Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Forces between proteoheparan sulfate layers adsorbed at hydrophobic surfaces
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
1994 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 10, p. 1274-1280Article in journal (Refereed)
Abstract [en]

The forces between proteoheparan sulphate layers adsorbed at hydrophobic surfaces were investigated by direct surface force measurements. In 0.2 mg/ml proteoheparan sulphate and 0.1 mM NaCl, the forces were monotonically repulsive, with one distant regime having a decay length of about 180 Å, and one steeply repulsive proximal part at distances smaller than about 100 Å. Only small effects were observed on dilution with 0.1 mM NaCl, indicating ”irreversible” adsorption. The decay length of the distant force component was 280 Å after dilution, whereas the proximal repulsive component remained unchanged. Furthermore, after dilution, a weak adhesion (F/R = 200 mN/m) was observed. At addition of CaCl2, the decay length of the distant repulsion decreased from 280 Å in 0.1 mM NaCl to 86 Å and 77 Å in 1.25 and 2.5 mM CaCl2, respectively. The deacay-lenghts in CaCl2 solutions are significantly larger than the expected Debye-lengths, demonstrating the predominance of steric forces. Furthermore, on addition of CaCl2 the magnitude of the adhesion increased from 200 mN/m to 1000 mN/m, and the proximal repulsion was observed at slightly smaller distances. It was found that both steric and electrostatic forces contribute to the interactions between proteoheparan sulphate layers

Place, publisher, year, edition, pages
1994. Vol. 10, p. 1274-1280
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27281OAI: oai:DiVA.org:ri-27281DiVA: diva2:1054285
Note
A911Available from: 2016-12-08 Created: 2016-12-08 Last updated: 2017-11-29Bibliographically approved

Open Access in DiVA

No full text in DiVA

By organisation
YKI – Ytkemiska institutet
In the same journal
Langmuir
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 9 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.30.1