Science China Materials最新文献

Tailoring supramolecular antimicrobial peptides: from self-assembled nanoarchitectures to activities 定制超分子抗菌肽：从自组装纳米结构到活性

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3079-x

Saisai Wang, Jian Wu, Yuan Tian, Shaobing Zhou

{"title":"Tailoring supramolecular antimicrobial peptides: from self-assembled nanoarchitectures to activities","authors":"Saisai Wang, Jian Wu, Yuan Tian, Shaobing Zhou","doi":"10.1007/s40843-024-3079-x","DOIUrl":"https://doi.org/10.1007/s40843-024-3079-x","url":null,"abstract":"The emergence of antibiotic-resistant bacteria has become a major threat to global public health and has prompted the discovery of antibiotic alternatives. Natural antimicrobial peptides (AMPs) confer a unique non-specific membrane rupture mechanism, showing great potential in killing drug-resistant bacteria. However, natural AMPs have certain weaknesses, including stability and toxicity issues, which seriously hinder their in vivo applications. Synthetic AMPs possess similar characteristics to natural AMPs, including positive charges, amphiphilicity, and the ability to fold into diverse secondary structures. These properties are essential for AMPs penetration into membranes, allowing them to exhibit antimicrobial effects. Moreover, supramolecular self-assembly, facilitated by hydrophobic interaction, hydrogen bonding, π-π stacking, and electrostatic interaction, can generate nanoparticles, nanotubes, nanofibers, and hydrogels with well-defined nanoarchitectures. Utilizing peptide self-assembly to form various nanoarchitectures is an effective approach for generating antibacterial nanomaterials, offering potential advantages such as enhanced antibacterial properties, improved stability, and reduced cytotoxicity. This review highlights recent advancements in tailoring supramolecular AMPs to create diverse nano-architectures for combating infectious diseases.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142261774","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

Tailoring alloy-reaction-induced semi-coherent interface to guide sodium nucleation and growth for long-term anode-less sodium-metal batteries 定制合金反应诱导的半相干界面，引导钠的成核和生长，用于长期无阳极钠金属电池

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3084-4

Pei Ma, Yaoyang Zhang, Wenbin Li, Jun Luo, Longfei Wen, Guochuan Tang, Jingjing Gai, Qingbao Wang, Lingfei Zhao, Junmin Ge, Weihua Chen

{"title":"Tailoring alloy-reaction-induced semi-coherent interface to guide sodium nucleation and growth for long-term anode-less sodium-metal batteries","authors":"Pei Ma, Yaoyang Zhang, Wenbin Li, Jun Luo, Longfei Wen, Guochuan Tang, Jingjing Gai, Qingbao Wang, Lingfei Zhao, Junmin Ge, Weihua Chen","doi":"10.1007/s40843-024-3084-4","DOIUrl":"https://doi.org/10.1007/s40843-024-3084-4","url":null,"abstract":"Sodium metal batteries are emerging as promising energy storage technologies owing to their high-energy density and rich resources. However, the challenge of achieving continuous operation at high areal capacity hinders the application of this system. Here, a robust two-dimensional tin/sodium–tin alloy interface was introduced onto an Al substrate as an anode via an industrial electroplating strategy. Unlike the widely accepted in situ formation of Na15Sn4 alloys, the formation of Na9Sn4 alloys results in a semi-coherent interface with sodium due to low lattice mismatch (20.84%), which alleviates the lattice stress of sodium deposition and induces subsequent dense sodium deposition under high areal capacity. In addition, the strong interaction of Sn with anions allows more PF6− to preferentially participate in the interfacial solvation structure, thereby facilitating the formation of a thin (10 nm) NaF-rich solid electrolyte interface. Therefore, the substrate can withstand a high areal capacity of 5 mA h cm−2, exhibiting a high average Coulombic efficiency of 99.7%. The full battery exhibits long-term cycling performance (600 cycles) with a low decay rate of 0.0018% per cycle at 60 mA g−1.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208927","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 tracking CO2-assisted isothermal-isobaric synthesis of self-assembled Bi-based photocatalyst using novel SAXS/XRD/XAFS combined technique 利用新型 SAXS/XRD/XAFS 组合技术原位跟踪 CO2 辅助的等温-等压合成自组装 Bi 基光催化剂

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3069-1

Yunpeng Liu, Shunzheng Zhao, Jiajun Zhong, Jianglong Liu, Baotong Chen, You Liao, Lei Yao, Zhongjun Chen, Buxing Han, Zhonghua Wu

