Tarryn L. Botha
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View article: Evaluating the impact of ionic and nano silver on the reproductive dynamics of Macrogyrodactylus congolensis: host-dependent and independent effects
Evaluating the impact of ionic and nano silver on the reproductive dynamics of Macrogyrodactylus congolensis: host-dependent and independent effects Open
View article: Priority setting for chemicals, waste, and pollution prevention: a risk-based strategy for environmental and human health protection
Priority setting for chemicals, waste, and pollution prevention: a risk-based strategy for environmental and human health protection Open
Chemicals provide numerous benefits that support and improve the health and welfare of humans and the environment in a wide range of applications. The environmental release of chemicals, however, can result in risks to humans and the envir…
View article: Tailoring CoFe2O4-modified activated carbon with improved selectivity for electrochemical detection of paracetamol in wastewater
Tailoring CoFe2O4-modified activated carbon with improved selectivity for electrochemical detection of paracetamol in wastewater Open
A simple yet efficient electrochemical technique is capable of measuring paracetamol (PARA) in wastewater. Green activated carbon nanoparticles (AC) from pineapple peels and its bimetallic oxide composite (AC-CoFe2O4) is a choice advanced …
View article: The number of conspecific alarm substance donors notably influences the behavioural responses of zebrafish subjected to a traumatic stress procedure
The number of conspecific alarm substance donors notably influences the behavioural responses of zebrafish subjected to a traumatic stress procedure Open
View article: Exploring Silver as an Alternative Treatment for Controlling <i>Macrogyrodactylus congolensis</i> Populations
Exploring Silver as an Alternative Treatment for Controlling <i>Macrogyrodactylus congolensis</i> Populations Open
Monogeneans are ectoparasites that in high densities, can cause harm and even death to their hosts. Therefore, treatment methods are continuously evaluated. The current study aims to determine the LC50 of ionic silver and silver‐engineered…
View article: Is “Small” Safe? Exploring the Good and Bad of Nanomaterials
Is “Small” Safe? Exploring the Good and Bad of Nanomaterials Open
“Small” does not necessarily have a clear meaning… is a ball big or small? A ball might be small compared to the entire planet, but it is absolutely huge compared to tiny “nano” particles! If you look at 1 mm on a ruler, one million nanome…
View article: Sizes, Shapes, and Types of Nanomaterials
Sizes, Shapes, and Types of Nanomaterials Open
Nanomaterials are tiny particles, made by breaking down bulk products or by grouping atoms, to form small things, called nanoparticles. Nanoparticles have a size of 1–100 nm, so a person can only see them with a powerful microscope, as the…
View article: Corrigendum to <Effect of an antidepressant on aquatic ecosystems in the presence of microplastics: A mesocosm study> [Environ. Pollut. 357 (2024) 124439]
Corrigendum to [Environ. Pollut. 357 (2024) 124439] Open
View article: Effect of an antidepressant on aquatic ecosystems in the presence of microplastics: A mesocosm study
Effect of an antidepressant on aquatic ecosystems in the presence of microplastics: A mesocosm study Open
View article: Distinct Behavioural Responses of Juvenile and Adult Zebrafish to Traumatic Stress Exposure Paired with Varying Concentrations of Conspecific Alarm Substance
Distinct Behavioural Responses of Juvenile and Adult Zebrafish to Traumatic Stress Exposure Paired with Varying Concentrations of Conspecific Alarm Substance Open
View article: Distinct Behavioural Responses of Juvenile and Adult Zebrafish to Traumatic Stress Exposure Paired with Varying Concentrations of Conspecific Alarm Substance
Distinct Behavioural Responses of Juvenile and Adult Zebrafish to Traumatic Stress Exposure Paired with Varying Concentrations of Conspecific Alarm Substance Open
View article: Occurrence of selected pharmaceuticals in wastewater and sludge samples from wastewater treatment plants in Eastern Cape province of South Africa
Occurrence of selected pharmaceuticals in wastewater and sludge samples from wastewater treatment plants in Eastern Cape province of South Africa Open
The occurrence of pharmaceuticals in various wastewater treatment plants (WWTPs) and their discharge into the surface water are existing global challenges. However, such challenges are more detrimental in developing countries due to the ag…
View article: Life-threatening, high-intensity trauma- and context-dependent anxiety in zebrafish and its modulation by epinephrine
Life-threatening, high-intensity trauma- and context-dependent anxiety in zebrafish and its modulation by epinephrine Open
Trauma-related psychopathology transpires in some individuals after exposure to a life-threatening event. While aberrant adrenergic processes may contribute to this, a clear understanding of how said processes influence trauma-related cond…
View article: Influence of different functionalized CdTe quantum dots on the accumulation of metals, developmental toxicity and respiration in different development stages of the zebrafish (Danio rerio)
Influence of different functionalized CdTe quantum dots on the accumulation of metals, developmental toxicity and respiration in different development stages of the zebrafish (Danio rerio) Open
Introduction: The bioaccumulation and differential effects of cadmium tellurium quantum dot (CdTe QDs) nanomaterials with different functional groups are poorly understood in aquatic organisms. This study aimed to investigate the metal upt…
View article: Corrigendum to “Development of a GIS-based knowledge hub for contaminants of emerging concern in South African water resources using open-source software: Lessons learnt” [Heliyon 9 (1) (January 2023) Article e13007]
Corrigendum to “Development of a GIS-based knowledge hub for contaminants of emerging concern in South African water resources using open-source software: Lessons learnt” [Heliyon 9 (1) (January 2023) Article e13007] Open
[This corrects the article DOI: 10.1016/j.heliyon.2023.e13007.].
