Synthesis of silver nanoparticles using the seaweed Codium capitatum P.C. Silva (Chlorophyceae)

By R. Kannan, W. Stirk, J. van Staden. 2013

163 citations recorded by the source corpus.

Abstract The formation of silver nanoparticles by the reduction of aqueous silver metal ions during exposure to both fresh and dry seaweed extracts of Codium capitatum is reported. The silver nanoparticles obtained were characterized using UV–visible spectroscopy with characteristic absorption peaks at 422 and 425 nm. The color intensity at 422 nm increased for the duration of the incubation period. Using energy dispersive X-ray spectrometry (EDX) analysis, a distinct peak of silver was confirmed. Silver concentrations of 63.7% in the fresh and 56.0% in the dried seaweed were detected. The Fourier Transform Infrared (FTIR) spectra indicated the involvement of amine, peptide and sulfate groups in the C. capitatum extract for bioreduction and stabilization of AgNP. No synthetic reagents were used in this investigation, and thus it is an environmentally safe method with potential for biomedical and agriculture applications.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/52eab0231fd9096155a06008458fce31f8418030

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In Biomedical Engineering

In Materials Chemistry

Citations in the corpus

A Review of Current Research into the Biogenic Synthesis of Metal and Metal Oxide Nanoparticles via Marine Algae and Seagrasses (2017, methodology): “Similarly, crystalline Ag nanoparticles were biosynthesized from Codium capitatum to produce spherical and cubic nanoparticles ranging in size from 3 to 44 nm, with a mean particle size of 30 nm [95].”
Green Synthesis of Silver Nanoparticles: A Review (2016, background): “0.5 ml/10 ml, Static, 10 min at 10000 rpm UV-Vis FTIR XRD Size—5 - 20.5 nm Structure—cryst Antibacterial to S. aureus, V. cholerae, M. luteus and K. pneumonia 44 Kannan et al. (2013) [108] Filtered aqueous extract of codium captium sea weed powder.”