Publications by authors named "Sana Jawaid"
Article Synopsis
- - The study tackles the issue of interfacial charge-carrier recombination, which hampers the progress of photoelectrochemical (PEC) biosensors used in wearable clinical electronics by developing a highly efficient photoactive heterojunction for detecting CD44 proteins.
- - It combines BiVO with conductive 2D-TiCT nanosheets to create a heterojunction that promotes fast charge transfer and reduces recombination, improving the biosensor's photocatalytic activity and sensitivity.
- - The biosensor successfully detects CD44 proteins by measuring changes in photo-oxidation current with a low detection limit, and it shows good antifouling properties, making it reliable for use with real blood serum samples.
Conjugated linoleic acid (CLA) has attracted as novel type of fatty acids having unusual health-promoting properties such as anticarcinogenic and antiobesitic effects. The present work employed castor oil as substrate for one-pot production of CLA using washed cells of Lactobacillus plantarum (L. plantarum) and lipases as catalysts.
View Article and Find Full Text PDFThis study describes sensitive determination of atropine using glassy carbon electrodes (GCE) modified with CoO nanostructures. The as-synthesised nanostructures were grown using cysteine (CYS), glutathione (GSH) and histidine (HYS) as effective templates under hydrothermal action. The obtained morphologies revealed interesting structural features, including both cavity-based and flower-shaped structures.
View Article and Find Full Text PDFIn the present study, milk samples including raw and ultra-high temperature (UHT) processed milk were analyzed for pesticide residue levels, including five pesticides, viz chloripyrifos, endosulfan (α and β), profenofos and bifenthrin by gas chromatography microelectron capture detector (GC-μECD) after extraction by QuEChERS method. Further confirmation of the pesticide residue was done by GC-MS. The pesticide residual level in raw and UHT milk samples (n = 70) was determined in the range of 0.
View Article and Find Full Text PDFArticle Synopsis
- Aflatoxin M1 (AFM1) is a harmful substance found in milk due to lactating animals consuming contaminated feed, and the study focused on its presence in milk from Sindh, Pakistan.
- In the investigation, 96.43% of milk samples tested positive for AFM1, with an average contamination level of 0.38 μg/L, surpassing safety limits set by both the European Commission and U.S. regulations.
- The estimated daily intake of AFM1 for adults was found to be 3.1 ng/kg of body weight, raising concerns about potential health risks.
Melamine is a nitrogenous chemical substance used principally as a starting material for the manufacture of synthetic resins. Due to its very high proportion of nitrogen melamine has been added illegitimately to foods and feeds to increase the measured protein content, which determines the value of the product. These issues prompted private as well as governmental laboratories to develop methods for the analysis of melamine in a wide variety of food products and ingredients.
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