Pub Date : 2024-06-22DOI: 10.1016/j.cclet.2024.110169
Qinghong Pan , Huafang Zhang , Qiaoling Liu , Donghong Huang , Da-Peng Yang , Tianjia Jiang , Shuyang Sun , Xiangrong Chen
Quantitative determination of tetracycline (TC) in environment and foods is of great importance, as excessive residues might have negative effects on human health and environmental risks. Herein, a self-powered molecularly imprinted photoelectrochemical (PEC) sensor based on the ZnO/C photoanode and the Fe-doped CuBi2O4 (CBFO) photocathode is developed for the sensitive detection of TC. The photocathodic current can be amplified by the efficient electron transfer caused by the Fermi energy level gap between the photoanode and photocathode. Furthermore, molecularly imprinted polymers (MIPs) at photocathode can selectivity identify the TC templates and thus improve the specificity. Under the optimal conditions, the sensor has a linear range of 10‒2–1.0 × 105 nmol/L, and a limit of detection (LOD) of 0.007 nmol/L (S/N = 3). More crucially, the milk sample detection is carried out using the as-prepared sensor, and the outcome is satisfactory. The research gives us a novel sensing platform for quick and accurate antibiotic (like TC) in environment and food monitoring.
{"title":"A self-powered cathodic molecular imprinting ultrasensitive photoelectrochemical tetracycline sensor via ZnO/C photoanode signal amplification","authors":"Qinghong Pan , Huafang Zhang , Qiaoling Liu , Donghong Huang , Da-Peng Yang , Tianjia Jiang , Shuyang Sun , Xiangrong Chen","doi":"10.1016/j.cclet.2024.110169","DOIUrl":"10.1016/j.cclet.2024.110169","url":null,"abstract":"<div><div>Quantitative determination of tetracycline (TC) in environment and foods is of great importance, as excessive residues might have negative effects on human health and environmental risks. Herein, a self-powered molecularly imprinted photoelectrochemical (PEC) sensor based on the ZnO/C photoanode and the Fe-doped CuBi<sub>2</sub>O<sub>4</sub> (CBFO) photocathode is developed for the sensitive detection of TC. The photocathodic current can be amplified by the efficient electron transfer caused by the Fermi energy level gap between the photoanode and photocathode. Furthermore, molecularly imprinted polymers (MIPs) at photocathode can selectivity identify the TC templates and thus improve the specificity. Under the optimal conditions, the sensor has a linear range of 10<sup>‒2</sup>–1.0 × 10<sup>5</sup> nmol/L, and a limit of detection (LOD) of 0.007 nmol/L (S/N = 3). More crucially, the milk sample detection is carried out using the as-prepared sensor, and the outcome is satisfactory. The research gives us a novel sensing platform for quick and accurate antibiotic (like TC) in environment and food monitoring.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 1","pages":"Article 110169"},"PeriodicalIF":9.4,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592840","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}
Pub Date : 2024-06-22DOI: 10.1016/j.cclet.2024.110167
Qinghong Zhang , Qiao Zhao , Xiaodi Wu , Li Wang , Kairui Shen , Yuchen Hua , Cheng Gao , Yu Zhang , Mei Peng , Kai Zhao
Pyridyl-based ketones and 1,6-diketones are both attractive and invaluable scaffolds which play pivotal roles in the construction and structural modification of a plethora of synthetically paramount natural products, pharmaceuticals, organic materials and fine chemicals. In this context, we herein demonstrate an unprecedented, robust and generally applicable synthetically strategy to deliver these two crucial ketone frameworks via visible-light-induced ring-opening coupling reactions of cycloalcohols with vinylazaarenes and enones, respectively. A plausible mechanism involves the selective β-C-C bond cleavage of cycloalcohols enabled by proton-coupled electron transfer and ensuing Giese-type addition followed by single electron reduction and protonation. The synthetic methodology exhibits broad substrate scope, excellent functional group compatibility as well as operational simplicity and environmental friendliness.
