Small Methods最新文献_第8页

A Bio-Inspired Magnetic Soft Robotic Fish for Efficient Solar-Energy Driven Water Purification. 用于高效太阳能驱动水净化的生物灵感磁性软机器鱼。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-24 DOI: 10.1002/smtd.202400880

Jingjing Qin, Jiahao Li, Guozheng Yang, Kaibin Chu, Leiqian Zhang, Fangping Xu, Yujie Chen, Yaoxin Zhang, Wei Fan, Johan Hofkens, Bo Li, YinBo Zhu, HengAn Wu, Swee Ching Tan, Feili Lai, Tianxi Liu

{"title":"A Bio-Inspired Magnetic Soft Robotic Fish for Efficient Solar-Energy Driven Water Purification.","authors":"Jingjing Qin, Jiahao Li, Guozheng Yang, Kaibin Chu, Leiqian Zhang, Fangping Xu, Yujie Chen, Yaoxin Zhang, Wei Fan, Johan Hofkens, Bo Li, YinBo Zhu, HengAn Wu, Swee Ching Tan, Feili Lai, Tianxi Liu","doi":"10.1002/smtd.202400880","DOIUrl":"https://doi.org/10.1002/smtd.202400880","url":null,"abstract":"Solar-driven water evaporation is a promising solution for global water scarcity but is still facing challenges due to its substantial energy requirements. Here, a magnetic soft robotic bionic fish is developed by combining magnetic nanoparticles (Fe3O4), poly(N-isopropylacrylamide), and carboxymethyl chitosan. This bionic fish can release liquid water through hydrophilic/hydrophobic phase transition and dramatically reduce energy consumption. The introduced Fe3O4 nanoparticles endow the bionic fish with magnetic actuation capability, allowing for remote operation and recovery. Additionally, the magnetic actuation process accelerates the water absorption rate of the bionic fish as confirmed by the finite element simulations. The results demonstrate that bionic fish can effectively remove not only organic molecular dyes dissolved in water but also harmful microbes and insoluble microparticles from natural lakes. Moreover, the bionic fish maintains a good purification efficiency even after five recycling cycles. Furthermore, the bionic fish possesses other functions, such as salt purification and salt rejection. Finally, the mechanism of water purification is explained in conjunction with molecular dynamics calculations. This work provides a new approach for efficient solar-energy water purification by phase transition behavior in soft robotics.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2400880"},"PeriodicalIF":10.7,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142491775","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

Decrypting Synergy of Alloy & Metal Nanoparticles Within Nitrogen-Doped Carbon Nanosheets for Zn-Air Batteries with Ultralong Cycling Stability. 解密合金与金属纳米颗粒在掺氮碳纳米片中的协同作用，用于具有超长循环稳定性的锌-空气电池。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-23 DOI: 10.1002/smtd.202401338

Baoyu Qing, Yijiang Liu, Duanguang Yang, Mei Yang, Bei Liu, Hongbiao Chen, Huaming Li

{"title":"Decrypting Synergy of Alloy & Metal Nanoparticles Within Nitrogen-Doped Carbon Nanosheets for Zn-Air Batteries with Ultralong Cycling Stability.","authors":"Baoyu Qing, Yijiang Liu, Duanguang Yang, Mei Yang, Bei Liu, Hongbiao Chen, Huaming Li","doi":"10.1002/smtd.202401338","DOIUrl":"https://doi.org/10.1002/smtd.202401338","url":null,"abstract":"The exploration of efficient, robust, and low-cost bifunctional electrocatalysts to drive the commercial application of Zn-air batteries (ZABs) is of great significance but still remains a challenge. Herein, a 1D coordination polymer (1D-CP) derived FeNi alloy & Co nanoparticles (NPs) co-implanted N-doped carbon nanosheets (FNC/NCS) is judiciously crafted and employed as a high-performance electrocatalyst for ultralong lifetime ZABs. The key to this strategy is the leveraging of metal-coordinated melamine to direct the pyrolysis of 1D-CP, enabling the in situ formation of well-dispersed FeNi alloy and Co NPs within the carbon matrix. The resulting FNC/NCS exhibits prominent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) activity with a small overall oxygen potential difference (ΔE = 0.68 V). Density functional theory (DFT) simulation demonstrates that the synergistic effect between FeNi alloy and Co NPs can reduce energy barriers, promote electron transfer, and optimize the formation of crucial intermediates, thereby largely boost ORR/OER activity of FNC/NCS. The FNC/NCS-assembled ZABs possess high specific capacity, large power density, and ultralong cycling life in both aqueous (> 3300 h) and solid-state (150 h) electrolytes. This work provides a viable strategy for 1D-CP-derived bifunctional electrocatalysts and dissects the synergistic effect between different metal species, affording significant guidance for the development of renewable energy materials.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401338"},"PeriodicalIF":10.7,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142491777","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

