Physical Characterization of Magnetic Bacteria and Their Electromagnetic Properties in the Frequency Range 1-400 GHz

Abstract

Samples have been prepared for electromagnetic measurements. Magnetic bacterial cells were freeze-dried following gluteraldehyde fixation. About 1 gram of freeze-dried following gluteraldehyde fixation. About 1 gram of freeze- dried cells was thoroughly dispersed in a special mixture consisting of lanolin, vaseline, and paraffin, 1:1:1 by weight. This mixture forms a low melting point (50C), low EM absorbing fluid. Sample holders were made by machining 3-inch diameter dishes out of polyethylene, another low absorption material. In initial experiments, an empty dish, a dish filled with the suspension fluid, and a dish filled with the cells in the suspension fluid will be measured in order to determine the absorption characteristics of the cells themselves. Additional measurements will be tried with freeze-dried cells suspended in liquid hexane. Ultimately, it is hoped that suspensions with aligned cells can be prepared by allowing the suspension mixture to solidify in external magnetic fields.

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Document Details

Document Type
Technical Report
Publication Date
May 14, 1986
Accession Number
ADA221455

Entities

People

  • Brian B. Schwartz

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Acids
  • Alkanes
  • Anisotropy
  • Coercivity
  • Contracts
  • Electromagnetic Properties
  • Electron Microscopes
  • Laboratory Magnetometers
  • Magnetic Fields
  • Magnetic Properties
  • Magnetization
  • Magnetometers
  • Materials
  • Measurement
  • Melting Point
  • Vitamin C

Readers

  • Aerosol Science/Aerosol Physics
  • Microbial Pathology
  • Polymer Science and Engineering.