Palladium Nanoparticles Grafted onto Phytochemical Functionalized Biochar: A Sustainable Nanozyme for Colorimetric Sensing of Glucose and Glutathione

The devising and development of numerous enzyme mimics, particularly nanoparticles and nanomaterials (nanozymes), have been sparked by the inherent limitations imposed by natural enzymes. Peroxidase is one of the enzymes that is extensively utilized in commercial, medical, and biological application...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2023-09, Vol.28 (18), p.6676
Main Authors: Banu, Aakhila, Antony, Arnet Maria, Sasidhar, Balappa Somappa, Patil, Shivaputra A, Patil, Siddappa A
Format: Article
Language:English
Subjects:
BC-AHE@Pd
biochar
Biomass
Dextrose
Enzymes
Glucose
glutathione
H2O2 sensing
Nanoparticles
nanozyme
Palladium
Phytochemicals
Seeds
Signal transduction
Spectrum analysis
Thiols
Waste management
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Summary:The devising and development of numerous enzyme mimics, particularly nanoparticles and nanomaterials (nanozymes), have been sparked by the inherent limitations imposed by natural enzymes. Peroxidase is one of the enzymes that is extensively utilized in commercial, medical, and biological applications because of its outstanding substrate selectivity. Herein, we present palladium nanoparticles grafted on Artocarpus heterophyllus (jackfruit) seed-derived biochar (BC-AHE@Pd) as a novel nanozyme to imitate peroxidase activity en route to the rapid and colorimetric detection of H2O2, exploiting o-phenylenediamine as a peroxidase substrate. The biogenically generated BC-AHE@Pd nanocatalyst was synthesized utilizing Artocarpus heterophyllus seed extract as the reducing agent for nanoparticle formation, while the residue became the source for biochar. Various analytical techniques like FT-IR, GC-MS, FE-SEM, EDS, TEM, SAED pattern, p-XRD, and ICP-OES, were used to characterize the BC-AHE@Pd nanocatalyst. The intrinsic peroxidase-like activity of the BC-AHE@Pd nanocatalyst was extended as a prospective nanosensor for the estimation of the biomolecules glucose and glutathione. Moreover, the BC-AHE@Pd nanocatalyst showed recyclability up to three recycles without any significant loss in activity.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules28186676