Yanyan Cui, Yushu Tang, Jing Lin, Junbo Wang, Horst Hahn, B. Breitung, Simon Schweidler, T. Brezesinski, M. Botros
High‐entropy materials have drawn much attention as battery materials due to their distinctive properties. Lithiated high‐entropy oxide (Li0.33(MgCoNiCuZn)0.67O, LiHEO) exhibits both high lithium‐ion and electronic conductivity, making it a potential coating material for layered Ni‐rich oxide cathodes (Li1+x(Ni1−y−zCoyMnz)1−xO2, NCM or NMC) in conventional Li‐ion battery cells; however, high‐temperature synthesis limits its application. Therefore, a photonic curing strategy is used for synthesizing LiHEO and the non‐lithiated form (denoted as high‐entropy oxide [HEO]), and nanoscale coatings are successfully produced on LiNi0.85Co0.1Mn0.05O2 (NCM851005) particles. To one's knowledge, this is the first report on particle coating with high‐entropy materials using photonic curing. NCM851005 with LiHEO‐modified surface shows good cycling stability, with a capacity retention of 97% at 1 C rate after 200 cycles. The improvement in electrochemical performance is attributed to the conformal coating that prevents structural changes caused by the reaction between cathode material and liquid electrolyte. Compared to bare NCM851005, the coated material shows a significantly reduced tendency for intergranular cracking, successfully preventing electrolyte penetration and suppressing side reactions. Overall, photonic curing presents a novel cost‐ and energy‐efficient synthesis and coating procedure that paves the way for surface modification of any heat‐sensitive material for a wide range of applications.
{"title":"Photonic Synthesis and Coating of High‐Entropy Oxide on Layered Ni‐Rich Cathode Particles","authors":"Yanyan Cui, Yushu Tang, Jing Lin, Junbo Wang, Horst Hahn, B. Breitung, Simon Schweidler, T. Brezesinski, M. Botros","doi":"10.1002/sstr.202400197","DOIUrl":"https://doi.org/10.1002/sstr.202400197","url":null,"abstract":"High‐entropy materials have drawn much attention as battery materials due to their distinctive properties. Lithiated high‐entropy oxide (Li0.33(MgCoNiCuZn)0.67O, LiHEO) exhibits both high lithium‐ion and electronic conductivity, making it a potential coating material for layered Ni‐rich oxide cathodes (Li1+x(Ni1−y−zCoyMnz)1−xO2, NCM or NMC) in conventional Li‐ion battery cells; however, high‐temperature synthesis limits its application. Therefore, a photonic curing strategy is used for synthesizing LiHEO and the non‐lithiated form (denoted as high‐entropy oxide [HEO]), and nanoscale coatings are successfully produced on LiNi0.85Co0.1Mn0.05O2 (NCM851005) particles. To one's knowledge, this is the first report on particle coating with high‐entropy materials using photonic curing. NCM851005 with LiHEO‐modified surface shows good cycling stability, with a capacity retention of 97% at 1 C rate after 200 cycles. The improvement in electrochemical performance is attributed to the conformal coating that prevents structural changes caused by the reaction between cathode material and liquid electrolyte. Compared to bare NCM851005, the coated material shows a significantly reduced tendency for intergranular cracking, successfully preventing electrolyte penetration and suppressing side reactions. Overall, photonic curing presents a novel cost‐ and energy‐efficient synthesis and coating procedure that paves the way for surface modification of any heat‐sensitive material for a wide range of applications.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141645901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zeru Wang, Yue Hou, Sen Li, Zhuang Xu, Xiaotao Zhu, Bing Guo, Dong Lu, Ke Wang
Structural lithium batteries integrated with energy storage and mechanical load-bearing capabilities hold great promise to revolutionize lightweight transport vehicles. However, the current development of structural batteries faces critical challenges in balancing the electrochemical and mechanical properties of the electrolytes. Herein, a super strong quasi-solid composite polymer electrolyte (QCPE) is successfully fabricated by reinforcing polyelectrolyte with 3D in situ self-assembled metal–organic framework-modified glass fiber (MOF@GF) soaking a small amount of liquid electrolyte, which provides continuous ion conductive pathways for fast Li+ transport and contributes to the high ambient ionic conductivity of 1.47 × 10−3 S cm−1. The micropores and abundant polar functional groups selectively restrict the transport of anions to afford a homogeneous Li+ flux and a high Li+ transference number (0.56). Simultaneously, the MOF@GF provides more effective reinforcement and a remarkably high tensile strength of 48.6 MPa, and Young's modulus of 1.66 GPa is achieved. Furthermore, the lithium metal batteries fabricated with this QCPE exhibit a long, stable operation lifespan of 2000 h and excellent cycling performance with LiFePO4 and NCM811 cathodes. This design strategy generally opens a new avenue for structural batteries with high ionic conductivity and outstanding mechanical properties, which holds great promise for industrial translation.
