Science Bulletin最新文献_第9页

Strong support effect induced by MXene for the synthesis of metal sulfides nanosheet arrays with sulfur vacancies towards selective CO2-to-CO photoreduction 利用 MXene 诱导的强支撑效应合成含硫空位的金属硫化物纳米片阵列，实现 CO2 到 CO 的选择性光电还原

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.07.039

Guanshun Xie , Le Liao , Jie Wang , Peng Zhang , Benhua Xu , Xiuqiang Xie , Chi Chen , Babak Anasori , Nan Zhang

{"title":"Strong support effect induced by MXene for the synthesis of metal sulfides nanosheet arrays with sulfur vacancies towards selective CO2-to-CO photoreduction","authors":"Guanshun Xie , Le Liao , Jie Wang , Peng Zhang , Benhua Xu , Xiuqiang Xie , Chi Chen , Babak Anasori , Nan Zhang","doi":"10.1016/j.scib.2024.07.039","DOIUrl":"10.1016/j.scib.2024.07.039","url":null,"abstract":"<div><div>Selective CO2-to-CO photoreduction is under intensive research and requires photocatalysts with tuned microstructures to accelerate the reaction kinetics. Here, we report CuInS2 nanosheet arrays with sulfur vacancies (VS) grown on the two-dimensional (2D) support of Ti3C2Tx MXene for CO2-to-CO photoreduction. Our results reveal that the use of Ti3C2Tx induces strong support effect, which causes the hierarchical nanosheet arrays growth of CuInS2 and simultaneously leads to charge transfer from CuInS2 to Ti3C2Tx support, resulting in VS formed in CuInS2. The strong support effect based on Ti3C2Tx is proven to be applicable to prepare a series of different metal indium sulfide arrays with VS. CuInS2 nanosheet arrays with VS supported on Ti3C2Tx benefit the photocatalytic selective reduction of CO2 to CO, manifesting a remarkable over 14.8-fold activity enhancement compared with pure CuInS2. The experimental and computational investigations pinpoint that VS of CuInS2 resulting from the support effect of Ti3C2Tx lowers the barrier of the rate-limiting step of *COOH → *OH + *CO, which is the key to the photoactivity enhancement. This work demonstrates MXene support effects and offers an effective approach to regulate the atomic microstructure of metal sulfides toward enhancing photocatalytic performance.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"69 20","pages":"Pages 3247-3259"},"PeriodicalIF":18.8,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141842208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TaSRT2 recognizes a viral protein to activate host immunity by increasing histone acetylation TaSRT2 可识别病毒蛋白，通过增加组蛋白乙酰化激活宿主免疫。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.04.064

引用次数: 0

Boosted room-temperature nonlinear Hall effect in sputtered films 溅射薄膜中增强的室温非线性霍尔效应

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.031

Zhanqi Zhang , Hai-Peng Sun , Xiaofei Xiao , Haoliang Liu , Mingyu Zhang

引用次数: 0

“Cap and glycosylate” strategy for direct radical functionalization of native sugars 对原生糖进行直接自由基功能化的 "盖帽和糖基化 "策略。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-30 DOI: 10.1016/j.scib.2024.08.009

Hiroaki Matoba, Go Hirai

引用次数: 0

Cardiovascular 1.5-level prevention: A comprehensive screening and intervention for early cardiovascular organ damage. 心血管 1.5 级预防：针对早期心血管器官损伤的全面筛查和干预。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-28 DOI: 10.1016/j.scib.2024.10.030

Yi Zhang, Jiawen Wu, Yanfei Liu, Yue Liu

引用次数: 0

Deep purification of perfluorinated electronic specialty gas with a scalable metal-organic framework featuring tailored positive potential traps. 利用具有定制正电位陷阱的可扩展金属有机框架深度净化全氟电子特种气体。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-28 DOI: 10.1016/j.scib.2024.10.031

Wei Xia, Zhijie Zhou, Liangzheng Sheng, Lihang Chen, Fang Zheng, Zhiguo Zhang, Qiwei Yang, Qilong Ren, Zongbi Bao

{"title":"Deep purification of perfluorinated electronic specialty gas with a scalable metal-organic framework featuring tailored positive potential traps.","authors":"Wei Xia, Zhijie Zhou, Liangzheng Sheng, Lihang Chen, Fang Zheng, Zhiguo Zhang, Qiwei Yang, Qilong Ren, Zongbi Bao","doi":"10.1016/j.scib.2024.10.031","DOIUrl":"https://doi.org/10.1016/j.scib.2024.10.031","url":null,"abstract":"The sequestration of trace hexafluoropropylene (C3F6) is a critical yet formidable task in the production of high-purity perfluoropropane (C3F8), an important perfluorinated electronic specialty gas (F-gas) in the advanced electronics industry. Traditional adsorbents struggle with uneven, low-pressure uptake and compromises in selectivity. This work utilizes aperture size-electrostatic potential matching within a robust metal-organic framework (Al-PMA) to facilitate selective, reversible binding of C3F6 while excluding larger C3F8 molecules. The presence of bridging hydroxyl groups (μ2-OH) in Al-PMA creates positive electrostatic potential traps that securely anchor C3F6 through strong hydrogen bonding, evidenced by in-situ infrared and 19F magic angle spinning nuclear magnetic resonance spectroscopy. Breakthrough experiments demonstrate the efficient removal of trace C3F6 from C3F8 under ambient conditions, achieving C3F8 purity exceeding 99.999%. The scalability of Al-PMA synthesis, remarkable stability, and exceptional performance highlight its potential as a promising adsorbent for industrial C3F6/C3F8 separations.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Record-high heat transfer performance of spray cooling on 3D-printed hierarchical micro/nano-structured surface. 三维打印分层微/纳米结构表面的喷雾冷却传热性能创历史新高。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-24 DOI: 10.1016/j.scib.2024.10.028

Yongyan Hu, Yifan Lei, Xiuliang Liu, Ronggui Yang

{"title":"Record-high heat transfer performance of spray cooling on 3D-printed hierarchical micro/nano-structured surface.","authors":"Yongyan Hu, Yifan Lei, Xiuliang Liu, Ronggui Yang","doi":"10.1016/j.scib.2024.10.028","DOIUrl":"https://doi.org/10.1016/j.scib.2024.10.028","url":null,"abstract":"Managing high-flux waste heat with controllable device working temperature is becoming challenging and critical for the artificial intelligence, communications, electric vehicles, defense and aerospace sectors. Spray cooling, which combines forced convection with phase-change latent heat of working fluids, is promising for high flux heat dissipation. Most of the previous studies on spray cooling enhancement adopted high spray flow rates to strengthen forced convection for high critical heat flux (CHF), leading to a low heat transfer coefficient (HTC). Micro/nanostructured surfaces can enhance boiling, but bubbles inside the structures tend to form a vapor blanket, which can deteriorate heat transfer. This work demonstrates simultaneous enhancement of CHF and HTC in spray cooling by improving both evaporation and liquid film boiling on three-dimensional (3D) ordered hierarchical micro/nano-structured surface. The hierarchical micro/nano-structured surface is designed to coordinate the transport of spray droplets, capillary liquid films, and boiling bubbles to enhance spray cooling performance. Boiling inversion where superheat decreases with increasing heat flux is observed, leading to an ultra-high HTC due to the simultaneous promotion of bubble nucleation and evaporation. Unprecedented CHF is obtained by overcoming the liquid-vapor counterflow, i.e., synergistically facilitating bubble escape and liquid permeation. A record-breaking heat transfer performance of spray cooling is achieved with a maximum heat flux of 1273 W/cm2 and an HTC of 443.7 kW/(m2 K) over a 1 cm2 heating area.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biologically controllable adhesion interfaces. 生物可控粘附界面。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-24 DOI: 10.1016/j.scib.2024.10.029

Hui Yuan, Juan Wang, Wenguo Cui

引用次数: 0

Metabolic reprogramming landscape of pan-cancer by single-cell transcriptome data integration. 通过单细胞转录组数据整合绘制泛癌症的代谢重编程图谱

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-24 DOI: 10.1016/j.scib.2024.10.026

Yunfei Shang, Jingyao Zeng, Jialin Mai, Jingfa Xiao

引用次数: 0

Targeting modulation of intestinal flora through oral route by an antimicrobial nucleic acid-loaded exosome-like nanovesicles to improve Parkinson's disease. 抗菌核酸负载外泌体纳米颗粒通过口服途径靶向调节肠道菌群，改善帕金森病。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-10-24 DOI: 10.1016/j.scib.2024.10.027

Weitong Cui, Zhiyong Guo, Xingyu Chen, Ran Yan, Wenjuan Ma, Xiao Yang, Yunfeng Lin

{"title":"Targeting modulation of intestinal flora through oral route by an antimicrobial nucleic acid-loaded exosome-like nanovesicles to improve Parkinson's disease.","authors":"Weitong Cui, Zhiyong Guo, Xingyu Chen, Ran Yan, Wenjuan Ma, Xiao Yang, Yunfeng Lin","doi":"10.1016/j.scib.2024.10.027","DOIUrl":"https://doi.org/10.1016/j.scib.2024.10.027","url":null,"abstract":"Parkinson's disease (PD) is one of the most prevalent neurodegenerative diseases. It is usually accompanied by motor and non-motor symptoms that seriously threaten the health and the quality of life. Novel medications are urgently needed because current pharmaceuticals can relieve symptoms but cannot stop disease progression. The microbiota-gut-brain axis (MGBA) is closely associated with the occurrence and development of PD and is an effective therapeutic target. Tetrahedral framework nucleic acids (tFNAs) can modulate the microbiome and immune regulation. However, such nucleic acid nanostructures are very sensitive to acids which hinder this promising approach. Therefore, we prepared exosome-like nanovesicles (Exo@tac) from ginger that are acid resistant and equipped with tFNAs modified by antimicrobial peptides (AMP). We verified that Exo@tac regulates intestinal bacteria associated with the microbial-gut-brain axis in vitro and significantly improves PD symptoms in vivo when administered orally. Microbiota profiling confirmed that Exo@tac normalizes the intestinal flora composition of mouse models of PD. Our findings present a novel strategy for the development of PD drugs and the innovative delivery of nucleic acid nanomedicines.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0