Size, concentration and incubation time dependence of gold nanoparticle uptake into pancreas cancer cells and its future application to x-ray drug delivery system

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Journal of Radiation Research

Volume

52

Issue

1

First Page

103

Last Page

109

Publication Date

12-24-2010

Publication Status

1

Abstract

One of the restrictions in the potential use of gold markers for medical imaging/tracking of harder tumors is its size. We propose to use gold nanoparticles which, due to its small size, can be administered conveniently via intravenous injection. One of the factors that determine the clinical utility of nanoparticles is the ability to enter cells. In this report, the stability of gold nanoparticles mixed with different media was determined by UV-vis spectroscopy. Gold nanoparticle size was confirmed by TEM. Intracellular uptake using different gold nanoparticle sizes, incubation times and concentrations were analyzed using Atomic Absorption Spectrometry (AAS). Temperature dependence uptake was also measured using AAS. The results showed that pancreas cancer cells uptake 20 nm gold nanoparticles preferentially compared to other gold nanoparticle sizes. Efficient accumulation of gold nanoparticles into pancreas cancer cells can be achieved at longer incubation time and higher concentration. The findings of this study will help in the design and optimization of the gold nanoparticle-based agents for therapeutic and diagnostic applications of X-ray Drug Delivery System.

html

Disciplines

Atomic, Molecular and Optical Physics | Biological and Chemical Physics | Nanomedicine

Keywords

Nanomedicine; Drug delivery systems; Nanoparticles

Upload File

wf_no

This document is currently not available here.

Off-Campus OpenURL

Share

COinS