View article: Development of a GIS-based knowledge hub for contaminants of emerging concern in South African water resources using open-source software: Lessons learnt
Development of a GIS-based knowledge hub for contaminants of emerging concern in South African water resources using open-source software: Lessons learnt Open
View article: A single life-threatening stressor in juvenile zebrafish causes anxiety-like behaviour in adulthood: modulation by alpha-2A adrenoceptor agonism
A single life-threatening stressor in juvenile zebrafish causes anxiety-like behaviour in adulthood: modulation by alpha-2A adrenoceptor agonism Open
View article: Biosynthesis of ZnO nanoparticles using Melia azedarach seed extract: Evaluation of the cytotoxic and antimicrobial potency
Biosynthesis of ZnO nanoparticles using Melia azedarach seed extract: Evaluation of the cytotoxic and antimicrobial potency Open
ZnO nanoparticles (NPs) synthesized by using an aqueous extract of Melia azedarach seed are reported in this paper. The structural, morphological, compositional, and optical properties of the NPs were evaluated. A hexagonal phase with sphe…
View article: The bioaccumulation testing strategy for nanomaterials: correlations with particle properties and a meta-analysis of<i>in vitro</i>fish alternatives to<i>in vivo</i>fish tests
The bioaccumulation testing strategy for nanomaterials: correlations with particle properties and a meta-analysis of<i>in vitro</i>fish alternatives to<i>in vivo</i>fish tests Open
This meta-analysis identifies linkages between the tiers in the bioaccumulation testing strategy.
View article: Environmentally relevant lead (Pb) water concentration induce toxicity in zebrafish (Danio rerio) larvae
Environmentally relevant lead (Pb) water concentration induce toxicity in zebrafish (Danio rerio) larvae Open
View article: Effects of conventionally-treated and ozonated wastewater on mortality, physiology, body length, and behavior of embryonic and larval zebrafish (Danio rerio)
Effects of conventionally-treated and ozonated wastewater on mortality, physiology, body length, and behavior of embryonic and larval zebrafish (Danio rerio) Open
To date, micropollutants from anthropogenic sources cannot be completely removed from effluents of wastewater treatment plants and therefore enter freshwater systems, where they may impose adverse effects on aquatic organisms, for example,…
View article: Identification of a <i>POLG</i> Variant in a Family With Arrhythmogenic Cardiomyopathy and Left Ventricular Fibrosis
Identification of a <i>POLG</i> Variant in a Family With Arrhythmogenic Cardiomyopathy and Left Ventricular Fibrosis Open
View article: Acute exposure to environmentally relevant lead levels induces oxidative stress and neurobehavioral alterations in larval zebrafish (Danio rerio)
Acute exposure to environmentally relevant lead levels induces oxidative stress and neurobehavioral alterations in larval zebrafish (Danio rerio) Open
View article: Polyethylene glycol (5,000) succinate conjugate of lopinavir and its associated toxicity using Danio rerio as a model organism
Polyethylene glycol (5,000) succinate conjugate of lopinavir and its associated toxicity using Danio rerio as a model organism Open
View article: Comparison of the dietary bioavailability of copper sulphate and copper oxide nanomaterials in<i>ex vivo</i>gut sacs of rainbow trout: effects of low pH and amino acids in the lumen
Comparison of the dietary bioavailability of copper sulphate and copper oxide nanomaterials in<i>ex vivo</i>gut sacs of rainbow trout: effects of low pH and amino acids in the lumen Open
Diet is an important exposure pathway of engineered nanomaterials (ENMs) in fish, but the long duration ofin vivotoxicity tests is a barrier to hazard assessment.
View article: Dopaminergic and serotonergic modulation of social reward appraisal in zebrafish (Danio rerio) under circumstances of motivational conflict: Towards a screening test for anti-compulsive drug action
Dopaminergic and serotonergic modulation of social reward appraisal in zebrafish (Danio rerio) under circumstances of motivational conflict: Towards a screening test for anti-compulsive drug action Open
Cognitive flexibility, shown to be impaired in patients presenting with compulsions, is dependent on balanced dopaminergic and serotonergic interaction. Towards the development of a zebrafish (Danio rerio) screening test for anti-compulsiv…
View article: How toxic is a non-toxic nanomaterial: Behaviour as an indicator of effect in Danio rerio exposed to nanogold
How toxic is a non-toxic nanomaterial: Behaviour as an indicator of effect in Danio rerio exposed to nanogold Open
View article: Cytotoxicity of Ag, Au and Ag-Au bimetallic nanoparticles prepared using golden rod (Solidago canadensis) plant extract
Cytotoxicity of Ag, Au and Ag-Au bimetallic nanoparticles prepared using golden rod (Solidago canadensis) plant extract Open
View article: Sublethal Effects of Ionic and Nanogold on the Nematode<i> Caenorhabditis elegans</i>
Sublethal Effects of Ionic and Nanogold on the Nematode<i> Caenorhabditis elegans</i> Open
The nematode Caenorhabditis elegans is used as an ecotoxicological model species in both aqueous medium and solid substrates. It is easy and of low cost to maintain in the laboratory and it produces hundreds of offspring within a short per…
View article: A tool for determining maximum sustained swimming ability of selected inland fish species in an Afrotropic ecozone
A tool for determining maximum sustained swimming ability of selected inland fish species in an Afrotropic ecozone Open
Critical swimming speed (Ucrit) predicts the maximum sustained swimming velocity that various fish species are able to sustain for prolonged periods. The objective of this study was to determine the Ucrit of Afrotropic ecozone fish, determ…