{"title":"In-situ tracking CO2-assisted isothermal-isobaric synthesis of self-assembled Bi-based photocatalyst using novel SAXS/XRD/XAFS combined technique","authors":"Yunpeng Liu, Shunzheng Zhao, Jiajun Zhong, Jianglong Liu, Baotong Chen, You Liao, Lei Yao, Zhongjun Chen, Buxing Han, Zhonghua Wu","doi":"10.1007/s40843-024-3069-1","DOIUrl":"https://doi.org/10.1007/s40843-024-3069-1","url":null,"abstract":"The synthetic path of a catalyst determines its morphology, species, and performance, and in-situ monitoring the catalyst formation process is fascinating and challenging. Herein, a newly developed synchrotron radiation small-angle X-ray scattering/X-ray diffraction/X-ray absorption fine structure (SAXS/XRD/XAFS) combined technique was used to in-situ monitor the isothermal-isobaric synthesis process of CO2-assisted (BiO)2CO3 (BOC) photocatalyst, and the atomic near-neighbor structure, crystalline structure and nanoscale particle size evolution with reaction time were simultaneously captured. The results show that both polyvinyl pyrrolidone and CO2 formed uniformly-distributed nano-sized scatterers in the Bi-based precursor solution, presenting short-range ordered structures to a certain extent. The as-prepared BOC catalytic particles underwent the evolution process of initial Bi(OH)3 precipitate, early-stage formed KBiO2 molecules, intermediate amorphous (BiO)4CO3(OH)2 nanoparticles, and finally crystallized flower-like BOC particles self-assembled by nanosheets. The flower-like BOC particles, Bi/BOC composite, and Bi nanospheres were further prepared with different synthesis paths. Flower-like BOC particles showed the best photocatalytic degradation performance of RhB. Scavenger experiment and theoretical calculation revealed the photocatalytic mechanisms of BOC. This work has implications for path-dependent synthesis of other catalysts.","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208921","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

Porous carbon microspheres assembled by defective nitrogen and sulfur co-doped nanosheets as anode materials for lithium-/sodium-ion batteries 由缺陷氮和硫共掺杂纳米片组装而成的多孔碳微球作为锂离子/钠离子电池的负极材料

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3041-3

Yutian Chen, Jie You, Xiaoran Zhao, Mai Li, Xiaolei Han, Hui Liu, Hongran Sun, Xiaojun Wang, Huifang Li, Peng Wang, Zhiming Liu

{"title":"Porous carbon microspheres assembled by defective nitrogen and sulfur co-doped nanosheets as anode materials for lithium-/sodium-ion batteries","authors":"Yutian Chen, Jie You, Xiaoran Zhao, Mai Li, Xiaolei Han, Hui Liu, Hongran Sun, Xiaojun Wang, Huifang Li, Peng Wang, Zhiming Liu","doi":"10.1007/s40843-024-3041-3","DOIUrl":"https://doi.org/10.1007/s40843-024-3041-3","url":null,"abstract":"Carbon-based anode materials are widely used in various battery energy storage systems due to their low cost, wide source, high conductivity and easy morphology control. However, current commercially available anode materials as active materials for lithium-/sodium-ion batteries generally suffer from large volume changes and poor rate performance. In response, we synthesized defect-rich N, S co-doped two dimensional (2D) nanosheet-assembled porous carbon microspheres (N, S-PCS) via simple hydrothermal, carbonization and etching process based on the principle of Schiff base reaction. The N, S-PCS structure is thus constructed by removing Fe7S8 nanoparticles from the carbon skeleton to form porous microspheres with N, S doping. Therefore, the micromorphology characteristic, pore structure and electro-conductivity of carbon materials are effectively optimized via heteroatom doping and surface engineering. As expected, the prepared N, S-PCS electrodes exhibit excellent electrochemical performance in both lithium-ion and sodium-ion batteries. For lithium-ion batteries, it achieves reversible capacities of 1045 and 237 mAh g−1 at 0.1 and 20 A g−1, respectively. For sodium-ion batteries, it shows good cycling stability with a capacity of 157 mAh g−1 after 500 cycles at 1 A g−1. Experimental and theoretical calculation results confirm that the N, S co-doping strategies help to improve the structural stability, shorten the ion diffusion paths, and promote the reaction kinetics, thus achieving excellent electrochemical performance. This work is instructive for the practical application of nonmetal doping functionalized porous carbon structures for metal-ion batteries.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208932","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

