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

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

doi:10.1016/j.colsurfa.2012.03.061

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 journal › Article › Research › peer-review

24 Citations (Scopus)

Abstract

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, FeO_w, and FeOH units) of the optimized γ-Fe₂O₃ cluster matched well with the calculations.

Original language	English
Pages (from-to)	96-102
Number of pages	7
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	403
DOIs	https://doi.org/10.1016/j.colsurfa.2012.03.061
Publication status	Published - 5 Jun 2012
Externally published	Yes

Keywords

Core-shell nano particles
Streptomycin
Succinic acid

Programme Area

Programme Area 2: Water Resources

Access to Document

10.1016/j.colsurfa.2012.03.061

Cite this

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title = "Fabrication of succinic acid-γ-Fe2O3 nano core-shells",

abstract = "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.",

keywords = "Core-shell nano particles, Streptomycin, Succinic acid",

author = "L. Jayarathne and Ng, \{W. J.\} and A. Bandara and M. Vitanage and Dissanayake, \{C. B.\} and R. Weerasooriya",

year = "2012",

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doi = "10.1016/j.colsurfa.2012.03.061",

language = "English",

volume = "403",

pages = "96--102",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

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TY - JOUR

T1 - Fabrication of succinic acid-γ-Fe2O3 nano core-shells

AU - Jayarathne, L.

AU - Ng, W. J.

AU - Bandara, A.

AU - Vitanage, M.

AU - Dissanayake, C. B.

AU - Weerasooriya, R.

PY - 2012/6/5

Y1 - 2012/6/5

N2 - 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.

AB - 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.

KW - Core-shell nano particles

KW - Streptomycin

KW - Succinic acid

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