IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202505204

Adam Erickson, Qihan Zhang, Hamed Vakili, Edward Schwartz, Suvechhya Lamichhane, Chaozhong Li, Boyu Li, Dongsheng Song, Guozhi Chai, Sy‐Hwang Liou, Alexey A. Kovalev, Jingsheng Chen, Abdelghani Laraoui

{"title":"Effect of Magnetic Anisotropy and Gradient‐Induced Dzyaloshinskii‐Moriya Interaction on the Formation of Magnetic Skyrmions","authors":"Adam Erickson, Qihan Zhang, Hamed Vakili, Edward Schwartz, Suvechhya Lamichhane, Chaozhong Li, Boyu Li, Dongsheng Song, Guozhi Chai, Sy‐Hwang Liou, Alexey A. Kovalev, Jingsheng Chen, Abdelghani Laraoui","doi":"10.1002/smll.202505204","DOIUrl":"https://doi.org/10.1002/smll.202505204","url":null,"abstract":"Topological spin textures (e.g., skyrmions) can be stabilized by interfacial Dzyaloshinskii‐Moriya interaction (DMI) in the magnetic multilayer, which has been intensively studied. Recently, Bloch‐type magnetic skyrmions stabilized by composition gradient‐induced DMI (g‐DMI) have been observed in 10‐nm thick CoPt single layer. However, magnetic anisotropy in gradient‐composition engineered CoPt (g‐CoPt) films is highly sensitive to both the relative Co/Pt composition and the film thickness, leading to a complex interplay with g‐DMI. The stability of skyrmions under the combined influence of magnetic anisotropy and g‐DMI is crucial yet remains poorly understood. Here, we condcut a systematic study on the characteristics of magnetic skyrmions as a function of gradient polarity and effective gradient (defined as gradient/thickness) in g‐CoPt single layers (thickness of 10–30 nm) using magnetic force microscopy (MFM), bulk magnetometry, and topological Hall effect measurements. Brillouin light scattering spectroscopy confirms that both the sign and magnitude of g‐DMI depend on the polarity and amplitude of the composition gradient in g‐CoPt films. MFM reveals that skyrmion size and density vary with g‐CoPt film thickness, gradient polarity, and applied magnetic field. An increased skyrmion density is observed in samples exhibiting higher magnetic anisotropy, in agreement with micromagnetic simulations and energy barrier calculations.","PeriodicalId":228,"journal":{"name":"Small","volume":"36 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710653","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

Tunable Interlayer‐Spacing Graphene Oxide Membrane: Efficient Osmotic Energy Conversion Toward Metal Recovery 可调层间距氧化石墨烯膜：高效渗透能量转换金属回收

IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202504362

Wei‐Qi Zhang, Yonghuan Chen, Xiuying Li, Defang Ding, Yu Huang, Fan Xia, Fengyu Li

引用次数: 0

Molecule‐Interhalogen Soft Colloidal Electrode for High‐Voltage Stable Aqueous Zinc‐Ion Batteries 用于高压稳定锌离子水电池的分子-卤素间软胶体电极

IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202505743

Kaiqiang Zhang, Chao Wu, Qinhan Yang, Jilei Ye, Yuping Wu

{"title":"Molecule‐Interhalogen Soft Colloidal Electrode for High‐Voltage Stable Aqueous Zinc‐Ion Batteries","authors":"Kaiqiang Zhang, Chao Wu, Qinhan Yang, Jilei Ye, Yuping Wu","doi":"10.1002/smll.202505743","DOIUrl":"https://doi.org/10.1002/smll.202505743","url":null,"abstract":"Halogen anion‐based interhalogen design offers an effective approach to enable multiple‐electron halogen electrodes in aqueous zinc batteries. However, the high operating voltages of halogen redox couples often lead to parasitic side reactions outside the stable voltage window of aqueous electrolytes, resulting in reduced Coulombic efficiencies and hindering practical application. Herein, a molecule‐based interhalogen is introduced (M‐interhalogen), (I2/Brx)x−, and a detailed investigation of its unique interactions as a cathode material for aqueous zinc batteries. By incorporating M‐interhalogen within a soft colloidal host, a significant shift of the redox reactions to a voltage window of 1.2 to 1.6 V versus Zn/Zn2+, greatly suppressing the parasitic side reactions is achieved. Consequently, the battery exhibits Coulombic efficiencies approaching 100% and demonstrates stable cycling at a small current density of 0.05 mA cm−2. This study provides critical insights into practical deployment of aqueous zinc‐halogen batteries.","PeriodicalId":228,"journal":{"name":"Small","volume":"1 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710659","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

