Small Methods最新文献_第9页

On-Tip Polymerization Method for Multimodal Characterization of Nanoparticles with Electron/Ion Imaging and Atom Probe Tomography. 用电子/离子成像和原子探针层析技术表征纳米颗粒多模态的尖端聚合方法。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-26 DOI: 10.1002/smtd.202500622

Aristide Djoulde, Anup Sharma, Alfred Bekoe Appiagyei, Levi Tegg, Yang Liu, Lian Zhang, Julie M Cairney, Yunlong Tang, Jing Fu

{"title":"On-Tip Polymerization Method for Multimodal Characterization of Nanoparticles with Electron/Ion Imaging and Atom Probe Tomography.","authors":"Aristide Djoulde, Anup Sharma, Alfred Bekoe Appiagyei, Levi Tegg, Yang Liu, Lian Zhang, Julie M Cairney, Yunlong Tang, Jing Fu","doi":"10.1002/smtd.202500622","DOIUrl":"https://doi.org/10.1002/smtd.202500622","url":null,"abstract":"This work presents a novel method for exploring the structures and chemistry of nanoparticles (NPs), addressing challenges in multimodal and correlative microscopy analysis. The proposed method utilizes a \"needle-eye\" design, featuring a through-microchannel fabricated at the needle tip. The microchannel and its surface are tuned via focused ion beam (FIB) milling and plasma treatment, enabling NPs dispersed in a resin precursor to be confined in the microchannel due to a pressure gradient upon immersion. The retained suspension is promptly polymerized in situ on the tip and shaped by FIB milling into specific geometries, including but not limited to a micropillar, lamella, and nanoneedle. Here, to demonstrate its applicability, a mixed metal oxide catalyst prepared by the needle-eye approach is characterized with energy-dispersive X-ray spectroscopy (EDX), FIB secondary ion mass spectrometry (FIB-SIMS), (scanning) transmission electron microscopy ((S)TEM), and atom probe tomography (APT). The results validate the ability of the method to achieve multimodal, combining correlative and complementary high-resolution structural and chemical imaging of individuals and clustered NPs. The proposed method confines picoliter-scale samples (6-60 pL) at a tip, eliminating lift-out and microtomy while enabling comprehensive analysis via combined microscopy techniques.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500622"},"PeriodicalIF":10.7,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140960","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

Improving Spatial Transcriptomics with Membrane-Based Boundary Definition and Enhanced Single-Cell Resolution (Small Methods 5/2025) 利用基于膜的边界定义和增强的单细胞分辨率改进空间转录组学（小方法5/2025）

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202570034

Li Song, Liqun Wang, Zitian He, Xiao Cui, Cheng Peng, Jie Xu, Zhouying Yong, Yanmei Liu, Ji-Feng Fei

引用次数: 0

Spatial Transcriptomics: Biotechnologies, Computational Tools, and Neuroscience Applications (Small Methods 5/2025) 空间转录组学：生物技术、计算工具和神经科学应用（Small Methods 5/2025）

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202570033

Qianwen Wang, Hongyuan Zhu, Lin Deng, Shuangbin Xu, Wenqin Xie, Ming Li, Rui Wang, Liang Tie, Li Zhan, Guangchuang Yu

引用次数: 0

Learning Phenotype Associated Signature in Spatial Transcriptomics with PASSAGE (Small Methods 5/2025) 通过通道学习空间转录组学中的表型相关特征（小方法5/2025）

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202570035

Chen-Kai Guo, Chen-Rui Xia, Guangdun Peng, Zhi-Jie Cao, Ge Gao

引用次数: 0

A Robust Kernel-Based Workflow for Niche Trajectory Analysis (Small Methods 5/2025) 基于鲁棒核的生态位轨迹分析工作流（Small Methods 5/2025）

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202570031

Wen Wang, 王文, Sujung Crystal Shin, Joselyn Cristina Chávez-Fuentes, Guo-Cheng Yuan

引用次数: 0

Dual-Functional Thermal Metamaterials: Decoupling Heat Flux and Temperature Fields for Advanced Thermal Management. 双功能热超材料：用于高级热管理的解耦热通量和温度场。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202500469

Yixin Liu, Xianrong Cao, Jiachang Li, Yinuo Zhou, Zifeng Tong, Zihao Zhang, Ziang Zhang, Dongsheng Jiao, Zhengdong Cheng, Liqun He

{"title":"Dual-Functional Thermal Metamaterials: Decoupling Heat Flux and Temperature Fields for Advanced Thermal Management.","authors":"Yixin Liu, Xianrong Cao, Jiachang Li, Yinuo Zhou, Zifeng Tong, Zihao Zhang, Ziang Zhang, Dongsheng Jiao, Zhengdong Cheng, Liqun He","doi":"10.1002/smtd.202500469","DOIUrl":"https://doi.org/10.1002/smtd.202500469","url":null,"abstract":"Thermal metamaterials offer a powerful platform for precise thermal management, with exceptional potential in applications such as thermal camouflage, protection, and energy utilization. However, the inherent coupling of heat flux and temperature fields, governed by Fourier's law, limits existing thermal metamaterials to single functionality. For instance, in a classic thermal cloak, both heat flux and temperature gradients are absent within the cloaked region, repelling both fields similarly. Here, a design theory is proposed for dual-functional metamaterials that decouples the functions of heat flux and temperature fields through coordinate transformations along field lines, enabling their independent control. As proof of concept, six dual-functional meta-devices are developed, where the heat flux and temperature fields independently exhibit functions such as cloak, concentrator, and rotation. Furthermore, the Finite Element Method (FEM) is extended, enabling the programmable design of dual-functional thermal metamaterials. The work not only provides a universal design framework for independent functionality in coupled physical fields, but also offers potential applications extending to fields such as electronics, acoustics, and mechanics.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500469"},"PeriodicalIF":10.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136073","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 Coordination Supramolecular Network Janus Separator Boost Sulfur Redox Dynamics in Lithium-Sulfur Batteries. 配位超分子网络Janus分离器提高锂硫电池中硫氧化还原动力学。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202500562

