Global Advanced Research Journal of Microbiology (GARJM) ISSN: 2315-5116

May, 2015. Vol. 4(4), pp 036-049

Copyright © 2015 Global Advanced Research Journals


Full Length Research Paper

Biosynthesis of Silver Nanoparticles By Spirulina platensis & Nostoc sp.

Entesar A. Ahmed(1), Ekbal H. Abdel Hafez2, Amel F. M. Ismail(3) Sawsan M. Elsonbaty(4), and Heba* S. Abbas(5) , Rawheya A. Salah El Din(6)


(1) Lecturer of Phycology Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girl Branch).

(2) Lecturer of Microbiology - National Organization for Drug Control and Research (NODCAR)

(3) Lecturer of Biochemistry - Drug Radiation Research Department(NCRRT)

(4) Assistant professor of Biochemistry Microbiology (NCRRT).

(5) PhD Student Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girl Branch) and Drug control specialist at (NODCAR)

(6) Professor of Phycology, Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girl Branch).

*Corresponding Author Email:

Accepted 11 May, 2015




Synthesis of nanoparticles that have environmentally acceptable solvent systems and eco-friendly reducing agents is of great importance. The aim of this work was to synthesis of silver nanoparticles (AgNPs) using Spirulina platensis and Nostoc sp. at room temperature. UV–visible spectrometry study revealed surface plasmon resonance at 402 nm. The transmission electron micrographs of nanoparticles in an aqueous solution showed the production of AgNPs (average size of most particles˜11.5 nm by Spirulina platensis and 20.3 nm by Nostoc sp.). The Fourier Transmittance Infrared spectrum (FT-IR) confirms the presence of biocomponent in the algae which was responsible for the nanoparticles synthesis. The antibacterial activity silver nanoparticles against both gram positive bacteria (Staphylococcus aureus, Staphylococcus epidedymis) and gram negative bacteria (Klebsiella pneumonia, Escherichia coli and Pseudomonas aeruginosa) by well diffusion method showed excellent antibacterial activity against all tested bacterial. This green process gives the greater potential biomedical applications of silver nanoparticles.

Keywords: Biogenic nanoparticles, silver nanoparticles, algae, Antimicrobial Activity of Silver nanoparticles.


Related Articles

Original Research Articles
Alaa El-Dein Omara and Ahmed El-Ghandor
Effect of Thiobencab and Penoxsulam Herbicides on Soil Microbial Population and Weed Control in Transplanted Rice
Glo. Adv. Res. J. Microbiol July 2018 Vol: 7(5): - [Abstract] [Full Text - PDF] (239 KB)
Mervat H. Hussein, Ghada S. Abou El-Wafa, Sami A. Shaaban-Dessuki and Rehab M. El-Morsy
Bioremediation of Methyl Orange onto Nostoc carneum Biomass by Adsorption; Kinetics and Isotherm Studies
Glo. Adv. Res. J. Microbiol February 2018 Vol: 7(1): - [Abstract] [Full Text - PDF] (7,372 KB)
Mohamed Medhat Ghareib, Magdy Attia, Nemat M Awad, Magdi Z Matter and Dina El-Kahky
Screening of Fusarium spp Resistance to Silver Ions for Ability to Synthesize Silver Nanoparticles from Egyptian Soils
Glo. Adv. Res. J. Microbiol September 2015 Vol: 4(9): - [Abstract] [Full Text - PDF] (1,957 KB)
Hassan Vatandoost, Ahmad Ali Hanafi-Bojd, Mohamad Reza Abai, Ahmad Raeisi, Fatemeh Nikpour and Samuel Dadzie
Conducting mosquito entomology and vector control training courses in the Eastern Mediterranean Region of World Health Organization for capacity building
Glo. Adv. Res. J. Microbiol September 2017 Vol: 6(9): - [Abstract] [Full Text - PDF] (420 KB)
Shimaa E. Ibrahim, Entesar A. Ahmed, Heba Sh. Shehata, Reda M. El Shahat and Rawheya A. Salah El Din
Isolation of Rhizobacteria and Micro Algae from Saline Soil and Production of Plant Growth Promoters
Glo. Adv. Res. J. Microbiol April 2016 Vol: 5(3): - [Abstract] [Full Text - PDF] (580 KB)
Aurora S. Jose and Simplicia A. Pasicolan
Carrying Capacity of Net Primary Productivity of Laguna Lake, Philippines.
Glo. Adv. Res. J. Microbiol November 2013 Vol: 2(11): - [Abstract] [Full Text - PDF] (174 KB)

Current Issue

Viewing Options

View Full Article - PDF
Download Full Article - PDF

Search for Articles

Entesar A. Ahmed on Google Scholar
Entesar A. Ahmed on Pubmed
Ekbal H. Abdel Hafez on Google Scholar
Ekbal H. Abdel Hafez on Pubmed
Amel F. M. Ismail on Google Scholar
Amel F. M. Ismail on Pubmed
Sawsan M. Elsonbaty on Google Scholar
Sawsan M. Elsonbaty on Pubmed
on Google Scholar
on Pubmed
Heba S. Abbas on Google Scholar
Heba S. Abbas on Pubmed
Rawheya A. Salah El Din on Google Scholar
Rawheya A. Salah El Din on Pubmed


Viewed 2451
Printed 755
Downloaded 3154
Powered By iPortal Works