Leveraging Strong Interfacial Interactions between MoS2 Nanoflowers and 3D Porous Carbon Networks for Enhancing Biomolecule Catalysis and Discrimination 利用二硫化钼纳米花和三维多孔碳网络之间的强界面相互作用来增强生物分子催化和识别

IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202504866

Aili Zhao, Min Cui, Jingui Wang, Shuai Wang, Yanli Zhao

{"title":"Leveraging Strong Interfacial Interactions between MoS2 Nanoflowers and 3D Porous Carbon Networks for Enhancing Biomolecule Catalysis and Discrimination","authors":"Aili Zhao, Min Cui, Jingui Wang, Shuai Wang, Yanli Zhao","doi":"10.1002/smll.202504866","DOIUrl":"https://doi.org/10.1002/smll.202504866","url":null,"abstract":"Electroactive biomolecules, dopamine (DA) and uric acid (UA), as important biomarkers, often coexist in biological matrices. Due to their similar oxidation potentials, designing electrooxidation catalysts to efficiently detect and distinguish them and establishing structure‐activity relationships remain a great bottleneck in the field of electrochemical sensing. Herein, an electrochemical sensor is designed by leveraging molybdenum disulfide nanoflowers embedded within 3D nitrogen‐doped porous carbon networks (MoS2@N‐3DPC) for sensitive detection and discrimination of DA and UA. In constructing a heterogeneous interface between MoS2 nanoflowers and N‐3DPC, the incorporation of N‐3DPC not only addresses the stacking issue but also markedly enhances the electrical conductivity. Moreover, the synthesis of petal‐like MoS2 shortens the electron and ion transfer pathways. The strong interfacial interaction between N‐3DPC and MoS2 effectively enhances the electrocatalytic performance of MoS2@N‐3DPC, as demonstrated by electrochemical analysis. The sensor demonstrates wide linear detection ranges (from 0.01 to 989.95 µm for DA and from 0.6 to 1063.4 µm for UA), low limits of detection for DA (3.0 nm) and UA (200.0 nm), as well as high selectivity and stability. Furthermore, such a sensor can be applied to the detection of DA and UA in real biological serum samples, with the results highly correlated with the spectrophotometric method.","PeriodicalId":228,"journal":{"name":"Small","volume":"15 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710662","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

Polymer‐Coordinated Heterogeneous Zeolitic Imidazolate Framework‐8 with Exceptional Propylene/Propane Molecular Sieving Effect 聚合物-配位非均相咪唑酸分子筛- 8具有特殊的丙烯/丙烷分子筛分效果

IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202505746

Sunghwan Park, Ho Jin Jung, Se Hun Kim, Hoang Vu Ly, Seung‐Soo Kim, Dong A. Kang, Young Je Kwon, Seunghyeon Joo, Kie Yong Cho, Hae‐Kwon Jeong

{"title":"Polymer‐Coordinated Heterogeneous Zeolitic Imidazolate Framework‐8 with Exceptional Propylene/Propane Molecular Sieving Effect","authors":"Sunghwan Park, Ho Jin Jung, Se Hun Kim, Hoang Vu Ly, Seung‐Soo Kim, Dong A. Kang, Young Je Kwon, Seunghyeon Joo, Kie Yong Cho, Hae‐Kwon Jeong","doi":"10.1002/smll.202505746","DOIUrl":"https://doi.org/10.1002/smll.202505746","url":null,"abstract":"Zeolitic imidazolate framework‐8 (ZIF‐8) is a promising material for C3H6/C3H8 separation; however, its inherent linker flexibility compromises molecular sieving effect. To address this limitation, a novel ZIF‐8, namely heterogeneous ZIF‐8 (hZIF‐8), is developed, consisting of nanocrystalline ZIF‐8 phases with a minor amorphous polymer component introduced via in situ coordination. hZIF‐8 is synthesized through a Lewis‐acid‐catalyzed cationic ring‐opening polymerization of tetrahydrofuran (THF), generating polytetramethylene ether glycol (PTMEG) chains that competitively coordinate with zinc ions during ZIF‐8 crystallization. This coordination‐mediated heterogeneous structure exhibits unique characteristics distinct from conventional ZIF‐8 and other polymer hybrid MOFs such as PolyMOFs. The polymer phase effectively restricts the linker flexibility of the nanocrystalline phase at the molecular level, leading to significantly enhanced molecular sieving properties. As a result, hZIF‐8‐containing mixed‐matrix membranes (MMMs) exhibit a significant enhancement in C3H6/C3H8 separation performance, with the separation factor increasing from 13.3 to 75.5 (by 468%) and the C3H6 permeability from 7.4 to 17.4 Barrer (by 135%) at 30 wt.% loading. Furthermore, the intrinsic selectivity of hZIF‐8 is predicted to reach ≈3700, representing an order‐of‐magnitude improvement over that of pristine ZIF‐8 (≈180).","PeriodicalId":228,"journal":{"name":"Small","volume":"116 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710663","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

