Coatings based on dopamine-modified hyaluronic acid and Pluronic F127 for tracheal intubation
Chenggang Wu, Xiyi Yang, Xiaofeng Tang, Shuping Zhang - Volume 77(5) Diagram of coating a catheter surface with a dopamine-modified hyaluronic acid and Pluronic F127 lubricant.Laryngeal injury and subsequent chronic complications can result from the friction between the mucosa and the tube during intubation. Here we present a lubricant coating based on hyaluronic acid. The HD-F127 coatings have great potential in biomedical devices that require lubrication, due to their simple fabrication method and excellent lubrication properties. (Image credit: Wu Chenggang.) (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - April 19, 2024 Category: Chemistry Authors: Chenggang Wu Xiyi Yang Xiaofeng Tang Shuping Zhang Source Type: research
Surface-enhanced Raman spectroscopy (SERS) substrate based on gold nanostars & #x2013;silver nanostars for imidacloprid detection
Norhayati Abu Bakar, Joseph George Shapter - Volume 77(4) TEM images of the SERS substrates and Raman spectra of imidacloprid on their surface.This manuscript reports the first introduction of gold nanostars on silver nanostars surface as the Surface-enhanced Raman spectroscopy (SERS) active elements to increase the SERS response towards imidacloprid pesticide. This combination of two metal nanostars showed an enhancement in imidacloprid signal at low concentrations on the AuNs/AgNs surface when compared to the signal on the surface composed of a single type of metal nanostars. The substrates were shown to be stable over a...
Source: Australian Journal of Chemistry - April 4, 2024 Category: Chemistry Authors: Norhayati Abu Bakar Joseph George Shapter Source Type: research
Research on the sustainable effect of ZnS and MoS 2 decorated biochar nanocomposites for removing quinolones from antibiotic-polluted aqueous solutions
Ying-Jie Gan, Yue-hui Wang, Ya-ru Dang, Wen-jie Hao, Zheng-rong Hu, Zhi-wei Zhang, Yu-min Luo, Yan-bo Wu, Ai-jun Song, Zhong-bao Zhao - Volume 77(4) Schematic of the synthesis of ZMMBC and its use as an absorbant for quinolone antibiotics.MoS2 and ZnS modified biochar (ZMMBC) was synthesised by hydrothermal method. The removal potential of pefloxacin (PF), levofloxacin (LF) and norfloxacin (NF) was studied. It only takes 90 min for ZMMBC to reach its maximum adsorption capacity. The adsorption behaviour mainly includes complexation, pore filling, π–π interactions...
Source: Australian Journal of Chemistry - April 3, 2024 Category: Chemistry Authors: Ying-Jie Gan Yue-hui Wang Ya-ru Dang Wen-jie Hao Zheng-rong Hu Zhi-wei Zhang Yu-min Luo Yan-bo Wu Ai-jun Song Zhong-bao Zhao Source Type: research
Revisiting Staudinger and Ruzicka & #x2019;s altered pyrethrolone: the cyclopentadienone dimers derived from pyrethrin I, cinerin I and jasmolin I
Oliver E. Hutt, Jamie A. Freemont, Stella Kyi, Stuart W. Littler, Ross P. McGeary, Peter J. Duggan, John Tsanaktsidis, Helen F. Cole, Maurice G. Kerr, Elizabeth H. Krenske, John H. Ryan - Volume 77(3) Treatment of pyrethrin I, cinerin I or jasmolin I with NaOH forms cyclopentadienone dimers, isolated in 24–38% yieldsOn treatment with base, the natural pyrethrins pyrethrin I, cinerin I and jasmolin I undergo elimination to transient cyclopentadienones that dimerise to afford regioisomeric endo cycloadducts. (Image credit: J. H. Ryan.) (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - March 8, 2024 Category: Chemistry Authors: Oliver E. Hutt Jamie A. Freemont Stella Kyi Stuart W. Littler Ross P. McGeary Peter J. Duggan John Tsanaktsidis Helen F. Cole Maurice G. Kerr Elizabeth H. Krenske John H. Ryan Source Type: research
Status of rare-earth perovskite catalysts in environmental applications
Pengyun Li, Aijun Gong, Jiandi Li, Lina Qiu, Xianghai Wang, Yue Chen, Jiayi Yin, Xinyu Huang, Yifan Chen - Volume 77(3) Chart showing synthesis methods, structures, modifiers and applications of rare-earth perovskite oxidesThis paper reviews recent progress in rare-earth perovskite oxide materials, explores the effects of capacity factors, lattice defects, different metal active centers and perovskite modifications on crystal structure and applied properties, discusses the effects of synthesis processes (sol-gel, co-precipitation, microemulsion, hydrothermal, high-temperature) on their physical and chemical properties, and...