Special kinetics features of scandium antimonide thin films conducive to swiftly embedded phase-change memory applications 有利于快速嵌入相变存储器应用的锑化镓钪薄膜的特殊动力学特性

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3086-6

Xue-Peng Wang, Bin Chen, Huang Gong, Xinxin Duan, Yimin Chen, Feng Rao

{"title":"Special kinetics features of scandium antimonide thin films conducive to swiftly embedded phase-change memory applications","authors":"Xue-Peng Wang, Bin Chen, Huang Gong, Xinxin Duan, Yimin Chen, Feng Rao","doi":"10.1007/s40843-024-3086-6","DOIUrl":"https://doi.org/10.1007/s40843-024-3086-6","url":null,"abstract":"Embedded phase-change random-access memory (ePCRAM) applications demand superior data retention in amorphous phase-change materials (PCMs). Traditional PCM design strategies have focused on enhancing the thermal stability of the amorphous phase, often at the expense of the crystallization speed. While this approach supports reliable microchip operations, it compromises the ability to achieve rapid responses. To address this limitation, we modified ultrafast-crystallizing Sb thin films by incorporating Sc dopants, achieving the highest 10-year retention temperature (∼175°C) among binary antimonide PCMs while maintaining a sub-10-ns SET operation speed. This reconciliation of two seemingly contradictory properties arises from the unique kinetic features of the 5-nm-thick Sc12Sb88 films, which exhibit an enlarged fragile-to-strong crossover in viscosity at medium supercooled temperature zones and an incompatible sublattice ordering behavior between the Sc and Sb atoms. By tailoring the crystallization kinetics of PCMs through strategic doping and nanoscale confinement, we provide new opportunities for developing robust yet swift ePCRAMs.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208925","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

Advancements in drugs restructured with nanomedicines for multiple myeloma treatment 用纳米药物重组药物治疗多发性骨髓瘤的进展

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3077-0

Zhaoyun Liu, Hongli Shen, Hui Liu, Kai Ding, Jia Song, Jingtian Zhang, Dan Ding, Rong Fu

引用次数: 0

Optimization of boron-containing acceptors towards high-efficiency TADF emitters: sky-blue OLEDs with external quantum efficiency of 32.6% 优化含硼受体，实现高效 TADF 发射器：外部量子效率达 32.6% 的天蓝色 OLED

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3047-4

Xu Gong, Wei Yang, He Zhang, Weimin Ning, Shaolong Gong, Xiang Gao, Chuluo Yang

{"title":"Optimization of boron-containing acceptors towards high-efficiency TADF emitters: sky-blue OLEDs with external quantum efficiency of 32.6%","authors":"Xu Gong, Wei Yang, He Zhang, Weimin Ning, Shaolong Gong, Xiang Gao, Chuluo Yang","doi":"10.1007/s40843-024-3047-4","DOIUrl":"https://doi.org/10.1007/s40843-024-3047-4","url":null,"abstract":"Two new thermally activated delayed fluorescence (TADF) molecules, 13-(2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracen-7-yl)-5,5-dimethyl-5,13-dihydrobenzo[4,5]thieno[3,2-c]acridine (BOBT) and 13-(4-(dimesitylboranyl)-3,5-dimethylphenyl)-5,5-dimethyl-5,13-dihydrobenzo[4,5]thieno[3,2-c]acridine (BPBT), are constructed via connecting the 5,5-dimethyl-5,13-dihydrobenzo[4,5]thieno[3,2-c]acridine (BTDMAC) donor (D) with triarylboron or oxygen-bridged cyclized boron acceptors (A), respectively. In comparison with the photoluminescence quantum yield (PLQY) of 84% for BPBT, BOBT shows a higher PLQY of 100%, due to the multi-resonance effect of the boron-oxygen skeleton. In addition, the D-A-type molecular structural characteristic endows the boron-containing BOBT emitter with a fast reverse intersystem crossing rate on the order of 106 s−1. The sky-blue organic light-emitting diode (OLED) employing the BOBT emitter achieves state-of-the-art device performances with a high external quantum efficiency of 32.6%.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208920","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

Regulating CsPbI3 crystal growth for efficient printable perovskite solar cells and minimodules 调节 CsPbI3 晶体生长，实现高效的可印刷过氧化物太阳能电池和微型模块

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-09-10 DOI: 10.1007/s40843-024-3046-3

Yuqi Cui, Chengyu Tan, Rui Zhang, Shan Tan, Yiming Li, Huijue Wu, Jiangjian Shi, Yanhong Luo, Dongmei Li, Qingbo Meng

