IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202410462

Xiang Li, Yidan Hu, Youyi Ding, Haijun Zhao, Shu Zhu, Junhui Wang, Guangpeng Zhu, Wei Du, Tao Wang

{"title":"Mechanical Stretching Induced Highly Tunable and Reversible Mid-infrared Plasmonic Resonances in a Conductive Polymer Thin Film","authors":"Xiang Li, Yidan Hu, Youyi Ding, Haijun Zhao, Shu Zhu, Junhui Wang, Guangpeng Zhu, Wei Du, Tao Wang","doi":"10.1002/smll.202410462","DOIUrl":"https://doi.org/10.1002/smll.202410462","url":null,"abstract":"Mid-infrared plasmonic resonance enables nanoscale light confinement at mid-infrared frequencies, leading to various applications ranging from compact infrared lasers to biological and chemical sensing. However, upon fabricated, plasmonic resonators normally have a fixed resonance frequency, which limits their application frequency range and hinders the dynamic tuning potential. Here, with the flexible PEDOT:PSS ((poly(ethylenedioxythiophene):poly(styrenesulfonate)) conducting polymer as the plasmonic medium, highly tunable and reversible mid-infrared plasmonic resonances are demonstrated via mechanical stretching. Such plasmonic resonances, based on the stretching-induced grating-type morphology of the PEDOT:PSS thin-film, can be readily tuned across a large mid-infrared frequency range from ≈7500 to 1500 cm−1. In addition, the stretching-induced plasmonic resonances are well reversible in a recovery process and reproducible under 1000 stretching-recovery cycles. Furthermore, the stretching-induced plasmonic resonances also show the mid-infrared chemical sensing ability by enabling surface-enhanced infrared absorption of molecular moieties. The work paves a new way for the active tuning of mid-infrared plasmonic resonances, and will promote the development of flexible mid-infrared plasmonic devices.","PeriodicalId":228,"journal":{"name":"Small","volume":"216 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737056","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

Multi-Tier Cellular-Engineered Capillary Boiling

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202411784

Yao Wu, Zeyang Wang, Xiaolong Yang

引用次数: 0

Promoting Intermediate Stabilization and Coupling for Dimethyl Carbonate Electrosynthesis

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202501780

Yuying Mi, Yuanyuan Xue, Yaqin Yan, Shuya Hao, Cejun Hu, Lijuan Zhang, Gengfeng Zheng

{"title":"Promoting Intermediate Stabilization and Coupling for Dimethyl Carbonate Electrosynthesis","authors":"Yuying Mi, Yuanyuan Xue, Yaqin Yan, Shuya Hao, Cejun Hu, Lijuan Zhang, Gengfeng Zheng","doi":"10.1002/smll.202501780","DOIUrl":"https://doi.org/10.1002/smll.202501780","url":null,"abstract":"The electrocatalytic coupling of methanol and CO to produce dimethyl carbonate (DMC) is an attractive strategy for converting C1 resources into value-added products, while the controlled adsorption and coupling of two key intermediates, *CO and *OCH3, have not been demonstrated yet. Herein, a heterointerface engineering strategy is developed to modulate intermediate adsorption and facilitate the C─O bond formation. By constructing a Pd and PdO heterostructure catalyst with abundant interfaces (designated as Pd/PdO-r), the Pd0 sites serve to stabilize *CO and the electrophilic Pd2+ sites can promote the *OCH3 adsorption, thereby optimizing their spatial proximity and reactivity. In addition, the heterointerfaces allow to lower the coupling reaction barrier, enabling an efficient electrocatalytic pathway for the DMC synthesis. Consequently, the Pd/PdO-r heterostructure catalyst exhibited a high Faradaic efficiency of 86% with a DMC yield rate of 252 µmol h−1 mgcat−1 in flow cells. The work suggests an effective approach to design heterointerfaces for enhanced intermediate adsorption and coupling, thus promoting the formation of valuable multicarbon products from C1 resources.","PeriodicalId":228,"journal":{"name":"Small","volume":"114 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737059","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

Hydroxylation of Cu Sites Enhances Selectivity of Electrosynthesis of Ethanol via Tandem Reduction of CO2

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202410135

Teng Zhang, Xueya Dai, Yihong Yu, Xin Cui, Yunlong Li, Gaowu Qin, Wei Qi, Song Li

引用次数: 0

Photocurable Dual-Network Hydrogels Based on Natural Polymers for Sutureless Repair of Large Corneal Defects

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202500150

Qing Li, Ruyin Zhang, Chengpei Ouyang, Shuo Wang, Shanshan Li, Xinchao Yin, Zimeng Deng, Baoqin Han, Jinhua Chi