Source: Australian Journal of Chemistry - March 4, 2024 Category: Chemistry Authors: Pengyun Li Aijun Gong Jiandi Li Lina Qiu Xianghai Wang Yue Chen Jiayi Yin Xinyu Huang Yifan Chen Source Type: research
Simultaneous diversity-oriented synthesis of benzothiazoles and related diverse analogues by iodine-catalyzed intramolecular cyclization from identical substrates
Meng Cui, Xue-Lin Wang, Mengzhou Wang, Jian-Wu Xie - Volume 77(3) Synthesis scheme showing the conversion of β-ketothioamides to various benzothiazole derivatives using iodine catalystWe have developed a facile oxidative cyclization of β-ketothioamides for the simultaneous formation of a compound library similar to natural product benzothiazole derivatives, which are important structural motifs that are prevalent in both natural and designed compounds and display interesting biological and physical properties. (Image credit: M. Cui.) (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - March 4, 2024 Category: Chemistry Authors: Meng Cui Xue-Lin Wang Mengzhou Wang Jian-Wu Xie Source Type: research
Application of diglycolamide extractant in rare-earth extraction
Yiwen Wang, Aijun Gong, Lina Qiu, Yuzhen Bai, Yang Liu, Ge Gao, Weiyu Zhao - Volume 77(3) In the analytical methods for the extraction of rare-earth elements (REEs) by diglycolamide (DGA), liquid–liquid extraction experiments can demonstrate basic extraction properties, spectroscopic techniques can provide information on the inner-sphere coordination of REEIII–DGA complexes, and scattering techniques can be used to study the size and morphology of aggregates with nanoscale structures. (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - March 4, 2024 Category: Chemistry Authors: Yiwen Wang Aijun Gong Lina Qiu Yuzhen Bai Yang Liu Ge Gao Weiyu Zhao Source Type: research
Experimental and computational study of a multi-active-site Schiff base as corrosion inhibitor of mild steel in 1M HCl
Xiaolong Li, Ting Long, Qian Wu, Chuan Lai, Yue Li, Junlan Li, Boyan Ren, Keqian Deng, Chaozheng Long, Shuting Zhao - Volume 77(2) Chemical structure of Schiff base; photo of steel corrosion after treatment; graphs of physical property measurements DFT calculations and MD simulation were used to analyse the corrosion inhibition activity and mechanism of N,N′-(1,4-phenylene)bis(1,1-di(pyridin-2-yl)methanimine) (PBDPM), and the structure–activity relationship was tested. The results from SEM and water contact angle and potentiodynamic polarisation curve measurements verify the adsorption beha...
Source: Australian Journal of Chemistry - January 23, 2024 Category: Chemistry Authors: Xiaolong Li Ting Long Qian Wu Chuan Lai Yue Li Junlan Li Boyan Ren Keqian Deng Chaozheng Long Shuting Zhao Source Type: research
Transition metal element doping to optimize the photochromic properties of WO 3
Xuhui Jin, Aihua Yao - Volume 77(1) Photochromic inks and rewriting paper prepared with WO3-0.1Mo and WO3-0.1Cu.The doping of WO3 with transition metal elements significantly optimised its photochromic properties. Mo changed the colour after UV irradiation and Cu increased the fading rate of WO3. Photochromic ink and photochromic rewriting paper were prepared using the obtained photochromic powders with a cycle life of more than 50 times. (Image credit: Xuhui Jin.) (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - January 10, 2024 Category: Chemistry Authors: Xuhui Jin Aihua Yao Source Type: research
Recognising a beacon of teaching and learning leadership in Australian chemistry
This article is part of the collection: Dedication to Brian Yates. (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - January 8, 2024 Category: Chemistry Authors: Alex C. Bissember Reyne Pullen Gwendolyn A. Lawrie Source Type: research
Cobalt(II) catalytic oxidation of arylmethyl sulfonyl imines to arylcarbonyl analogues
Zetao Ma, Peipei Ma, Hongli Wu, Haifeng Gan - Volume 77(1) Chemical structures and reaction conditions for conversion of 3-arylmethyl sulfonyl imines to 3-arylcarbonyl analoguesA novel Co(OAc)2/NHPI-catalyzed oxidation of 3-arylmethyl sulfonyl imines to prepare 3-arylcarbonyl analogues has been realized. 3-Arylcarbonyl sulfonyl imines were comprehensively synthesized from benzyl substrates for the first time. The reactions proceeded in moderate to excellent yields. Mechanistic investigation suggests that alcohol compounds A are the key intermediates for the formation of products 2. (Image credit: Gan Haifeng.) (Source: Aus...