{"title":"Quasi-Solid Composite Polymer Electrolyte-Based Structural Batteries with High Ionic Conductivity and Excellent Mechanical Properties","authors":"Zeru Wang, Yue Hou, Sen Li, Zhuang Xu, Xiaotao Zhu, Bing Guo, Dong Lu, Ke Wang","doi":"10.1002/sstr.202400050","DOIUrl":"https://doi.org/10.1002/sstr.202400050","url":null,"abstract":"Structural lithium batteries integrated with energy storage and mechanical load-bearing capabilities hold great promise to revolutionize lightweight transport vehicles. However, the current development of structural batteries faces critical challenges in balancing the electrochemical and mechanical properties of the electrolytes. Herein, a super strong quasi-solid composite polymer electrolyte (QCPE) is successfully fabricated by reinforcing polyelectrolyte with 3D in situ self-assembled metal–organic framework-modified glass fiber (MOF@GF) soaking a small amount of liquid electrolyte, which provides continuous ion conductive pathways for fast Li<sup>+</sup> transport and contributes to the high ambient ionic conductivity of 1.47 × 10<sup>−3</sup> S cm<sup>−1</sup>. The micropores and abundant polar functional groups selectively restrict the transport of anions to afford a homogeneous Li<sup>+</sup> flux and a high Li<sup>+</sup> transference number (0.56). Simultaneously, the MOF@GF provides more effective reinforcement and a remarkably high tensile strength of 48.6 MPa, and Young's modulus of 1.66 GPa is achieved. Furthermore, the lithium metal batteries fabricated with this QCPE exhibit a long, stable operation lifespan of 2000 h and excellent cycling performance with LiFePO<sub>4</sub> and NCM811 cathodes. This design strategy generally opens a new avenue for structural batteries with high ionic conductivity and outstanding mechanical properties, which holds great promise for industrial translation.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tao Cheng, Peifen Lu, Yixi Dong, Jiabao Yu, Gang Wang, Jianwei Jiao, Peng Miao, Jin Jiao
Herein, a sequentially responsive peptide DNA bilingual nanobiosensor is developed, which allows integrated quantification of amyloid signaling pathway. In this system, upstream beta-site amyloid precursor protein-cleaving enzyme 1 (BACE1) protease and downstream Aβ oligomer (AβO) are designed as two inputs for the AND DNA logic gate. In the existence of both inputs, peptide substrate with aptamer can be sequentially cleaved, reporting electrochemical and fluorescence dual-mode outputs. In comparison with conventional single protease activity assay based on peptide nanotechnology, this strategy permits accurate diagnosis of Alzheimer's disease (AD) from normal subjects. More importantly, it can achieve distinguished diagnosis between AD and type 2 diabetes mellitus patients. This bilingual nanobiosensor is successfully applied to detect BACE1 (1–100 U mL−1) and AβO (5–1000 pg mL−1) with limit of detections as low as 0.10 U mL−1 and 0.76 pg mL−1, respectively. Furthermore, this strategy inspires advanced nanobiosensors to target the activation of other signaling pathways, which are potential tools for future biology and medicine investigation.
