Macromolecule mediated rapid synthesis of amorphous germania particles

S V Patwardhan, S J Clarson

Research output: Contribution to journalSpecial issuepeer-review


The unique optical properties of germanium dioxide or germania (GeO2), and in particular when compared with other glasses such as silicates, have attracted the attention of scientists and make them highly suitable for optoelectronic applications. Germanium is known to resemble silicon in some of its chemical properties. The recent findings on the importance of the role of the (bio)macromolecules in (bio)mineralization has led us to investigate the role of synthetic macromolecules in facilitating the formation of germania particles for the first time. One novelty is that the process described herein was carried out under ambient conditions and at neutral pH. Amorphous spherical germania particles were seen by scanning electron microscopy. Furthermore, when the reaction mixture was subjected to external shear, the formation of elongated rod-like germania structures was successfully achieved. This novel process is of importance for the design of new materials based on germania and silica-germania hybrids for potential applications such as their use in optical fibers.

Original languageEnglish
Pages (from-to)U762-U762
Number of pages1
JournalAbstracts of papers - American Chemical Society
Publication statusPublished - Sep 2003
Event226th National Meeting of the American-Chemical-Society - New York, United States
Duration: 7 Sep 200311 Sep 2003


  • macromolecule
  • rapid synthesis
  • amorphous germania
  • germanium dioxide
  • GeO2
  • optoelectronic applications


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