{"title":"Regulating CsPbI3 crystal growth for efficient printable perovskite solar cells and minimodules","authors":"Yuqi Cui, Chengyu Tan, Rui Zhang, Shan Tan, Yiming Li, Huijue Wu, Jiangjian Shi, Yanhong Luo, Dongmei Li, Qingbo Meng","doi":"10.1007/s40843-024-3046-3","DOIUrl":"https://doi.org/10.1007/s40843-024-3046-3","url":null,"abstract":"Large pinhole-free, high-crystal-quality perovskite films are the key to realizing efficient, stable CsPbI3 perovskite modules. In this work, we use the crystal growth modulation strategy to prepare high-quality CsPbI3 films from small to large sizes using a new precursor solution with CsI/DMAPbI3/PbI2 in a DMAAc/DMF mixed solvent (DMAAc: dimethylamine acetate). The champion small-size CsPbI3 device presents a photoelectric conversion efficiency (PCE) above 21% and a certified PCE of 20.05%, and the best blade-coated CsPbI3 minimodule exhibits a PCE of 18.3% for an aperture area of 12.39 cm2 and a PCE of 19.9% for an active area of 11.40 cm2. In addition, the composition engineering of the precursor solution toward CsPbI3 crystallization is explored: the DMAAc/DMF mixed solvent can facilitate phase transformation and reduce the nucleation rate, and the mixture of PbI2 and DMAPbI3 will further improve the film microstructure and uniformity. Consequently, the anti-humidity stability and phase stability of the CsPbI3 films are greatly improved, and the corresponding devices exhibit good operational stability. CsPbI3 modules with simple encapsulation also present excellent long-term storage stability over 150 days. This crystal growth regulation strategy provides a new method to produce large-scale CsPbI3 and even hybrid perovskite solar cells for future commercialization.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208926","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

8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy 通过两步 RTP 退火策略实现 8.2% 效率的水热法 Sb2S3 薄膜太阳能电池

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-08-30 DOI: 10.1007/s40843-024-3055-x

Hui Deng, Xinxin Feng, Qiqiang Zhu, Yonghao Liu, Guidong Wang, Caixia Zhang, Qiao Zheng, Jionghua Wu, Weihuang Wang, Shuying Cheng

{"title":"8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy","authors":"Hui Deng, Xinxin Feng, Qiqiang Zhu, Yonghao Liu, Guidong Wang, Caixia Zhang, Qiao Zheng, Jionghua Wu, Weihuang Wang, Shuying Cheng","doi":"10.1007/s40843-024-3055-x","DOIUrl":"https://doi.org/10.1007/s40843-024-3055-x","url":null,"abstract":"Antimony sulfide (Sb2S3) solar cells fabricated via hydrothermal deposition have attracted widespread attention. The annealing crystallization process plays a crucial role in achieving optimal crystallinity in hydrothermal Sb2S3 thin films. Nevertheless, incomplete crystallization and the loss of sulfur at high-temperature contribute to defect recombination, constraining device performance. Herein, a two-step rapid thermal processing (RTP) annealing strategy is proposed to improve the crystal quality and efficiency of Sb2S3 solar cells. The annealing process in Ar protection with atmospheric pressure can suppress S loss caused by saturated vapor pressure. The two-step RTP annealing with the 330°C low-temperature and 370°C high-temperature process ensures high crystallinity and vertical orientations of Sb2S3 thin films, accompanied by a reduction in defect concentration from 1.01 × 1012 to 5.97 × 1011 cm−3. The Sb2S3 solar cell achieves an efficiency of 8.20% with an enhanced open circuit voltage (VOC) of 784 mV. The build-in voltage (Vbi) of 1.17 V and irradiation-dependent ideal factor (n) of 1.48 demonstrate enhanced heterojunction quality and suppressed defect recombination in the devices. The presented two-step annealing strategy and physical mechanism study will open new prospects for high-performance Sb2S3 solar cells.","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208934","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

Effect of semi-perfluoroalkyl chains on A-DA′D-A type small molecule acceptor in organic solar cells 半全氟化烷基链对有机太阳能电池中 A-DA′D-A 型小分子受体的影响

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-08-30 DOI: 10.1007/s40843-024-3075-2

Wei Liu, Yijie Nai, Weikun Chen, Guanhaojie Zhen, Songting Liang, Xueyi Guo, Jun Yuan, Yingping Zou

引用次数: 0