Source: Australian Journal of Chemistry - January 8, 2024 Category: Chemistry Authors: Zetao Ma Peipei Ma Hongli Wu Haifeng Gan Source Type: research
Lanthanide coordination polymers based on an aromatic dicarboxylic acid and 1,10-phenanthroline ligands: synthesis, structure and luminescence properties
Shu-Ju Wang, Yang Liu, Zhi-Qing Zhang, Qian Li, Gang Xiong, Li-Xin You, Yaguang Sun Schematic showing the complexation of 2-[(4-carboxyphenyl)methoxy]benzoic acid and 1,10-phenanthroline with various lanthanides and the resulting 2-D structure formed.Four 2-D Ln-CPs [Ln = La (1), Pr (2), Sm (3), Eu (4)] based on mixed ligands, 2-[(4-carboxyphenyl)methoxy]benzoic acid (H2cob) and 1,10-phenanthroline (phen), were prepared and characterized. Complexes 3 and 4 show luminescence of the trivalent lanthanides. (Image credit: Lixin You.) (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - December 12, 2023 Category: Chemistry Authors: Shu-Ju Wang Yang Liu Zhi-Qing Zhang Qian Li Gang Xiong Li-Xin You Yaguang Sun Source Type: research
A novel ratiometric fluorescent sensor based on terpyridine derivatives for Zn 2+ in aqueous solution
Qinghong Bai, Yangming Jiang, Enming Hu, Libin Lv, Chenghui Wang, Xin Xiao Schematic representation of zinc ion binding to terpyridine probe producing solution color change from blue to yellowWe designed and synthesized a new fluorescent probe G based on 4-bromobenzaldehyde, CH3I and 4-vinylpyridine. Probe G formed a 1 : 1 complex with Zn2+ that produced a large fluorescence enhancement and a red shift of ~95 nm. Under ultraviolet light, on addition of Zn2+, the fluorescent color of probe G changed from blue to yellow. The tripy...
Source: Australian Journal of Chemistry - November 23, 2023 Category: Chemistry Authors: Qinghong Bai Yangming Jiang Enming Hu Libin Lv Chenghui Wang Xin Xiao Source Type: research
Approach to achieve controlled particle size synthesis of non-polar functionalised siloxane particles using a one-pot synthesis
Rowan McDonough, Daniel Mangos, Chris Hassam, Jonathan Campbell, David A. Lewis Flow chart of two one-pot methods for silica nanoparticle synthesis from functionalised silanesA scalable methodology that allows particles based on trialkoxy siloxanes with non-polar substituents to be synthesised in a one-pot reaction through the controlled addition of the reactants is reported. By dispersing the trialkoxy silane precursor prior to addition to the reaction solution, excellent control of particle size and dispersity can be achieved for systems not normally compatible with Stober methods. (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - October 20, 2023 Category: Chemistry Authors: Rowan McDonough Daniel Mangos Chris Hassam Jonathan Campbell David A. Lewis Source Type: research
The synthesis and manipulation of certain Diels & #x2013;Alder adducts of levoglucosenone and iso-levoglucosenone
Brett Pollard, Xin Liu, Luke A. Connal, Martin G. Banwell, Michael G. Gardiner Structural formulae of levoglucosenone and its pseudo-enantiomer iso-levoglucosenone.In the pursuit of new monomers for the sustainable production of polymers, the biomass-derived and platform molecule levoglucosenone (LGO, 1) as well as the pseudo-enantiomeric compound iso-levoglucosenone (iso-LGO, 3) were engaged in a series of Diels–Alder cycloaddition reactions with a range of cyclic dienes. Various manipulations of the resulting adducts provided new monomeric systems likely to be suitable for polymerisation. (Source: Austral...
Source: Australian Journal of Chemistry - October 10, 2023 Category: Chemistry Authors: Brett Pollard Xin Liu Luke A. Connal Martin G. Banwell Michael G. Gardiner Source Type: research
