Chinese Chemical Letters最新文献_第2页

Nd@C3N4-photoredox/chlorine dual catalyzed synthesis and evaluation of antitumor activities of 4-alkylated sulfonyl ketimines Nd@C3N4-photoredox/chlorine 双催化合成 4-烷基磺酰基酮亚胺并评估其抗肿瘤活性

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-10-19 DOI: 10.1016/j.cclet.2024.110568

Hong-Tao Ji , Yu-Han Lu , Yan-Ting Liu , Yu-Lin Huang , Jiang-Feng Tian , Feng Liu , Yan-Yan Zeng , Hai-Yan Yang , Yong-Hong Zhang , Wei-Min He

引用次数: 0

Synthetic Cu(III) from copper plating wastewater for onsite decomplexation of Cu(II)- and Ni(II)-organic complexes 从镀铜废水中合成 Cu(III)，用于现场解络合 Cu(II)-和 Ni(II)-有机络合物

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-10-14 DOI: 10.1016/j.cclet.2024.110549

Junyi Yu , Yin Cheng , Anhong Cai , Xianfeng Huang , Qingrui Zhang

{"title":"Synthetic Cu(III) from copper plating wastewater for onsite decomplexation of Cu(II)- and Ni(II)-organic complexes","authors":"Junyi Yu , Yin Cheng , Anhong Cai , Xianfeng Huang , Qingrui Zhang","doi":"10.1016/j.cclet.2024.110549","DOIUrl":"10.1016/j.cclet.2024.110549","url":null,"abstract":"<div><div>Herein, the Cu(III) synthesized from copper plating effluent was developed for the first time to evaluate the onsite degradation performance of heavy metal complexes in the wastewater, thus achieving the purpose of “treating waste with waste”. The results indicated that synthetic Cu(III) presented the excellent decomplexation performance for Cu(II)/Ni(II)-organic complexes. The removal efficiency of Cu(II)/Ni(II)-EDTA significantly increased with increasing Cu(III) dosage, and the degradation of Cu(II)/Ni(II)-EDTA by synthetic Cu(III) system displayed highly pH-dependent reactivity. The radical quencher experiments confirmed that Cu(III) direct oxidation were mainly involved in the degradation of Cu(II)-EDTA. Additionally, the continuous decarboxylation process was proven to be the main degradation pathway of Cu(II)-EDTA in Cu(III) system. The coexisting substances (SO<sub>4</sub><sup>2−</sup>, Cl<sup>−</sup> and fulvic acids) showed little impacts at low level for the removal of Cu(II)/Ni(II)-EDTA, while retarded the degradation of Cu(II)-EDTA slightly at high level, which features high selective oxidation. Encouragingly, it was also effective to remove Cu(II)/Ni(II)-EDTA from in treating actual Cu/Ni-containing wastewater through synthetic Cu(III) treatment.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110549"},"PeriodicalIF":9.4,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

“Super-heterojunctioned” thermoelectric polymers "超级热结 "热电聚合物

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-30 DOI: 10.1016/j.cclet.2024.110523

Hanying Li , Wee-Liat Ong

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Polyvinyl alcohol fiber with enhanced strength and modulus and intense cyan fluorescence based on covalently functionalized graphene quantum dots 基于共价官能化石墨烯量子点的具有更高强度和模量以及更强青色荧光的聚乙烯醇纤维

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-26 DOI: 10.1016/j.cclet.2024.110510

Manman Ou, Yunjian Zhu, Jiahao Liu, Zhaoxuan Liu, Jianjun Wang, Jun Sun, Chuanxiang Qin, Lixing Dai

{"title":"Polyvinyl alcohol fiber with enhanced strength and modulus and intense cyan fluorescence based on covalently functionalized graphene quantum dots","authors":"Manman Ou, Yunjian Zhu, Jiahao Liu, Zhaoxuan Liu, Jianjun Wang, Jun Sun, Chuanxiang Qin, Lixing Dai","doi":"10.1016/j.cclet.2024.110510","DOIUrl":"10.1016/j.cclet.2024.110510","url":null,"abstract":"<div><div>In this study, we proposed a novel and efficient way to strengthen polyvinyl alcohol (PVA) fiber using graphene quantum dots (GQDs). PVA molecular chains were grafted onto the surface of GQDs through Friedel-Crafts alkylation reaction to obtain functionalized GQDs (f-GQDs), and PVA/f-GQDs composite fiber was successfully prepared by wet spinning and post-treatment. The tensile strength and Young's modulus of the composite fiber reached up to 1229.24 MPa and 35.36 GPa which were approximately twice and 4 times those of the pure PVA fiber, respectively. Moreover, the composite fiber was demonstrated excellent resistance to solvents. In addition, the PVA/f-GQDs composite fiber showed intense and uniform cyan fluorescence, meanwhile, it could maintain stable solid-state fluorescence in acid and alkali solutions and particularly after long-term immersion in water (1 month). This study proposes a promising route for obtaining high-performance conventional fibers with some new functions.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110510"},"PeriodicalIF":9.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Oxygen vacancies-rich molybdenum tungsten oxide nanowires as a highly active nitrogen fixation electrocatalyst 富氧空位钼钨氧化物纳米线作为高活性固氮电催化剂

