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Advances in green synthesis of nanoparticles for biomedical applications: Antimicrobial, antiviral, and cancer therapies
(Elsevier BV, 2026-03)
HESAM, KAMYAB
;
Elham Khalili
;
Tayebeh Khademi
;
Ali Yuzir
;
Mohammad Mahdi Taheri
Green synthesis of nanoparticles (NPs) has garnered a considerable amount of attention lately due to its low production expenses, simplicity of manufacturing, safety, and environmental friendliness. It is a dependable method for creating a variety of nanostructures from fungal, plant, and bacterial extracts as well as hybrid materials, including metal salts. A viable and sustainable substitute for traditional synthesis methods is the green synthesis of NPs. According to recent research, NPs have very promising antiviral and antimicrobial capabilities. This article highlights the progress made in the green method for manufacturing NPs utilizing natural substances, including fruit juices, plant extracts, and other pertinent sources. A thorough understanding of these NPs' anticancer, antiviral, and antimicrobial abilities was presented. Numerous opportunities are presented by these NPs to combat potentially fatal viral and other antimicrobial diseases. This review provides readers with a grasp of the latest data and a variety of tactics for designing and developing advanced green nanomaterials using a more environmentally friendly approach. A summary is provided of the present difficulties, critical analysis, and prospects for the green synthesis of NPs as well as the potential for their innovative and successful investigation for biomedical applications.
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Emerging nanoparticle-based strategies for advanced cancer imaging and diagnosis
(Elsevier BV, 2025-10-15)
HESAM, KAMYAB
;
Elham Khalili
;
Ali Yuzir
;
Mohammad Mahdi Taheri
;
ZAMBRANO ESPINOSA, ANA KARINA
The urgent necessity for early disease diagnosis and detection continues to drive innovation in imaging techniques and contrast agents. Nanoparticle-based bioimaging offers significant potential to enhance therapeutics, treatment management, and cancer diagnostics. In both clinical practice and biomedical research, nanoparticles (NPs) can serve as labeled carriers or biomarkers for tracking immunotherapy responses, contrast-enhancing agents for improved imaging, or signal amplifiers to increase specificity and sensitivity in the visualization of cellular and molecular mechanisms in vivo. The development of advanced imaging probes with controlled biodistribution, heightened sensitivity, improved contrast, multifunctionality, and enhanced temporal and spatial resolution is made possible by the unique chemical, magnetic, and optical properties of nanomaterials. These probes are particularly beneficial, to multi-modal imaging techniques such as single-photon emission computed tomography (SPECT), positron emission tomography (PET), magnetic resonance imaging (MRI), and ultrasound (US). Finally, these characteristics contribute to clinical benefits, including personalized medicine, real-time monitoring of disease progression, AI-based design of nanoparticles (NPs) and earlier detection, addressing current limitations in oncologic imaging. This review highlights promising nanoparticle-based imaging strategies, including radiolabeled nanoparticles for dual/multimodal cancer imaging, bio-conjugated quantum dots (QDs) for in vivo and in vitro diagnosis and imaging, green-synthesized nanoparticles for cancer diagnostics, nanoparticle-enabled molecular imaging strategies for monitoring immunotherapy responses, MXene-based imaging systems, and nanoparticle-assisted image-guided therapies. Collectively, these imaging technologies present novel tools to resolve biological challenges, enhance the effectiveness of cancer treatments, and drive clinical translation, which ultimately improve patient outcomes and care.
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Effective removal of organic substances and nutrients using microgranular sludge in a sequential batch reactor
(Elsevier BV, 2024-03)
Thilagavathi Arumugham
;
Adhi Yuniarto
;
Norhayati Abdullah
;
Ali Yuzir
;
Tejraj M. Aminabhavi
Aerobic microgranular sludge was cultivated in a sequential batch reactor (SBR) under varying aerobic and anaerobic conditions with low dissolved oxygen levels to remove the nutrients and organic substances. The study employed synthetic wastewater from an actual wastewater treatment center (Kuala Lumpur, Malaysia) as the medium and initial substrate for SBR using seed sludge as the inoculum. The aerobic microgranular sludge occurred gradually over 140 days, transitioning from anaerobic to aerobic conditions. By day 105, granules with a diameter >0.3 mm constituted approximately 50 % of the total biomass, reaching the minimum threshold of 80 % biomass upon implementation of the aeration. The cultivated aerobic microgranular sludge exhibited 1.8 g/L of mixed liquor volatile suspended solids (MLVSS) and 85.11 mL/g of sludge volume index (SVI), effectively achieving low effluent concentrations of nitrogen (ammonium, phosphate, nitrate, nitrite) and chemical oxygen demand (COD). Nitrification and denitrification processes were observed with average removal efficiencies of 30.24 % for COD, 15.86 % for ammonium nitrogen, and 7.38 % for phosphate. Nitrospira genes enhanced nitrification, while Denitratisoma organisms were primarily responsible for the denitrification. A decrease in Candidatus Accumulibacter and Candidatus Competibacter led to poor phosphorus removal. Overall, the study suggests that small-sized granules demonstrate comparable efficacy to aerobic granular sludge in removing carbon, nitrogen, and phosphorus with aerobic microgranular sludge showing the potential for effective nutrient removal in wastewater treatment over extended periods.

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