本文开发了一种顺序响应肽 DNA 双语纳米生物传感器，可对淀粉样蛋白信号通路进行综合定量。在该系统中，上游的β位淀粉样前体蛋白切割酶1（BACE1）蛋白酶和下游的Aβ寡聚体（AβO）被设计为AND DNA逻辑门的两个输入端。在两个输入端同时存在的情况下，带有适配体的多肽底物可以依次被裂解，从而产生电化学和荧光双模式输出。与传统的基于多肽纳米技术的单一蛋白酶活性检测相比，该策略可准确诊断正常人与阿尔茨海默病（AD）。更重要的是，它还能实现对阿尔茨海默病和 2 型糖尿病患者的鉴别诊断。这种双语纳米生物传感器成功应用于检测 BACE1（1-100 U mL-1）和 AβO（5-1000 pg mL-1），检测限分别低至 0.10 U mL-1 和 0.76 pg mL-1。此外，这种策略还启发了针对其他信号通路激活的先进纳米生物传感器，它们是未来生物学和医学研究的潜在工具。
{"title":"A Bilingual Nanobiosensor for Cross-Category Integrated Decoding of the Beta-Site Amyloid Precursor Protein-Cleaving Enzyme 1–Aβ Oligomer Signaling Pathway","authors":"Tao Cheng, Peifen Lu, Yixi Dong, Jiabao Yu, Gang Wang, Jianwei Jiao, Peng Miao, Jin Jiao","doi":"10.1002/sstr.202400241","DOIUrl":"https://doi.org/10.1002/sstr.202400241","url":null,"abstract":"Herein, a sequentially responsive peptide DNA bilingual nanobiosensor is developed, which allows integrated quantification of amyloid signaling pathway. In this system, upstream beta-site amyloid precursor protein-cleaving enzyme 1 (BACE1) protease and downstream Aβ oligomer (AβO) are designed as two inputs for the AND DNA logic gate. In the existence of both inputs, peptide substrate with aptamer can be sequentially cleaved, reporting electrochemical and fluorescence dual-mode outputs. In comparison with conventional single protease activity assay based on peptide nanotechnology, this strategy permits accurate diagnosis of Alzheimer's disease (AD) from normal subjects. More importantly, it can achieve distinguished diagnosis between AD and type 2 diabetes mellitus patients. This bilingual nanobiosensor is successfully applied to detect BACE1 (1–100 U mL<sup>−1</sup>) and AβO (5–1000 pg mL<sup>−1</sup>) with limit of detections as low as 0.10 U mL<sup>−1</sup> and 0.76 pg mL<sup>−1</sup>, respectively. Furthermore, this strategy inspires advanced nanobiosensors to target the activation of other signaling pathways, which are potential tools for future biology and medicine investigation.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Insufficient reactive oxygen species originating from hypoxia and high glutathione (GSH) in the tumor microenvironment (TME) is an important reason for radiotherapy (RT) resistance. Currently, radiosensitizers that remodel TME are widely investigated to enhance RT. However, developing an effective nano-radiosensitization system that removes radiotherapy-resistant factors from TME to boost RT effect while visualizing tumor imaging to aid therapy remains a challenge. Herein, MnO2 nanosheets are grown on the surface of ultrasmall Eu-doped NaGdF4 (NaGdF4:Eu3+) nanoparticles and modified by biocompatible DSPE-PEG2000 to prepare NaGdF4:Eu3+@MnO2@PEG nanoparticles (denoted as GMP NPs) as a radiosensitizer, which not only can reverse the TME by degrading H2O2 to produce oxygen and consuming high GSH but also achieve computed tomography (CT)and magnetic resonance (MR) imaging. When GMP NPs synergize with X-ray, a better antitumor effect is achieved in both HeLa cells and tumor-bearing mice, compared with X-ray alone. In addition, both paramagnetic Mn2+ ionsproduced by decomposing MnO2 in TME and NaGdF4:Eu3+ nanoparticles enhance T1-weighted MR imaging. NaGdF4:Eu3+ nanoparticles containing high atomic number of Gd/Eu effectively attenuate X-ray to enhance CT imaging. The work provides new insights for developing an efficient RT sensitization platform integrating antitumor therapeutic effect as well as CT/MR dual-modal imaging.
