Nano-Micro Letters最新文献

{"title":"Cationic and Anionic Antimicrobial Agents Co-Templated Mesostructured Silica Nanocomposites with a Spiky Nanotopology and Enhanced Biofilm Inhibition Performance","authors":"Yaping Song,&nbsp;Qiang Sun,&nbsp;Jiangqi Luo,&nbsp;Yueqi Kong,&nbsp;Bolin Pan,&nbsp;Jing Zhao,&nbsp;Yue Wang,&nbsp;Chengzhong Yu","doi":"10.1007/s40820-022-00826-4","DOIUrl":"10.1007/s40820-022-00826-4","url":null,"abstract":"<div><div>\u0000 <span>AbstractSection</span>\u0000 Highlights\u0000 \u0000 <ul>\u0000 <li>\u0000 <p>A ‘dual active templating’ strategy is firstly reported, using cationic and anionic bactericidal agents as co-templates for the preparation of antibacterial silica nanocomposite with spiky nanotopography.</p>\u0000 </li>\u0000 <li>\u0000 <p>The spiky nanocomposite exhibited enhanced antibacterial and biofilm inhibition performance, compared to pure antimicrobial cationic agent templated smooth silica nanocomposite.</p>\u0000 </li>\u0000 </ul>\u0000 \u0000 \u0000 <span>AbstractSection</span>\u0000 Abstract\u0000 <p>Silica-based materials are usually used as delivery systems for antibacterial applications. In rare cases, bactericidal cationic surfactant templated silica composites have been reported as antimicrobial agents. However, their antibacterial efficacy is limited due to limited control in content and structure. Herein, we report a “dual active templating” strategy in the design of nanostructured silica composites with intrinsic antibacterial performance. This strategy uses cationic and anionic structural directing agents as dual templates, both with active antibacterial property. The cationic-anionic dual active templating strategy further contributes to antibacterial nanocomposites with a spiky surface. With controllable release of dual active antibacterial agents, the spiky nanocomposite displays enhanced anti-microbial and anti-biofilm properties toward <i>Staphylococcus epidermidis</i>. These findings pave a new avenue toward the designed synthesis of novel antibacterial nanocomposites with improved performance for diverse antibacterial applications.</p><figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 \u0000 </div></div>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00826-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5124008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multilayer Strategy for Photoelectrochemical Hydrogen Generation: New Electrode Architecture that Alleviates Multiple Bottlenecks","authors":"Selvaraj Seenivasan,&nbsp;Hee Moon,&nbsp;Do-Heyoung Kim","doi":"10.1007/s40820-022-00822-8","DOIUrl":"10.1007/s40820-022-00822-8","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000 <ul>\u0000 <li>\u0000 <p>A multilayer architecture of layers with different functions alleviates bottlenecks in photoelectrochemical (PEC) hydrogen generation. Precise thickness control within a few nanometers defines each layer’s functionality.</p>\u0000 </li>\u0000 <li>\u0000 <p>A Bi₂S₃/NiS/NiFeO/TiO₂ photoanode had a photocurrent density of 33.3 mA cm⁻² at 1.23 VRHE under AM 1.5 G illumination.</p>\u0000 </li>\u0000 <li>\u0000 <p>Noble-metal-free seawater splitting was performed in an integrated PEC-electrocatalytic cell with an NiS electrocathode and Bi₂S₃/NiS/NiFeO/TiO₂ photoanode.</p>\u0000 </li>\u0000 </ul>\u0000 \u0000 </div></div>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00822-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4975374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fully Roll-to-Roll Processed Efficient Perovskite Solar Cells via Precise Control on the Morphology of PbI2:CsI Layer","authors":"Hengyue Li,&nbsp;Chuantian Zuo,&nbsp;Dechan Angmo,&nbsp;Hasitha Weerasinghe,&nbsp;Mei Gao,&nbsp;Junliang Yang","doi":"10.1007/s40820-022-00815-7","DOIUrl":"10.1007/s40820-022-00815-7","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000 <ul>\u0000 <li>\u0000 <p>The slot-die-coated porous PbI₂:CsI film assisted with nitrogen blowing can promote the rapid and complete transformation of perovskite film.</p>\u0000 </li>\u0000 <li>\u0000 <p>The crystallinity and morphology of slot-die-coated perovskite film are significantly improved by controlling substrate temperature.</p>\u0000 </li>\u0000 <li>\u0000 <p>Fully slot-die-coated perovskite solar cells achieve a power conversion efficiency (PCE) of 18.13%, and fully roll-to-roll printed flexible PSCs achieve a PCE of 13.00% in ambient condition.