Efficient Ta3N5 Photoanodes via Interface Engineering of Bixbyite‐Type Ta2N3 Precursors Bixbyite型Ta2N3前驱体的界面工程制备高效Ta3N5光阳极

IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202505487

Chia‐Wei Chang, Bo‐Ying Lai, Chang‐Ming Jiang

{"title":"Efficient Ta3N5 Photoanodes via Interface Engineering of Bixbyite‐Type Ta2N3 Precursors","authors":"Chia‐Wei Chang, Bo‐Ying Lai, Chang‐Ming Jiang","doi":"10.1002/smll.202505487","DOIUrl":"https://doi.org/10.1002/smll.202505487","url":null,"abstract":"Tantalum nitride (Ta3N5) shows promising prospects for photoelectrochemical (PEC) water splitting due to its suitable band gap and band edge positions. However, high‐performing Ta3N5 photoanodes typically require Ta foil substrates and film thicknesses of several hundred nanometers, leading to increased tantalum usage and fabrication costs. This study introduces bixbyite‐type Ta2N3 as a superior precursor for synthesizing thin (≈100 nm) Ta3N5 films on silicon substrates, substantially reducing tantalum consumption while maintaining excellent PEC performance. The metastable Ta2N3 phase undergoes disproportionation into Ta3N5 and conductive Ta‐subnitrides during ammonolysis, enabling efficient charge separation without relying on Ta foils. Optimization of ammonolysis conditions reveals a critical balance between Ta3N5 crystallinity, subnitride content, and surface Ta3+ defect concentrations. Furthermore, degenerately doped silicon substrates enhance hole extraction by suppressing charge accumulation and leakage at the Ta3N5/Si junction, as revealed by photoelectrochemical impedance spectroscopy. This synthesis strategy yields an anodic photocurrent density of 3.86 mA cm−2 at 1.23 VRHE for a 100 nm Ta3N5 film on n+‐Si(111), outperforming a 500 nm film derived from TaOx precursor and achieving a 0.15 V cathodic shift in onset potential. These findings establish a scalable, low‐Ta usage platform for advancing Ta3N5‐based PEC systems in solar fuel technologies.","PeriodicalId":228,"journal":{"name":"Small","volume":"707 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710664","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

The Challenges and Opportunities of Protein Coronas for Nanoscale Biomolecular Sensing 蛋白质冠状体用于纳米生物分子传感的挑战与机遇

IF 13.3 2区材料科学

Small Pub Date : 2025-07-26 DOI: 10.1002/smll.202503820

Samuel Cheeseman, Parisa Moazzam, Negar Mahmoudi, Morteza Mahmoudi, Frank Caruso, Antonio Tricoli, David R. Nisbet

{"title":"The Challenges and Opportunities of Protein Coronas for Nanoscale Biomolecular Sensing","authors":"Samuel Cheeseman, Parisa Moazzam, Negar Mahmoudi, Morteza Mahmoudi, Frank Caruso, Antonio Tricoli, David R. Nisbet","doi":"10.1002/smll.202503820","DOIUrl":"https://doi.org/10.1002/smll.202503820","url":null,"abstract":"The unique benefits of sub‐picomolar and single‐molecule detection for the diagnosis and prognosis of diseases and therapeutic efficacy monitoring have been driving the development of nanoscale biomolecular sensors. Nanoscale sensors can be attached to the surface or dispersed in solution, enabling the rapid detection of analytes with high sensitivity and specificity by overcoming concentration‐driven diffusion limits. In biological fluids, however, nanoscale objects are surrounded by biomolecules, mostly proteins, that form an evolving encapsulating surface layer, commonly known as the protein corona. The protein corona can modify the biosensor surface, which can adversely impact biosensing specificity, sensitivity, and accuracy. Conversely, the protein corona can be exploited to design biosensors for disease diagnostics, the discovery of new biomarkers, and environmental contaminants. In this review, the factors influencing protein corona formation on nanoscale biosensors are examined. Characterization methods and the effects of protein corona formation on the performance of nanoscale biosensors are also discussed. Promising strategies to prevent, circumvent, and exploit corona formation are presented and this review concludes by outlining future perspectives of nanoscale biomolecular sensors for practical application in biological fluids.","PeriodicalId":228,"journal":{"name":"Small","volume":"57 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710666","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

Hydrogen Production from Catalytic Steam Reforming of Bio-Oil: Recent Advances in Coke Resistance. 生物油催化蒸汽重整制氢：抗焦性研究进展。

