Australian Journal of Chemistry最新文献_第4页

Psychedelic medicines 迷幻药

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-07-17 DOI: 10.1021/cen-09413-cover

M. Piggott, P. Duggan

引用次数: 0

Retraction notice to ‘Crystal Structures and Anti-Colon Cancer Activity of Two Lanthanide Complexes with O-Donor Diacetone Ligands’ [Australian Journal of Chemistry (2019) doi:10.1071/CH18568] “两种含o -供体二丙酮配体的镧系化合物的晶体结构和抗结肠癌活性”的撤回通知[澳大利亚化学杂志](2019)doi:10.1071/CH18568]

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-07-10 DOI: 10.1071/ch18568_re

Gang Chen, Chang-Hong Yu, Xin Lv, Bing Qiu, Wei Jiang

引用次数: 0

Evaluation of the 5-ethynyl-1,3,3-trimethyl-3H-indole ligand for molecular materials applications 5-乙基-1,3,3-三甲基- 3h -吲哚配体在分子材料中的应用评价

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-07-06 DOI: 10.1071/ch23069

David Jago, D. C. Milan, A. Sobolev, S. Higgins, A. Vezzoli, R. Nichols, George A. Koutsantonis

{"title":"Evaluation of the 5-ethynyl-1,3,3-trimethyl-3H-indole ligand for molecular materials applications","authors":"David Jago, D. C. Milan, A. Sobolev, S. Higgins, A. Vezzoli, R. Nichols, George A. Koutsantonis","doi":"10.1071/ch23069","DOIUrl":"https://doi.org/10.1071/ch23069","url":null,"abstract":"The modification of conjugated organic compounds with organometallic moieties allows the modulation of the electronic and optoelectronic properties of such compounds and lends them to a variety of material applications. The organometallic complexes [M(Cp′)(L)n] (M = Ru or Fe; Cp′ = cyclopentadiene (Cp) or pentamethylcyclopentadiene (Cp*); (L)n = (PPh3)2 or 1,2-bi(diphenylphosphino)ethane (dppe)) and [M(L)n] (M = Ru; (L)n = (dppe)2 or (P(OEt)3)4; or M = Pt; (L)n = (PEt3)2, (PPh3)2 or tricyclohexylphosphine, (PCy3)2) modified with a 5-ethynyl-1,3,3-trimethyl-3H-indole ligand were prepared and characterised by NMR spectroscopy, IR and single-crystal X-ray diffraction. Cyclic voltammetry and IR spectroelectrochemistry of the ruthenium systems showed a single-electron oxidation localised over the M–C≡C–aryl moiety. The N-heteroatom of the indole ligand showed Lewis base properties and was able to extract a proton from a vinylidene intermediate as well as coordinate to CuI. Examples from the wire-like compounds were also studied by single-molecule break junction experiments but molecular junction formation was not observed. This is most likely attributable to the binding characteristics of the substituted terminal indole groups used here to the gold contacts.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88914030","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

PhotoCORMs based on zinc(ii)-flavonol derivatives with superior biological properties for use in living organisms 以锌(ii)-黄酮醇衍生物为基础的具有优异生物学性能的生物材料

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-07-06 DOI: 10.1071/ch22243

L. Sun, Siying An, Dong Wei, Ronglan Zhang, Jian-she Zhao

{"title":"PhotoCORMs based on zinc(ii)-flavonol derivatives with superior biological properties for use in living organisms","authors":"L. Sun, Siying An, Dong Wei, Ronglan Zhang, Jian-she Zhao","doi":"10.1071/ch22243","DOIUrl":"https://doi.org/10.1071/ch22243","url":null,"abstract":"CO is an important gas signal molecule and plays an indispensable role in the maintenance of cell homeostasis. Herein, photoinduced CO-releasing molecules (photoCORMs), that combine the effects of zinc(ii) and different ligands including flavonol derivatives and tripod pyridyl compounds, are reported. The photoCORMs can release about one equivalent of CO, and the solid samples are stabile for more than 90 days in air. Cytotoxicity tests suggest that photoCORMs possess low toxicity and have the potential to be used in organisms. The intracellular uptake and photoreactivity of photoCORM 3a, with low toxicity and a rapid CO-release rate, were studied in HeLa cells. The results indicate that 3a could successfully penetrate the cell membrane and enter the cytoplasm. More importantly, it is further demonstrated that 3a can successfully release CO in HeLa cells, which is detected using intracellular CO sensors. Based on the cell study, the same result was found when the photoinduced CO release of 3a in Kunming mice was studied utilizing a carboxyhemoglobin kit. This study is of great significance for the development of new valuable CO donors that can be applied to organisms to exert their biological effects.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"25 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89628274","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