{"title":"Photocurable Dual-Network Hydrogels Based on Natural Polymers for Sutureless Repair of Large Corneal Defects","authors":"Qing Li, Ruyin Zhang, Chengpei Ouyang, Shuo Wang, Shanshan Li, Xinchao Yin, Zimeng Deng, Baoqin Han, Jinhua Chi","doi":"10.1002/smll.202500150","DOIUrl":"https://doi.org/10.1002/smll.202500150","url":null,"abstract":"Corneal transplantation remains the prevailing treatment for corneal defects, which is always restricted by donor shortages and numerous postoperative complications accompanying suturing. Photocurable hydrogels have emerged as alternative therapeutic strategies for the repair of corneal defects, but most hydrogels focus on repairing focal corneal defects and still suffer from low transparency and poor mechanical properties. Herein, photocurable hydrogel GelMA/OCS composed of gelatin methacryloyl (GelMA) and oxidized chondroitin sulfate (OCS) is developed for sutureless repair of large corneal defects (6 mm). This injectable hybridized hydrogel demonstrates excellent transparency, low swelling rate, enhanced mechanical properties, and superior adhesion properties. In vitro experiments reveal that GelMA/OCS hydrogel can support the proliferation and migration, and adhesion growth of human corneal epithelial cells (HCECs), demonstrating satisfactory cytocompatibility and cell affinity. In addition, GelMA/OCS hydrogel is capable of accurately filling the large corneal defects in rabbits and forming hydrogel grafts with smooth surfaces. Postoperative slit lamp, histological evaluation, and transcriptomic analysis reveal that GelMA/OCS hydrogel can significantly facilitate corneal re-epithelialization and the integration and reconstruction of stromal structures, as well as reduce inflammation responses and scar formation. Therefore, GelMA/OCS hydrogel may provide a promising alternative for the sutureless treatment of large corneal defects.","PeriodicalId":228,"journal":{"name":"Small","volume":"95 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737058","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

Polyolefin Recycling with Binary Cobalt–Nickel Nanosheets

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202502431

Baogang Su, Mengjun Wang, Xiaofei Lai, Yong Xu

引用次数: 0

Revisiting the Roles of Foreign Magnesium Dopants in Governing the Properties of Li-Rich Mn-Based Oxide Cathodes for Li-ion Batteries

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202411490

Yujia Zhang, Fuliang Guo, Ao Li, Zhixiong Li, Pengcheng Yuan, Jing Xu, Zhiwei Hu, Liang Yin, Huiling Zhao, Ying Bai, Hong Li

{"title":"Revisiting the Roles of Foreign Magnesium Dopants in Governing the Properties of Li-Rich Mn-Based Oxide Cathodes for Li-ion Batteries","authors":"Yujia Zhang, Fuliang Guo, Ao Li, Zhixiong Li, Pengcheng Yuan, Jing Xu, Zhiwei Hu, Liang Yin, Huiling Zhao, Ying Bai, Hong Li","doi":"10.1002/smll.202411490","DOIUrl":"https://doi.org/10.1002/smll.202411490","url":null,"abstract":"Heteroatoms doping would validly stabilize the structure of Li-rich material and elevate electrochemical performance. For the synthesized Li-rich material, the conventional ex situ doping strategy can only incorporate heteroatoms in the outer particles, diminishing benefits for the internal structure of secondary particles. Recently, in situ doping has been employed to influence topological lithiation and achieve well-distribution in the bulk structure. However, the mechanisms of in/ex situ doping on elevating electrochemical performance for Li-rich material are ambiguous. Herein, by introducing magnesium (Mg2+) ions on the precursor and synthesized Li-rich material, the in situ Mg doping (LRO-Mg1) and the ex situ Mg doping (LRO-Mg2) samples are successfully designed. Characterizations shows that Mg ion tend to incorporate into the Li-rich bulk structure for in situ doping, while they enrich in the surface for ex situ doping. Electrochemical measurement manifest that the in situ Mg doping Li-rich cathode exhibits more elevated high-rate performance, while the ex situ doping Li-rich cathode exhibits more elevated specific capacity, illuminating that enhances bulk structure of Li-rich cathode through in situ doping strategy is more effective than the surface modification (ex situ doping). Ex situ doping may be more effective for surface treatment, contributing to specific capacity improvement.","PeriodicalId":228,"journal":{"name":"Small","volume":"58 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737118","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

Enhancing Interfacial Stability and Electrochemical Performance for High-Temperature Operation of Ni-Rich Layered Oxide Cathode-Li Batteries via Tailoring Electrolyte Chemistry

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202410235

Qing Zhang, Lingfeng Zou, Youqi Chu, Yongbiao Mu, Huanxiu Zou, Xianbin Wei, Xiaoqian Xu, Lin Zeng

