The Royal Society of Chemistry最新文献_第3页

Co-assembly of cellulose nanocrystals and gold nanorods: insights from molecular dynamics modelling. 纤维素纳米晶体与金纳米棒的共组装：分子动力学建模的启示。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-11-27 DOI: 10.1039/d4sm00871e

Jiaxin Hou, William Sampson, Ahu Gümrah Dumanli

引用次数: 0

A mitochondria-targeted colorimetric and NIR ratiometric fluorescent probe for biothiols with large Stokes shift based on thiol-chromene click reaction. 一种基于硫醇-色素点击反应的线粒体靶向比色和近红外比色荧光探针，用于检测具有较大斯托克斯位移的生物硫醇。

IF 2.9 3区化学

Organic & Biomolecular Chemistry Pub Date : 2024-11-27 DOI: 10.1039/d4ob01324g

Dongjian Zhu, Aishan Ren, Lin Xue

{"title":"A mitochondria-targeted colorimetric and NIR ratiometric fluorescent probe for biothiols with large Stokes shift based on thiol-chromene click reaction.","authors":"Dongjian Zhu, Aishan Ren, Lin Xue","doi":"10.1039/d4ob01324g","DOIUrl":"10.1039/d4ob01324g","url":null,"abstract":"In this study, a carbazole-based mitochondria-targeted colorimetric and NIR ratiometric fluorescent probe 1 for biothiols based on the thiol-chromene click reaction was subtly designed and synthesized. Upon interaction with biothiols (Cys, Hcy and GSH), the absorption of 1 shifted from 496 nm to 388 nm, while its fluorescence spectrum shifted from 650 nm to 530 nm. These transformations were accompanied by a visible color change from pink to colorless under visible light and from red to green when observed under a 365 nm UV lamp, which can be attributed to the click reaction of biothiols with the α,β-unsaturated ketone of the chromene moiety, subsequent pyran ring-opening and phenol formation as well as 1,6-elimination of a p-hydroxybenzyl moiety yielding 2. These advancements in 1 have allowed us to ratiometrically detect biothiols with high sensitivity (LODs of 97 nM, 94 nM and 93 nM for Cys, GSH and Hcy, respectively), a large Stokes shift (154 nm) and excellent selectivity. In addition, 1 can target mitochondria and image the fluctuation of intracellular biothiols through fluorescence ratiometry. Furthermore, the novel design strategy of modifying chromene to the N atom of quinoline was proposed for the first time.","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":"9113-9120"},"PeriodicalIF":2.9,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142491283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Recent progress in gold-derived nanomaterials for tumor theranostics. 用于肿瘤治疗的金纳米材料的最新进展。

IF 2.7 3区化学

Analytical Methods Pub Date : 2024-11-27 DOI: 10.1039/d4ay01932f

Xi Deng, Lei Hu, Hui Xing, Yun Liu, Hong Yin

{"title":"Recent progress in gold-derived nanomaterials for tumor theranostics.","authors":"Xi Deng, Lei Hu, Hui Xing, Yun Liu, Hong Yin","doi":"10.1039/d4ay01932f","DOIUrl":"https://doi.org/10.1039/d4ay01932f","url":null,"abstract":"It is widely acknowledged that gold-based materials are of significant interest in the field of biomedicine. Consequently, considerable efforts have been devoted to identifying gold nanoparticles that exhibit effective performance in tumor diagnosis and treatment. However, the underlying reasons for the enhanced efficacy of these gold-based nanomaterials in cancer therapy and diagnosis remain unclear, primarily due to the lack of an in-depth understanding of the mechanisms involved. Therefore, it is essential to summarize the progress in the field to facilitate the rational design of more efficient nanodevices. In this review, we present recent achievements drawn from the latest research to demonstrate the broad applications of gold-based materials. We begin by illustrating the mechanisms of gold-derived nanoparticles during therapeutic and diagnostic processes, including photothermal therapy, photodynamic therapy, sonodynamic therapy, photoacoustic tomography, fluorescence imaging, and X-ray computed tomography. We then summarize the advancements of gold-based nanomaterials in cancer diagnosis and treatment while also analyzing the factors contributing to their enhanced performance. Finally, we highlight key descriptors for evaluating the efficacy and strategies for designing high-performance nanomaterials. This review aims to pave the way for addressing future challenges and outlines directions for the advancement of gold-based biomedicine.","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Electroreforming of plastic wastes for value-added products. 对塑料废料进行电改性以生产增值产品。

