Australian Journal of Chemistry最新文献

Construction of QuO/α-NaO-CoPc-functionalised UiO-66-NH2 and its mechanism for efficient synergistic photocatalytic mineralisation of Congo Red QuO/α- nao - copc功能化UiO-66-NH2的构建及其高效协同光催化刚果红矿化机理

4区化学

Australian Journal of Chemistry Pub Date : 2025-11-26 DOI: 10.1071/ch25062

Yanbing Yin, Xiaohui Li, Zhou Wang, Shuang Tan, Guohua Dong, Jun Cao, Yamin Xu

{"title":"Construction of QuO/α-NaO-CoPc-functionalised UiO-66-NH2 and its mechanism for efficient synergistic photocatalytic mineralisation of Congo Red","authors":"Yanbing Yin, Xiaohui Li, Zhou Wang, Shuang Tan, Guohua Dong, Jun Cao, Yamin Xu","doi":"10.1071/ch25062","DOIUrl":"https://doi.org/10.1071/ch25062","url":null,"abstract":"In this study, quinolinoxy cobalt phthalocyanine (QuOCoPc) and naphthoxy cobalt phthalocyanine (α-NaOCoPc) were synthesised. Two novel composite photocatalysts, QuOCoPc@UiO-66-NH2 and α-NaOCoPc@UiO-66-NH2, were prepared by loading the respective phthalocyanines onto UiO-66-NH2 by an impregnation method. The samples were characterised using techniques such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). Using visible light as the light source and Congo Red (CR) solution as the target pollutant, the photocatalytic properties of the two composite materials were investigated. The results demonstrated that both composite catalysts exhibited excellent photocatalytic performance. Compared with the individual components QuOCoPc, α-NaOCoPc and UiO-66-NH2, the composites showed significantly enhanced catalytic degradation of CR. The degradation efficiencies of QuOCoPc@UiO-66-NH2 and α-NaOCoPc@UiO-66-NH2 reached 95.9 and 84.9% respectively. These findings indicate a strong synergistic effect between the phthalocyanines and UiO-66-NH2, with hydroxyl radicals (˙OH) and superoxide radicals (˙O2−) playing crucial roles as the primary active species.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"78 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147917276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The C-terminal region of Opisthorchis viverrini granulin-1 promotes cell proliferation in the absence of regular secondary structure. Opisthorchis viverrini granulin-1的c端区在缺乏规则二级结构的情况下促进细胞增殖。

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2025-11-01 Epub Date: 2025-11-17 DOI: 10.1071/CH25079

Mohadeseh Dastpeyman, David T Wilson, Alex Loukas, Michael J Smout, Norelle L Daly

{"title":"The C-terminal region of Opisthorchis viverrini granulin-1 promotes cell proliferation in the absence of regular secondary structure.","authors":"Mohadeseh Dastpeyman, David T Wilson, Alex Loukas, Michael J Smout, Norelle L Daly","doi":"10.1071/CH25079","DOIUrl":"10.1071/CH25079","url":null,"abstract":"Topical application of granulin-derived peptides has the potential to alleviate the burden of chronic wounds. Granulins are a family of growth factor proteins that generally contain six disulfide bonds and are found in most organisms. They have diverse sequences and complex structure-function relationships. Select examples are potent wound healing agents, making it important to improve our understanding of how granulins fold and the structural features critical for bioactivity. We have previously shown that fragments corresponding to the N-terminal region of the parasite granulin, Ov-GRN-1, can fold autonomously even with a non-native disulfide bond and still have well-defined structures. Here, we show that this phenomenon appears unique to the N-terminal region, as a peptide corresponding to the C-terminal fragment of Ov-GRN-1 does not fold independently in an analogous manner to the N-terminal region. Despite a lack of structure in the C-terminal granulin fragment, this peptide promotes cell proliferation, indicating that the sequence might be more important than the three-dimensional structure for Ov-GRN-1 wound-healing bioactivity.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"78 11","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13348780/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148418353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase change microcapsules modified by thermal conductivity reinforced materials for enhanced thermal energy storage 热导增强材料改性相变微胶囊，增强热能储存

4区化学

Australian Journal of Chemistry Pub Date : 2025-10-31 DOI: 10.1071/ch25092

Yi Cui, Lingyun Jia, Jiayu Liu, Pengtao Liu

引用次数: 0

Ultrasound-assisted deep-eutectic-solvent-based dispersive liquid–liquid microextraction for lead detection in high-salt foods: a green analytical strategy for overcoming sodium chloride interference 超声辅助深共晶溶剂分散液液微萃取法检测高盐食品中的铅：一种克服氯化钠干扰的绿色分析策略

4区化学

Australian Journal of Chemistry Pub Date : 2025-10-31 DOI: 10.1071/ch25084

Xifeng Gao, Fangfang Li, Dawei Xu, Hanshuang Zhang, Fa Zhao, Yuehong Cheng, Rui Dong, Keyun Chen, Yanming Liu

