Fungus-based synthesis of chemically difficult-to-synthesize multifunctional nanoparticles of CUAIO2

Absar Ahmad, Tushar Jagadale, Vivek Dhas, Shadab Khan, Shankar Patil, Renu Pasricha, Venkat Ravi, Satishchandra Ogale

Research output: Contribution to journalArticlepeer-review


A fungus-based approach for the synthesis of transparent p-type conducting oxide, CuAlO2, which is hard to synthesize chemically under technologically required low-temperature conditions, has been presented. To prepare CuAlO2, controlling the valence state of Cu to 1+ in the reaction environment is crucial, as copper try to acquire the fully oxidized Cu2+ state as in CuO. It has been revealed that the fungus-based process enables the synthesis of this ternary compound at 50°C. This demonstrates the unique valence-controlled stoichiometric nanosynthesis capability of the biosynthesis process. The β-CuAlO2 nanoparticles synthesized by the fungus based route were also found to be capped with natural protein making them water dispersible. These nanoparticles exhibited interesting multifunctionality that could be potentially useful in several applications.

Original languageEnglish (US)
Pages (from-to)3295-3299
Number of pages5
JournalAdvanced Materials
Issue number20
StatePublished - Oct 19 2007

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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