Energy transport in crystalline DNA composites

Abstract

This work reports on the synthesis of crystalline DNA-composited films and microfibers, and details the study of thermal energy transport in them. The transient electro-thermal technique is used to characterize the thermal transport in DNA composite microfibers, and the photothermal technique is used to explore the thermal transport in the thickness direction of DNA films. Compared with microfibers, the DNA films are found to have a higher thermal transport capacity, largely due to the carefully controlled crystallization process in film synthesis. In high NaCl concentration solutions, the bond of the Na+ ion and phosphate group aligns the DNA molecules with the NaCl crystal structure during crystallization. This results in significant enhancement of thermal transport in the DNA films with aligned structure.

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Document Details

Document Type
Technical Report
Publication Date
Jan 29, 2014
Accession Number
AD1070144

Entities

People

  • Shen Xu
  • Xiaoduan Tang
  • Xinwei Wang
  • Zaoli Xu

Organizations

  • Iowa State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Buffers (Chemistry)
  • Composite Materials
  • Conduction (Heat Transfer)
  • Crystal Structure
  • Deoxyribonucleic Acids
  • Heat Capacity
  • Heat Energy
  • Heat Transfer
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Military Research
  • Thermal Conductivity
  • Thermal Diffusivity
  • Thermodynamics
  • Thermophysical Properties

Fields of Study

  • Chemistry
  • Materials science

Readers

  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology
  • Surface Engineering/Surface Coating Technology.