Self-Assembly Hybrid Manufacture of Nanoarrays for Metasurfaces. 用于金属表面的纳米阵列的自组装混合制造。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-23 DOI: 10.1002/smtd.202401288

Bowen Yu, Yuan Ma, Yujiao Wang, Lele Song, Guoxu Yu, Xuanhe Zhang, Qingyi Wang, Zuobo Pang, Ye Zhang, Qi Wang, Jiadao Wang

{"title":"Self-Assembly Hybrid Manufacture of Nanoarrays for Metasurfaces.","authors":"Bowen Yu, Yuan Ma, Yujiao Wang, Lele Song, Guoxu Yu, Xuanhe Zhang, Qingyi Wang, Zuobo Pang, Ye Zhang, Qi Wang, Jiadao Wang","doi":"10.1002/smtd.202401288","DOIUrl":"https://doi.org/10.1002/smtd.202401288","url":null,"abstract":"The development of metasurfaces necessitates the rapid fabrication of nanoarrays on diverse substrates at large scales, the preparation of patterned nanoarrays on both planar and curved surfaces, and even the creation of nanoarrays on prefabricated structures to form multiscale metastructures. However, conventional fabrication methods fall short of these rigorous requirements. In this work, a novel self-assembly hybrid manufacturing (SAHM) method is introduced for the rapid and scalable fabrication of shape-controllable nanoarrays on various rigid and flexible substrates. This method can be easily integrated with other fabrication techniques, such as lithography and screen printing, to produce patterned nanoarrays on both planar and non-developable surfaces. Utilizing the SAHM method, nanoarrays are fabricated on prefabricated micropillars to create multiscale pillar-nanoarray metastructures. Measurements indicate that these multiscale metastructures can manipulate electromagnetic waves across a range of wavelengths. Therefore, the SAHM method demonstrates the potential of multiscale structures as a new paradigm for the design and fabrication of metasurfaces.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401288"},"PeriodicalIF":10.7,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142491782","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

Facile Synthesis of Rhodium-Based Nanocrystals in a Metastable Phase and Evaluation of Their Thermal and Catalytic Properties. 以易变相轻松合成铑基纳米晶体并评估其热学和催化特性。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-22 DOI: 10.1002/smtd.202401143

Quynh N Nguyen, Kei Kwan Li, Yong Ding, Annemieke Janssen, Zhennan Huang, Miaofang Chi, Younan Xia

{"title":"Facile Synthesis of Rhodium-Based Nanocrystals in a Metastable Phase and Evaluation of Their Thermal and Catalytic Properties.","authors":"Quynh N Nguyen, Kei Kwan Li, Yong Ding, Annemieke Janssen, Zhennan Huang, Miaofang Chi, Younan Xia","doi":"10.1002/smtd.202401143","DOIUrl":"10.1002/smtd.202401143","url":null,"abstract":"Controlling the polymorphism of metal nanocrystals is a promising strategy for enhancing properties and discovering new phenomena. However, previous studies on Rh nanocrystals have focused on their thermodynamically stable face-centered-cubic (fcc) phase. Herein, a facile synthesis of Rh-based nanocrystals featuring the metastable hexagonal close-packed (hcp) phase is reported by using Ru seeds in their native hcp phase to template the deposition of Rh atoms. The success of such phase-controlled synthesis relies on the templating effect promoted by the small lattice mismatch between Ru and Rh and the slow dropwise titration of the precursor at an elevated temperature, ensuring the layer-by-layer growth mode and thus the formation of a conformal hcp-Rh shell. Faster injection rate of Rh(III) precursor leads to the formation of a rough Rh shell in the conventional fcc phase due to accelerated reaction kinetics. Considering both thermodynamic and kinetic aspects of this system, the hcp-Rh phase is favored when the low surface energy from smooth overlayers balances the high bulk energy of the metastable phase, achieved through tight control of reaction rates and deposition patterns. These Ruhcp@Rhhcp core-shell nanocrystals demonstrate thermal stability up to 400 °C, while exhibiting higher catalytic activity toward ethanol oxidation reaction compared to Ruhcp@Rhfcc counterparts.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401143"},"PeriodicalIF":10.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454372","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

Designing Robust Single Atom Catalysts by Three-in-One Strategy: Sub-1-nm Space Confining, Bimetallic Bonding and Reaction-Induced Forming Active Sites. 通过三合一策略设计稳健的单原子催化剂：1 纳米以下空间限制、双金属结合和反应诱导形成活性位点。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-22 DOI: 10.1002/smtd.202400478

