Browsing by Author "Kajal Kumari"

Now showing 1 - 2 of 2

Complications and Imaging Considerations with Cancer Treatment
(Springer Science+Business Media, 2025) Shivi Jain; Kajal Kumari; Ashish Verma
Advancements in cancer treatment have improved survival rates for children, but all therapies carry the risk of toxic effects, impacting various organ systems. Radiologists play a key role in identifying these complications, which can arise during diagnosis, initial treatment, or after therapy completion. Early complications include oncologic emergencies like superior vena cava syndrome, metabolic disturbances, and infections. Later effects include leukoencephalopathy, cataracts, cardiomyopathy, hepatic fibrosis, renal dysfunction, scoliosis, hypothyroidism, and secondary malignancies. Awareness of these issues enhances patient surveillance and timely intervention, improving long-term outcomes and quality of life. © 2025 The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Photocatalytic and Antibacterial NiO/MgO Nanocomposites for Efficient Dyes Removal From Industrial Wastewater
(John Wiley and Sons Inc, 2025) Anuradha Kumari; Annesha Roy; Manjot Kaur; Akshay Kumar; Kajal Kumari; Usha Singh Gaharwar; Atul Kumar Tiwari; Ramovatar Meena
The presence of non-biodegradable industrial waste, particularly dyes, has led to pollution of aquatic ecosystems. Consequently, it is crucial to devise effective strategies to remove industrial contaminants. This study focused on creating nanomaterials for wastewater treatment. NiO/MgO nanocomposites (NCs) were produced via chemical precipitation and subsequently characterized. X-ray diffraction (XRD) verified the crystalline nature of NiO/MgO with a face-centered cubic (FCC) structure, which promoted strong interfacial interactions. Scanning electron microscopy (SEM) showed that the NiO/MgO NCs agglomerated into spherical and irregular shapes, whereas transmission electron microscopy (TEM) confirmed a size range of 65–100 nm. UV–vis spectroscopy indicated absorption in the UV–vis spectrum, suggesting its photocatalytic potential. The photocatalytic performance of the NiO/MgO NCs was assessed for organic dyes such as methylene blue (MB), Congo red (CR), and methyl orange (MO) under UV–vis light, demonstrating notable efficiency at higher dye concentrations. The highest degradation efficiency was recorded for CR (∼77% at 100 ppm over 60 min), followed by MO (∼71.6%) and MB (∼70%). The enhanced photocatalytic activity was linked to the nanostructured morphology, effective charge separation, and decreased electron-hole recombination. NiO/MgO NCs also showed strong antibacterial properties against both gram-positive and gram-negative bacterial strains. Antimicrobial mechanisms include the production of reactive oxygen species (ROS), disruption of membranes, and interactions with metal ions, which demonstrate the multi-functionality of NiO/MgO NCs as efficient wastewater treatment agents. © 2025 Wiley-VCH GmbH.