Journal of Nanomedicine & Nanotechnology

Priyadarshi Mahapatra

Publications

• Research Article
  Structure of Micelles Calcium Didodecyl Sulfate: A SAXS Study
  Author(s): Priyadarshi Mahapatra, AS Abdul Rasheed, PS Goyal and Jayesh R Bellare Priyadarshi Mahapatra, AS Abdul Rasheed, PS Goyal and Jayesh R Bellare
  
  This paper reports the structure of micelles of Calcium Didodecyl Sulfate (CDS), Ca(DS)2 , as studied using Small Angle X-ray Scattering (SAXS). CDS is a dianionic surfactant consisting of two DS- tails attached to Ca++ divalent ion. There is considerable interest in understanding the structure (especially the outer shell of counter-ions) of micelles of CDS as unlike conventional surfactants (e.g. CTAB, SDS) where counter-ion is monovalent, CDS has a divalent counter-ion. SAXS is an ideal technique for obtaining information about the outer shell of the Ca(DS)2 micelle, as the constituents (S, Ca, O etc.) of the shell are strong X-ray scatterers. The SAXS measurements have been made on salt-free aqueous solutions of calcium didodecyl sulfate for surfactant concentrations of 0.5, 1.0, 2.5, and 20 weight % (or 8.8, 17.7, 44.92 and 438.01 mM/dm3 ) respect.. View More»
  DOI: 10.4172/2157-7439.1000307

  Abstract PDF