Zesheng Li

{"title":"Designing Robust Single Atom Catalysts by Three-in-One Strategy: Sub-1-nm Space Confining, Bimetallic Bonding and Reaction-Induced Forming Active Sites.","authors":"Zesheng Li","doi":"10.1002/smtd.202400478","DOIUrl":"10.1002/smtd.202400478","url":null,"abstract":"It is imperative to design robust single atom catalysts (SACs) that maintain the stability of the active component under diverse reaction conditions and prevent aggregation or deactivation. Confining the single atom active site within sub-nanometer (sub-1-nm) spaces has proven effective in enhancing the stability and activity of the catalyst, owing to the strong constraints and regulations imposed on atomic behavior at this scale. Bimetallic bond atomic sites, comprising two distinct metal compositions, often exhibit unique electronic structures and catalytic properties. Designing SACs under reaction-induced conditions, such as varying temperatures, pressures, and atmospheres, can facilitate a deeper understanding of the formation and migration behavior of active sites in real reactions, as well as the optimization mechanisms for performance enhancement. The objective of this review is to promote a robust SAC design strategy that encapsulates bimetallic bonding active sites within sub-1-nm spaces and investigates catalyst preparation and performance under reaction-induced conditions. This design strategy is anticipated to bolster the catalytic activity and stability of the catalyst while also offering fresh perspectives and optimization avenues for the catalytic processes involved in practical chemical reactions.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2400478"},"PeriodicalIF":10.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454368","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

Electrospun Co-MoC Nanoparticles Embedded in Carbon Nanofibers for Highly Efficient pH-Universal Hydrogen Evolution Reaction and Alkaline Overall Water Splitting. 嵌入碳纳米纤维的电纺 Co-MoC 纳米粒子用于高效 pH 值通用氢进化反应和碱性整体水分离。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-22 DOI: 10.1002/smtd.202401103

Shan Zhang, Fuhe Le, Wei Jia, Xue Yang, Pengfei Hu, Xueyan Wu, Wanting Shu, Yanmei Xie, Wuyang Xiao, Dianzeng Jia

{"title":"Electrospun Co-MoC Nanoparticles Embedded in Carbon Nanofibers for Highly Efficient pH-Universal Hydrogen Evolution Reaction and Alkaline Overall Water Splitting.","authors":"Shan Zhang, Fuhe Le, Wei Jia, Xue Yang, Pengfei Hu, Xueyan Wu, Wanting Shu, Yanmei Xie, Wuyang Xiao, Dianzeng Jia","doi":"10.1002/smtd.202401103","DOIUrl":"10.1002/smtd.202401103","url":null,"abstract":"The construction of highly efficient and self-supported electrocatalysts with abundant active sites for pH-universal hydrogen evolution reaction (HER) and alkaline water splitting is significantly challenging. Herein, Co and MoC nanoparticles embedded in nitrogen-doped carbon nanofibers (Co-MoC/NCNFs) which display a bamboo-like morphology are prepared by electrospinning followed by the carbonization method. The electrospun MoC possesses an ultrasmall size (≈5 nm) which can provide more active sites during electrocatalysis, while the introduction of Co greatly optimizes the electronic structure of MoC. Both endow the Co-MoC/NCNFs with superior HER performances over a wide pH range, with low overpotentials of 86, 116, and 145 mV to achieve a current density of 10 mA cm-2 in alkaline, acidic, and neutral media, respectively. Additionally, the catalyst exhibits remarkable alkaline oxygen evolution reaction (OER) activity with an overpotential of 254 mV to reach 10 mA cm-2. Density functional theory calculations confirm that electron transfer from Co to MoC regulates the adsorption free energy for hydrogen, thereby promoting HER. Moreover, an electrolyzer assembled with Co-MoC/NCNFs requires only a cell voltage of 1.59 V at 10 mA cm-2 in 1 m KOH. This work opens new pathways for the design of high-efficiency electrocatalysts for energy conversion applications.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401103"},"PeriodicalIF":10.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454370","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

Optimization of Cell Membrane Purification for the Preparation and Characterization of Cell Membrane Liposomes. 优化细胞膜纯化以制备和表征细胞膜脂质体。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-21 DOI: 10.1002/smtd.202400498

Sander de Weerd, Emma A Ruiter, Eleonora Calicchia, Giuseppe Portale, Jan Jacob Schuringa, Wouter H Roos, Anna Salvati