肿瘤微环境（TME）中缺氧和高谷胱甘肽（GSH）导致的活性氧不足是放疗（RT）耐药的重要原因。目前，重塑肿瘤微环境的放射增敏剂被广泛用于增强放疗。然而，开发一种有效的纳米放射增敏系统，既能清除肿瘤微环境中的放疗耐药因子，提高放疗效果，又能通过可视化肿瘤成像辅助治疗，仍然是一项挑战。在此，MnO2 纳米片生长在超小 Eu 掺杂 NaGdF4（NaGdF4:Eu3+）纳米颗粒表面，并用生物相容性 DSPE-PEG2000 修饰，制备出 NaGdF4：Eu3+@MnO2@PEG 纳米粒子（简称 GMP NPs）作为放射增敏剂，不仅能通过降解 H2O2 产生氧气和消耗大量 GSH 来逆转 TME，还能实现计算机断层扫描（CT）和磁共振（MR）成像。当 GMP NPs 与 X 射线协同作用时，对 HeLa 细胞和肿瘤小鼠的抗肿瘤效果比单独使用 X 射线更好。此外，TME 中 MnO2 分解产生的顺磁 Mn2+ 离子和 NaGdF4:Eu3+ 纳米粒子都能增强 T1 加权磁共振成像。含有高原子序数 Gd/Eu 的 NaGdF4:Eu3+ 纳米粒子能有效衰减 X 射线，从而增强 CT 成像。这项工作为开发集抗肿瘤治疗效果和 CT/MR 双模态成像于一体的高效 RT 增敏平台提供了新的思路。
{"title":"Gadolinium-Manganese-Based Nanoplatform Reverses Radiotherapy Resistant Factors for Radiotherapy Sensitization and Computed Tomography/Magnetic Resonance Dual-Modal Imaging","authors":"Yingwen Li, Panhong Niu, Zhenzhong Han, Xueqian Wang, Duanmin Gao, Yunjian Xu, Qingbin He, Jianfeng Qiu, Yinglun Sun","doi":"10.1002/sstr.202400033","DOIUrl":"https://doi.org/10.1002/sstr.202400033","url":null,"abstract":"Insufficient reactive oxygen species originating from hypoxia and high glutathione (GSH) in the tumor microenvironment (TME) is an important reason for radiotherapy (RT) resistance. Currently, radiosensitizers that remodel TME are widely investigated to enhance RT. However, developing an effective nano-radiosensitization system that removes radiotherapy-resistant factors from TME to boost RT effect while visualizing tumor imaging to aid therapy remains a challenge. Herein, MnO<sub>2</sub> nanosheets are grown on the surface of ultrasmall Eu-doped NaGdF<sub>4</sub> (NaGdF<sub>4</sub>:Eu<sup>3+</sup>) nanoparticles and modified by biocompatible DSPE-PEG<sub>2000</sub> to prepare NaGdF<sub>4</sub>:Eu<sup>3+</sup>@MnO<sub>2</sub>@PEG nanoparticles (denoted as GMP NPs) as a radiosensitizer, which not only can reverse the TME by degrading H<sub>2</sub>O<sub>2</sub> to produce oxygen and consuming high GSH but also achieve computed tomography (CT)and magnetic resonance (MR) imaging. When GMP NPs synergize with X-ray, a better antitumor effect is achieved in both HeLa cells and tumor-bearing mice, compared with X-ray alone. In addition, both paramagnetic Mn<sup>2+</sup> ionsproduced by decomposing MnO<sub>2</sub> in TME and NaGdF<sub>4</sub>:Eu<sup>3+</sup> nanoparticles enhance T<sub>1</sub>-weighted MR imaging. NaGdF<sub>4</sub>:Eu<sup>3+</sup> nanoparticles containing high atomic number of Gd/Eu effectively attenuate X-ray to enhance CT imaging. The work provides new insights for developing an efficient RT sensitization platform integrating antitumor therapeutic effect as well as CT/MR dual-modal imaging.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiacheng Liu, Song-Zhu Kure-Chu, Shuji Katsuta, Mengmeng Zhang, Shaoli Fang, Takashi Matsubara, Yoko Sakurai, Takehiko Hihara, Ray H. Baughman, Hitoshi Yashiro, Long Pan, Wei Zhang, Zheng Ming Sun
Enhancing tribological performance through nanostructure control is crucial for saving energy and improving wear resistance for diverse applications. We introduce a new electrochemical approach that integrates aluminum (Al) anodization, tin alternating current (AC) electrodeposition, and anodic MoS2 electrosynthesis for fabricating nanostructured Al2O3/Sn(S)MoS2 composite films on AlSiCu casting alloys. Our unique process uses Sn-modified MoS2 deposition to form robust solid lubricant MoS2–SnS electrodeposits within the nanochannels and microsized voids/defects of anodic alumina matrix films on the base materials, resulting in a bilayered Al2O3/SnSMoS2 and MoS2–SnS–Sn composite film. The AC-deposited Sn enhances conductivity in the anodic alumina matrix film, acts as catalytic nuclei for Sn@SnS@MoS2 core-shell nanoparticles and a dense top layer, and serves as a reductant for the direct synthesis of hybrid solid lubricant MoS2–SnS from MoS3 by anodic electrolysis of MoS42− ions. The resulting nanocomposite film provides a two-fold increase in lubricity (friction coefficient (COF) μ = 0.14 ⇒ 0.07) and a ten-fold improvement in wear resistance (COF μ < 0.2) compared to conventional Al2O3/MoS2 film formed by anodizing and reanodizing. The effectiveness of the Al2O3/Sn(S)MoS2 composite is further validated through real automotive engine piston tests.
