The Nelson Mandela African Institution of Science and Technology

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Recent Submissions

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Mechanical and physical properties of steel fibers and banana fibers.
(PLOS One, 2026-03-05) Hepautwa, Amani; Hilonga, Askwar; Mrosso, Register; Tusekile Alfredy; Mwalusambo, Gabriel; Lesafi, Fina; Jande, Yusufu
Mechanical and physical properties of steel fibers and banana fibers.
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Raw data on forage species diversity and invasive and or forage species seedbank
(Zenodo, 2026-03-06) Ngondya, Issakwisa
Raw data on forage species diversity and invasive and or forage species seedbank
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Raw data on forage species diversity and invasive and or forage species seedbank
(Zenodo, 2026-03-06) Ngondya, Issakwisa
Raw data on forage species diversity and invasive and or forage species seedbank
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Questionnaire for Rainwater Harvesting (RWH) and Soil Moisture Conservation (SMC) Technologies in Maize Production in Babati District, Tanzania
(Zenodo, 2026-03-26) Kanyiru, Mary; Meya, Akida; Mkindi, Angela
This dataset contains the semi-structured guide for surveys, interviews and focus group discussions used to collect data on rainwater harvesting and soil moisture conservation technologies used in maize production in Babati District, Tanzania.
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Heparin-functionalized chitosan-poly(ε-caprolactone) nanoparticles loaded with quinine for selective targeting of infected erythrocytes and enhanced antiplasmodial efficacy
(Taylor & Fransic Online, 2026-04-14) Amos, Yohana; Ahmed, Rami; Sauli, Elingarami; Rubaka, Clarence; Tambwe, Mgeni; Tumbo, Anneth; Swai, Hulda; Dube, Admire
Malaria remains a major global health burden, particularly in sub-Saharan Africa. Although quinine (QN) is an effective antimalarial, its clinical application is limited by dose-dependent toxicity from nonspecific biodistribution. This study developed heparin-functionalized PCL nanoparticles (Hep-QN-PCL) to target Plasmodium falciparum-infected RBCs and enhance QN’s therapeutic efficacy. QN-loaded PCL nanoparticles were formulated using a double emulsion solvent evaporation technique, followed by chitosan-mediated heparin conjugation. They were evaluated for physicochemical properties, in vitro drug release, hemolysis, cytotoxicity, targeting, and antiplasmodial activity against FCR3 Plasmodium falciparum. Optimized Hep-QN-PCL nanoparticles (353.2 ± 16.8 nm, PDI 0.252, zeta +20.8 ± 1.9 mV, encapsulation 77.9%) showed successful Hep conjugation as confirmed through FTIR and thermal analysis, sustained QN release over 96 h via Fickian diffusion, and enhanced release under iRBC-mimicking conditions. They were hemocompatible (<4% hemolysis), less cytotoxic (LD50 >527 µg/mL vs. 195.7 µg/mL for free QN), and demonstrated increased iRBC targeting (partition 8.50 ± 0.30 vs. 4.20 ± 0.12). Hep-QN-PCL achieved ~5.3-fold higher antiplasmodial potency (IC50 = 23.33 ng/mL vs. 122.86 ng/mL) and 14.2-fold greater selectivity index (22.60 vs. 1.59). These findings demonstrate a targeted nanomedicine platform with improved efficacy and safety for malaria therapy, suitable for further preclinical studies.