Investigation of the Interaction of Superparamagnetic Nanoparticles and Nonmagnetic Nanoparticles with Cell Membranes

Abstract

The investigation on the interaction of superparamagnetic nanoparticles with cell membranes was divided into three phases: the synthesis and characterization of the magnetic and structural properties, surface functionalization of the particles, and ferrofluid studies of the particles in the presence of a slowly varying magnetic field. Two methods were explored to synthesize the superparamagnetic nanoparticles used in this investigation to achieve a distribution in particle size. Chemical synthesis and microwave plasma spray, a proprietary technique developed by Materials Modification, Incorporated (MMI). Chemical synthesis yielded the most uniform particle size distribution in the 4-14 nm range, while plasma spray was more successful in synthesizing particles in the 14-40 nm range. Most of the discussions in this report will be centered on the chemical synthesis process. The magnetic and fluid studies on the nanoparticles showed excellent superparamagnetic behavior. The surface functionalization phase focused on binding bipolar organic compounds to nanoparticles to make them hydrophilic as a precursor to cell membrane interaction studies. Theoretical techniques were developed to analyze the magnetization results will be presented in thesis report.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2009
Accession Number
ADA494823

Entities

People

  • C. M. Williams

Organizations

  • Morgan State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amino Acids
  • Cell Membrane
  • Cells
  • Cellular Structures
  • Chemical Synthesis
  • Chemistry
  • Department Of Defense
  • Ethers
  • Laboratory Magnetometers
  • Magnetic Fields
  • Magnetic Properties
  • Magnetization
  • Materials
  • Measurement
  • Nanoparticles
  • Organic Compounds
  • Particle Size

Fields of Study

  • Chemistry

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Biotechnology