Ceramics-Silikáty (Jul 2016)

DEVELOPMENT OF NANO MULLITE BASED MESOPOROUS SILICA BIOCER WITH INCORPORATED BACTERIA FOR ARSENIC REMEDIATION

  • S. Kar,
  • P. Nandy,
  • Basu R,
  • Das S

DOI
https://doi.org/10.13168/cs.2016.0030
Journal volume & issue
Vol. 60, no. 3
pp. 200 – 204

Abstract

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Nanomullite based silica matrix was employed to entrap an arsenic(As(V)) degrading bacteria using sol-gel process. The bacteria were cultured in arsenic environment in their sub-MIC concentration to acclimatize and direct them to utilize arsenic. The matrix with and without microorganisms were characterized by FESEM and BET surface area. The bacteria remained 75% viable within the matrix as monitored up to 120 days. The enzymatic activity was also observed by fluorescein diacetate assay. The mullite assisted silica biocer provides a good material for bacteria entrapment preserving its metabolic activity therefore may be utilized as a possible candidate for arsenic remediation matrix.

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