{"title":"Visible-light-induced ring-opening cross-coupling of cycloalcohols with vinylazaarenes and enones via β-C-C scission enabled by proton-coupled electron transfer","authors":"Qinghong Zhang , Qiao Zhao , Xiaodi Wu , Li Wang , Kairui Shen , Yuchen Hua , Cheng Gao , Yu Zhang , Mei Peng , Kai Zhao","doi":"10.1016/j.cclet.2024.110167","DOIUrl":"10.1016/j.cclet.2024.110167","url":null,"abstract":"<div><div>Pyridyl-based ketones and 1,6-diketones are both attractive and invaluable scaffolds which play pivotal roles in the construction and structural modification of a plethora of synthetically paramount natural products, pharmaceuticals, organic materials and fine chemicals. In this context, we herein demonstrate an unprecedented, robust and generally applicable synthetically strategy to deliver these two crucial ketone frameworks <em>via</em> visible-light-induced ring-opening coupling reactions of cycloalcohols with vinylazaarenes and enones, respectively. A plausible mechanism involves the selective <em>β</em>-C-C bond cleavage of cycloalcohols enabled by proton-coupled electron transfer and ensuing Giese-type addition followed by single electron reduction and protonation. The synthetic methodology exhibits broad substrate scope, excellent functional group compatibility as well as operational simplicity and environmental friendliness.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110167"},"PeriodicalIF":9.4,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657005","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}
Pub Date : 2024-06-21DOI: 10.1016/j.cclet.2024.110149
Yu Xiong, Li-Jun Hu, Jian-Guo Song, Di Zhang, Yi-Shuang Peng, Xiao-Jun Huang, Jian Hong, Bin Zhu, Wen-Cai Ye, Ying Wang
[2+2]-Type cyclobutane derivatives comprise a large family of natural products with diverse molecular architectures. However, the structure elucidation of the cyclobutane ring, including its connection mode and stereochemistry, presents a significant challenge. Plumerubradins A–C (–), three novel iridoid glycoside [2+2] dimers featuring a highly functionalized cyclobutane core and multiple stereogenic centers, were isolated from the flowers of Plumeria rubra. Through biomimetic semisynthesis and chemical degradation of compounds –, synthesis of phenylpropanoid-derived [2+2] dimers –, combined with extensive spectroscopic analysis, single-crystal X-ray crystallography, and microcrystal electron diffraction experiments, the structures with absolute configurations of – were unequivocally elucidated. Furthermore, quantum mechanics-based H NMR iterative full spin analysis successfully established the correlations between the signal patterns of cyclobutane protons and the structural information of the cyclobutane ring in phenylpropanoid-derived [2+2] dimers, providing a diagnostic tool for the rapid structural elucidation of [2+2]-type cyclobutane derivatives.
[2+2]型环丁烷衍生物是一个庞大的天然产物家族，其分子结构多种多样。然而，环丁烷环的结构阐明，包括其连接方式和立体化学，是一项重大挑战。Plumerubradins A-C (-) 是三种新型鸢尾甙 [2+2] 二聚体，具有高度官能化的环丁烷核心和多个立体中心。通过对化合物-的生物仿生半合成和化学降解、苯丙苷衍生[2+2]二聚体-的合成，并结合大量光谱分析、单晶 X 射线晶体学和微晶电子衍射实验，明确阐明了-的绝对构型结构。此外，基于量子力学的氢核磁共振迭代全自旋分析成功地建立了环丁烷质子信号模式与苯丙类衍生[2+2]二聚体中环丁烷环结构信息之间的相关性，为快速阐明[2+2]型环丁烷衍生物的结构提供了诊断工具。
{"title":"Structure elucidation of plumerubradins A–C: Correlations between 1H NMR signal patterns and structural information of [2+2]-type cyclobutane derivatives","authors":"Yu Xiong, Li-Jun Hu, Jian-Guo Song, Di Zhang, Yi-Shuang Peng, Xiao-Jun Huang, Jian Hong, Bin Zhu, Wen-Cai Ye, Ying Wang","doi":"10.1016/j.cclet.2024.110149","DOIUrl":"https://doi.org/10.1016/j.cclet.2024.110149","url":null,"abstract":"[2+2]-Type cyclobutane derivatives comprise a large family of natural products with diverse molecular architectures. However, the structure elucidation of the cyclobutane ring, including its connection mode and stereochemistry, presents a significant challenge. Plumerubradins A–C (–), three novel iridoid glycoside [2+2] dimers featuring a highly functionalized cyclobutane core and multiple stereogenic centers, were isolated from the flowers of Plumeria rubra. Through biomimetic semisynthesis and chemical degradation of compounds –, synthesis of phenylpropanoid-derived [2+2] dimers –, combined with extensive spectroscopic analysis, single-crystal X-ray crystallography, and microcrystal electron diffraction experiments, the structures with absolute configurations of – were unequivocally elucidated. Furthermore, quantum mechanics-based H NMR iterative full spin analysis successfully established the correlations between the signal patterns of cyclobutane protons and the structural information of the cyclobutane ring in phenylpropanoid-derived [2+2] dimers, providing a diagnostic tool for the rapid structural elucidation of [2+2]-type cyclobutane derivatives.","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"539 1","pages":""},"PeriodicalIF":9.1,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529545","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}