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-26 DOI: 10.1016/j.cclet.2024.110491

Jincheng Zhang , Mengjie Sun , Jiali Ren , Rui Zhang, Min Ma, Qingzhong Xue, Jian Tian

{"title":"Oxygen vacancies-rich molybdenum tungsten oxide nanowires as a highly active nitrogen fixation electrocatalyst","authors":"Jincheng Zhang , Mengjie Sun , Jiali Ren , Rui Zhang, Min Ma, Qingzhong Xue, Jian Tian","doi":"10.1016/j.cclet.2024.110491","DOIUrl":"10.1016/j.cclet.2024.110491","url":null,"abstract":"<div><div>Herein, vacancy engineering is utilized reasonably to explore molybdenum tungsten oxide nanowires (W<sub>4</sub>MoO<sub>3</sub> NWs) rich in O-vacancies as an advanced electrochemical nitrogen reduction reaction (eNRR) electrocatalyst, realizing further enhancement of NRR performance. In 0.1 mol/L Na<sub>2</sub>SO<sub>4</sub>, W<sub>4</sub>MoO<sub>3</sub> NWs rich in O vacancies (CTAB-D-W<sub>4</sub>MoO<sub>3</sub>) achieve a large NH<sub>3</sub> yield of 60.77 µg h<sup>-1</sup> mg<sup>-1</sup><sub>cat.</sub> at -0.70 V <em>vs.</em> RHE and a high faradaic efficiency of 56.42 % at -0.60 V, much superior to the W<sub>4</sub>MoO<sub>3</sub> NWs deficient in oxygen vacancies (20.26 µg h<sup>-1</sup> mg<sup>-1</sup><sub>cat.</sub> and 17.1 % at -0.70 V <em>vs.</em> RHE). Meanwhile, W<sub>4</sub>MoO<sub>3</sub> NWs rich in O-vacancies also show high electrochemical stability. Density functional theory (DFT) calculations present that O vacancies in CTAB-D-W<sub>4</sub>MoO<sub>3</sub> reduce the energy barrier formed by the intermediate of *N-NH, facilitate the activation and further hydrogenation of *N-N, promote the NRR process, and improve NRR activity.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 1","pages":"Article 110491"},"PeriodicalIF":9.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Engineered iron-based metal-organic frameworks nanoplatforms for cancer theranostics: A mini review 用于癌症治疗的铁基金属有机框架纳米平台：微型综述

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-25 DOI: 10.1016/j.cclet.2024.110501

Yunlong Li , Xinyu Zhang , Shuang Liu , Chunsheng Li , Qiang Wang , Jin Ye , Yong Lu , Jiating Xu

{"title":"Engineered iron-based metal-organic frameworks nanoplatforms for cancer theranostics: A mini review","authors":"Yunlong Li , Xinyu Zhang , Shuang Liu , Chunsheng Li , Qiang Wang , Jin Ye , Yong Lu , Jiating Xu","doi":"10.1016/j.cclet.2024.110501","DOIUrl":"10.1016/j.cclet.2024.110501","url":null,"abstract":"<div><div>Up to now, numerous emerging methods of cancer treatment including chemodynamic therapy, photothermal therapy, photodynamic therapy, sonodynamic therapy, immunotherapy and chemotherapy have rapidly entered a new stage of development. However, the single treatment mode is often constrained by the complex tumor microenvironment. Recently, the nanomaterials and nanomedicine have emerged as promising avenues to overcome the limitation in cancer theranostics. Especially, metal-organic frameworks (MOFs) have gained considerable interests in cancer therapy because of their customizable morphologies, easy functionalization, large specific surface area, and good biocompatibility. Among these MOFs, iron-based MOFs (Fe-MOFs) are particularly promising for cancer treatment due to their properties as nano-photosensitizers, peroxidase-like activity, bioimaging contrast capabilities, and biodegradability. Utilizing their structural regularity and synthetic tunability, Fe-MOFs can be engineered to incorporate organic molecules or other inorganic nanoparticles, thereby creating multifunctional nanoplatforms for single or combined theranostic modes. Herein, the minireview focuses on the recent advancements of the Fe-MOFs-based nanoplatforms for self-enhanced imaging and treatment at tumor sites. Furthermore, the clinical research development of Fe-MOFs-based nanoplatforms is discussed, addressing key challenges and innovations for the future. Our review aims to provide novice researchers with a foundational understanding of advanced cancer theranostic modes and promote their clinical applications through the modification of Fe-MOFs.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110501"},"PeriodicalIF":9.4,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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High quantum yield yellow emission carbon dots for the construction of blue light blocking films 用于构建蓝光阻挡薄膜的高量子产率黄色发射碳点

