Journal of Applied Phycology

, Volume 25, Issue 1, pp 177–182 | Cite as

Phyconanotechnology: synthesis of silver nanoparticles using brown marine algae Cystophora moniliformis and their characterisation

  • Tollamadugu N. V. K. V. PrasadEmail author
  • Venkata Subba Rao Kambala
  • Ravi Naidu


Biosynthesis of metallic nanoparticles is a relatively new developing area of nanotechnology which has economic and environmentally friendly advantages over conventional chemical and physical methods of synthesis. In this paper, we report for the first time, on the synthesis of silver nanoparticles (AgNPs) using the Australasian brown marine algae Cystophora moniliformis. An extract of this alga was used as a reducing and stabilising agent. Temperature-dependent variation of the size of the AgNPs was observed. Agglomeration of the nanoparticles was observed at high temperatures. The average size of the AgNPs formed at temperatures < 65°C was 75 nm, whereas they were >2 μm at higher temperatures. The X-ray diffraction (XRD) pattern revealed face-centered cubic structure of the formed Ag nanoparticles.


Nanotechnology Algae Silver nanoparticles Cystophora moniliformis Phyconanotechnology 



The first author TNVKVP is thankful to the Department of Education, Employment and Workplace relations (DEEWR), Australia for Endeavour Research Fellowship. The authors are thankful to Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia and the Cooperative Research Centre (CRC) for Contamination Assessment and Remediation of Environment (CARE) for infrastructure and research facilities.


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Tollamadugu N. V. K. V. Prasad
    • 1
    Email author
  • Venkata Subba Rao Kambala
    • 2
    • 3
  • Ravi Naidu
    • 2
    • 3
  1. 1.Institute of Frontier Technology, Regional Agricultural Research Station, Department of NanotechnologyAcharya NG Ranga UniversityTirupatiIndia
  2. 2.Centre for Environmental Risk Assessment and RemediationUniversity of South AustraliaMawson LakesAustralia
  3. 3.CRC for Contamination Assessment and Remediation of EnvironmentUniversity of South AustraliaMawson LakesAustralia

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