Pub Date : 2024-06-20DOI: 10.1016/j.cclet.2024.110142
Shenglan Zhou , Haijian Li , Hongyi Gao , Ang Li , Tian Li , Shanshan Cheng , Jingjing Wang , Jitti Kasemchainan , Jianhua Yi , Fengqi Zhao , Wengang Qu
Photocatalysis is widely regarded as a highly promising sustainable technique for addressing the challenges posed by environmental pollution and energy provision. In recent years, metal-loaded MOFs has become a rising star within the domain of photocatalysis due to its high specific surface area and porosity, adjustable structure, diverse and abundant catalytic components, which has exhibited excellent photocatalytic activity and exhibit great potential in a range of disciplines. In this paper, the principles for evaluating the photocatalytic performance of MOFs-based materials were firstly introduced, and some typical examples were also listed accordingly. Along with this, particular emphasis is paid to the main factors affecting the photocatalytic performance of metal-loaded MOFs. Then the synthesis and design strategies of MOFs loaded metal entities of varying sizes (single atoms, nanoclusters, and nanoparticles), and their applications in photocatalytic CO2 reduction, hydrogen production, photooxidation and photocatalytic hydrogenation were summarized and discussed. Finally, the opportunities and challenges faced in this kind of MOFs-based composites were analyzed from different perspectives. This report is expected to help researchers design and develop high-performance MOFs-based photocatalytic materials.
{"title":"Recent advances in metal-loaded MOFs photocatalysts: From single atom, cluster to nanoparticle","authors":"Shenglan Zhou , Haijian Li , Hongyi Gao , Ang Li , Tian Li , Shanshan Cheng , Jingjing Wang , Jitti Kasemchainan , Jianhua Yi , Fengqi Zhao , Wengang Qu","doi":"10.1016/j.cclet.2024.110142","DOIUrl":"10.1016/j.cclet.2024.110142","url":null,"abstract":"<div><div>Photocatalysis is widely regarded as a highly promising sustainable technique for addressing the challenges posed by environmental pollution and energy provision. In recent years, metal-loaded MOFs has become a rising star within the domain of photocatalysis due to its high specific surface area and porosity, adjustable structure, diverse and abundant catalytic components, which has exhibited excellent photocatalytic activity and exhibit great potential in a range of disciplines. In this paper, the principles for evaluating the photocatalytic performance of MOFs-based materials were firstly introduced, and some typical examples were also listed accordingly. Along with this, particular emphasis is paid to the main factors affecting the photocatalytic performance of metal-loaded MOFs. Then the synthesis and design strategies of MOFs loaded metal entities of varying sizes (single atoms, nanoclusters, and nanoparticles), and their applications in photocatalytic CO<sub>2</sub> reduction, hydrogen production, photooxidation and photocatalytic hydrogenation were summarized and discussed. Finally, the opportunities and challenges faced in this kind of MOFs-based composites were analyzed from different perspectives. This report is expected to help researchers design and develop high-performance MOFs-based photocatalytic materials.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 1","pages":"Article 110142"},"PeriodicalIF":9.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552831","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}
