ARCHIVES
VOL. 8, ISSUE 3 (2026)
Green manganese nanoparticles with Amphiroa fragilissima
Authors
Jisha Hannie Selson, Raja M
Abstract
Green synthesis is now recognised as a sustainable alternative to
traditional nanoparticle fabrication by lowering the reliance on harmful
chemicals and utilizing naturally existing reducing and stabilizing
biomolecules from biological sources. Within this framework, algae-mediated
routes are particularly attractive due to the rich phytochemical profiles and
metal-binding capabilities of macro and microalgae, yet the use of marine red
seaweeds such as Amphiroa fragilissima for manganese nanoparticle
production remains scarcely explored. The aim of the present study is to
prepare aqueous extract of A. fragilissima, synthesise and characterize
manganese nanoparticles. Manganese nanoparticles have been synthesised using
aqueous seaweed extract reacted with potassium permanganate and characterized
by using various instruments, such as UV–Visible spectroscopy, Fourier
transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning
electron microscopy (SEM). The visual colour change of the reaction mixture and
time dependent UV-Visible spectral variation supported nanoparticle formation,
while FTIR exhibited functional groups potentially involved in reduction and
capping processes. XRD analysis suggested a crystalline material with broad
reflections and SEM observations indicated moderately dispersed, slightly
agglomerated and predominantly spherical to elliptical particles. These
findings suggest that A. fragilissima is an effective biological agent
for the sustainable synthesis of manganese nanoparticles. Additionally, the
physiochemical data provided by this study serves as a critical foundation for
future research exploring their potential in catalytic, antimicrobial and
various biological applications.
Download
Pages:1-5
How to cite this article:
Jisha Hannie Selson, Raja M "Green manganese nanoparticles with <i>Amphiroa fragilissima</i>". International Journal of Biotechnology and Microbiology, Vol 8, Issue 3, 2026, Pages 1-5
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.