Facile green synthesis of variable metallic gold nanoparticle using Padina gymnospora, a brown marine macroalga

By Manoj Singh, R. Kalaivani, S. Manikandan, N. Sangeetha, A. Kumaraguru. Applied Nanoscience, 2013

225 citations recorded by the source corpus.

The process of development of reliable and eco-friendly metallic nanoparticles is an important step in the field of nanotechnology. To achieve this, use of natural sources like biological systems becomes essential. In the present work, extracellular biosynthesis of gold nanoparticles using Padina gymnospora has been attempted and achieved rapid formation of gold nanoparticles in a short duration. The UV–vis spectrum of the aqueous medium containing gold ion showed peak at 527 nm corresponding to the plasmon absorbance of gold nanoparticles. Scanning electron microscopy showed the formation of well-dispersed gold nanoparticles. FTIR spectra of brown alga confirmed that hydroxyl groups present in the algal polysaccharides were involved in the gold bioreduction. AFM analysis showed the results of particle sizes (53–67 nm) and average height of the particle roughness (60.0 nm). X-ray diffraction (XRD) spectrum of the gold nanoparticles exhibited Bragg reflections corresponding to gold nanoparticles. This environment-friendly method of biological gold nanoparticle synthesis can be applied potentially in various products that directly come in contact with the human body, such as cosmetics, and foods and consumer goods, besides medical applications.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/ace5ed7e00acdfa7c0e5a121601bd200f4a90bf0

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In Biomedical Engineering

1. G. Annadurai
2. C. Kannan
3. S. Rajeshkumar

In Materials Chemistry

1. G. Annadurai
2. C. Kannan
3. M. Vanaja
4. C. Malarkodi
5. K. Paulkumar
6. Gnanadhas Gnanajobitha
7. S. Rajeshkumar

Citations in the corpus

• Seaweed-mediated synthesis of gold nanoparticles using Turbinaria conoides and its characterization (2013, methodology): “The use of eco-friendly materials like bacteria, fungi, plants, and parts of plant materials and algae for the synthesis of gold nanoparticles (AuNPs) offers several benefits of good environment and compatibility for biomedical applications as they do not use noxious chemicals in the synthesis proce”
• Algae as crucial organisms in advancing nanotechnology: a systematic review (2016, background): “gymnospora, also has been reported to synthesize AuNPs extracellularly under at varying temperatures and pH (Singh et al. 2013).”