</p>\u0000 </li>\u0000 </ul>\u0000 \u0000 </div></div>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00815-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4973962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosting Zn||I2 Battery’s Performance by Coating a Zeolite-Based Cation-Exchange Protecting Layer","authors":"Wenshuo Shang,&nbsp;Qiang Li,&nbsp;Fuyi Jiang,&nbsp;Bingkun Huang,&nbsp;Jisheng Song,&nbsp;Shan Yun,&nbsp;Xuan Liu,&nbsp;Hideo Kimura,&nbsp;Jianjun Liu,&nbsp;Litao Kang","doi":"10.1007/s40820-022-00825-5","DOIUrl":"10.1007/s40820-022-00825-5","url":null,"abstract":"<p>The intrinsically safe Zn||I₂ battery, one of the leading candidates aiming to replace traditional Pb-acid batteries, is still seriously suffering from short shelf and cycling lifespan, due to the uncontrolled I₃⁻-shuttling and dynamic parasitic reactions on Zn anodes. Considering the fact that almost all these detrimental processes terminate on the surfaces of Zn anodes, modifying Zn anodes’ surface with protecting layers should be one of the most straightforward and thorough approaches to restrain these processes. Herein, a facile zeolite-based cation-exchange protecting layer is designed to comprehensively suppress the unfavored parasitic reactions on the Zn anodes. The negatively-charged cavities in the zeolite lattice provide highly accessible migration channels for Zn²⁺, while blocking anions and electrolyte from passing through. This low-cost cation-exchange protecting layer can simultaneously suppress self-discharge, anode corrosion/passivation, and Zn dendrite growth, awarding the Zn||I₂ batteries with ultra-long cycle life (91.92% capacity retention after 5600 cycles at 2 A g⁻¹), high coulombic efficiencies (99.76% in average) and large capacity (203–196 mAh g⁻¹ at 0.2 A g⁻¹). This work provides a highly affordable approach for the construction of high-performance Zn-I₂ aqueous batteries.</p>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00825-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4975499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advances in Design Strategies and Multifunctionality of Flexible Electromagnetic Interference Shielding Materials","authors":"Junye Cheng,&nbsp;Chuanbing Li,&nbsp;Yingfei Xiong,&nbsp;Huibin Zhang,&nbsp;Hassan Raza,&nbsp;Sana Ullah,&nbsp;Jinyi Wu,&nbsp;Guangping Zheng,&nbsp;Qi Cao,&nbsp;Deqing Zhang,&nbsp;Qingbin Zheng,&nbsp;Renchao Che","doi":"10.1007/s40820-022-00823-7","DOIUrl":"10.1007/s40820-022-00823-7","url":null,"abstract":"<p>With rapid development of 5G communication technologies, electromagnetic interference (EMI) shielding for electronic devices has become an urgent demand in recent years, where the development of corresponding EMI shielding materials against detrimental electromagnetic radiation plays an essential role. Meanwhile, the EMI shielding materials with high flexibility and functional integrity are highly demanded for emerging shielding applications. Hitherto, a variety of flexible EMI shielding materials with lightweight and multifunctionalities have been developed. In this review, we not only introduce the recent development of flexible EMI shielding materials, but also elaborate the EMI shielding mechanisms and the index for \"green EMI shielding\" performance. In addition, the construction strategies for sophisticated multifunctionalities of flexible shielding materials are summarized. Finally, we propose several possible research directions for flexible EMI shielding materials in near future, which could be inspirational to the fast-growing next-generation flexible electronic devices with reliable and multipurpose protections as offered by EMI shielding materials.</p>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00823-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4976386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hierarchical Ti3C2Tx@ZnO Hollow Spheres with Excellent Microwave Absorption Inspired by the Visual Phenomenon of Eyeless Urchins","authors":"Yan-Qin Wang,&nbsp;Hai-Bo Zhao,&nbsp;Jin-Bo Cheng,&nbsp;Bo-Wen Liu,&nbsp;Qiang Fu,&nbsp;Yu-Zhong Wang","doi":"10.1007/s40820-022-00817-5","DOIUrl":"10.1007/s40820-022-00817-5","url":null,"abstract":"<div><p>Ingenious microstructure design and rational composition selection are effective approaches to realize high-performance microwave absorbers, and the advancement of biomimetic manufacturing provides a new strategy. In nature, urchins are the animals without eyes but can “see”, because their special structure composed of regular spines and spherical photosensitive bodies “amplifies” the light-receiving ability. Herein, inspired by the above phenomenon, the biomimetic urchin-like Ti₃C₂T_<i>x</i>@ZnO hollow microspheres are rationally designed and fabricated, in which ZnO nanoarrays (length: ~ 2.3 μm, diameter: ~ 100 nm) as the urchin spines are evenly grafted onto the surface of the Ti₃C₂T_<i>x</i> hollow spheres (diameter: ~ 4.2 μm) as the urchin spherical photosensitive bodies. The construction of gradient impedance and hierarchical heterostructures enhance the attenuation of incident electromagnetic waves. And the EMW loss behavior is further revealed by limited integral simulation calculations, which fully highlights the advantages of the urchin-like architecture. As a result, the Ti₃C₂T_<i>x</i>@ZnO hollow spheres deliver a strong reflection loss of − 57.4 dB and broad effective absorption bandwidth of 6.56 GHz, superior to similar absorbents. This work provides a new biomimetic strategy for the design and manufacturing of advanced microwave absorbers.