Issue 7, 2015

Horseradish peroxidase-immobilized magnetic mesoporous silica nanoparticles as a potential candidate to eliminate intracellular reactive oxygen species

Abstract

Horseradish peroxidase-immobilized magnetic mesoporous silica nanoparticles (MMSNs–HRP) have been synthesized by a NHS/EDC coupling between the amino groups of horseradish peroxidase (HRP) and the carboxyl groups on the MMSNs surface. It is found that the immobilized HRP on MMSNs still retain high activity and the MMSNs–HRP can eliminate the reactive oxygen species (ROS) in Chinese hamster ovary (CHO) cells induced by the addition of H2O2 aqueous solution. Further, the fluorescent MMSN–HRP–CD nanoparticles have been prepared by attaching biocompatible, fluorescent carbon dots (CDs) to MMSNs–HRP. We have also investigated the effect of an applied magnetic field on cellular uptake of MMSNs–HRP–CDs and found that the internalization of MMSNs–HRP–CDs by CHO cells could be enhanced within 2 hours under the magnetic field. This work provides us with a novel and efficient method to eliminate ROS in living cells by using HRP-immobilized nanoparticles.

Graphical abstract: Horseradish peroxidase-immobilized magnetic mesoporous silica nanoparticles as a potential candidate to eliminate intracellular reactive oxygen species

Supplementary files

Article information

Article type
Paper
Submitted
24 Oct 2014
Accepted
03 Jan 2015
First published
05 Jan 2015

Nanoscale, 2015,7, 2941-2950

Horseradish peroxidase-immobilized magnetic mesoporous silica nanoparticles as a potential candidate to eliminate intracellular reactive oxygen species

Y. Shen, Y. Zhang, X. Zhang, X. Zhou, X. Teng, M. Yan and H. Bi, Nanoscale, 2015, 7, 2941 DOI: 10.1039/C4NR06269H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements