ACS Publications最新文献_第8页

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2025-07-04

Qixin Yang, Bingrui Yan, Zengkun Wang, Jing Di, Peng Wen, Mengxuan Zhai, Qiongqiong Kan, Xikun Gai* and Yaofeng Zhu*,

引用次数: 0

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2025-07-04

Chi Zhang, Tao Ding, Tangbing Xu, Jun Chang, Yunfeng Wu, Yong Liu, Fei Huang*, Xiaoyan He* and Yong Hu*,

引用次数: 0

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2025-07-04

Xiaoyu Liu, Jiaxing Li, Haiyang Wang, Chenxu Liu, Yaqin Tang, Lijun Zhu, Nuernisha Alifu*, Biao Dong* and Wei Liu*,

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IF 3.3 2区化学

Journal of Organic Chemistry Pub Date : 2025-07-04

Chhavi, Raushan Kumar Jha*, Devendra Parganiha, Sanhati Sharangi and Sangit Kumar*,

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IF 3.3 2区化学

Journal of Organic Chemistry Pub Date : 2025-07-04

Martin Hébert, Gabriel Bellavance and Louis Barriault*,

引用次数: 0

Atomic-Scale Control and In Situ Raman Probing of Hot Carrier Transport in Two-Dimensional Heterojunctions. 二维异质结中热载流子输运的原子尺度控制和原位拉曼探测。

IF 15.8 1区材料科学

ACS Nano Pub Date : 2025-07-04 DOI: 10.1021/acsnano.5c05497

Jing-Liang Yang, Hong-Jia Wang, Xia-Guang Zhang, Gaoxiang Lin, Huijie Liu, Jing-Yu Wang, Jingyi Hu, Yanfeng Zhang, Xiaosi Qi, Weiwei Cai, Ye Yang, Hua Zhang, Jian-Feng Li

{"title":"Atomic-Scale Control and In Situ Raman Probing of Hot Carrier Transport in Two-Dimensional Heterojunctions.","authors":"Jing-Liang Yang, Hong-Jia Wang, Xia-Guang Zhang, Gaoxiang Lin, Huijie Liu, Jing-Yu Wang, Jingyi Hu, Yanfeng Zhang, Xiaosi Qi, Weiwei Cai, Ye Yang, Hua Zhang, Jian-Feng Li","doi":"10.1021/acsnano.5c05497","DOIUrl":"https://doi.org/10.1021/acsnano.5c05497","url":null,"abstract":"Chemical reactions triggered by plasmonic hot carriers attract growing attention due to their high activity and widely adjustable selectivity. However, precise control of hot carrier behaviors and catalytic reactions driven by them on the subnanometer scale remains challenging. Herein, the transportation of plasmonic hot carriers in two-dimensional (2D) van der Waals (vdW) heterojunctions consisting of graphene and MoS2, as well as its influence on photocatalytic reactions, has been in situ monitored by surface-enhanced Raman spectroscopy (SERS) with atomic layer accuracy. Direct spectral results prove that when the MoS2 layer gradually moves closer to the top Au nanoparticles (NPs), the reduction reaction efficiency induced by hot electrons improves, while the oxidation process induced by hot holes is inhibited and vice versa. This originates from the redistribution of electromagnetic fields in the plasmonic nanogap as well as the change in the hot carrier generation and transfer efficiency with different MoS2/graphene vdW heterojunction stacking modes, as revealed by time-resolved transient absorption spectra (TAS), electromagnetic field simulations, and density functional theory (DFT). This work provides valuable insights to deepen the understanding of vdW heterojunction-modulated hot carrier behaviors and reveals the importance of precise photocatalyst design.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":" ","pages":""},"PeriodicalIF":15.8,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Dynamic Cyclodipeptide Clamps as Enantioselective Receptors toward Vitamin K1. 动态环二肽钳作为维生素K1的对映选择性受体。

IF 9.6 1区材料科学

Nano Letters Pub Date : 2025-07-04 DOI: 10.1021/acs.nanolett.5c02793

Zhuoer Wang, Yitong Gai, Aiyou Hao, Pengyao Xing

引用次数: 0

Sustainable Synthesis of Pyrimidines by [NNO]-Pincer-Supported Nickel(II) Complexes via Dehydrogenative Annulation of Alcohols. [NNO]-钳子负载镍（II）配合物脱氢环化合成嘧啶。

IF 3.3 2区化学

Journal of Organic Chemistry Pub Date : 2025-07-04 DOI: 10.1021/acs.joc.5c00821

Pranesh Kavin Sekar, Anandaraj Pennamuthiriyan, Ramesh Rengan

{"title":"Sustainable Synthesis of Pyrimidines by [NNO]-Pincer-Supported Nickel(II) Complexes via Dehydrogenative Annulation of Alcohols.","authors":"Pranesh Kavin Sekar, Anandaraj Pennamuthiriyan, Ramesh Rengan","doi":"10.1021/acs.joc.5c00821","DOIUrl":"https://doi.org/10.1021/acs.joc.5c00821","url":null,"abstract":"An efficient strategy for the multicomponent synthesis of pyrimidine analogues has been demonstrated via acceptorless dehydrogenative annulation (ADA) of alcohols utilizing new Ni(II)-NNO pincer complexes as catalysts. The newly formed Ni(II) complexes (C1-C4) featuring N^N^O chelating hydrazone ligands are well established through analytical and spectral methods (FT-IR and NMR). Single-crystal X-ray diffraction analysis precisely reveals the NNO coordination fashion and square planar geometry around the metal center. The catalytic performance of the complexes is validated through the smooth and efficient synthesis of pyrimidine derivatives from the dehydrogenative coupling of primary alcohols, benzamidines/guanidines/acetamidines, and 1-phenylethanol and delivers the desired products up to 92% with a catalyst loading of 2 mol %. Time-dependent control experiments evidence the formation of probable intermediates such as aldehyde, ketone, and chalcone. The catalytic system displaces a variety of 2,4,6-trisubstituted pyrimidines (27 examples) and H2O and H2 are the sole byproducts. Additionally, a successful gram-scale synthesis highlights the industrial applicability of this catalytic protocol.","PeriodicalId":57,"journal":{"name":"Journal of Organic Chemistry","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D-Printed Polycaprolactone Scaffolds Reinforced with Cellulose Nanocrystals and Silver Nanoparticles for Bone Tissue Engineering. 用于骨组织工程的纤维素纳米晶体和纳米银增强的3d打印聚己内酯支架。

IF 8.3 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-07-04 DOI: 10.1021/acsami.5c06504

Kanga Marius N'Gatta, Edja Florentin Assanvo, Joelle El Hayek, Nathalie Masquelez, Pelagie Kamgang Syapnjeu, Stefano Deabate, Valérie Bonniol, Laurence Soussan, Camilo Zamora-Ledezma, Jeevithan Elango, Valérie Flaud, David Boa, Chrystelle Salameh

{"title":"3D-Printed Polycaprolactone Scaffolds Reinforced with Cellulose Nanocrystals and Silver Nanoparticles for Bone Tissue Engineering.","authors":"Kanga Marius N'Gatta, Edja Florentin Assanvo, Joelle El Hayek, Nathalie Masquelez, Pelagie Kamgang Syapnjeu, Stefano Deabate, Valérie Bonniol, Laurence Soussan, Camilo Zamora-Ledezma, Jeevithan Elango, Valérie Flaud, David Boa, Chrystelle Salameh","doi":"10.1021/acsami.5c06504","DOIUrl":"https://doi.org/10.1021/acsami.5c06504","url":null,"abstract":"Cellulose nanocrystals (CNC) have garnered significant attention in pharmaceutical and medical applications due to their biocompatibility, biodegradability, renewability, and strong surface reactivity. In this study, we designed 3D-printed bioactive composite scaffolds via fused deposition modeling (FDM), incorporating polycaprolactone (PCL), CNC derived from Ficus thonningii bark, and silver nanoparticles (AgNps) synthesized through in situ reduction of silver nitrate AgNO3. Energy-dispersive X-ray spectroscopy (EDX) confirmed AgNps incorporation, while scanning electron microscopy (SEM) revealed a highly porous, interconnected structure. The inclusion of CNC and AgNps enhanced PCL's biodegradability, hydrophilicity, and hydroxyapatite nucleation, all crucial for osteoconductivity. The scaffolds demonstrated mechanical properties suitable for bone regeneration, effective antibacterial activity against Escherichia coli, and cytocompatibility with Mesenchymal Stem Cells (MSCs). These findings highlight the potential of PCL/CNCx/AgNps scaffolds as advanced biomaterials for bone tissue engineering, since they offer enhanced resorbability, antibacterial protection, and structural adaptability.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":" ","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144558350","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

Conformation-Dependent Lesion Bypass and Mutagenicity of Bulky 2-Acetylaminofluorene-Guanine DNA Adduct in Epigenetically Relevant Sequence Contexts. 在表观遗传相关序列背景下，2-乙酰氨基芴-鸟嘌呤DNA加合物的构象依赖性病变旁路和突变性。

IF 3.7 3区医学

Chemical Research in Toxicology Pub Date : 2025-07-04 DOI: 10.1021/acs.chemrestox.5c00055

Yi-Tzai Chen, Rui Qi, Ang Cai, Bongsup P Cho, Deyu Li

{"title":"Conformation-Dependent Lesion Bypass and Mutagenicity of Bulky 2-Acetylaminofluorene-Guanine DNA Adduct in Epigenetically Relevant Sequence Contexts.","authors":"Yi-Tzai Chen, Rui Qi, Ang Cai, Bongsup P Cho, Deyu Li","doi":"10.1021/acs.chemrestox.5c00055","DOIUrl":"https://doi.org/10.1021/acs.chemrestox.5c00055","url":null,"abstract":"DNA base cytosine can be modified epigenetically by adding a methyl group to form 5-methylcytosine (5mC). 5mC in DNA CpG islands plays a crucial role in mammalian cell development and epigenetic regulation. While 5mC does not block DNA replication and is not mutagenic, the biological consequences of 5mC affecting the flanking guanine with a bulky modification during DNA replication are not well understood. This paper examined the lesion bypass and mutagenicity of the 2-acetylaminofluorene-modified guanine DNA adduct (dG-AAF) in epigenetically relevant sequence contexts in Escherichia coli. The C/5mC context exhibited significantly different bypass and mutagenicity profiles for dG-AAF. The biological outcomes also varied depending on the nature of the 3' flanking base and the lesion bulkiness. In addition, we extensively observed a unique type of -1 G deletion when the lesion was flanked by 3' purines, possibly due to the formation of a stacked slipped mutagenic intermediate. However, there was no such deletion with 3' pyrimidines. Our findings provide a new perspective on the role of epigenetic markers in DNA replication and could help to develop methods to identify mutation patterns associated with specific mutational signatures or spectra in cancer.","PeriodicalId":31,"journal":{"name":"Chemical Research in Toxicology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144558425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0