This work develops a protein imprinted nanosphere with varied recognition specificity for bovine serum albumin (BSA) and lysozyme (Lyz) under different UV light through a gradient dual crosslinked imprinting strategy (i.e., covalent crosslinking and dynamic reversible crosslinking). The imprinting cavities are initially constructed using irreversible covalent crosslinking to specifically recognize BSA, and then the coumarin residues in the imprinting cavities are crosslinked under 365 nm UV light to further imprint Lyz, because Lyz has smaller size than BSA. Since the photo-crosslinking of coumarin is a reversible reaction, the imprinting cavities of Lyz can be de-crosslinked under 254 nm UV light and restore the imprinting cavities of BSA. Moreover, the N-isopropyl acrylamide (NIPAM) and pyrrolidine residues copolymerized in the polymeric surface of the nanospheres are temperature- and pH-responsive respectively. Therefore, the protein rebinding and release behaviors of the nanospheres are controlled by external temperature and pH. As a result, the materials can selectively separate BSA from real bovine whole blood and Lyz from egg white under different UV light. This study may provide a new strategy for construction of protein imprinted materials with tunable specificity for different proteins.
{"title":"Light-controlled protein imprinted nanospheres with variable recognition specificity","authors":"Mingqi Wang, Shixin Fa, Jiate Yu, Guoxian Zhang, Yi Yan, Qing Liu, Qiuyu Zhang","doi":"10.1016/j.cclet.2024.110124","DOIUrl":"10.1016/j.cclet.2024.110124","url":null,"abstract":"<div><div>This work develops a protein imprinted nanosphere with varied recognition specificity for bovine serum albumin (BSA) and lysozyme (Lyz) under different UV light through a gradient dual crosslinked imprinting strategy (<em>i.e.</em>, covalent crosslinking and dynamic reversible crosslinking). The imprinting cavities are initially constructed using irreversible covalent crosslinking to specifically recognize BSA, and then the coumarin residues in the imprinting cavities are crosslinked under 365 nm UV light to further imprint Lyz, because Lyz has smaller size than BSA. Since the photo-crosslinking of coumarin is a reversible reaction, the imprinting cavities of Lyz can be de-crosslinked under 254 nm UV light and restore the imprinting cavities of BSA. Moreover, the <em>N</em>-isopropyl acrylamide (NIPAM) and pyrrolidine residues copolymerized in the polymeric surface of the nanospheres are temperature- and pH-responsive respectively. Therefore, the protein rebinding and release behaviors of the nanospheres are controlled by external temperature and pH. As a result, the materials can selectively separate BSA from real bovine whole blood and Lyz from egg white under different UV light. This study may provide a new strategy for construction of protein imprinted materials with tunable specificity for different proteins.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110124"},"PeriodicalIF":9.4,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656944","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}
Pub Date : 2024-06-18DOI: 10.1016/j.cclet.2024.109890
Sinong Wang , Shanshan Jin , Xue Yang , Yanyan Huang , Peng Liu , Yi Tang , Yuliang Yang
Acidification of paper-based relics is a common problem, leading to their degradation and eventual loss. Paper deacidification is highly dependent on a limited variety of alkaline materials, and the development of new materials that are safe, efficient and easy-to-prepare is highly demanded to ensure a high level of safety and effective protection of paper-based relic. This study proposes the introduction of layered double hydroxide (LDH) and its calcined product, mixed metal oxide (layered double oxide (LDO)), as innovative protective materials for the deacidification of paper with varying levels of acidity. The results demonstrate that treatment with Mg-Al LDH/LDO can effectively modify the pH of acidic paper (e.g., pH ∼ 4.0–6.4) to a neutral or weakly basic state, maintaining this desirable pH range even under long-term accelerated aging condition. Remarkably, LDH proves to be well-suited for the protection of slightly acidified paper (e.g., pH > 5.5), while LDO serves as an especially option for the deacidification of severely acidified paper (e.g., pH ≤ 5.5). During aqueous deacidification, due to the memory effect of the LDH-based materials, LDO is converted to rehydrated LDH, which creates a mild and appropriate alkaline retention in the paper, avoiding damage caused by strong alkalinity such as cellulose degradation and pigment fading during subsequent long-term natural preservation of the paper. Furthermore, Mg-Al LDH/LDO materials also exhibit flame-retardant and bacteriostatic properties. This opens up opportunities for the safe, efficient and multifunctional protection of acidified paper-based relics.