Zhao Chen, Yuanming Tan, Kaiji Lin, Shimei Lai, Chunshan Zhou, Shilin Huang, Yangyi Yang

{"title":"A Coordination Supramolecular Network Janus Separator Boost Sulfur Redox Dynamics in Lithium-Sulfur Batteries.","authors":"Zhao Chen, Yuanming Tan, Kaiji Lin, Shimei Lai, Chunshan Zhou, Shilin Huang, Yangyi Yang","doi":"10.1002/smtd.202500562","DOIUrl":"https://doi.org/10.1002/smtd.202500562","url":null,"abstract":"Lithium-sulfur (Li-S) batteries are limited in practical application due to the dissolution and shuttle effect of lithium polysulfides (LiPSs) intermediates. Herein, a multifunctional Janus separator is designed that integrates the zirconium-based coordination supramolecular network (Zr-CSN) with the polypropylene (PP) membrane to fabricate Zr-CSN@PP. The Zr-CSN@PP constructs a barrier on the side of the sulfur cathode to block the passage of polysulfides, and the nanoporous structure of Zr-CSN transfers lithium ions quickly. The active zirconium sites and abundant oxygen-containing groups of Zr-CSN adsorb and catalyze the polysulfides effectively, which has been proved by experiments and theoretical calculations. Zr-CSN@PP promotes the migration of Li+ (the lithium-ion transference number is 0.63) and improves the kinetics of sulfur evolution reactions, enhancing the electrochemical performance of Li-S batteries. The Li-S battery with Zr-CSN@PP separator has a capacity of 650.63 mAh g-1 after 280 cycles at 0.5 C (average decay of 0.2% per cycle), and a capacity of 422.48 mAh g-1 after 400 cycles at 2 C. This concept of porous coordination supramolecular networks Janus separator provides a broad prospect for advanced Li-S batteries.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500562"},"PeriodicalIF":10.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136126","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

Sainsc: A Computational Tool for Segmentation-Free Analysis of In Situ Capture Data (Small Methods 5/2025) Sainsc：现场捕获数据无分割分析的计算工具（Small Methods 5/2025）

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202570036

Niklas Müller-Bötticher, Sebastian Tiesmeyer, Roland Eils, Naveed Ishaque

引用次数: 0

Robust Spatial Cell-Type Deconvolution with Qualitative Reference for Spatial Transcriptomics (Small Methods 5/2025) 鲁棒空间细胞型反褶积与定性参考空间转录组学（小方法5/2025）

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202570030

Qishi Dong, Yi Yang, Ziye Luo, Haipeng Shen, Xingjie Shi, Jin Liu

引用次数: 0

Structural Phase Transition-Associated Ferroelectricity and Piezoelectric Energy Harvesting in 0D Halogenozincate Hybrid via Cation's Terminal Group Lengthening. 基于阳离子端基延长的0D卤代锌杂化物结构相变相关铁电性和压电能量收集。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-05-24 DOI: 10.1002/smtd.202500118

Cai-Hong Shi, Si-Yu Deng, Jun-Yi Li, Hao-Ran Chen, Qing-Ling Cao, Wen-He Zhong, Jie-Yu Zhu, Shuai Shao, Wei Bao, Hao Du, Li-Zhuang Chen, Chao Shi, Jia-Jia Zhao

{"title":"Structural Phase Transition-Associated Ferroelectricity and Piezoelectric Energy Harvesting in 0D Halogenozincate Hybrid via Cation's Terminal Group Lengthening.","authors":"Cai-Hong Shi, Si-Yu Deng, Jun-Yi Li, Hao-Ran Chen, Qing-Ling Cao, Wen-He Zhong, Jie-Yu Zhu, Shuai Shao, Wei Bao, Hao Du, Li-Zhuang Chen, Chao Shi, Jia-Jia Zhao","doi":"10.1002/smtd.202500118","DOIUrl":"https://doi.org/10.1002/smtd.202500118","url":null,"abstract":"Halogenometallate hybrids have garnered significant research interest for their unique structural properties, making them promising candidates for practical applications. However, due to preparation challenges and stability issues, molecular-based materials with ferroelectric properties are needed. Herein, zero-dimensional (0D) A2BX4-type halogenozincate hybrids, (C7H13NR)2ZnCl4 (R = H for 1; methyl for 2; ethyl for 3, n-propyl for 4, and n-butyl for 5), are synthesized. Despite the sole difference in the cation, only 5 displays a reversible ferroelectric phase transition (P41↔P43212). The ferroelectricity and its implementation in piezoelectric energy harvesting are demonstrated. Single-crystal structural analyses reveal the static-to-dynamic state change of the cation's terminal group drives the phase transition and associated properties. 5 achieves excellent ferroelectricity, including above room-temperature Curie temperature (330 K) and low coercive field (0.95 kV cm-1). Furthermore, flexible piezoelectric nanogenerators are fabricated using polyvinyl alcohol films incorporated with 5 at varying weight percentages (wt%). The 15 wt% composite device exhibits the highest open-circuit peak voltage of 74 V, a short-circuit peak current of 4 µA, and a power density of 0.40 mW cm-2. More importantly, it maintains stable performance over 5000 cycles. This finding provides a simple approach for designing low-dimensional hybrid ferroelectrics tailored for high-power output devices.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500118"},"PeriodicalIF":10.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136079","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