A Simple Way to Synthesize Superparamagnetic Iron Oxide Nanoparticles in Air Atmosphere: Iron Ion Concentration Effect | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

2617753

Reference Type

Journal Article

Title

A Simple Way to Synthesize Superparamagnetic Iron Oxide Nanoparticles in Air Atmosphere: Iron Ion Concentration Effect

Author(s)

Karaagac, O; Kockar, H; Beyaz, S; Tanrisever, T

Year

2010

Is Peer Reviewed?

Yes

Journal

I E E E Transactions on Magnetics
ISSN: 0018-9464

Volume

Issue

Page Numbers

3978-3983

DOI

10.1109/TMAG.2010.2076824

Web of Science Id

WOS:000284842400003

Abstract

We have synthesized water-dispersible CdTe quantum dots (QDs) capped with thioglycolic acid. Their quantum yield is higher than 54%. A sensitive electrochemiluminescence (ECL) method was established based on the modification of the composite of the QDs, carbon nanotubes and chitosan on indium tin oxide glass. The sensor displays efficient and stable anodic ECL which is quenched by dopamine. A respective sensor was designed that responds to dopamine linearly in the range of 50 pM to 10 nM, and the detection limit is 24 pM. Dopamine was determined with this sensor in spiked cerebro-spinal fluid with average recoveries of 95.7%.

Keywords

Magnetic analysis; magnetic materials; nanotechnology