首页|Dye degradation, antibacterial activity and molecular docking analysis of cellulose/polyvinylpyrrolidone-doped cadmium sulphide quantum dots

Dye degradation, antibacterial activity and molecular docking analysis of cellulose/polyvinylpyrrolidone-doped cadmium sulphide quantum dots

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? 2022 Elsevier B.V.In present study, control sized cadmium sulphide (CdS) quantum dots (QDs) and cellulose nanocrystals grafted polyvinylpyrrolidone (CNC-g-PVP) doped CdS QDs were synthesized via co-precipitation. The suggested pathway is fruitful in throwing out organic pollutants like methylene blue (MB) from industrial water and bactericidal applications. A series of characterization techniques were used to determine the structural, optical and morphological qualities of prepared samples. The X-ray diffraction (XRD) pattern verified hexagonal structure with no significant change occurring in the spectrum upon doping (2, 4, and 6 %). The UV–vis spectrophotometer describes blueshift in absorption pattern, resulting in an increase in band gap energy (Eg) upon doping. Catalytic activity (CA) against MB in basic and neutral medium demonstrated remarkable results compared with the acidic medium. Furthermore, bactericidal potential of doped sample (6 %) exhibited the significantly higher inhibition zones of 5.25 mm and 4.05 mm against Staphylococcus aureus (S. aureus) or Gram-positive (G+ve) and Escherichia coli (E. coli) or Gram-negative (G-ve), respectively. In silico predictions for these doped QDs were performed against selected enzyme targets (i.e. DNA gyrase and FabI) to unveil the mystery governing these bactericidal activities.

Catalytic activityCo-precipitationQuantum dots

Shahzadi I.、Rafique A.、Ikram M.、Haider A.、Ul-Hamid A.、Naz S.、Haider J.、Nabgan W.

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Punjab University College of Pharmacy University of the Punjab

Solar Cell Applications Research Lab Department of Physics Government College University Lahore

Department of Clinical Sciences Faculty of Veterinary and Animal Sciences Muhammad Nawaz Shareef University of Agriculture

Core Research Facilities King Fahd University of Petroleum & Minerals

Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences

Departament d'Enginyeria Química Universitat Rovira i Virgili

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2022

International Journal of Biological Macromolecules

International Journal of Biological Macromolecules

EIISTP
ISSN:0141-8130
年,卷(期):2022.214
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