Research Article
Characterization and Risk Evaluation of Heavy Metals in Niakhene Soils Using X-ray Fluorescence
Issue:
Volume 13, Issue 2, June 2025
Pages:
28-34
Received:
23 May 2025
Accepted:
7 June 2025
Published:
10 July 2025
Abstract: Heavy metal contamination in soils poses serious threats to environmental and human health due to metal persistence and toxicity. In Senegal, particularly in the Niakhene region, soil pollution may result from agricultural practices, atmospheric deposition, and past land use. This study aims to determine the concentrations of heavy metals: Nickel (Ni), Arsenic (As), Zinc (Zn), Cesium (Cs), Palladium (Pd), and Tin (Sn) in agricultural soils and to assess their potential environmental and health risks. A total of 47 soil samples were collected at two depths (0–20 cm and 20–40 cm) and analyzed using energy-dispersive X-ray fluorescence (ED-XRF) spectroscopy, a non-destructive and accurate technique. The analysis revealed varying concentrations of heavy metals, with Zn ranging from 0.00 to 29.49 mg/kg, Ni from 20.02 to 47.30 mg/kg, and Arsenic (As) from 0.00 to 5.67 mg/kg. The study found that Cd, Cu, Pb, and Hg were not detectable in the samples. Comparative analysis with EU threshold limit values (TLVs) indicated that concentrations of most metals were within safe limits, although some samples approached the maximum contaminant levels (MCLs) for Nickel and Arsenic. The findings highlight the need for ongoing monitoring and potential remediation to manage soil contamination and protect environmental and human health. These findings highlight the importance of continuous soil monitoring in the region and support the implementation of appropriate soil management and pollution mitigation strategies to safeguard both environmental quality and public health.
Abstract: Heavy metal contamination in soils poses serious threats to environmental and human health due to metal persistence and toxicity. In Senegal, particularly in the Niakhene region, soil pollution may result from agricultural practices, atmospheric deposition, and past land use. This study aims to determine the concentrations of heavy metals: Nickel (...
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Research Article
Biobased Nanomaterials in Drug Delivery System: Current Trends and Future Prospectives
Alebachew Molla*
Issue:
Volume 13, Issue 2, June 2025
Pages:
35-46
Received:
15 June 2025
Accepted:
1 July 2025
Published:
4 August 2025
DOI:
10.11648/j.nano.20251302.12
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Abstract: Biobased nanomaterials have emerged as a transformative platform in drug delivery systems, offering significant advantages such as biocompatibility, biodegradability, and reduced toxicity compared to conventional synthetic nanocarriers. This review comprehensively explores current trends in the synthesis, functionalization, and application of biobased nanomaterials including polysaccharides, proteins, lipid-based carriers, dendrimers, and green-synthesized metallic nanoparticles in enhancing targeted and controlled drug delivery. Advances in surface modification techniques and stimuli-responsive designs have improved site-specific drug release and therapeutic efficacy, while combination therapies leveraging biobased nanocarriers address challenges like multidrug resistance. Pulmonary and personalized medicine applications highlight their versatility in achieving localized delivery and tailoring treatments to individual patient profiles. Despite challenges in large-scale production, stability, and regulatory approval, ongoing innovations in green synthesis, multifunctionality, and nanocarrier optimization position biobased nanomaterials to revolutionize drug delivery. Their integration into next-generation therapeutics promises improved clinical outcomes and a sustainable approach to precision medicine. This review emphasizes the eco-friendly, biocompatible, and biodegradable nature of biobased nanomaterials, addressing the urgent need for safer and more sustainable drug delivery platforms in modern medicine.
Abstract: Biobased nanomaterials have emerged as a transformative platform in drug delivery systems, offering significant advantages such as biocompatibility, biodegradability, and reduced toxicity compared to conventional synthetic nanocarriers. This review comprehensively explores current trends in the synthesis, functionalization, and application of bioba...
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