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-24 DOI: 10.1016/j.cclet.2024.110497

Liwen Wang , Boyang Wang , Siyu Lu , Shubo Lv , Xiaoli Qu

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Recent advances in semi-heterogenous photocatalysis in organic synthesis 有机合成中半同源光催化技术的最新进展

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-18 DOI: 10.1016/j.cclet.2024.110469

Jia-Cheng Hou , Wei Cai , Hong-Tao Ji , Li-Juan Ou , Wei-Min He

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Corrigendum to ‘Fluorescence immunoassay based on alkaline phosphatase-induced in situ generation of fluorescent non-conjugated polymer dots’ [Chinese Chemical Letters 34 (2023) 107672] 基于碱性磷酸酶诱导原位生成荧光非共轭聚合物点的荧光免疫测定"[中国化学快报 34 (2023) 107672]勘误表

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-17 DOI: 10.1016/j.cclet.2024.109881

Donghui Wu , Qilin Zhao , Jian Sun , Xiurong Yang

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Swelling and erosion assisted sustained release of tea polyphenol from antibacterial ultrahigh molecular weight polyethylene for joint replacement 抗菌超高分子量聚乙烯中茶多酚的膨胀和侵蚀辅助持续释放，用于关节置换术

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-15 DOI: 10.1016/j.cclet.2024.110468

Yue Ren , Kang Li , Yi-Zi Wang , Shao-Peng Zhao , Shu-Min Pan , Haojie Fu , Mengfan Jing , Yaming Wang , Fengyuan Yang , Chuntai Liu

{"title":"Swelling and erosion assisted sustained release of tea polyphenol from antibacterial ultrahigh molecular weight polyethylene for joint replacement","authors":"Yue Ren , Kang Li , Yi-Zi Wang , Shao-Peng Zhao , Shu-Min Pan , Haojie Fu , Mengfan Jing , Yaming Wang , Fengyuan Yang , Chuntai Liu","doi":"10.1016/j.cclet.2024.110468","DOIUrl":"10.1016/j.cclet.2024.110468","url":null,"abstract":"<div><div>The considerable hazard posed by periprosthetic joint infections underlines the urgent need for the rapid advancement of <em>in-situ</em> drug delivery systems within joint materials. However, the pursuit of sustained antibacterial efficacy remains a formidable challenge. In this context, we proposed a novel strategy that leverages swelling and erosion mechanisms to facilitate drug release of drug-loaded ultrahigh molecular weight polyethylene (UHMWPE), thereby ensuring its long-lasting antibacterial performance. Polyethylene oxide (PEO), a hydrophilic polymer with fast hydrating ability and high swelling capacity, was incorporated in UHMWPE alongside the antibacterial tea polyphenol (epigallocatechin gallate, EGCG as representative). The swelling of PEO enhanced water infiltration into the matrix, while the erosion of PEO balanced the release of the encapsulated EGCG, resulting in a steady release. The behavior was supported by the EGCG release profiles and the corresponding fitted release kinetic models. As demonstrated by segmented antibacterial assessments, the antibacterial efficiency was enhanced 2 to 3 times in the PEO/EGCG/UHMWPE composite compared to that of EGCG/UHMWPE. Additionally, the PEO/EGCG/UHMWPE composite exhibited favorable biocompatibility and mechanical performance, making it a potential candidate for the development of drug-releasing joint implants to combat prosthetic bacterial infections.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110468"},"PeriodicalIF":9.4,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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