Seaweed-mediated synthesis of gold nanoparticles using Turbinaria conoides and its characterization
By S. Rajeshkumar, C. Malarkodi, Gnanadhas Gnanajobitha, K. Paulkumar, M. Vanaja, C. Kannan, G. Annadurai. Journal of Nanostructure in Chemistry, 2013
223 citations recorded by the source corpus.
The synthesis of metal nanoparticles using algae has been unexplored, but it is a more biocompatible method than the other biological methods. Metal nanoparticle synthesis using algae extract shows rapid and non-toxic process which resulted to nano sizes having the greatest potential for biomedical applications. In this investigation, we studied the green synthesis of gold nanoparticles using the algae extract of Turbinaria conoides. Green synthesis of gold nanoparticles was preliminarily confirmed by color changing from yellow to dark pink in the reaction mixture, and the broad surface plasmon resonance band was centered at 520 to 525 nm which indicates polydispersed nanoparticles. Transmission electron microscopy and selected-area electron diffraction analysis show the morphology and crystalline structure of synthesized gold nanoparticles with the size range of 6 to 10 nm. The four strong diffraction peaks were observed by X-ray diffraction; it confirmed the crystalline nature of synthesized gold nanoparticles. The carboxylic, amine, and polyphenolic groups were associated with the algae-assisted synthesized gold nanoparticles which was confirmed using Fourier transform-infrared spectroscopy. This study eliminates the use of chemical substances as reducing and stabilizing agent. Because it has natural several constituents which are fucoidan and polyphenolic substances, it does a dual function as both reducing and stabilizing agent for nanoparticles. Thus, algae-mediated synthesis process of biomedically valuable gold nanoparticles is a one-spot, facile, convenient, large-scaled, and eco-friendly method.
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/be207780506a400fc4bdceb46c34d4905ae96762
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Citations in the corpus
- Green synthesis of gold nanoparticles using marine algae and evaluation of their catalytic activity (2016, result): “This observation revealed that compounds having amine and hydroxyl functional groups could possibly be associated in the reduction as well as stabilization of AuNPs which is in agreement with studies reported earlier [28, 40].”
- Pigment mediated biogenic synthesis of silver nanoparticles using diatom Amphora sp. and its antimicrobial activity (2014, unknown): “Various biological resources such as bacteria, actinomycetes, fungus, plant extracts and photosynthetic algae have been exploited for biosynthesis of SNPs [7, 8, 9, 10].”
- A Review of Current Research into the Biogenic Synthesis of Metal and Metal Oxide Nanoparticles via Marine Algae and Seagrasses (2017, background): “Au 6 to 10, spherical & triangular Turbinaria conoides [99]”