Australian Journal of Chemistry
Volume 74 Number 8 2021
CH20372Evaluation of a Continuous-Flow Photo-Bromination Using N-Bromosuccinimide for Use in Chemical Manufacture
and Christian H. Hornung
Simple photo-bromination chemistry can be scaled up in a flow reactor using modern LED-based equipment, and crucially combined with in-line workup and purification. This integrated multi-stage operation provides a novel solution for the chemical manufacturing industry to use photochemistry and continuous flow reactors on an industrial scale.
CH20372 Abstract | CH20372 Full Text | CH20372PDF (748 KB) | CH20372Supplementary Material (341 KB) Open Access Article
CH21011Aptamer-Facilitated Design of Gold Nanoparticle-Based Logic Gates for Cyromazine and Melamine Detection in Milk
Three logic gates (OR, INHIBIT, and AND logic gates) were fabricated for the simultaneous detection of cyromazine and melamine by using the aptamer-facilitated design of AuNPs. With the INHIBIT gate, we could determine the presence of melamine.
CH21014The pKa of Pentazole (HN5)
, Jagannadham Vandanapu and Adam A. Skelton
Addition of every pyridine type nitrogen (= N–) to the azole ring increases the N(1)–H acidity. This idea led to determining the pKa of pentazole by graphical extrapolation. In addition to this, theoretical calculations were performed to calculate the pKa of pentazole. The pKa of pentazole estimated by different methods is reported in this article.
CH21063Effect of Single/Mixed Surfactant Systems on Orientations of Liquid Crystals and Interaction of Proteins with Surfactants at Fluid Interfaces
, Yifan He, Hong Meng, Yinmao Dong, Zhaohui Qu, Youting Liu, Shouhong Xu and Honglai Liu
The properties of surfactants affect liquid-crystal (LC) based sensors significantly. However, studies are mostly limited to single surfactant systems and rarely involve mixed surfactant systems. Mixed surfactants-decorated LC-laden interfaces show an outstanding optical response for proteins, and thus the related different mechanisms have been proposed.
CH21054Reversible Fluorescence Switching of Donor–Acceptor Type Bipyridines by Simple Protonation–Deprotonation Equilibria
and Ken-Tsung Wong
Three-level reversible fluorescence switching of donor–acceptor type bipyridine molecules by simple protonation–deprotonation equilibria is discussed with detailed analysis of the relevant steps. Site-specific protonation causes structural changes in absorbing and emitting species and their ratio, which leads to dramatic change in fluorescence.
CH21062A New Strategy Using a Fluorescent Probe Combined with Polydopamine for Detecting the Activity of Acetylcholinesterase
, Wenxia Liu, Binbin Zhang, Zhiguang Suo, Feifei Xing and Lingyan Feng
A perylene derivative-based fluorescent probe combined with polydopamine (PDA) was developed to monitor acetylcholinesterase activity. The optical signal switched off in the presence of PDA which spontaneously polymerizes from dopamine, while it was switched on in absence of PDA whose polymerization is inhibited by the hydrolysis product of acetylthiocholine catalyzed by acetylcholinesterase.
CH21040Stability, Structure, and Permeability Studies of Copper Tripeptide Species in Aqueous Solution
, Fatin M. Elmagbari, Graham E. Jackson, Giselle M. Vicatos, Raffaele P. Bonomo and Gabriele Valora
In the present study, the design of the ligand sarcosyl-l-lysyl-l-lysine (Sar-Lys-Lys) was based on the structure of human serum albumin (HSA). Sar-Lys-Lys coordinated to copper via three nitrogens to form a distorted square planar geometry.
CH21045(Difluoromethyl)trimethylsilane (TMSCHF2): A Useful Difluoromethylating Nucleophilic Source
(Difluoromethyl)trimethylsilane (TMSCHF2) is a useful difluoromethylating nucleophilic source.
