Monolayers of Human Plasma Fibronectin at the Air/Water Interface

N. F. Zhou, B. A. Pethica

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Human plasma fibronectin forms spread monolayers at the air/solution interface. The properties of these monolayers have been examined as a function of the composition, pH, and temperature of the aqueous phase by using low-pressure surface manometry and surface potentials. From the isotherms the molecular weight of HPFN was determined as 4.5 × 105 daltons, in agreement with the expected double-chain form of the protein. The surface densities at the highest pressures studied strongly indicate extensive folding. The second virial coefficients at 25 and 10 °C and the entropies of compression suggest several folding and packing patterns depending on the charge state of the glycoprotein.

Original languageEnglish (US)
Pages (from-to)47-50
Number of pages4
Issue number1
StatePublished - 1986
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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