Ultrafine Highly Magnetic Fluorescent δ-Fe2O3/NCD Nanocomposites for Neuronal Manipulations

Vijay Bhooshan Kumar, Michal Marcus, Ze'Ev Porat, Lior Shani, Yosef Yeshurun, Israel Felner, Orit Shefi, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


In this work, we describe a low-cost, two-step synthesis of composites of nitrogen-doped carbon quantum dots (NCDs) with γ-Fe2O3 (NCDs/γ-Fe2O3), which is based on a hydrothermal cum co-precipitation method. The product is a fine powder of particles having an average diameter of 9 ± 3 nm. The physical and chemical properties of NCDs/γ-Fe2O3 were studied, as well as the superconducting quantum interference device and Mossbauer analysis of the magnetic properties of these nanocomposites. The interaction of NCDs/γ-Fe2O3 nanocomposites with neuron-like cells was examined, showing efficient uptake and low toxicity. Our research demonstrates the use of the nanocomposites for imaging and for controlling the cellular motility. The NCDs/γ-Fe2O3 nanocomposites are promising because of their biocompatibility, photostability, and potential selective affinity, paving the way for multifunctional biomedical applications.

Original languageEnglish
Pages (from-to)1897-1903
Number of pages7
JournalACS Omega
Issue number2
StatePublished - 28 Feb 2018

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering


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