, Guo-Hong Tao, Ling He","doi":"10.1002/smll.202500428","DOIUrl":"https://doi.org/10.1002/smll.202500428","url":null,"abstract":"Compared to bulk MOFs, nano MOFs have garnered significant attention in the study of porous materials due to their higher bioavailability, dispersibility, and enhanced guest adsorption kinetics. However, the preparation of conventional MOF nanocrystals heavily relies on the precise control of MOF synthesis conditions, which involves high research costs and certain limitations. Herein, a post-synthetic preparation method for MOF nanocrystals based on the competitive coordination-induced effect (CCIE) is proposed, achieving the solution-phase conversion of highly uniform MOF nanocrystals under mild conditions. The coordination bond strengths of acetate and terephthalate with zirconium ions are relatively similar. By introducing ionic liquids, a fully acetate environment is created at room-temperature that conventional solvents/solutions cannot provide, highlighting the competitive coordination ability of acetate. At 60 °C, UiO-66 with an average particle size of 102.5 nm can be converted into highly uniform nanocrystals with an average size of 13.4 nm. The obtained nanocrystals exhibit good dispersibility and possess better adsorption capacity and adsorption kinetics compared to bulk MOFs. These findings provide a simple and feasible strategy for the preparation of MOF nanocrystals allowing their practical application.","PeriodicalId":228,"journal":{"name":"Small","volume":"15 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202338","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}

引用次数: 0

A Biodegradable 2D Metallic MoS2 Genesheet for Synergistic NIR‐II Photothermal Immunotherapy 用于协同NIR - II光热免疫治疗的可生物降解2D金属MoS2基因表

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202502577

Lijuan Zhu, Jie Xu, Junjie Ren, Mei Yang, Changjie Yang, Xiaobo Gao, Alberto Bianco, Ding‐Kun Ji

{"title":"A Biodegradable 2D Metallic MoS2 Genesheet for Synergistic NIR‐II Photothermal Immunotherapy","authors":"Lijuan Zhu, Jie Xu, Junjie Ren, Mei Yang, Changjie Yang, Xiaobo Gao, Alberto Bianco, Ding‐Kun Ji","doi":"10.1002/smll.202502577","DOIUrl":"https://doi.org/10.1002/smll.202502577","url":null,"abstract":"Developing promising biodegradable second near‐infrared (NIR‐II) immune agonists to overcome the insufficient immunogenicity of tumor cells and the poor immune response remains challenging. In this work, a biodegradable “2D genesheet” is explored for synergistic NIR‐II photothermal immunotherapy. The 2D genesheet is large‐scale prepared through flexible supramolecular self‐assembly between metallic‐MoS2 and siRNA. The 2D genesheet not only exhibits an excellent photothermal conversion efficiency up to 56% in the NIR‐II window, but also features unique H2O2‐responsive biodegradability and high biocompatibility. The 2D genesheet can efficiently deliver siRNA(siIDO) to tumor cells and downregulate indoleamine 2,3‐dioxygenase 1 (IDO1) protein expression, exerting intrinsic immune activation and reversing IDO1‐mediated immunosuppression. The spatiotemporal‐controlled NIR‐II phototherapy can elicit systemic immunity by evoking immunogenic cell death, promoting dendritic cell maturation, and increasing T cell infiltration. The bioactive material is able to efficiently inhibit primary and distant tumors, achieving a 100% tumor eradication rate. This study broadens the application prospects of biodegradable NIR‐II immune agonists, overcoming the limitations of current immunotherapeutic modalities.","PeriodicalId":228,"journal":{"name":"Small","volume":"17 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201573","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}

引用次数: 0

Vortex Topology Facilitates Biomimetic Synaptic Plasticity in Potassium Sodium Niobate Lead-Free Ferroelectric Thin Films 漩涡拓扑结构促进铌酸钾钠无铅铁电薄膜的仿生突触可塑性