{"title":"Tenfold Enhancement of Wear Resistance by Electrosynthesis of a Nanostructured Self-Lubricating Al2O3/Sn(S)?MoS2 Composite Film on Al?Si?Cu Casting Alloys","authors":"Jiacheng Liu, Song-Zhu Kure-Chu, Shuji Katsuta, Mengmeng Zhang, Shaoli Fang, Takashi Matsubara, Yoko Sakurai, Takehiko Hihara, Ray H. Baughman, Hitoshi Yashiro, Long Pan, Wei Zhang, Zheng Ming Sun","doi":"10.1002/sstr.202400172","DOIUrl":"https://doi.org/10.1002/sstr.202400172","url":null,"abstract":"Enhancing tribological performance through nanostructure control is crucial for saving energy and improving wear resistance for diverse applications. We introduce a new electrochemical approach that integrates aluminum (Al) anodization, tin alternating current (AC) electrodeposition, and anodic MoS<sub>2</sub> electrosynthesis for fabricating nanostructured Al<sub>2</sub>O<sub>3</sub>/Sn(S)<span></span>MoS<sub>2</sub> composite films on Al<span></span>Si<span></span>Cu casting alloys. Our unique process uses Sn-modified MoS<sub>2</sub> deposition to form robust solid lubricant MoS<sub>2</sub>–SnS electrodeposits within the nanochannels and microsized voids/defects of anodic alumina matrix films on the base materials, resulting in a bilayered Al<sub>2</sub>O<sub>3</sub>/SnS<span></span>MoS<sub>2</sub> and MoS<sub>2</sub>–SnS–Sn composite film. The AC-deposited Sn enhances conductivity in the anodic alumina matrix film, acts as catalytic nuclei for Sn@SnS@MoS<sub>2</sub> core-shell nanoparticles and a dense top layer, and serves as a reductant for the direct synthesis of hybrid solid lubricant MoS<sub>2</sub>–SnS from MoS<sub>3</sub> by anodic electrolysis of MoS<sub>4</sub><sup>2−</sup> ions. The resulting nanocomposite film provides a two-fold increase in lubricity (friction coefficient (COF) μ = 0.14 ⇒ 0.07) and a ten-fold improvement in wear resistance (COF μ < 0.2) compared to conventional Al<sub>2</sub>O<sub>3</sub>/MoS<sub>2</sub> film formed by anodizing and reanodizing. The effectiveness of the Al<sub>2</sub>O<sub>3</sub>/Sn(S)<span></span>MoS<sub>2</sub> composite is further validated through real automotive engine piston tests.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Torben Hüsing, Daniel Van Opdenbosch, Broder Rühmann, Cordt Zollfrank, Ellen Reuter, Volker Sieber
Biohybrid Materials
生物杂交材料
{"title":"Characterization of Functional Biohybrid Materials Based on Saccharomyces Cerevisiae Biomass","authors":"Torben Hüsing, Daniel Van Opdenbosch, Broder Rühmann, Cordt Zollfrank, Ellen Reuter, Volker Sieber","doi":"10.1002/sstr.202470033","DOIUrl":"https://doi.org/10.1002/sstr.202470033","url":null,"abstract":"<b>Biohybrid Materials</b>","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141571186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Diogo V. Saraiva, Steven N. Remiëns, Ethan I. L. Jull, Ivo R. Vermaire, Lisa Tran
Cellulose Nanocrystals
纤维素纳米晶体
