Browsing Chemistry by Title
Now showing items 10-29 of 271
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Aerosol mass and size‑resolved metal content in urban Bangkok, Thailand
(Springer, 2022)Inhalable particulate matter (PM) is a health concern, and people living in large cities such as Bangkok are exposed to high concentrations. This exposure has been linked to respiratory and cardiac diseases and cancers ... -
Alpha-glucosidase and alpha-amylase inhibitory activities, molecular docking, and antioxidant capacities of plectranthus ecklonii constituents
(MDPI, 2022)Shortage in insulin secretion or degradation of produced insulin is the principal characteristic of the metabolic disorder of diabetes mellitus (DM). However, because the current medications for the treatment of DM have ... -
Alpha-glucosidase and alpha-amylase inhibitory activities, molecular docking, and antioxidant capacities of salvia aurita constituents
(MPDI, 2020)Diabetes mellitus (DM) is one of the most dangerous metabolic diseases with a high rate of mortality worldwide. It is well known that insulin resistance and deficiency in insulin production from pancreatic β-cells are the ... -
Amorphous Pt@dCu/CNT catalyst for methanol elextrooxidation
(South African Chemical Institute (SACI), 2013)A multi-walled carbon nanotube-supported, Pt decorated nano-sized amorphous PdCu alloy cores (denoted as Pt@PdCu/CNT) catalyst with lower Pt loading is synthesized via a galvanic displacement reaction. The structure is ... -
Amphibious Horses: Beings in the Littoral and Liminal Contact Zones
(2013)Horses galloping in littoral zones are represented as embodying wildness, freedom and a prelapsarian quality. Roy Campbell’s ‘The Horses of the Camargue’ includes themes which recur in texts about littoral horses: the ... -
Analyzing chemical data in more than two dimensions: A tutorial on factor and cluster analysis
(Journal of chemical education, 1990)This tutorial is intended to introduce factor and cluster analysis at a level that will afford a senior student-and the practicing chemist, for that matter-some insights into the workings of the computer packages employing ... -
Anode materials for lithium-ion batteries: A review
(Elsevier, 2022)The need for eco-friendly and portable energy sources for application in electrical, electronic, automobile and even aerospace industries has led to an ever-increasing research and innovation in lithium-ion battery technology. ... -
Antibacterial activities of bacteria isolated from the marine sponges Isodictya compressa and Higginsia bidentifera collected from Algoa Bay, South Africa
(MDPI AG, 2017)Due to the rise inmulti-drug resistant pathogens and other diseases, there is renewed interest in marine sponge endosymbionts as a rich source of natural products (NPs). The South African marine environment is rich in ... -
Antibacterial and anti-inflammatory effects of Syzygium jambos L. (Alston) and isolated compounds on acne vulgaris
(BioMed Central, 2013)Acne vulgaris is a chronic skin disorder leading to inflammation as a result of the production of reactive oxygen species due to the active involvement of Propionibacterium acnes (P. acnes) in the infection site of the ... -
Antibacterial and photodegradation of organic dyes using lamiaceae-mediated zno nanoparticles: A review
(MDPI, 2022)The green synthesis of zinc oxide nanoparticles (ZnO NPs) using plant extracts has been receiving tremendous attention as an alternative to conventional physical and chemical methods. The Lamiaceae plant family is one ... -
Anticorrosion coated stainless steel as durable support for C-N-TiO2 photo catalyst layer
(MDPI, 2020)The development of durable photocatalytic supports resistant in harsh environment has become challenging in advanced oxidation processes (AOPs) focusing on water and wastewater remediation. In this study, stainless steel ... -
Antimicrobial activity of the secondary metabolites isolated from a South African red seaweed, laurencia corymbosa
(MDPI, 2023)South Africa’s highly diverse marine biota includes several endemic marine red algae of the Laurencia genus. Cryptic species and morphological variability make the taxonomy of Laurencia plant challenging, and a record of ... -
Application of nano zinc oxide (nZnO) for the removal of triphenyltin chloride (TPT) from dockyard wastewater
(Water Research Commission, 2014)The use of triphenyltin chloride (TPT), a persistent organic pollutant, as a biocide has led to serious contamination of the marine environment. The potential of nano zinc oxide (nZnO) for the removal of TPT from contaminated ... -
Application on gold nanoparticles-dotted 4-nitrophenylazo graphene in a label-free impedimetric deoxynivalenol immunosensor
(MDPI, 2015)In this paper, we report a new concept to construct a label-free electrochemical inhibition-based immunosensor for the detection of the mycotoxin deoxynivalenol (DON) in cereal samples. The electrochemical impedance ... -
Aptameric recognition-modulated electroactivity of poly(4-styrenesolfonic acid)-doped polyaniline films for single-shot detection of tetrodotoxin
(MDPI, 2015)The work being reported is the first electrochemical sensor for tetrodotoxin (TTX). It was developed on a glassy carbon electrodes (C) that was modified with poly(4-styrenesolfonic acid)-doped polyaniline film (PANI/PSSA). ... -
Atmospheric bromoform at Cape Point, South Africa: an initial fixed-point data set on the African continent
(EGU, 2018)Bromoform mixing ratios in marine air were measured at Cape Point Global Atmospheric Watch Station, South Africa. This represents the first such bromoform data set recorded at this location. Manual daily measurements were ... -
The behaviour of rare earth elements from South African coal fly ash during enrichment processes: wet, magnetic separation and zeolitisation
(MDPI, 2021)are earth elements (REEs) are essential raw materials in a variety of industries including clean energy technologies such as electric vehicles and wind turbines. This places an ever-increasing demand on global rare earth ... -
Binderless zeolite monoliths production with sacrificial biopolymers
(Elsevier, 2021)3D printing has emerged as an attractive way of formulating structured adsorbents, as it imparts lower manufacturing costs compared to hydraulic extrusion while also allowing for unprecedented geometric control. However, ... -
Bioaccumulation of total mercury in the earthworm Eisenia andrei
(SpringerOpen, 2016)Earthworms are a major part of the total biomass of soil fauna and play a vital role in soil maintenance. They process large amounts of plant and soil material and can accumulate many pollutants that may be present in ... -
Biosynthesis of silver nanoparticles using bitter leave (Veronica amygdalina) for antibacterial activities
(ScienceDirect, 2019)A green and facile biosynthesis of silver nanoparticles (SNPs) using dry Bitter leaves (DBL) (Vernonia amygdalina) aqueous extract as a capping and reducing agent was demonstrated in this work. The effect of the precursor's ...