IF 13.3 2区材料科学

Small Pub Date : 2025-07-25 DOI: 10.1002/smll.202505296

Xin Li,Ping Zou,Xiang Zhu,Sheng Dai,Xia Jiang

引用次数: 0

CdIn2S4 Micro-Pyramids for Reductive Photocatalytic Degradation of Perfluorooctanesulfonic Acid. 全氟辛烷磺酸还原性光催化降解CdIn2S4微金字塔。

IF 13.3 2区材料科学

Small Pub Date : 2025-07-25 DOI: 10.1002/smll.202504601

Mahmoud Adel Hamza,Alexander James Keltie,Rachael Kate Matthews,Mabel Lily Day,Cameron James Shearer

{"title":"CdIn2S4 Micro-Pyramids for Reductive Photocatalytic Degradation of Perfluorooctanesulfonic Acid.","authors":"Mahmoud Adel Hamza,Alexander James Keltie,Rachael Kate Matthews,Mabel Lily Day,Cameron James Shearer","doi":"10.1002/smll.202504601","DOIUrl":"https://doi.org/10.1002/smll.202504601","url":null,"abstract":"Per- and poly-fluoroalkyl substances (PFAS) constitute a class of persistent organic pollutants that severely affect human health and the environment owing to their resistance to degradation by traditional water treatment methods. Semiconductor-assisted photocatalysis has the potential to be a green method to achieve complete mineralization of PFAS. Cadmium indium sulfide (CdIn2S4) is an exciting photocatalytic material because of its high visible light harvesting capacity and high reduction potential. However, CdIn2S4 has not been investigated for PFAS degradation. Herein, CdIn2S4 micro-pyramids are fabricated via solvothermal synthesis, and their photocatalytic activity toward the photodegradation of perfluorooctanesulfonic acid (PFOS) is investigated. The reaction conditions, such as the light source and the light power are optimized. The findings show the capability of CdIn2S4 to achieve almost complete degradation and defluorination of PFOS (removal% = 99 ± 7% and defluorination% = 97 ± 22%) under optimized conditions. From radical quenching experiments, it is found that the mechanism of degradation is via photoelectron reduction. CdIn2S4 shows an outstanding performance toward the degradation of the PFAS sample derived from a contaminated facility in South Australia. This work opens the door for investigating other CdIn2S4-based photocatalysts and other metal sulfide-based photocatalysts for the degradation of PFAS.","PeriodicalId":228,"journal":{"name":"Small","volume":"115 1","pages":"e04601"},"PeriodicalIF":13.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144701140","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

Potential Applications of Multifunctional Tetrahedral Framework Nucleic Acids in Bone Tissue Engineering. 多功能四面体框架核酸在骨组织工程中的潜在应用。

IF 13.3 2区材料科学

Small Pub Date : 2025-07-25 DOI: 10.1002/smll.202411930

Wen Tang,Weitong Lu,Sirong Shi,Yunfeng Lin

{"title":"Potential Applications of Multifunctional Tetrahedral Framework Nucleic Acids in Bone Tissue Engineering.","authors":"Wen Tang,Weitong Lu,Sirong Shi,Yunfeng Lin","doi":"10.1002/smll.202411930","DOIUrl":"https://doi.org/10.1002/smll.202411930","url":null,"abstract":"Though bone defects are common, treating critical-sized bone defects remains a significant clinical challenge. A potential strategy for bone repair that avoids the need for autogenous bone grafts is bone tissue engineering (BTE). Recently, BTE strategies incorporating vascularization, neurorestoration, and immunomodulation of bone substitutes are regarded as a comprehensive and promising method for bone repair. Despite advancements, existing approaches struggle to achieve overall bone regeneration. Emerging DNA nanotechnology, specifically tetrahedral framework nucleic acids (tFNAs), presents a transformative approach due to their rapid self-assembly, structural stability, efficient cellular uptake, multiple biological activities, and excellent biocompatibility. tFNAs allow for flexible modifications with various bioactive molecules, including oligonucleotides, peptides, and small molecular drugs, thus strengthening their targeting and therapeutic abilities. tFNAs can enhance osteogenesis by promoting mesenchymal stem cell viability and differentiation, thereby stimulating bone formation. Furthermore, tFNAs integrated with scaffolds contribute to the development of advanced biomaterials with superior osteoinductive properties. tFNAs also influence angiogenesis, neurorestoration, and immunomodulation, all of which are crucial for bone repair. This review not only examines the potential applications of multifunctional tFNAs in BTE but also provides critical insights into the advantages, challenges, and prospects of tFNAs in BTE.","PeriodicalId":228,"journal":{"name":"Small","volume":"18 1","pages":"e2411930"},"PeriodicalIF":13.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144701057","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

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