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202502912

Zhonglei Liu, Jinming Cao, Qiaoling Wang, Hua Hou, Yuhong Zhao

{"title":"Vortex Topology Facilitates Biomimetic Synaptic Plasticity in Potassium Sodium Niobate Lead-Free Ferroelectric Thin Films","authors":"Zhonglei Liu, Jinming Cao, Qiaoling Wang, Hua Hou, Yuhong Zhao","doi":"10.1002/smll.202502912","DOIUrl":"https://doi.org/10.1002/smll.202502912","url":null,"abstract":"Multilevel memristors based on perovskite are promising candidates for high-density storage, and controllable vortex topologies have significant application potential in biomimetic synapses. However, realizing complete and efficient biological synaptic functions that combine memory and computation remains a long-standing challenge. In this paper, by matching synaptic plasticity electric field design, seven types of biological synaptic neuron functions are fully realized for the first time through vortex structures in the potassium sodium niobate thin films. Through the analysis of the phase-field method, it is demonstrated that the domain pattern transformation realized by different functions mainly comes from the energy competition between ferroelastic twin domain walls and different electric field pulses. By analyzing the enhanced signal positions from two opposite sources, it is found for the first time that the ferroelastic twin domain structure simultaneously causes two polarization variants in opposite out-of-plane directions. Based on more than 100 functional regions, under the applied electric field of 0.01 V nm−1, the realized paired pulse facilitation function has a signal enhancement up to 16 times relative to traditional transistors. Both spiking-timing-dependent plasticity and spiking-rate-dependent plasticity achieve exceeding 80% pulse signal recognition performance. This will promote the realization of easily integrated independent biological synaptic neurons in bionics.","PeriodicalId":228,"journal":{"name":"Small","volume":"1 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202318","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}

引用次数: 0

Dual-Ion Synergy Breaks 20% Barrier in Electron Transport Layer-Free Perovskite Solar Modules 双离子协同突破电子输运无层钙钛矿太阳能组件的20%障碍

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202503892

Zezhu Zhou, Nan Wang, Jinguo Cao, Hong Liu, Zihui Liang, Congcong Wu, Dong Yang

{"title":"Dual-Ion Synergy Breaks 20% Barrier in Electron Transport Layer-Free Perovskite Solar Modules","authors":"Zezhu Zhou, Nan Wang, Jinguo Cao, Hong Liu, Zihui Liang, Congcong Wu, Dong Yang","doi":"10.1002/smll.202503892","DOIUrl":"https://doi.org/10.1002/smll.202503892","url":null,"abstract":"Electron transport layer-free (ETL-free) perovskite solar cells (PSCs) represent a promising research direction for the industrial-scale deployment of next-generation technologies. However, achieving efficiency exceeding 20% in ETL-free PSCs requires the incorporation of an intermediate layer between perovskite and electrode, which undermines the fundamental goal of simplified device architecture. Herein, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIMTFSI) is used to passivate perovskite film. This process occurs through distinct enrichment mechanisms involving both the anionic and cationic species of EMIMTFSI, which results in notable enhancements in the efficiency and stability of ETL-free PSCs. Experimental results confirm that EMIM+ and TFSI− interact with uncoordinated iodide and lead ions in the perovskite, respectively. Furthermore, the fluorine in TFSI− forms a hydrogen bond with the N-H group in perovskite. The synergistic effects of these interactions contribute to enhanced crystallization, improved energy level alignment, and reduced defects in perovskite film. As a result, the device achieves an efficiency of 22.08% with excellent stability under environmental and light exposure. Importantly, the ETL-free perovskite solar module with an efficiency of 20.27% is first reported. This study presents a simplified approach to boost the performanceof ETL-free PSCs, providing an effective pave for the cost-effective commercialization of perovskite photovoltaics.","PeriodicalId":228,"journal":{"name":"Small","volume":"45 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202273","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}

引用次数: 0

DNA Nano-Biomaterials Based Futuristic Technologies for Tissue Engineering and Regenerative Therapeutics 基于DNA纳米生物材料的组织工程和再生治疗的未来技术

