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Papers
39 resultsShowing papers from Taif University
ClearRole of nutraceutical against exposure to pesticide residues: power of bioactive compounds
This review explores how nutraceuticals, which are health-promoting compounds found in foods like fruits, vegetables, and spices, might help protect the body against damage from pesticide exposure. The bioactive compounds, including antioxidants and polyphenols, can support detoxification and repair cellular damage caused by environmental toxins. While focused on pesticides, this approach is relevant to microplastic exposure because microplastics carry pesticides and other chemicals into the body, and dietary interventions could potentially help mitigate some of their harmful effects.
Enhancing microplastics biodegradation during composting using livestock manure biochar
Researchers tested whether adding livestock manure biochar to composting systems could enhance the breakdown of biodegradable microplastics. They found that biochar significantly accelerated the decomposition of polyhydroxyalkanoate microplastics by enriching beneficial microbial communities and improving composting conditions. The study suggests that biochar-enhanced composting could be a practical strategy for reducing biodegradable microplastic contamination in organic waste.
Synthesis of MOF-derived Mn-doped ZnO nanostructures for efficient removal of microplastic from wastewater
Polymer-based nanocarriers for biomedical and environmental applications
This review covers the fabrication, design, and applications of polymer-based nanocarriers in biomedical and environmental fields. The study highlights their use in targeted drug delivery and cancer therapy, as well as their ability to remove heavy metals and contaminants from air and water, while noting current challenges for future development.
Microplastics pollution in salt pans from the Maheshkhali Channel, Bangladesh
Researchers analyzed sea salt samples from eight salt pans in the Maheshkhali Channel of Bangladesh and found microplastic contamination in every sample, with concentrations ranging from 78 to 137 particles per kilogram. Fragments were the most common type, and the dominant polymers identified were terephthalate, polypropylene, polyethylene, and polystyrene. The findings highlight that sea salt represents a potentially significant route of human dietary exposure to microplastics.
Perspective on the Therapeutic Applications of Algal Polysaccharides
Researchers reviewed the extraction, structural properties, and therapeutic bioactivities of algal polysaccharides — complex carbohydrates from marine and freshwater algae — summarizing evidence for their anticancer, antiviral, antidiabetic, and immunomodulatory effects and identifying knowledge gaps needed to develop them as pharmaceuticals.
Biosynthesis and Characterization of Extracellular Silver Nanoparticles from Streptomyces aizuneusis: Antimicrobial, Anti Larval, and Anticancer Activities
Researchers synthesized silver nanoparticles from Streptomyces aizuneusis and demonstrated their antimicrobial, anti-larval, and anticancer activities, contributing to the development of eco-friendly green nanotechnology approaches.
Silica Nanoparticle Acute Toxicity on Male Rattus norvegicus Domestica: Ethological Behavior, Hematological Disorders, Biochemical Analyses, Hepato-Renal Function, and Antioxidant-Immune Response
Researchers assessed the acute toxicity of silica nanoparticles in male rats, finding significant hematological disorders, liver and kidney damage, oxidative stress, and immune system disruption at higher doses after 24 and 96 hours of exposure.
Herbal plants- and rice straw-derived biochars reduced metal mobilization in fishpond sediments and improved their potential as fertilizers
Researchers applied biochars derived from herbal plants and rice straw to fishpond sediments contaminated with copper, chromium, and zinc, finding that herb-derived biochar (TMBC) most effectively reduced metal concentrations in pore water and leachate while improving macronutrient content, supporting sediment reuse as agricultural fertilizer.
An assessment of micro- and nanoplastics in the biosphere: A review of detection, monitoring, and remediation technology
Investigating microplastics and potentially toxic elements contamination in canned Tuna, Salmon, and Sardine fishes from Taif markets, KSA
Microplastics were detected in seven brands of commercially canned tuna, salmon, and sardine from Taif markets in Saudi Arabia using FTIR analysis, with various polymer types identified alongside potentially toxic elements including heavy metals in the fish tissue.
Separate and Simultaneous Effects of Silver Nanoparticles and Arsenic on the Taxonomic Diversity of Free-Living Marine Nematodes
Researchers found that silver nanoparticles and arsenic individually reduced abundance and diversity of marine nematode communities at high concentrations, but when combined, their toxicity was often attenuated, likely due to physical bonding between the two contaminants.
Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification
Researchers used satellite imagery and laboratory analysis to study nanoparticle pollution in Cartagena Bay, Colombia, across wet and dry seasons. The study found significant seasonal variation in suspended sediments, chlorophyll, and pollution levels, with advanced microscopy revealing the presence of terrestrial nanoparticles in bay sediments that could affect marine ecosystems.
Magnetite/MXene (Fe3O4/Ti3C2) Nanocomposite as a Novel Adsorbent for Environmental Remediation of Malachite Green Dye
Researchers developed a novel magnetite/MXene nanocomposite adsorbent for removing malachite green dye from water. The material showed effective adsorption properties and could be magnetically separated after use, demonstrating potential as an environmental remediation tool for organic pollutants in contaminated water sources.
The protective efficacy of dual dietary rosemary plus cinnamon mix against lead nitrate-induced immune suppression, genotoxicity, and oxidant/antioxidant status in Nile tilapia fingerlings
Researchers tested whether a dietary mix of rosemary and cinnamon could protect Nile tilapia from the harmful effects of lead exposure. Fish exposed to lead showed reduced growth, suppressed immunity, increased oxidative stress, and DNA damage, but those fed the herbal supplement showed significant improvements across all measures. The study suggests that rosemary and cinnamon supplementation may help mitigate heavy metal toxicity in farmed fish.
Polystyrene microplastics impact on cardiac and pulmonary physiology and microenvironment in a mouse model: Role of taurine supplementation and molecular docking insights
Researchers investigated the effects of polystyrene microplastics on heart and lung tissues in mice and found that exposure disrupted antioxidant defenses, increased lipid peroxidation, and elevated cardiac injury markers and pro-inflammatory cytokines. Microplastic exposure also upregulated inflammatory and pyroptotic gene expression in both tissues. Co-administration of taurine significantly ameliorated these alterations, suggesting it may offer protective effects against microplastic-induced cardiopulmonary damage.
UV‑driven surface oxidation of PVC microplastics and their interaction with emerging pollutants
Comparative Photo‐Induced Aging of Poly(Butylene Adipate‐co‐Terephthalate) and Polystyrene Microplastics and their Divergent Affinities for Tetracycline in Aquatic Environments
Researchers UV-aged biodegradable PBAT and conventional polystyrene microplastics in river water for 30 days, finding that aging caused surface oxidation in PBAT while polystyrene showed minimal change, and that the two types had divergent affinities for adsorbing tetracycline.
Equilibrium and Kinetic Modeling of Crystal Violet Dye Adsorption by a Marine Diatom, Skeletonema costatum
Researchers evaluated the marine diatom Skeletonema costatum as a biosorbent for removing crystal violet dye from water, achieving 98% adsorption efficiency under optimized conditions of pH 3 and 0.4 g of biomass. Adsorption followed Langmuir isotherm and pseudo-second-order kinetics, supporting its potential as a low-cost, natural water treatment material.
Artificial Intelligence-Based Robotic Technique for Reusable Waste Materials
This paper describes an AI-based robotic arm system that uses a customized deep learning model to classify and sort waste materials including plastics and cartons by material type for automated recycling. The integrated system combines gripping, motion control, and AI-driven material classification into a full-automation architecture for waste recovery.
Delineating Groundwater Recharge Potential through Remote Sensing and Geographical Information Systems
This study examined the effects of weathered polystyrene microplastics on the feeding rate and reproduction of the copepod Acartia tonsa, finding that weathered particles caused greater reductions in egg production than pristine particles at equivalent concentrations. Surface chemistry changes during aging appear to increase biological potency.
DNA Methylation Biomarkers-Based Human Age Prediction Using Machine Learning
A machine learning model was developed to predict biological age from DNA methylation biomarkers, demonstrating performance applicable to both healthy individuals and disease cohorts. The study contributes to the growing field of epigenetic aging clocks with potential applications in assessing environmental health impacts and disease risk.
Preliminary screening of microplastic contamination in different marine fish species of Taif market, Saudi Arabia
Microplastic contamination was screened in 22 marine fish species from Taif market in Saudi Arabia, using KOH digestion and Nile red staining to detect particles in gills and muscle tissue across species with different marine habitats and feeding behaviors.
Recent developments in microbial degradation of polypropylene: Integrated approaches towards a sustainable environment
This review covers recent advances in microbial degradation of polypropylene, summarizing bacterial strains, enzyme systems, and environmental conditions that facilitate breakdown of this highly persistent polymer. The authors discuss integrated biotechnological approaches combining physical pretreatment with microbial activity as a pathway toward more effective polypropylene biodegradation.