{"title":"Enhancing Interfacial Stability and Electrochemical Performance for High-Temperature Operation of Ni-Rich Layered Oxide Cathode-Li Batteries via Tailoring Electrolyte Chemistry","authors":"Qing Zhang, Lingfeng Zou, Youqi Chu, Yongbiao Mu, Huanxiu Zou, Xianbin Wei, Xiaoqian Xu, Lin Zeng","doi":"10.1002/smll.202410235","DOIUrl":"https://doi.org/10.1002/smll.202410235","url":null,"abstract":"Achieving both interfacial stability and enhanced electrochemical performance in Ni-rich layered oxide cathode (NCM811)-Li batteries remains a critical challenge, especially at elevated temperatures. Current approaches, including artificial coatings and fluorinated solvents, have improved stability but frequently fail to sustain long-term performance due to increased interfacial resistance or degradation over extended cycling. Here, an advanced electrolyte optimization strategy through the incorporation of triethyl phosphate is proposed to simultaneously enhance the stability of the electrode-electrolyte interface by promoting the formation of robust solid electrolyte interphase and cathode electrolyte interphase layers, thereby preventing side reactions and particle cracking. This results in significantly improved cycle life and thermal stability. The NCM811||Li cells featuring the optimized electrolyte exhibit an impressive initial capacity of 196.8 mAh g−1 and a remarkable Coulombic efficiency of 96.2%, retaining 87.3% after 250 cycles at 1 C and an operating temperature of 60 °C. Even at 10 C, it demonstrates a capacity of 138 mAh g−1 with a retention of 87.9% after 100 cycles, showcasing excellent high-temperature performance and Coulombic efficiency. These results present a promising strategy for enhancing the durability and efficiency of NCM811-Li batteries under demanding conditions.","PeriodicalId":228,"journal":{"name":"Small","volume":"169 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737126","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

Shape and Size Effects of Gold Nanoparticles for Tumor Photoacoustic Imaging and Photothermal Therapy Within the NIR-I and NIR-II Biowindows 用于近红外 I 和近红外 II 生物窗口内肿瘤光声成像和光热疗法的金纳米粒子的形状和尺寸效应

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202412296

Xiaodong Zeng, Lin Tang, Weijing Zhang, Xuechuan Hong, Yuling Xiao

{"title":"Shape and Size Effects of Gold Nanoparticles for Tumor Photoacoustic Imaging and Photothermal Therapy Within the NIR-I and NIR-II Biowindows","authors":"Xiaodong Zeng, Lin Tang, Weijing Zhang, Xuechuan Hong, Yuling Xiao","doi":"10.1002/smll.202412296","DOIUrl":"https://doi.org/10.1002/smll.202412296","url":null,"abstract":"Gold nanoparticles (AuNPs) have emerged as promising tools in cancer theranostics, particularly in applications involving photoacoustic imaging (PAI) and photothermal therapy (PTT). The optical and thermal properties of AuNPs can be precisely tuned by adjusting their shape and size, which, in turn, influences their performance within the first (NIR-I) and second near-infrared (NIR-II) bio-windows. This study explores how variations in the morphology of AuNPs, such as nanorods and nanodumbbells, affect their longitudinal surface plasmon resonance peaks, penetration depth, heating efficiency, and photoacoustic performance. Special attention is given to the superior capabilities of PEGylated NIR-II AuNPs in deep tissue imaging, photothermal conversion efficiency, effective tumor ablation, and biocompatibility compared to their NIR-I counterparts. NIR-II AuNPs also demonstrate significantly enhanced photoacoustic intensity, making them highly promising for clinical PAI. These findings underscore the potential of NIR-II-optimized AuNPs as potent agents for cancer theranostics, providing valuable insights into how the shape and size of AuNPs influence the aspect ratio, thereby optimizing imaging precision and treatment efficacy across the NIR-I to NIR-II spectrum.","PeriodicalId":228,"journal":{"name":"Small","volume":"36 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737125","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

Water-Dispersible MXene Governs Glycolysis for Cancer Synergistic Therapy

IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202411768

Jinfeng Liu, Yuwen Gong, Dandan Wang, Shuangli Kang, Shengjian Gong, Hanqing Ma, Peiwei Gong, Biao Kong

{"title":"Water-Dispersible MXene Governs Glycolysis for Cancer Synergistic Therapy","authors":"Jinfeng Liu, Yuwen Gong, Dandan Wang, Shuangli Kang, Shengjian Gong, Hanqing Ma, Peiwei Gong, Biao Kong","doi":"10.1002/smll.202411768","DOIUrl":"https://doi.org/10.1002/smll.202411768","url":null,"abstract":"Targeted delivery of glucose oxidase (GOx) using MXene remains a great challenge due to its poor dispersion and susceptibility to oxidation, and the hypoxia and high glutathione (GSH) contents make the situation even more worrying. Herein, a bovine serum albumin-mediated non-chemical modification strategy is developed, endowing titanium carbide MXene with long-time water-dispersion and further integrating it as a glycolysis-controllable therapy system without any chemotherapeutic agents. The system also constructs an effective O2 cycling and GSH degradation pathway, which fundamentally adjusts the tumor microenvironment and greatly elevates both in vivo and in vitro therapy effects. Reactive oxygen species are also generated and disrupt the balance of oxidative stress. Moreover, the reduced efficiency of mitochondrial energy production significantly inhibits the level of glycolysis and hinders energy supply. The study presents an effective cancer treatment combining starvation/photothermal therapy, which has superior anti-cancer effects due to the dual effects of reducing glucose levels and diminishing cellular energy production capacity.","PeriodicalId":228,"journal":{"name":"Small","volume":"102 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737119","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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