{"title":"Development of Mg-Al LDH and LDO as novel protective materials for deacidification of paper-based relics","authors":"Sinong Wang , Shanshan Jin , Xue Yang , Yanyan Huang , Peng Liu , Yi Tang , Yuliang Yang","doi":"10.1016/j.cclet.2024.109890","DOIUrl":"https://doi.org/10.1016/j.cclet.2024.109890","url":null,"abstract":"<div><p>Acidification of paper-based relics is a common problem, leading to their degradation and eventual loss. Paper deacidification is highly dependent on a limited variety of alkaline materials, and the development of new materials that are safe, efficient and easy-to-prepare is highly demanded to ensure a high level of safety and effective protection of paper-based relic. This study proposes the introduction of layered double hydroxide (LDH) and its calcined product, mixed metal oxide (layered double oxide (LDO)), as innovative protective materials for the deacidification of paper with varying levels of acidity. The results demonstrate that treatment with Mg-Al LDH/LDO can effectively modify the pH of acidic paper (<em>e.g.</em>, pH ∼ 4.0–6.4) to a neutral or weakly basic state, maintaining this desirable pH range even under long-term accelerated aging condition. Remarkably, LDH proves to be well-suited for the protection of slightly acidified paper (<em>e.g</em>., pH > 5.5), while LDO serves as an especially option for the deacidification of severely acidified paper (<em>e.g</em>., pH ≤ 5.5). During aqueous deacidification, due to the memory effect of the LDH-based materials, LDO is converted to rehydrated LDH, which creates a mild and appropriate alkaline retention in the paper, avoiding damage caused by strong alkalinity such as cellulose degradation and pigment fading during subsequent long-term natural preservation of the paper. Furthermore, Mg-Al LDH/LDO materials also exhibit flame-retardant and bacteriostatic properties. This opens up opportunities for the safe, efficient and multifunctional protection of acidified paper-based relics.</p></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"35 9","pages":"Article 109890"},"PeriodicalIF":9.1,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141424078","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}
Pub Date : 2024-06-18DOI: 10.1016/j.cclet.2024.110125
Liyong Ding , Zhenhua Pan , Qian Wang
Photocatalytic hydrogen peroxide (H2O2) synthesis, driven by solar energy, offers a sustainable and cleaner alternative for producing green H2O2 from water and oxygen. 2D photocatalysts have emerged as powerful materials for this purpose due to their unique physiochemical properties such as a flexible planar structure and large surface area. This review provides a comprehensive overview of the latest advances in 2D photocatalytic materials employed in H2O2 synthesis, including metal oxides, metal chalcogenides, bismuth-based materials, graphitic carbon nitrides (g-C3N4), metal−organic frameworks (MOFs), and covalent organic frameworks (COFs). Beginning with an extensive introduction to possible reaction routes for photocatalytic H2O2 synthesis, we summarize the common methods for H2O2 detection, crucial for obtaining reliable results in H2O2 studies. Additionally, we highlight molecular-level modification strategies for 2D photocatalysts, such as surface modification, ion doping, defect engineering, and heterojunction construction, which promote high-efficiency solar-to-chemical conversion for sustainable H2O2 photosynthesis. Furthermore, we discuss key issues and provide perspective outlooks for the efficient and sustainable generation of H2O2 in scale-up industrial production. This review offers in-depth insights into different reaction pathways of H2O2 synthesis and provides design principles for 2D photocatalysts to enhance H2O2 production, guiding the development of efficient photocatalysts for H2O2 synthesis.