IF 4.3 2区化学

Chemical Communications Pub Date : 2024-11-27 DOI: 10.1039/d4cc04574b

Ying Li, Lang Liu, Li Quan Lee, Hong Li

{"title":"Electroreforming of plastic wastes for value-added products.","authors":"Ying Li, Lang Liu, Li Quan Lee, Hong Li","doi":"10.1039/d4cc04574b","DOIUrl":"https://doi.org/10.1039/d4cc04574b","url":null,"abstract":"The problem of plastic pollution is becoming increasingly serious, and there is an urgent need to reduce the use of plastics and to improve the recovery rate of plastic wastes. Plastic wastes can be transformed into value-added chemicals at the anode through electrocatalytic conversion, while coupling with cathodic reduction reactions to achieve cogeneration of valuable anodic and cathodic products. The plastic electroreforming technology has unprecedented advantages, including a green and decentralizable process, renewable energy storage, ecological benefits, resource recovery, cost-effectiveness, and so on. Herein, we present a mini review about recent advances in this topic. We first discuss the electrooxidation mechanisms of different plastic wastes (such as polylactic acid, polyethylene glycol terephthalate, polyethylene, polyethylene furanoate, polybutylene terephthalate, and polyamides). Then, the progress of plastic waste-assisted electrolysis systems is summarized, including plastic waste-assisted water splitting for hydrogen production and oxygen reduction, as well as plastic electroreforming coupled with CO2 reduction, and the nitrate reduction reaction. Finally, the development prospects and challenges in this field are introduced and discussed. This review aims to provide a concise overview of the emerging plastic electroreforming, thus offering insight on the design of efficient and stable plastic-assisted electrolysis systems.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724293","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

Coordination complexes of P^III-doped heterobuckybowls and their applications in catalysis. 掺杂 PIII 的异巴基络合物及其在催化中的应用。

IF 2.9 3区化学

Organic & Biomolecular Chemistry Pub Date : 2024-11-27 DOI: 10.1039/d4ob01737d

Lijun Feng, Xinqiang Hua, Jihai Shang, Xiangfeng Shao

引用次数: 0

Rhodium(III)-catalyzed direct C-H activation of 2-aryl-3H-indoles: a strategy for 4-heteroaryl pyrazole synthesis. 铑（III）催化的 2-芳基-3H-吲哚的直接 C-H 活化：4-庚芳基吡唑的合成策略。

IF 2.9 3区化学

Organic & Biomolecular Chemistry Pub Date : 2024-11-27 DOI: 10.1039/d4ob01655f

Zi Yang, Ji Luo, Wenbo Zhang, Jieni Lei, Chaoshui Liu, Yaqian Li

引用次数: 0

An alternate synthetic pathway to nanoscopic Li₂FeS₂ for energy storage. 用于储能的纳米级 Li2FeS2 的另一种合成途径。

IF 4.3 2区化学

Chemical Communications Pub Date : 2024-11-27 DOI: 10.1039/d4cc04748f

Ryan H DeBlock, Hunter O Ford, Meghanne E Tighe, Debra R Rolison, Jeffrey W Long

引用次数: 0

Reversible encapsulation and release of fullerenes using calix[n]phenoxazines. 使用钙[n]吩噁嗪对富勒烯进行可逆封装和释放。

IF 2.9 3区化学

Organic & Biomolecular Chemistry Pub Date : 2024-11-27 DOI: 10.1039/d4ob01569j

Lu Wang, Yunxiao Li, Xin Qu, Da Ma, M Zubair Iqbal, Xiangdong Kong, Lijun Mao

引用次数: 0

CO₂-induced drastic decharging of dielectric surfaces in aqueous suspensions. 二氧化碳诱导水悬浮液中介质表面急剧放电。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-11-27 DOI: 10.1039/d4sm00957f

Peter Vogel, David Beyer, Christian Holm, Thomas Palberg

{"title":"CO2-induced drastic decharging of dielectric surfaces in aqueous suspensions.","authors":"Peter Vogel, David Beyer, Christian Holm, Thomas Palberg","doi":"10.1039/d4sm00957f","DOIUrl":"10.1039/d4sm00957f","url":null,"abstract":"We study the influence of airborne CO2 on the charge state of carboxylate stabilized polymer latex particles suspended in aqueous electrolytes. We combine conductometric experiments interpreted in terms of Hessinger's conductivity model with Poisson-Boltzmann cell (PBC) model calculations with charge regulation boundary conditions. Without CO2, a minority of the weakly acidic surface groups are dissociated and only a fraction of the total number of counter-ions actually contribute to conductivity. The remaining counter-ions exchange freely with added other ions like Na+, K+ or Cs+. From the PBC-calculations we infer a corresponding pKa of 4.26 as well as a renormalized charge in reasonably good agreement with the number of freely mobile counter-ions. Equilibration of salt- and CO2-free suspensions against ambient air leads to a drastic de-charging, which exceeds by far the expected effects of to dissolved CO2 and its dissociation products. Further, no counter-ion-exchange is observed. To reproduce the experimental findings, we have to assume an effective pKa of 6.48. This direct influence of CO2 on the state of surface group dissociation explains our recent finding of a CO2-induced decrease of the ζ-potential and supports the suggestion of an additional charge regulation caused by molecular CO2. Given the importance of charged surfaces in contact with aqueous electrolytes, we anticipate that our observations bear substantial theoretical challenges and important implications for applications ranging from desalination to bio-membranes.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":"9261-9272"},"PeriodicalIF":2.9,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142612841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Palladium-catalyzed cascade cyclization of α,β-unsaturated N-tosylhydrazones with iodoarenes: access to 2H-chromenes and 2H-quinolines. 钯催化的α、β-不饱和 N-对甲苯磺酰肼与碘醛的级联环化反应：获得 2H-苯并吡喃和 2H-喹啉。

IF 2.9 3区化学

Organic & Biomolecular Chemistry Pub Date : 2024-11-27 DOI: 10.1039/d4ob01300j

Yiyi Zheng, Xi-Wei Zhu, Yi-Yun Pan, Fei Sun, Long Yao, Xin-Xing Wu

引用次数: 0