One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles.

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Abstract Text:

Magnetite nanoparticles covered by a layer of omega-hydroxycarboxylic acid were synthesized in one step by high-temperature decomposition of iron(III) omega-hydroxycarboxylates in tri- and tetra-ethylene glycol. The nanoparticles were characterized by TEM, XRD, IR, XPS and NMR techniques in order to show that they comprise a crystalline magnetite core and actually bear on the outer surface terminal hydroxy groups. The latter ones are convenient "handles" for further functionalization as opposed to the chemically-inert aliphatic chains which cover conventionally synthesized nanoparticles. This was shown by several examples in which the hydroxy groups on the nanoparticle surface were easily transformed in other functional groups or reacted with other molecules. For instance, the hydroxyl-decorated nanoparticles were made water soluble by esterification with a PEGylated acetic acid. The reactive behavior of the surfactant monolayer was monitored by degrading the nanoparticles with aqueous acid and isolating the surfactant for NMR characterization. In general, the reactivity of the terminal hydroxyl groups on the nanoparticle surface parallels that observed in the free surfactants. The reported hydroxyl-decorated magnetite nanoparticles can be thus considered as pro-functional nanoparticles, i.e., a convenient starting material to functionalized magnetic nanoparticles.

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Publishing Authors By Initials

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of colloid and interface science

VOLUME: 322

Page Numbers: 173-9

Journal Abbreviation:

ISSN: 0021-9797

DAY: 15

MONTH: 03

YEAR: 2008

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 43125

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles.

AFFILIATION: Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche, via Golgi 19, 20133 Milano, Italy.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Colloid Interface Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles Related Publications

• Adult mammalian neurogenesis and the New Zealand white rabbit.
• Audit system on quality of breast cancer diagnosis and treatment (QT): results of quality indicators on screen-detected lesions in Italy in 2005 and preliminary results for 2006.
• Cancer mortality in ethylene oxide workers.
• One-step synthesis and functionalization of hydroxyl-decorated magnetite nanoparticles.
• Plasma noradrenalin as marker of neuroinvasion in prion diseases.
• Prevention of TSE (Transmissible Spongiform Encephalopathies) with synthetic peptides: influence on progression of disease.