In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra

Abstract Plant phytochemicals play an immense role in the synthesis of metal nanoparticles, and the quality of phytochemicals used in the synthesis depends on the extraction method, solvent, temperature, etc. An extensive number of studies were carried out on the extraction of phytochemicals using a...

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Main Authors: Abhinash Marukurti, Alavala Matta Reddy, Pangi Vijaya Nirmala, Dasari Kalyani, K. Ramaneswari, I. J. N. Padmavathi, L. Pradeepthi Pemmaraju, Gotham Samuel Silvanus, Buddha Sai Keerthana, Shaik Farhana, D. Ramachandran, B. Mallikarjuna, Phanindra Babu Kasi
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-14353-w
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author Abhinash Marukurti
Alavala Matta Reddy
Pangi Vijaya Nirmala
Dasari Kalyani
K. Ramaneswari
I. J. N. Padmavathi
L. Pradeepthi Pemmaraju
Gotham Samuel Silvanus
Buddha Sai Keerthana
Shaik Farhana
D. Ramachandran
B. Mallikarjuna
Phanindra Babu Kasi
author_facet Abhinash Marukurti
Alavala Matta Reddy
Pangi Vijaya Nirmala
Dasari Kalyani
K. Ramaneswari
I. J. N. Padmavathi
L. Pradeepthi Pemmaraju
Gotham Samuel Silvanus
Buddha Sai Keerthana
Shaik Farhana
D. Ramachandran
B. Mallikarjuna
Phanindra Babu Kasi
author_sort Abhinash Marukurti
collection DOAJ
description Abstract Plant phytochemicals play an immense role in the synthesis of metal nanoparticles, and the quality of phytochemicals used in the synthesis depends on the extraction method, solvent, temperature, etc. An extensive number of studies were carried out on the extraction of phytochemicals using aqueous extract during the synthesis of nanomaterials. Compared to distilled water, methanol can extract diverse phytochemicals at lower temperatures, and very few studies were done on this. Therefore, the present study aims to synthesize silver nanoparticles (AgNPs) using the methanolic extract of Plumeria rubra (PR) leaves. The successful synthesis of AgNPs was achieved by reducing Ag⁺ ions using PR extract. The phytochemistry of PR extract was observed using qualitative screening, Fourier transform infrared spectroscopy (FTIR), and gas chromatography with flame ionisation detection (GC-FID). The observed surface plasmon resonance using UV-visible spectroscopy confirmed the formation of PR-AgNPs, and the surface functionalization identified with FTIR correlated with the phytochemistry of the PR extract. X-ray diffraction and high-resolution transmission electron microscopy (HRTEM) methods revealed the amorphous nature and particle size distribution. Field emission scanning electron microscopy (FESEM) shows that PR-AgNPs particles have irregular shapes, some of which are embedded on sheet-like structures. The successful inhibition of V. parahaemolyticus was observed at lower concentrations among other tested organisms, and it also reduced 2,2’-diphenyl-1-picryl hydrazyl (DPPH). The hemocompatibility and in vitro cytotoxicity assays showed that PR-AgNPs had moderate activity. This study successfully synthesized AgNPs using PR extract, and its biological activities in vitro were also found to be effective.
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spelling doaj-art-a74651bc8bda4ff5a64fb5a5f87530082025-08-20T03:05:18ZengNature PortfolioScientific Reports2045-23222025-08-0115111310.1038/s41598-025-14353-wIn vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubraAbhinash Marukurti0Alavala Matta Reddy1Pangi Vijaya Nirmala2Dasari Kalyani3K. Ramaneswari4I. J. N. Padmavathi5L. Pradeepthi Pemmaraju6Gotham Samuel Silvanus7Buddha Sai Keerthana8Shaik Farhana9D. Ramachandran10B. Mallikarjuna11Phanindra Babu Kasi12School of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversitySchool of Life and Health Sciences, Adikavi Nannaya UniversityCentre for Nanoscience and Nanotechnology, Sathyabama UniversityDepartment of Chemistry, Government College (A)Department of Integrative Medical Biology, Umeå UniversityAbstract Plant phytochemicals play an immense role in the synthesis of metal nanoparticles, and the quality of phytochemicals used in the synthesis depends on the extraction method, solvent, temperature, etc. An extensive number of studies were carried out on the extraction of phytochemicals using aqueous extract during the synthesis of nanomaterials. Compared to distilled water, methanol can extract diverse phytochemicals at lower temperatures, and very few studies were done on this. Therefore, the present study aims to synthesize silver nanoparticles (AgNPs) using the methanolic extract of Plumeria rubra (PR) leaves. The successful synthesis of AgNPs was achieved by reducing Ag⁺ ions using PR extract. The phytochemistry of PR extract was observed using qualitative screening, Fourier transform infrared spectroscopy (FTIR), and gas chromatography with flame ionisation detection (GC-FID). The observed surface plasmon resonance using UV-visible spectroscopy confirmed the formation of PR-AgNPs, and the surface functionalization identified with FTIR correlated with the phytochemistry of the PR extract. X-ray diffraction and high-resolution transmission electron microscopy (HRTEM) methods revealed the amorphous nature and particle size distribution. Field emission scanning electron microscopy (FESEM) shows that PR-AgNPs particles have irregular shapes, some of which are embedded on sheet-like structures. The successful inhibition of V. parahaemolyticus was observed at lower concentrations among other tested organisms, and it also reduced 2,2’-diphenyl-1-picryl hydrazyl (DPPH). The hemocompatibility and in vitro cytotoxicity assays showed that PR-AgNPs had moderate activity. This study successfully synthesized AgNPs using PR extract, and its biological activities in vitro were also found to be effective.https://doi.org/10.1038/s41598-025-14353-wAntimicrobial resistanceAgNPsPhytochemicalsPlumeria rubra.
spellingShingle Abhinash Marukurti
Alavala Matta Reddy
Pangi Vijaya Nirmala
Dasari Kalyani
K. Ramaneswari
I. J. N. Padmavathi
L. Pradeepthi Pemmaraju
Gotham Samuel Silvanus
Buddha Sai Keerthana
Shaik Farhana
D. Ramachandran
B. Mallikarjuna
Phanindra Babu Kasi
In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra
Scientific Reports
Antimicrobial resistance
AgNPs
Phytochemicals
Plumeria rubra.
title In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra
title_full In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra
title_fullStr In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra
title_full_unstemmed In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra
title_short In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra
title_sort in vitro biological activities of silver nanoparticles using methanolic leaf extract of plumeria rubra
topic Antimicrobial resistance
AgNPs
Phytochemicals
Plumeria rubra.
url https://doi.org/10.1038/s41598-025-14353-w
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