A5008475118- Heavy Metal Exposure and Toxicity
- Recycling and Waste Management Techniques
- Heavy metals in environment
- Enzyme-mediated dye degradation
- Dye analysis and toxicity
- Synthesis and Reactions of Organic Compounds
- Healthcare and Environmental Waste Management
- Nonlinear Optical Materials Research
- Dyeing and Modifying Textile Fibers
- Chromium effects and bioremediation
- Inorganic and Organometallic Chemistry
- Synthesis and biological activity
- Nanoparticles: synthesis and applications
- Plant Pathogens and Fungal Diseases
- Multicomponent Synthesis of Heterocycles
- Microbial Metabolism and Applications
- Municipal Solid Waste Management
University of Karachi
2016-2024
In this study, a copper-containing polyphenol oxidase (PPO) enzyme was extracted from the selected agricultural food products, i.e. , Mangifera indica (L.), Solanum tuberosum and Luffa cylindrica which has efficiently degraded azo dyes (Methylene blue, Reactive Black-5, Toluidine Blue-O) into less toxic compounds. After preparing dye solution at various concentrations, PPO enzymes with phosphate buffer were incubated it for 2 hours. The percentage of decolorization estimated by using...
Abstract Children’s plastics toys maybe contain toxic metals to which infants and young children can be orally exposed may pose acute or chronic adverse health effects. The objectives of this research were evaluate the total metal concentrations (TMCs) Pb, Cd, Cr, Ni, Zn, Cu, Mn in children’s plastic Toys Bought local markets Karachi, Pakistan, compared TMCs different regulatory limits. Total 44 sourced Karachi had analyzed by an atomic absorption spectrophotometer for heavy contaminations....
The concentrations of Cd, Cr, Cu, Fe, Ni, Pb, & Zn were determined in the samples soil, dismantling dust and rubber collected from electronic waste dumping site Shershah market Local Karachi city Pakistan. e-waste sites toxicity not conducted before using modern techniques. subsequent data heavy metals concentration obtained Atomic Absorption Spectrometry (AAS), Scanning Electron Microscopy (SEM), Wavelength Dispersive- X-Ray Fluorescence (WD-XRF). found as 133.17, 104.53 113.26 whereas...