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

Publikation: Bidrag til tidsskrift › Artikel › Forskning › peer review

24 Citationer (Scopus)

Resumé

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.

Originalsprog	Engelsk
Sider (fra-til)	96-102
Antal sider	7
Tidsskrift	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Vol/bind	403
DOI	https://doi.org/10.1016/j.colsurfa.2012.03.061
Status	Udgivet - 5 jun. 2012
Udgivet eksternt	Ja

Programområde

Programområde 2: Vandressourcer

Adgang til dokumentet

10.1016/j.colsurfa.2012.03.061

Citationsformater

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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",

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AU - Jayarathne, L.

AU - Ng, W. J.

AU - Bandara, A.

AU - Vitanage, M.

AU - Dissanayake, C. B.

AU - Weerasooriya, R.

PY - 2012/6/5

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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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DO - 10.1016/j.colsurfa.2012.03.061

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