{"title":"Optimization of Cell Membrane Purification for the Preparation and Characterization of Cell Membrane Liposomes.","authors":"Sander de Weerd, Emma A Ruiter, Eleonora Calicchia, Giuseppe Portale, Jan Jacob Schuringa, Wouter H Roos, Anna Salvati","doi":"10.1002/smtd.202400498","DOIUrl":"https://doi.org/10.1002/smtd.202400498","url":null,"abstract":"Cell membrane nanoparticles have attracted increasing interest in nanomedicine because they allow to exploit the complexity of cell membrane interactions for drug delivery. Several methods are used to obtain plasma membrane to generate cell membrane nanoparticles. Here, an optimized method combining nitrogen cavitation in isotonic buffer and sucrose gradient fractionation is presented. The method allows to obtain cell membrane fractions of high purity from both suspension and adherent cells. Comparison with other common methods for membrane extraction, where mechanical lysis using cell homogenizers is performed in isotonic or hypotonic buffers, shows that the optimized procedure yields high purity membrane in a robust and reproducible way. Procedures to mix the purified membrane with synthetic lipids to obtain cell membrane liposomes (CMLs) are presented and indications on how to optimize these steps are provided. CMLs made using crude membrane isolates or the purified membrane fractions show different uptake by cells. The CMLs made with the optimized procedure and liposomes of the same composition but without cell membrane components are thoroughly characterized and compared for their size, zeta potential, bilayer and mechanical properties to confirm membrane protein inclusion in the CMLs. Cell uptake studies confirm that the inclusion of membrane components modifies liposome interactions with cells.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2400498"},"PeriodicalIF":10.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454393","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

In Situ Oxygen Generation via a Platinum-Based Wireless Nanopore Electrode for Single-Cell Manipulation. 通过铂基无线纳米孔电极原位制氧，实现单细胞操作。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-21 DOI: 10.1002/smtd.202401448

Ke-Le Chen, Ru-Jia Yu, Ming-Kang Li, Hao-Wei Wang, Bao-Kang Xie, Shao-Chuang Liu, Yi-Lun Ying, Yi-Tao Long

引用次数: 0

Thoughts on the Rational Design of MOF-Guest Interactions for Future Intelligent Materials. 关于为未来智能材料合理设计 MOF-客体相互作用的思考。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-21 DOI: 10.1002/smtd.202400584

Paul Asselin, Pierre D Harvey

引用次数: 0

Near-Infrared II Fluorescence Imaging Highlights Tumor Angiogenesis in Hepatocellular Carcinoma with a VEGFR-Targeted Probe. 近红外 II 荧光成像利用 VEGFR 靶向探针突出显示肝细胞癌中的肿瘤血管生成。

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-10-21 DOI: 10.1002/smtd.202400904

Jiali Chen, Shiying Li, Qi Zhou, Xingyang Zhao, Zhijin Fan, Hsuan Lo, Liming Nie

{"title":"Near-Infrared II Fluorescence Imaging Highlights Tumor Angiogenesis in Hepatocellular Carcinoma with a VEGFR-Targeted Probe.","authors":"Jiali Chen, Shiying Li, Qi Zhou, Xingyang Zhao, Zhijin Fan, Hsuan Lo, Liming Nie","doi":"10.1002/smtd.202400904","DOIUrl":"https://doi.org/10.1002/smtd.202400904","url":null,"abstract":"Hepatocellular carcinoma (HCC) is typically characterized by rich vascularity, with angiogenesis playing a crucial role in its growth and invasion. Molecular imaging of specific receptors in blood vessels is crucial in HCC diagnosis. In particular, in vivo imaging utilizing the second near-infrared (NIR-II) window offers improved tissue penetration, reduced light scattering, and lower autofluorescence. Despite the great potential of the NIR-II window, developing safe and effective probes to provide better imaging performance for HCC is urgently needed. In this study, NIR-II imaging integrated with a vascular endothelial growth factor receptor (VEGFR)-targeted probe generated by combining a VEGFR-targeted peptide with indocyanine green (ICG) is used to characterize HCC-related angiogenesis at a resolution of 56.0 µm. For the first time, liver metabolic curves and parameters of liver function reserve (LFR) are obtained by fitting NIR-II fluorescence signals with high spatiotemporal resolution, showing significant differences between HCC mice and controls. Moreover, unlike ICG, the targeting probe has a targeted effect on blood vessels in vivo. The tumor-to-normal (T/N) ratio in NIR-II imaging reaches up to 3.30 after post-injection of the targeting probe. The results indicate that the VEGFR-targeted probe is a powerful tool for NIR-II fluorescence imaging to enhance early diagnosis of HCC.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2400904"},"PeriodicalIF":10.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454392","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