Palladium-mediated CO 2 extrusion followed by insertion of ketenes: translating mechanistic studies to develop a one-pot method for the synthesis of ketones 钯介导的CO 2挤压后插入酮:酮类合成一锅法的翻译机理研究

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-05-31 DOI: 10.1071/ch23026

Yang Yang, Allan J. Canty, Richard A. J. O’Hair

{"title":"Palladium-mediated CO 2 extrusion followed by insertion of ketenes: translating mechanistic studies to develop a one-pot method for the synthesis of ketones","authors":"Yang Yang, Allan J. Canty, Richard A. J. O’Hair","doi":"10.1071/ch23026","DOIUrl":"https://doi.org/10.1071/ch23026","url":null,"abstract":"Multistage mass spectrometry (MSn) experiments were used to explore extrusion–insertion (ExIn) reactions of the palladium complex [(phen)Pd(O2CPh)]+ (phen, 1,10-phenanthroline). Under collision-induced dissociation (CID) conditions, the organopalladium cation [(phen)Pd(Ph)]+ was formed via decarboxylation and was found to react with phenylmethylketene to yield the enolate [(phen)Pd(CPhMeC(O)Ph)]+ via an insertion reaction. A further stage of CID revealed that the enolate fragments via loss of styrene to form the acyl complex [(phen)Pd(C(O)Ph)]+. Formation of both the coordinated enolate and acyl anions is supported by density functional theory (DFT) calculations. Attempts to develop a palladium-mediated one-pot synthesis of ketones from 2,6-dimethoxybenzoic acid as the key substrate and the ketene substrates R1R2C═C═O (R1 = Ph, R2 = Me; R1 = R2 = Ph) proved challenging owing to low yields and side product formation.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"26 12","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138510224","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

Retraction notice to ‘Self-Assembly of Protoporphyrin IX-TEG Derivatives into Tunable Nanoscaled Spherical Structures’ [Australian Journal of Chemistry 63(9) (2010), 1326–1329. doi:10.1071/CH10199] “原卟啉IX-TEG衍生物自组装成可调谐纳米级球形结构”的撤回通知[澳大利亚化学杂志]63(9)(2010)，1326-1329。doi: 10.1071 / CH10199]

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-05-12 DOI: 10.1071/ch10199_re

S. Bhosale, S. Bhosale, M. Kalyankar, S. Langford, Ceilica H. Lalander

引用次数: 0

Nonlinear optics: from theory to applications, with a focus on the use of two-photon absorption in biology 非线性光学:从理论到应用，重点介绍双光子吸收在生物学中的应用

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-05-12 DOI: 10.1071/ch23015

Mélanie Dréano, O. Mongin, F. Paul, M. Humphrey

{"title":"Nonlinear optics: from theory to applications, with a focus on the use of two-photon absorption in biology","authors":"Mélanie Dréano, O. Mongin, F. Paul, M. Humphrey","doi":"10.1071/ch23015","DOIUrl":"https://doi.org/10.1071/ch23015","url":null,"abstract":"The study of nonlinear optics in the 1960s attracted considerable attention from a theoretical standpoint, engendering many proposals for practical use of these new photonic effects. Among these suggestions, the development of efficient two-photon absorption (2PA) has attracted sustained interest due to its demonstrated (or potential) use in a broad range of applications that include optical data storage, optical limiting and nanofabrication. The use of 2PA in biological applications is particularly appealing. This is because 2PA offers several advantages for bio-oriented applications, such as intrinsic three-dimensional resolution, increased penetration depth in biological materials such as tissue and highly focused excitation at half-energy, leading to a decrease of auto-fluorescence and photodamage. In this Primer Review, we introduce the essential background theory needed for an understanding of the field, we describe the key experiments deployed to quantify material performance, we discuss the evolution of 2PA molecular design, and we summarise the state-of-the-art and the existing challenges in the use of 2PA in imaging, therapy and theranostics.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"70 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78093205","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

Injectable hydrogels of enzyme-catalyzed cross-linked tyramine-modified gelatin for drug delivery 酶催化交联酪胺修饰明胶的可注射水凝胶

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-02-28 DOI: 10.1071/ch22188

Yuanhan Tang, J.-F. Ding, Xun Zhou, Xintao Ma, Yi Zhao, Qiyu Mu, Zixu Huang, Q. Tao, Fangjie Liu, Ling Wang