{"title":"Ultrasound-assisted deep-eutectic-solvent-based dispersive liquid–liquid microextraction for lead detection in high-salt foods: a green analytical strategy for overcoming sodium chloride interference","authors":"Xifeng Gao, Fangfang Li, Dawei Xu, Hanshuang Zhang, Fa Zhao, Yuehong Cheng, Rui Dong, Keyun Chen, Yanming Liu","doi":"10.1071/ch25084","DOIUrl":"https://doi.org/10.1071/ch25084","url":null,"abstract":"In this study, an accurate and applicable analytical method was constructed by microextraction-based deep eutectic solvent (DES)–graphite furnace atomic absorption spectrometry to determine trace PbII in high-salt foods. A synergistic microextraction procedure was developed to eliminate sodium chloride interference by combining selective PbII chelation with dithiophosphate, hydrophobic DES to block NaCl migration, and low-temperature solidification for matrix purification. Under optimum conditions, the method exhibited a linear range of 0.15–100 μg L−1, a detection limit of 1.25 μg kg−1, relative standard deviations (RSDs) between 2.04 and 3.56%, and an enrichment factor of 49.5 while tolerating 2% (w/v) NaCl interference. By effectively overcoming matrix interference, the optimised method was successfully used in high-salt foods such as hotpot base, pickled kelp, chicken essence, and soy sauce, providing a sensitive, selective, and cost-effective strategy for trace lead detection for complex food matrixes.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"78 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Effective enhancement of CO2 capture performance of solid amine adsorbents prepared from diethylenetriamine-modified mesoporous silica: optimisation experiments and kinetic calculations 二乙基三胺修饰介孔二氧化硅制备的固体胺吸附剂对CO2捕获性能的有效增强：优化实验和动力学计算

4区化学

Australian Journal of Chemistry Pub Date : 2025-09-05 DOI: 10.1071/ch25056

Huipeng Zhao, Jingsi Yang, Heli Tian, Kunjie Li, Ruihong Zhao, Xiaoqing Liu, Pingxia Zhang, Xiaoxue Niu, G.P. Wu, Haoming Li

{"title":"Effective enhancement of CO2 capture performance of solid amine adsorbents prepared from diethylenetriamine-modified mesoporous silica: optimisation experiments and kinetic calculations","authors":"Huipeng Zhao, Jingsi Yang, Heli Tian, Kunjie Li, Ruihong Zhao, Xiaoqing Liu, Pingxia Zhang, Xiaoxue Niu, G.P. Wu, Haoming Li","doi":"10.1071/ch25056","DOIUrl":"https://doi.org/10.1071/ch25056","url":null,"abstract":"In this study, four DETA-SiO2 solid amine adsorbents were prepared by an impregnation method using diethylenetriamine (DETA) as the amine source and four types of silica with different pore structures as the carrier, and the effects of varying amine concentrations, temperatures and pressures on the CO2 adsorption performance were investigated. The results showed that the prepared N-MCM-48-C material reached a maximum CO2 adsorption of 417.45 mg g−1 at 25°C and 0.5 MPa. The effect of pressure on the adsorption performance was verified by kinetic calculations using the intraparticle diffusion model and the Thomas dynamic adsorption model. The presence of surfactant (CTAB) inside the carrier diluted the amine concentration, which improved the homogenisation of the amine on the carrier and increased the CO2 mass transfer efficiency and adsorption capacity. Multiple pressure swing adsorption (PSA) experiments have shown that N-MCM-48-C material has stable adsorption performance during the PSA process and the adsorption capacity can reach 300 mg g−1.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"78 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147888186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synthesis and characterization of non-porous amorphous polymers for enhanced iodine adsorption 增强碘吸附的无孔非晶聚合物的合成与表征

4区化学

Australian Journal of Chemistry Pub Date : 2024-10-10 DOI: 10.1071/ch24068

Mengqi Wang, Henglong Tang, Zhu Long, Chang Sun

{"title":"Synthesis and characterization of non-porous amorphous polymers for enhanced iodine adsorption","authors":"Mengqi Wang, Henglong Tang, Zhu Long, Chang Sun","doi":"10.1071/ch24068","DOIUrl":"https://doi.org/10.1071/ch24068","url":null,"abstract":"With the increasing demand for sustainable energy sources, the management of radioactive iodine, a byproduct of nuclear energy, has become critical for environmental safety and human health. This study presents the design and synthesis of non-porous amorphous polymers, specifically PEI-PD, derived from polyethylenimine (PEI) and pyromellitic dianhydride (PD), for the adsorption of iodine from aqueous and gaseous environments. The adsorbent exhibits high efficiency in capturing iodine, with a remarkable adsorption capacity of 4.43 g g–1 for volatile iodine and 1.43 g g–1 for liquid iodine. The adsorption process is governed by a pseudo-second-order kinetic model and follows the Langmuir isotherm, indicating a chemisorption mechanism driven by electrostatic attraction. The mechanism of iodine adsorption by the adsorbent was investigated using infrared spectroscopy and independent gradient modeling (IGMH), which helped to clarify types of weak interaction between the adsorbent and iodine and the adsorption sites. The study highlights the potential of PEI-PD as an effective material for the removal of radioactive iodine, contributing to the safe and sustainable management of nuclear waste.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"77 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147920579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 4