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202504361

Krupa Kansara, Abdulkhalik Mansuri, Ashutosh Kumar, Dhiraj Bhatia

{"title":"DNA Nano-Biomaterials Based Futuristic Technologies for Tissue Engineering and Regenerative Therapeutics","authors":"Krupa Kansara, Abdulkhalik Mansuri, Ashutosh Kumar, Dhiraj Bhatia","doi":"10.1002/smll.202504361","DOIUrl":"https://doi.org/10.1002/smll.202504361","url":null,"abstract":"The ability to completely repair or regenerate injured tissues or organs and restore their functionality has long been a goal of humankind. The advancements in tissue engineering and regenerative medicine have made this conceivable. With the ability to precisely manipulate nanoscale architectures for designing biomaterials, DNA nanotechnology has emerged as a groundbreaking technique in tissue engineering and regenerative medicine. DNA-based nanostructures are well-suited for directing cellular interactions, delivering therapeutic drugs, and mimicking extracellular matrix components due to their exceptional biocompatibility, programmability, and molecular recognition capabilities. Recent developments have demonstrated that DNA nanodevices can be used to administer drugs and growth factors in a controlled manner, as well as to enhance cell adhesion, proliferation, and differentiation. Furthermore, their capacity to respond to biological stimuli enables dynamic and adaptable tissue regeneration techniques. This review highlights the latest advances in DNA nanotechnology for regenerative applications, its benefits over traditional biomaterials, and potential future pathways for clinical translation.","PeriodicalId":228,"journal":{"name":"Small","volume":"31 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202282","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}

引用次数: 0

Computational and Experimental Insights on the Role of ZnO Nanoplatelets Coated Separator in Stabilizing Lithium Metal Anodes ZnO纳米片包覆分离器在稳定锂金属阳极中的作用的计算和实验见解

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202505175

Ankush Kumar Singh, Rashmi Yadav, Madhurja Buragohain, Sooraj Kunnikuruvan, Rosy

{"title":"Computational and Experimental Insights on the Role of ZnO Nanoplatelets Coated Separator in Stabilizing Lithium Metal Anodes","authors":"Ankush Kumar Singh, Rashmi Yadav, Madhurja Buragohain, Sooraj Kunnikuruvan, Rosy","doi":"10.1002/smll.202505175","DOIUrl":"https://doi.org/10.1002/smll.202505175","url":null,"abstract":"Severe interfacial instability, dendritic growth, poor reversibility, and compromised cycle life of lithium metal anode have limited its application as a potential anode. Herein, a lithiophilic ZnO-coated separator (ZnO-PP) is used to mitigate the interfacial instability by creating an artificial solid electrolyte interface (ASEI) in situ through the spontaneous reaction of ZnO with the lithium surface. The composite separator exhibited excellent wettability, high ionic conductivity, improved Li+ transference number, and exchange current density. Ascribed to the formation of Zn-rich ASEI, a substantially lower nucleation overpotential is observed in the presence of ZnO-PP with a 55% increase in the cycle life compared to the unmodified separator. The improved electrochemical performance and prolonged cycle life are a result of smooth and uniform metal plating due to Zn-based SEI, which is confirmed by the post-cycling measurements. The density functional theory and AIMD calculations further showed that the 'by-side' lithium plating is preferred in the case of ZnO-PP, resulting in smooth plating, and suppressed electrolyte degradation. Furthermore, a Li|Cu and full cell with lithium cobalt oxide showed substantially improved reversibility, rate performance, and capacity retention with ZnO-PP.","PeriodicalId":228,"journal":{"name":"Small","volume":"34 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202335","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}

引用次数: 0

Clustering of Membrane Receptors: Insights from DNA Origami-Based Approaches 膜受体的聚类：来自DNA折纸方法的见解

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202503543

Carmen M. Domínguez, Christof M. Niemeyer

引用次数: 0

Leaf-Inspired Biomimetic Aerogels for Thermal Insulation in Extreme Environments 叶片仿生气凝胶用于极端环境下的隔热