{"title":"Injectable hydrogels of enzyme-catalyzed cross-linked tyramine-modified gelatin for drug delivery","authors":"Yuanhan Tang, J.-F. Ding, Xun Zhou, Xintao Ma, Yi Zhao, Qiyu Mu, Zixu Huang, Q. Tao, Fangjie Liu, Ling Wang","doi":"10.1071/ch22188","DOIUrl":"https://doi.org/10.1071/ch22188","url":null,"abstract":"Enzymatically catalyzed cross-linking is a hydrogel fabrication method that generally is considered to have lower cytotoxicity than traditional chemical cross-linking methods. In order to optimize the properties of injectable hydrogels and expand their applications, an enzyme-catalyzed cross-linked injectable hydrogel was designed. The tyramine-modified gelatin (G-T) was formed into a stable injectable hydrogel by the combination of horseradish peroxidase (HRP) and hydrogen peroxide (H2O2) catalysis. 1H NMR spectroscopy was used to demonstrate the successful modification of gelatin by tyramine. The surface morphology of the prepared hydrogels was characterized jointly by atomic force microscopy (AFM) and scanning electron microscopy (SEM). Rheological tests demonstrated the tunable mechanical strength, formation kinetics, shear thinning and good self-recovery properties of the hydrogels. In addition, the hydrogels can be formed into various shapes by injection. The hydrogel network structure is complex and interlaced, as such it is suitable to encapsulate drugs for controlled release. The drug release from the prepared hydrogels followed the Peppas–Sahlin model and belonged to Fickian diffusion. This study constructed injectable hydrogels through the enzyme-catalyzed cross-linking of modified gelatin and applied the hydrogels for drug release, which is expected to expand the application in biomedical fields.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"14 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75414060","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

Retraction notice to 'A Biocompatible GdIII–Organic Framework Incorporating Polar Pores for pH-Sensitive Anti-Cancer Drug Delivery and Inhibiting Human Bone Tumour Cells' 撤回“一种生物相容性GdIII–结合极性孔的有机框架，用于ph敏感性抗癌药物传递和抑制人类骨肿瘤细胞”的通知

4区化学

Australian Journal of Chemistry Pub Date : 2023-02-28 DOI: 10.1071/chv76n2retract

Mingliang Ren, Hui Li, Hu Liu, Lei Wang, Haibo Xiang, Xianrong Zhang, Bin Yu

引用次数: 0

The effects of templates and seeds on the properties of nanosheet SAPO-34 molecular sieves and their catalytic performance in the MTO reaction 模板和种子对纳米SAPO-34分子筛性能的影响及其在MTO反应中的催化性能

IF 1.1 4区化学

Australian Journal of Chemistry Pub Date : 2023-02-28 DOI: 10.1071/ch22238

Tao Jiang, Yingzhi Bai, Lu Li, Weiwei Tai, Yujia Wang, Haiyan Wang, N. Sun

{"title":"The effects of templates and seeds on the properties of nanosheet SAPO-34 molecular sieves and their catalytic performance in the MTO reaction","authors":"Tao Jiang, Yingzhi Bai, Lu Li, Weiwei Tai, Yujia Wang, Haiyan Wang, N. Sun","doi":"10.1071/ch22238","DOIUrl":"https://doi.org/10.1071/ch22238","url":null,"abstract":"Nanoscale SAPO-34 molecular sieves were synthesized by adding different types of seed into hydrothermal synthesis systems with tetraethylammonium hydroxide (TEAOH) and triethylamine (TEA) & tetraethylammonium bromide (TEABr) as templates. The effects of different types of template and seed on the crystal structure, morphology, grain size and acidity of the molecular sieves were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), N2 isothermal adsorption–desorption and ammonia temperature-programmed desorption (NH3-TPD). The methanol-to-olefins (MTO) reaction performance of the synthesized samples was investigated in a fixed-bed reactor. The results showed that crystalline supernatant and seed soaking solution could be used as liquid seeds to assist in the synthesis of SAPO-34 molecular sieves with a lamellar structure. The yield of SAPO-34 synthesized by seed increased from 38.64 to 59.68%, and the methanol conversion rate was significantly improved as compared with that of SAPO-34 synthesized without seed. The nano-thickness of SAPO-34 synthesized with TEA&TEABr instead of TEAOH as template decreased from 100–150 to 40–50 nm, and the lifetime increased from 360 to 400 min with the original yield kept constant.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"600 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77258850","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