4.7 Article

Adsorption behaviour on silver nanocolloids at various concentrations of a bioactive therapeutic derivative of methylhydrazine: Experimental, DFT and molecular docking investigations

Journal

JOURNAL OF MOLECULAR LIQUIDS
Volume 385, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.molliq.2023.122312

Keywords

DFT; SERS; Silver nano colloid; Hydrazine carboxamide; Cholinesterases

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A detailed theoretical and experimental study was conducted on a novel bioactive molecule, 2-(3-bromobenzoyl)-N-methylhydrazine-1-carboxamide (BMC). The study investigated the adsorption of BMC on silver hydrosols using Density Functional Theory (DFT), Time Dependent (TD) DFT, and Surface Enhanced Raman Scattering (SERS). The results showed that the adsorption of BMC on Ag6 involved chemisorption and exhibited orientation changes and a tilted orientation with the metal. Additionally, molecular docking experiments revealed that BMC-Ag6 had high binding scores and could serve as a drug delivery vehicle.
A detailed theoretical and experimental study was implemented on a novel bioactive molecule 2-(3-bromobenzoyl)-N-methylhydrazine-1-carboxamide (BMC). Density Functional Theory (DFT), Time Dependent (TD)DFT and Surface Enhanced Raman Scattering (SERS) studies were reported for the adsorption of BMC on silver hydrosols. SERS at various concentrations are discussed and there are orientation changes for BMC with concentration and BMC assumes a tilted orientation with the metal. The adsorption energy of BMC is -64.41 kcal/ mol when adsorbed with Ag6, pointing to a chemisorption process. TD-DFT predicts a Ultraviolet (UV)-vis absorption of 595.11 when BMC adsorbed on Ag6, while that of BMC is 276.12 nm and the redshift, lowered intensity in UV spectra, caused by the aggregation of colloidal silver nano particles, was used to establish the adsorption of BMC on Ag6. Molecular docking is performed on BMC and BMC-Ag6 to find their ability to bind to target proteins, IP0I (human butyrylcholinesterase) and 4PQE (human acetylcholinesterase) and drug likeness properties are also assessed. The binding scores are high for BMC-Ag6 and hence the Ag6 will perform as a drug delivery vehicle.

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