Lamellar shape lead tungstate (PbWO4) nanostructures as synergistic catalyst for peroxidase mimetic activity | Zendy

Naveed Akhtar Shad | Zendy; Muhammad Munir Sajid | Zendy; Yasir Javed | Zendy; Muhammad Ikram | Zendy; Muhammad Irfan Hussain | Zendy; Somia Nawaz | Zendy; Amir Muhammad Afzal | Zendy; Syed Zajif Hussain | Zendy; Nasir Amin | Zendy; Imran Yousuf | Zendy

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Lamellar shape lead tungstate (PbWO₄) nanostructures as synergistic catalyst for peroxidase mimetic activity

Author(s) -

Naveed Akhtar Shad,

Muhammad Munir Sajid,

Yasir Javed,

Muhammad Ikram,

Muhammad Irfan Hussain,

Somia Nawaz,

Amir Muhammad Afzal,

Syed Zajif Hussain,

Nasir Amin,

Imran Yousuf

Publication year - 2020

Publication title -

materials research express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.383

H-Index - 35

ISSN - 2053-1591

DOI - 10.1088/2053-1591/ab69cf

Subject(s) - lamellar structure , tungstate , biocompatibility , materials science , substrate (aquarium) , nanoporous , nanomaterials , adsorption , nanostructure , chemical engineering , nuclear chemistry , fourier transform infrared spectroscopy , specific surface area , catalysis , nanotechnology , chemistry , organic chemistry , metallurgy , oceanography , engineering , geology

Tungstate based nanomaterials have emerged as important class in transition metal oxide. In this study, Lead tungstate (PbWO 4 ) nanostructures with lamellar morphology were prepared by hydrothermal method. The synthesized materials were characterized by XRD, SEM, FTIR, DLS, BET and PL. Nitrogen adsorption-desorption measurements indicated that the surface area of the synthesized lamellar morphology was ∼86.225 m 2 g −1 . The lamellar-like morphology showed enhanced peroxidase-like activity owing to the large surface area, higher substrate interaction and efficient electron transportation. The results indicated higher reaction velocity (V max = 13.56 × 10 −8 M s −1 ) and low Michaelis-Menten constant (km = 0.325 mM) value for nanostructures, providing evidence for higher affinity of novel structures towards the substrate and increased peroxidase-like activity. Finally, biocompatibility test was conducted by performing cytotoxicity experiments of PbWO 4 nanostructures on MTT assays.

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