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Binding interaction study on human serum albumin with bactericidal gold nanoparticles synthesized from a leaf extract of Musa balbisiana: a multispectroscopic approach

This study describes the eco‐friendly, low‐cost and room‐temperature synthesis of gold nanoparticles from Musa balbisiana leaf extract, which acts as both reducing and stabilizing agent, and characterized by ultraviolet−visible (UV–vis) light spectroscopy, fourier transform infrared (FTIR) spectrosc...

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Published in:Luminescence (Chichester, England) England), 2019-09, Vol.34 (6), p.563-575
Main Authors: Maji, Anukul, Beg, Maidul, Das, Somnath, Sahoo, Nandan Kumar, Jha, Pradeep K., Islam, Md. Maidul, Hossain, Maidul
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description This study describes the eco‐friendly, low‐cost and room‐temperature synthesis of gold nanoparticles from Musa balbisiana leaf extract, which acts as both reducing and stabilizing agent, and characterized by ultraviolet−visible (UV–vis) light spectroscopy, fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FE‐SEM), analytical transmission electron microscopy (TEM), energy‐dispersive X‐ray spectroscopy (EDAX) and dynamic light scattering (DLS) instruments. These nanoparticles showed an average diameter of 33.83 ± 3.39 nm, which was confirmed from the size distribution histogram. The bactericidal activity of these nanoparticles was confirmed using bacteria Escherichia coli and Staphylococcus aureus at 1 and 2 nM minimum inhibitory concentrations, respectively. The interaction between nanoparticles and human serum albumin (HSA) was investigated, as this plays significant roles in biological systems. The nature of interaction, binding parameters and structural variation of HSA in the presence of these nanoparticles have been evaluated using several useful spectroscopic approaches such as UV–vis, FTIR, time‐resolved and steady‐state fluorescence, and circular dichroism in addition to the measurement of zeta potential. This interaction study revealed that static quenching occurs in this process with minimal alteration in the secondary structure, but the native structure of HSA remained unaltered. The binding constant and thermodynamic parameters of this interaction process were also evaluated.
doi_str_mv 10.1002/bio.3639
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Maidul</creatorcontrib><creatorcontrib>Hossain, Maidul</creatorcontrib><title>Binding interaction study on human serum albumin with bactericidal gold nanoparticles synthesized from a leaf extract of Musa balbisiana: a multispectroscopic approach</title><title>Luminescence (Chichester, England)</title><addtitle>Luminescence</addtitle><description>This study describes the eco‐friendly, low‐cost and room‐temperature synthesis of gold nanoparticles from Musa balbisiana leaf extract, which acts as both reducing and stabilizing agent, and characterized by ultraviolet−visible (UV–vis) light spectroscopy, fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FE‐SEM), analytical transmission electron microscopy (TEM), energy‐dispersive X‐ray spectroscopy (EDAX) and dynamic light scattering (DLS) instruments. These nanoparticles showed an average diameter of 33.83 ± 3.39 nm, which was confirmed from the size distribution histogram. The bactericidal activity of these nanoparticles was confirmed using bacteria Escherichia coli and Staphylococcus aureus at 1 and 2 nM minimum inhibitory concentrations, respectively. The interaction between nanoparticles and human serum albumin (HSA) was investigated, as this plays significant roles in biological systems. The nature of interaction, binding parameters and structural variation of HSA in the presence of these nanoparticles have been evaluated using several useful spectroscopic approaches such as UV–vis, FTIR, time‐resolved and steady‐state fluorescence, and circular dichroism in addition to the measurement of zeta potential. This interaction study revealed that static quenching occurs in this process with minimal alteration in the secondary structure, but the native structure of HSA remained unaltered. 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ispartof Luminescence (Chichester, England), 2019-09, Vol.34 (6), p.563-575
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subjects Albumin
Albumins
Analytical methods
Anti-Bacterial Agents - chemical synthesis
Anti-Bacterial Agents - chemistry
Anti-Bacterial Agents - pharmacology
Bacteria
Bactericidal activity
bactericidal property
Binding
Circular Dichroism
Dichroism
E coli
Electron microscopy
Emission analysis
Energy transmission
Escherichia coli - drug effects
Field emission microscopy
Field emission spectroscopy
Fluorescence
fluorescence studies
Fourier transforms
Gold
Gold - chemistry
Gold - pharmacology
Histograms
Human serum albumin
Humans
Infrared analysis
Infrared spectroscopy
Instruments
Interaction parameters
Leaves
Light scattering
Mathematical analysis
Metal Nanoparticles - chemistry
MGNs synthesis
MGNs–HSA conjugate
Microscopy
Musa - chemistry
Musa balbisiana
Nanoparticles
Parameters
Particle Size
Photon correlation spectroscopy
Plant extracts
Plant Extracts - chemistry
Plant Leaves - chemistry
Process parameters
Protein Binding
Protein structure
Scanning electron microscopy
Secondary structure
Serum
Serum albumin
Serum Albumin, Human - chemistry
Size distribution
Spectrophotometry, Ultraviolet
Spectroscopy
Spectroscopy, Fourier Transform Infrared
Spectrum analysis
Stabilizers (agents)
Stabilizing
Staphylococcus aureus - drug effects
Transmission electron microscopy
Ultraviolet radiation
Zeta potential
title Binding interaction study on human serum albumin with bactericidal gold nanoparticles synthesized from a leaf extract of Musa balbisiana: a multispectroscopic approach
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