Fabrication of succinic acid-γ-Fe2O3 nano core-shells

L. Jayarathne, W. J. Ng, A. Bandara, M. Vitanage, C. B. Dissanayake, R. Weerasooriya

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Core-shell nano-structures were synthesized by adsorbing succinic acid on γ-Fe2O3 nanoparticles (hereafter referred to as core-shell nanoparticles or core-shells). Streptomycin was chosen as a model drug to attach on γ-Fe2O3 core-shells. Vibration spectroscopic data confirmed the specific adsorption of organic ligands (i.e., succinic acid or streptomycin) onto γ-Fe2O3 via bi-dentate, bi-nuclear complex. Possible molecular configurations between organic ligands and γ-Fe2O3 were examined by density functional theory (DFT) using Fe6(OH)18(H2O)6 ring cluster. The measured vibration frequencies and bond distances (i.e., FeOFe, FeOw, and FeOH units) of the optimized γ-Fe2O3 cluster matched well with the calculations.

Original languageEnglish
Pages (from-to)96-102
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Publication statusPublished - 5 Jun 2012
Externally publishedYes


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