Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Dynamic light scattering by kappa- and lambda-carrageenan solutions.

D Slootmaekers1, M Mandel, H Reynaers

  • 1Department of Physical and Macromolecular Chemistry, Gorlaeus Laboratories, Leiden University, The Netherlands.

International Journal of Biological Macromolecules
|February 1, 1991
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Tracheostomy as a model for studying the systemic effects of local tissue injuries and the cytokine patterns of acute inflammation: design, rationale and analysis plan.

Anaesthesia and intensive care·2016
Same author

On the apparent stimulation of Candida albicans by chlortetracycline.

Antibiotics & chemotherapy (Northfield, Ill.)·2014
Same author

Incidence and factors associated with treatment failure in the CLIMB multiple sclerosis cohort study.

Journal of the neurological sciences·2009
Same author

Predicting short-term disability in multiple sclerosis.

Neurology·2007
Same author

Zinc-ion binding and cytokine activity regulation pathways predicts outcome in relapsing-remitting multiple sclerosis.

Clinical and experimental immunology·2007
Same author

Gene expression studies in systemic lupus erythematosus.

Lupus·2006
Same journal

Investigating the effects of probiotic fermentation on the pancreatic lipase inhibitory activity of sea buckthorn polyphenol extracts by using untargeted metabolomics and multispectral analysis.

International journal of biological macromolecules·2026
Same journal

Nucleic acid and multi-omics approaches for understanding plant-microbiome interactions in grassland ecosystems.

International journal of biological macromolecules·2026
Same journal

Nanobody-based sandwich ELISA for sensitive detection of carcinoembryonic antigen-related cell adhesion molecule 5.

International journal of biological macromolecules·2026
Same journal

Digestion and fermentation characteristics of the polysaccharides from Polygalae Radix processed by Glycyrrhizae Radix et Rhizoma and its effects on gut microbiota and metabolites.

International journal of biological macromolecules·2026
Same journal

Synergistic antimicrobial and barrier enhancement in chitosan-rhamnolipid composite films for postharvest fruit preservation.

International journal of biological macromolecules·2026
Same journal

Mettl3-mediated FOXO1 mRNA translation inhibits myoblast differentiation and fusion through the MyoD1-Myomaker/Myomixer axis and the ubiquitin-proteasome system.

International journal of biological macromolecules·2026
See all related articles

This study measured diffusion coefficients of kappa- and lambda-carrageenan using dynamic light scattering. Results show diffusion increases with salt concentration but concentration dependence remains unexplained.

Area of Science:

  • Polymer Science
  • Physical Chemistry
  • Biophysical Chemistry

Background:

  • Carrageenan, a polysaccharide, exists in kappa and lambda forms with distinct properties.
  • Understanding carrageenan solution behavior is crucial for its applications in food and biomedical industries.
  • Polyelectrolyte behavior in solution is influenced by salt concentration and molecular structure.

Purpose of the Study:

  • To determine translational diffusion coefficients (D) for kappa- and lambda-carrageenan.
  • To investigate the influence of macromolecular and salt concentrations on D.
  • To compare the solution behavior of kappa- and lambda-carrageenan.

Main Methods:

  • Dynamic Light Scattering (DLS) to measure intensity correlation functions.
  • Analysis of the first cumulant of correlation functions to derive diffusion coefficients.

Related Experiment Videos

  • Varying carrageenan concentrations and salt (NaCl) concentrations.

    • Main Results:

    • Translational diffusion coefficients (D) increase with macromolecular concentration.
    • Extrapolated D values at infinite dilution increase with salt concentration, consistent with previous static light scattering results.
    • Lambda-carrageenan exhibited a lower D than kappa-carrageenan in 0.1 M NaCl, correlating with differences in contour length and charge density.

    Conclusions:

    • Carrageenan diffusion is salt-dependent, aligning with expectations based on molecular size.
    • Current theories do not fully explain the observed concentration dependence of diffusion coefficients.
    • No distinct differences in overall solution behavior were found between kappa- and lambda-carrageenan under the tested conditions.