Synthesis and characterization of Fe 3O 4-CdX (X = S, Se) core-shell nanoparticles

Daksha Patel; Yongmin Chang; Tae Jeong Kim; Myung Hwa Jung; Gang Ho Lee

doi:10.1166/jnn.2008.IC19

Synthesis and characterization of Fe ₃O ₄-CdX (X = S, Se) core-shell nanoparticles

Daksha Patel, Yongmin Chang, Tae Jeong Kim, Myung Hwa Jung, Gang Ho Lee

Research output: Contribution to journal › Article › peer-review

Abstract

We report a facile one-pot synthesis of Fe ₃O ₄-CdX (X = S, Se) core-shell nanoparticles and characterized them with XRD, TEM, squid magnetometer, and UV-visible absorption and PL spectrometers. We observed that the core Fe ₃O ₄ nanoparticles showed a superparamagnetism at room temperature, whereas the shell CdX (X = S, Se) showed blue-shifts from the bulk materials in UV-visible absorption spectra, due to quantum confinement effect. These superparamagnetic and optical properties of the Fe ₃O ₄-CdX (X = S, Se) core-shell nanoparticles can be used for both MR and optical imagings. This dual imaging capability will increase a possibility of an early observation of disease such as cancer.

Original language	English
Pages (from-to)	4826-4829
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	8
Issue number	9
DOIs	https://doi.org/10.1166/jnn.2008.IC19
State	Published - Sep 2008

Keywords

Fe O -CdX (X = S, Se) core-shell nanoparticles
One-pot synthesis
Optical properties
Superparamagnetism

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1166/jnn.2008.IC19

Cite this

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title = "Synthesis and characterization of Fe 3O 4-CdX (X = S, Se) core-shell nanoparticles",

abstract = "We report a facile one-pot synthesis of Fe 3O 4-CdX (X = S, Se) core-shell nanoparticles and characterized them with XRD, TEM, squid magnetometer, and UV-visible absorption and PL spectrometers. We observed that the core Fe 3O 4 nanoparticles showed a superparamagnetism at room temperature, whereas the shell CdX (X = S, Se) showed blue-shifts from the bulk materials in UV-visible absorption spectra, due to quantum confinement effect. These superparamagnetic and optical properties of the Fe 3O 4-CdX (X = S, Se) core-shell nanoparticles can be used for both MR and optical imagings. This dual imaging capability will increase a possibility of an early observation of disease such as cancer.",

keywords = "Fe O -CdX (X = S, Se) core-shell nanoparticles, One-pot synthesis, Optical properties, Superparamagnetism",

author = "Daksha Patel and Yongmin Chang and Kim, {Tae Jeong} and Jung, {Myung Hwa} and Lee, {Gang Ho}",

year = "2008",

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doi = "10.1166/jnn.2008.IC19",

language = "English",

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AU - Patel, Daksha

AU - Chang, Yongmin

AU - Kim, Tae Jeong

AU - Jung, Myung Hwa

AU - Lee, Gang Ho

PY - 2008/9

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AB - We report a facile one-pot synthesis of Fe 3O 4-CdX (X = S, Se) core-shell nanoparticles and characterized them with XRD, TEM, squid magnetometer, and UV-visible absorption and PL spectrometers. We observed that the core Fe 3O 4 nanoparticles showed a superparamagnetism at room temperature, whereas the shell CdX (X = S, Se) showed blue-shifts from the bulk materials in UV-visible absorption spectra, due to quantum confinement effect. These superparamagnetic and optical properties of the Fe 3O 4-CdX (X = S, Se) core-shell nanoparticles can be used for both MR and optical imagings. This dual imaging capability will increase a possibility of an early observation of disease such as cancer.

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