{"title":"2D photocatalysts for hydrogen peroxide synthesis","authors":"Liyong Ding , Zhenhua Pan , Qian Wang","doi":"10.1016/j.cclet.2024.110125","DOIUrl":"10.1016/j.cclet.2024.110125","url":null,"abstract":"<div><p>Photocatalytic hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) synthesis, driven by solar energy, offers a sustainable and cleaner alternative for producing green H<sub>2</sub>O<sub>2</sub> from water and oxygen. 2D photocatalysts have emerged as powerful materials for this purpose due to their unique physiochemical properties such as a flexible planar structure and large surface area. This review provides a comprehensive overview of the latest advances in 2D photocatalytic materials employed in H<sub>2</sub>O<sub>2</sub> synthesis, including metal oxides, metal chalcogenides, bismuth-based materials, graphitic carbon nitrides (g-C<sub>3</sub>N<sub>4</sub>), metal−organic frameworks (MOFs), and covalent organic frameworks (COFs). Beginning with an extensive introduction to possible reaction routes for photocatalytic H<sub>2</sub>O<sub>2</sub> synthesis, we summarize the common methods for H<sub>2</sub>O<sub>2</sub> detection, crucial for obtaining reliable results in H<sub>2</sub>O<sub>2</sub> studies. Additionally, we highlight molecular-level modification strategies for 2D photocatalysts, such as surface modification, ion doping, defect engineering, and heterojunction construction, which promote high-efficiency solar-to-chemical conversion for sustainable H<sub>2</sub>O<sub>2</sub> photosynthesis. Furthermore, we discuss key issues and provide perspective outlooks for the efficient and sustainable generation of H<sub>2</sub>O<sub>2</sub> in scale-up industrial production. This review offers in-depth insights into different reaction pathways of H<sub>2</sub>O<sub>2</sub> synthesis and provides design principles for 2D photocatalysts to enhance H<sub>2</sub>O<sub>2</sub> production, guiding the development of efficient photocatalysts for H<sub>2</sub>O<sub>2</sub> synthesis.</p></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"35 12","pages":"Article 110125"},"PeriodicalIF":9.4,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149322","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}
Pub Date : 2024-06-17DOI: 10.1016/j.cclet.2024.110134
Wenhao Wang , Siyuan Peng , Zhengwei Huang , Xin Pan
{"title":"Tuning amino/hydroxyl ratios of nanovesicles to manipulate protein corona-mediated in vivo fate","authors":"Wenhao Wang , Siyuan Peng , Zhengwei Huang , Xin Pan","doi":"10.1016/j.cclet.2024.110134","DOIUrl":"10.1016/j.cclet.2024.110134","url":null,"abstract":"","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"35 11","pages":"Article 110134"},"PeriodicalIF":9.4,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141935039","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}
Pub Date : 2024-06-15DOI: 10.1016/j.cclet.2024.110123
In our work, polymorphism strategy has been successfully applied to tune up chromism and luminescence properties of viologen-based materials. Two polymorphs of viologen-based complexes of α-CdBr2(PHSQ)2(H2O)2 (1) and β-CdBr2(PHSQ)2(H2O)2 (2) (PHSQ = N-(4-sulfophenyl)-4,4′-bipyridinium) were synthesized by changing the solvent. They can both respond to UV light and electricity in the manner of chromism visible to the naked eye and the coloration states have good reversibility, through which an inkless erasable printing model has been established. But the coloration contrast of 1 is higher compared to 2. Meanwhile, they both exhibit photoluminescence properties and the intensity of 1 is twice that of 2, which is accompanied by photoquenching upon continuous UV light irradiation. The only divergence of disordered/ordered O atoms in the two crystalline compounds leads to significantly different chromic and luminescent properties. Further explorations simultaneously demonstrate that the different chromic performance between 1 and 2 should attribute to the alteration of stimulus-induced (light/ electricity) electron transfer channels caused by the ordered/disordered O atoms in the complexes, which is achieved through CH···O and OH···O interactions to change crystal arrangement and structural rigidity, thus affect luminescent properties.