IF 13.3 2区材料科学

Small Pub Date : 2025-06-03 DOI: 10.1002/smll.202501682

Huawei Zhuo, Qin Li, Xueli Mei, Yaoyao Chen, Yu Liu, Hongtao Xie, Yizhao Li, Fan Dong, Lizong Dai

{"title":"Leaf-Inspired Biomimetic Aerogels for Thermal Insulation in Extreme Environments","authors":"Huawei Zhuo, Qin Li, Xueli Mei, Yaoyao Chen, Yu Liu, Hongtao Xie, Yizhao Li, Fan Dong, Lizong Dai","doi":"10.1002/smll.202501682","DOIUrl":"https://doi.org/10.1002/smll.202501682","url":null,"abstract":"Aerogels hold promise for thermal protection in extreme environments and energy conservation in the building field. However, it is a great challenge to develop aerogels that possess lightweight, flame-retardant, and thermal insulation properties. Herein, inspired by the natural leaf structure, are successfully synthesized silica/chitosan/zirconia fiber composite aerogels (SCZs). The obtained SCZs feature a biomimetic design that mimics the epidermis, mesophyll, and veins of leaves. The bionic structure endows SCZs with low density, mechanical robustness, high-temperature dimensional stability, and low thermal conductivity. These properties are achieved by effectively impeding heat transfer and preventing structural collapse under localized stress. Moreover, the synergistic interactions among the components give the aerogels additional properties, including flame retardancy, radiative cooling, hydrophobicity, and so forth. This study not only presents versatile aerogels with thermal insulation and flame-retardant properties under extreme environments, but also proposes a simple, sustainable, and low-cost strategy for the preparation of biomimetic aerogels. The advancements provide a solid foundation for applications in thermal protection and energy saving.","PeriodicalId":228,"journal":{"name":"Small","volume":"13 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202334","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}

引用次数: 0

Magnetic Turtle-Like Robot with Biomimetic Movements Through Programmable Magnetic-Assisted 3D Printing. 通过可编程磁辅助3D打印实现仿生运动的磁性龟机器人。

IF 13 2区材料科学

Small Pub Date : 2025-06-02 DOI: 10.1002/smll.202412599

Hanman Zheng, Dingnan Rao, Haonan Sun, Shishi Li, Chengqian Zhang, Fanghao Zhou, Liyang Mao, Hao Zhang, Hui Xie, Tiefeng Li

{"title":"Magnetic Turtle-Like Robot with Biomimetic Movements Through Programmable Magnetic-Assisted 3D Printing.","authors":"Hanman Zheng, Dingnan Rao, Haonan Sun, Shishi Li, Chengqian Zhang, Fanghao Zhou, Liyang Mao, Hao Zhang, Hui Xie, Tiefeng Li","doi":"10.1002/smll.202412599","DOIUrl":"https://doi.org/10.1002/smll.202412599","url":null,"abstract":"Animals can respond quickly to environmental stimuli and generate complex deformations. The locomotion modes of turtles vary with changing environments, which inspires the design of bionic robots. Existing turtle-like robots exhibit high movement efficiency and multi-terrain adaptability. However, challenges remain in improving the untethered designs, miniaturization, and response speed of these robots. Herein, a millimeter-scale turtle-like robot through programmable magnetic-assisted 3D printing is proposed. Hinge structures and magnetization distribution design are introduced to mimic the turtle joints. The magnetization distribution can be regulated through 3D printing. Considering that tortoises and sea turtles have different gaits, three magnetization distributions to achieve diagonal and synchronous gaits are designed. In the multi-terrain model, the robot exhibits maneuverability to crawl across sand, grass, gravel, and mountains. Specifically, the robot can climb over a stone wall that is 5.6 times its height and avoid obstacles. The robot is also capable of delivering cargo that weighs 1.2 times its weight along target trajectories. Furthermore, the different magnetization distribution designs enable robots to move separately within the same magnetic field. This independent actuation can be used for multi-robot collaboration.","PeriodicalId":228,"journal":{"name":"Small","volume":" ","pages":"e2412599"},"PeriodicalIF":13.0,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197898","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}

引用次数: 0

Small最新文献