{"title":"Flexible, Photonic Films of Surfactant-Functionalized Cellulose Nanocrystals for Pressure and Humidity Sensing","authors":"Diogo V. Saraiva, Steven N. Remiëns, Ethan I. L. Jull, Ivo R. Vermaire, Lisa Tran","doi":"10.1002/sstr.202470032","DOIUrl":"https://doi.org/10.1002/sstr.202470032","url":null,"abstract":"<b>Cellulose Nanocrystals</b>","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141571188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis of Red, Green, and Blue Carbon Quantum Dots and Construction of Multicolor Cellulose-Based Light-Emitting Diodes","authors":"Xinrui Chen, Xing Han, Caixia Zhang, Xue Ou, Xiaoli Liu, Junhua Zhang, Wei Liu, Arthur J. Ragauskas, Xueping Song, Zhanying Zhang","doi":"10.1002/sstr.202470034","DOIUrl":"https://doi.org/10.1002/sstr.202470034","url":null,"abstract":"<b>Light-Emitting Diodes</b>","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141571187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tianxin Bai, Qiujie Wang, Yunfei Bai, Qichao Meng, Hongyuan Zhao, Ziying Wen, Haibo Sun, Li Huang, Junke Jiang, Dan Huang, Feng Liu, William W. Yu
Lanthanide-Based Metal Halides
镧系金属卤化物
{"title":"From Dopant to Host: Solution Synthesis and Light-Emitting Applications of Organic-Inorganic Lanthanide-Based Metal Halides","authors":"Tianxin Bai, Qiujie Wang, Yunfei Bai, Qichao Meng, Hongyuan Zhao, Ziying Wen, Haibo Sun, Li Huang, Junke Jiang, Dan Huang, Feng Liu, William W. Yu","doi":"10.1002/sstr.202470030","DOIUrl":"https://doi.org/10.1002/sstr.202470030","url":null,"abstract":"<b>Lanthanide-Based Metal Halides</b>","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141571184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Frank Sailer, Hipassia M. Moura, Taniya Purkait, Lars Vogelsang, Markus Sauer, Annette Foelske, Rainer F. Winter, Alexandre Ponrouch, Miriam M. Unterlass
Hybrid materials (HMs) combine the high diversity of functionalities of organic compounds with properties typical for inorganic materials, such as high mechanical strength or high thermal stability. Herein, HMs combining organic pigment molecules and TiO2 as inorganic component, with covalently linked components, i.e., so-called class II HMs, are reported. The synthesis of such HMs is intrinsically challenging, as the apolar organic pigment component and the inorganic polar TiO2 component require different conditions for their respective formation. Herein, we circumvent this issue by employing solvothermal synthesis in superheated isopropanol, which through temperature tunability of the solvent properties allows for both generating and linking both components in one-pot. First, it is shown that an organic benzimidazole-based pigment molecule designed for readily binding to Ti can be synthesized solvothermally. Second, new class II titanium-based HMs are generated from Ti(OiPr)4 and pigment precursors in a solvothermal reaction. The pigment@TiO2 HMs feature significant porosity and are structurally identified as layered structures of lepidocrocite-like TiO2 linked via pigment molecules. These layered HMs assemble into hierarchical nanoflowers, and depending on the pigment segments, different interlayer spacings in between inorganic layers are observed. Third, the pigment@TiO2 materials are shown to be usable as electrode materials in lithium-ion batteries.
混合材料（HMs）结合了有机化合物的高功能多样性和无机材料的典型特性，如高机械强度或高热稳定性。本文报告了有机颜料分子与作为无机成分的二氧化钛（TiO2）共价结合的混合材料，即所谓的第二类混合材料。由于极性有机颜料成分和无机极性二氧化钛成分的形成需要不同的条件，因此合成此类 HMs 本身就具有挑战性。在本文中，我们通过在过热异丙醇中采用溶解热合成法来规避这一问题，该方法通过对溶剂特性的温度调节，可在一锅内同时生成和连接两种成分。首先，我们证明了一种基于苯并咪唑的有机颜料分子可以通过溶解热合成的方式与钛结合。其次，在溶热反应中由 Ti(OiPr)4 和颜料前体生成新的第二类钛基 HM。颜料@TiO2 HMs 具有显著的多孔性，在结构上被确定为通过颜料分子连接的鳞片状二氧化钛的层状结构。这些分层的 HMs 组装成分层的纳米花束，根据颜料段的不同，无机层之间的层间距也不同。第三，颜料@TiO2 材料可用作锂离子电池的电极材料。
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