{"title":"Tuning up of chromism, luminescence in cadmium-viologen complexes through polymorphism strategy: Inkless erasable printing application","authors":"","doi":"10.1016/j.cclet.2024.110123","DOIUrl":"10.1016/j.cclet.2024.110123","url":null,"abstract":"<div><div>In our work, polymorphism strategy has been successfully applied to tune up chromism and luminescence properties of viologen-based materials. Two polymorphs of viologen-based complexes of <em>α</em>-CdBr<sub>2</sub>(PHSQ)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub> (<strong>1</strong>) and <em>β</em>-CdBr<sub>2</sub>(PHSQ)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub> (<strong>2</strong>) (PHSQ = <em>N</em>-(4-sulfophenyl)-4,4′-bipyridinium) were synthesized by changing the solvent. They can both respond to UV light and electricity in the manner of chromism visible to the naked eye and the coloration states have good reversibility, through which an inkless erasable printing model has been established. But the coloration contrast of <strong>1</strong> is higher compared to <strong>2</strong>. Meanwhile, they both exhibit photoluminescence properties and the intensity of <strong>1</strong> is twice that of <strong>2</strong>, which is accompanied by photoquenching upon continuous UV light irradiation. The only divergence of disordered/ordered O atoms in the two crystalline compounds leads to significantly different chromic and luminescent properties. Further explorations simultaneously demonstrate that the different chromic performance between <strong>1</strong> and <strong>2</strong> should attribute to the alteration of stimulus-induced (light/ electricity) electron transfer channels caused by the ordered/disordered O atoms in the complexes, which is achieved through C<img>H···O and O<img>H···O interactions to change crystal arrangement and structural rigidity, thus affect luminescent properties.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 1","pages":"Article 110123"},"PeriodicalIF":9.4,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141397561","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}
Pub Date : 2024-06-13DOI: 10.1016/j.cclet.2024.110118
Chong Liu , Ling Li , Jiahui Gao , Yanwei Li , Nazhen Zhang , Jing Zang , Cong Liu , Zhaopei Guo , Yanhui Li , Huayu Tian
It is well known that cationic polymers have excellent antimicrobial capacity accompanied with high biotoxicity, to reduce biotoxicity needs to decrease the number of cationic groups on polymers, which will influence antimicrobial activity. It is necessary to design a cationic polymer mimic natural antimicrobial peptide with excellent antibacterial activity and low toxicity to solve the above dilemma. Here, we designed and prepared a series of cationic poly(β-amino ester)s (PBAEs) with different cationic contents, and introducing hydrophobic alkyl chain to adjust the balance between antimicrobial activity and biotoxicity to obtain an ideal antimicrobial polymer. The optimum one of synthesized PBAE (hydrophilic cationic monomer :hydrophobic monomer = 5:5) was screened by testing cytotoxicity and minimum inhibitory concentration (MIC), which can effectively kill S. aureus and E. coli with PBAE concentration of 15 μg/mL by a spread plate bacteriostatic method and dead and alive staining test. The way of PBAE killing bacterial was destroying the membrane like natural antimicrobial peptide observed by scanning electron microscopy (SEM). In addition, PBAE did not exhibit hemolysis and cytotoxicity. In particular, from the result of animal tests, the PBAE was able to promote healing of infected wounds from removing mature S. aureus and E. coli on the surface of infected wound. As a result, our work offers a viable approach for designing antimicrobial materials, highlighting the significant potential of PBAE polymers in the field of biomedical materials.
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