Silica Nanoparticle-based Dual Imaging Colloidal Hybrids: Cancer Cell Imaging and Biodistribution

Overview

Journal Int J Nanomedicine

Publisher Dove Medical Press

Specialty Biotechnology

Date 2015 Sep 11

PMID 26357472

Citations 5

Authors

Haisung Lee

Dongkyung Sung

Jinhoon Kim

Byung-Tae Kim

Tuntun Wang

Seong Soo A An

Soo-Won Seo

Dong Kee Yi

Affiliations

Soon will be listed here.

Abstract

In this study, fluorescent dye-conjugated magnetic resonance (MR) imaging agents were investigated in T mode. Gadolinium-conjugated silica nanoparticles were successfully synthesized for both MR imaging and fluorescence diagnostics. Polyamine and polycarboxyl functional groups were modified chemically on the surface of the silica nanoparticles for efficient conjugation of gadolinium ions. The derived gadolinium-conjugated silica nanoparticles were investigated by zeta potential analysis, transmission electron microscopy, inductively coupled plasma mass spectrometry, and energy dispersive x-ray spectroscopy. MR equipment was used to investigate their use as contrast-enhancing agents in T1 mode under a 9.4 T magnetic field. In addition, we tracked the distribution of the gadolinium-conjugated nanoparticles in both lung cancer cells and organs in mice.

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