</p><figure><div><div><div><picture><source><img></source></picture></div></div></div></figure></div>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00817-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5130051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Visualized SERS Imaging of Single Molecule by Ag/Black Phosphorus Nanosheets","authors":"Chenglong Lin,&nbsp;Shunshun Liang,&nbsp;Yusi Peng,&nbsp;Li Long,&nbsp;Yanyan Li,&nbsp;Zhengren Huang,&nbsp;Nguyen Viet Long,&nbsp;Xiaoying Luo,&nbsp;Jianjun Liu,&nbsp;Zhiyuan Li,&nbsp;Yong Yang","doi":"10.1007/s40820-022-00803-x","DOIUrl":"10.1007/s40820-022-00803-x","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000 <ul>\u0000 <li>\u0000 <p>Ag/BP-NS exhibit remarkable surface-enhanced Raman scattering performance with single-molecule detection ability. This remarkable enhancement can be attributed to the synergistic resonance enhancement of R6G molecular resonance, photo-induced charge transfer resonance and electromagnetic resonance.</p>\u0000 </li>\u0000 <li>\u0000 <p>A new polarization-mapping method was proposed, which can quickly screen out single-molecule signals and prove that the obtained spectra are emitted by single molecule.</p>\u0000 </li>\u0000 <li>\u0000 <p>The recognition of different tumor exosomes can be realized combining the method of machine learning.</p>\u0000 </li>\u0000 </ul>\u0000 \u0000 <span>AbstractSection</span>\u0000 Abstract\u0000 <p>Single-molecule detection and imaging are of great value in chemical analysis, biomarker identification and other trace detection fields. However, the localization and visualization of single molecule are still quite a challenge. Here, we report a special-engineered nanostructure of Ag nanoparticles embedded in multi-layer black phosphorus nanosheets (Ag/BP-NS) synthesized by a unique photoreduction method as a surface-enhanced Raman scattering (SERS) sensor. Such a SERS substrate features the lowest detection limit of 10^–20 mol L⁻¹ for R6G, which is due to the three synergistic resonance enhancement of molecular resonance, photo-induced charge transfer resonance and electromagnetic resonance. We propose a polarization-mapping strategy to realize the detection and visualization of single molecule. In addition, combined with machine learning, Ag/BP-NS substrates are capable of recognition of different tumor exosomes, which is meaningful for monitoring and early warning of the cancer. This work provides a reliable strategy for the detection of single molecule and a potential candidate for the practical bio-application of SERS technology. </p><figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 \u0000 </div></div>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00803-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4620373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isotype Heterojunction-Boosted CO2 Photoreduction to CO","authors":"Chaogang Ban,&nbsp;Youyu Duan,&nbsp;Yang Wang,&nbsp;Jiangping Ma,&nbsp;Kaiwen Wang,&nbsp;Jiazhi Meng,&nbsp;Xue Liu,&nbsp;Cong Wang,&nbsp;Xiaodong Han,&nbsp;Guozhong Cao,&nbsp;Liyong Gan,&nbsp;Xiaoyuan Zhou","doi":"10.1007/s40820-022-00821-9","DOIUrl":"10.1007/s40820-022-00821-9","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000 <ul>\u0000 <li>\u0000 <p>The g-C₃N₄ isotype heterojunction was synthesized for photocatalytic CO₂ reduction, which exhibits an impressive activity and outstanding stability.</p>\u0000 </li>\u0000 <li>\u0000 <p>The isotype heterojunction presents more favorable charge separation and transfer performance than the single components.</p>\u0000 </li>\u0000 <li>\u0000 <p>The enhanced photogenerated charge dynamics in isotype heterojunction facilitates the production of key intermediates and thus the whole reaction kinetics.</p>\u0000 </li>\u0000 </ul>\u0000 \u0000 </div></div>","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00821-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4504770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Nb2C MXene-Functionalized Scaffolds Enables Osteosarcoma Phototherapy and Angiogenesis/Osteogenesis of Bone Defects","authors":"Junhui Yin,&nbsp;Shanshan Pan,&nbsp;Xiang Guo,&nbsp;Youshui Gao,&nbsp;Daoyu Zhu,&nbsp;Qianhao Yang,&nbsp;Junjie Gao,&nbsp;Changqing Zhang,&nbsp;Yu Chen","doi":"10.1007/s40820-022-00805-9","DOIUrl":"10.1007/s40820-022-00805-9","url":null,"abstract":"","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00805-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4313894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Memristive Devices Based on Two-Dimensional Transition Metal Chalcogenides for Neuromorphic Computing","authors":"Ki Chang Kwon,&nbsp;Ji Hyun Baek,&nbsp;Kootak Hong,&nbsp;Soo Young Kim,&nbsp;Ho Won Jang","doi":"10.1007/s40820-022-00816-6","DOIUrl":"10.1007/s40820-022-00816-6","url":null,"abstract":"","PeriodicalId":48779,"journal":{"name":"Nano-Micro Letters","volume":null,"pages":null},"PeriodicalIF":26.6,"publicationDate":"2022-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-022-00816-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4220809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}