Expanding on the plecstatin anticancer agent class: exchange of the chlorido ligand for N-heterocyclic ligands 扩展褶皱素抗癌剂类别：用 N-杂环配体交换氯配体

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2024-09-13 DOI: 10.1071/ch24080

Saawan Kumar, Mie Riisom, Stephen M. F. Jamieson, Tilo Söhnel, Suresh Bhargava, Jing Sun, Christian G. Hartinger

{"title":"Expanding on the plecstatin anticancer agent class: exchange of the chlorido ligand for N-heterocyclic ligands","authors":"Saawan Kumar, Mie Riisom, Stephen M. F. Jamieson, Tilo Söhnel, Suresh Bhargava, Jing Sun, Christian G. Hartinger","doi":"10.1071/ch24080","DOIUrl":"https://doi.org/10.1071/ch24080","url":null,"abstract":"Metal piano-stool complexes based on pyridinecarbothioamide (PCA) have shown promising antiproliferative and in vivo anticancer activity, in particular [Ru(cym)(p-F-PCA)Cl]PF6 (cym is η6-p-cymene; plecstatin-1). The impact of modifications of the PCA and π-bound ligands on biological properties has been extensively investigated. Herein, we explored the influence of exchanging the chlorido ligand with the N-heterocycles 1-methylimidazole, 1-methylbenzimidazole and pyridine. In solution, an equilibrium between the protonated and deprotonated forms of the thioamide bond was observed, which was found dictated by the solvent system with both species detected in polar solvents. [Ru(cym)(PCA)Cl]+ complexes exhibit unique behaviour in an aqueous environment where they rapidly form dimeric species after substitution of the chlorido ligand for the sulfur donor of the PCA ligand of a second complex molecule. This was also observed for the synthesised complexes with the N-heterocyclic ligands being cleaved from the Ru centre allowing for dimerisation, which may be reversed by acidification of the solution resulting in the formation of equivalent mononuclear compounds. This behaviour explains the similar biological properties of the complexes with respect to that of plecstatin-1.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"2 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142261173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The quantification of radical concentration in organic radical polymers: techniques and challenges 有机自由基聚合物中自由基浓度的量化：技术与挑战

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2024-09-12 DOI: 10.1071/ch24085

Theo A. Ellingsen, Stuart C. Thickett, Rebecca O. Fuller

引用次数: 0

Synthesis and stability studies of constrained peptide–antimony bicycles 受限肽锑双环的合成与稳定性研究

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2024-08-27 DOI: 10.1071/ch24094

Sven Ullrich, Pritha Ghosh, Minghao Shang, Sauhta Siryer, Santhanalaxmi Kumaresan, Bishvanwesha Panda, Lani J. Davies, Upamali Somathilake, Abhishek P. Patel, Christoph Nitsche

{"title":"Synthesis and stability studies of constrained peptide–antimony bicycles","authors":"Sven Ullrich, Pritha Ghosh, Minghao Shang, Sauhta Siryer, Santhanalaxmi Kumaresan, Bishvanwesha Panda, Lani J. Davies, Upamali Somathilake, Abhishek P. Patel, Christoph Nitsche","doi":"10.1071/ch24094","DOIUrl":"https://doi.org/10.1071/ch24094","url":null,"abstract":"Peptide therapeutics play an increasingly important role in modern drug discovery. Improving the pharmacokinetic profile of bioactive peptides has been effectively achieved with chemical modifications, especially macrocyclisation reactions. Consequently, there is a great demand for highly constrained compounds such as bicyclic peptides. In our previous research, we introduced peptide–bismuth bicycles and peptide–arsenic bicycles as new classes of constrained peptides. In this work, we extend our peptide bicyclisation strategy towards antimony. Similar to arsenic and bismuth, antimony(III) selectively binds to three cysteine residues in peptides, enabling the in situ formation of stable bicycles. The bicyclisation reaction occurs instantaneously under biocompatible conditions at physiological pH. Antimony–peptide bicycles remain largely intact in the presence of the common metal chelator ethylenediaminetetraacetic acid (EDTA) and the main endogenous thiol competitor glutathione (GSH). Furthermore, when challenged with bismuth(III) from water-soluble gastrodenol (bismuth tripotassium dicitrate), antimony–peptide bicycles convert into the corresponding bismuth–peptide bicycle, highlighting the superior thiophilicity of bismuth over other pnictogens. Our study further expands the toolbox of peptide multicyclisation with main group elements previously underexplored in chemical biology.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"48 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The cyclobutene diester approach to alkyl citrate natural products 环丁烯二酯的柠檬酸烷基天然产物方法

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2024-08-22 DOI: 10.1071/ch24088

Nikolai P. Rossouw, Mark A. Rizzacasa

引用次数: 0