KARINA K. SAND
 

LEKTOR / ASSOCIATE PROFESSOR

MOLECULAR GEOBIOLOGY

Bio-mineral interactions

I am an experimentalist with a geology and geochemistry background. In my group we apply in-situ molecular- to macro scale techniques to study bio-mineral interactions to improve our understanding on these topics.

 

Interactions between organic molecules and mineral surfaces have a range of interesting aspects. They are vital for many forms of life and essential for both organizing shell structures and for anchoring an organism to a substrate. Bio-mineral interactions can also reveal traces of past life and be controlling for large and smaller scale mineralization and have a significant influence on element cycles. Additionally, such interactions could have enhanced the RNA polymerization needed for the origin of life. Recently I have found evidence to support that interactions between DNA and minerals could have a significant contribution to the evolution of life and propagation of antibiotic resistance genes through mineral facilitated horizontal gene transfer.

I am working with microbes, biomolecules (polysaccharides, DNA, EPS), model molecules (thiol chemistry, peptoids) and a range of different minerals (clays, CaCO3, iron oxides, quartz...)

PROJECTS

Antibiotic resistance

 

(incl. examples for student projects)

Evolution of life

 

(incl. examples for student projects)

Preservation of eDNA

 

(incl. examples for student projects)

Bacteria

Carbonate particles

Tuning CaCO3 mineralisation

Origin of life

Quantification of molecular binding

Biomineralization

C turnover and BIF

Polymeric control of CaCO3

Calcite growth and inhibition

Nucleation and growth

Shape and form

Mineral exploration

Bacteria

Iron oxide

partcles

Bacterial control

© 2019 by Karina K. Sand

karina.sand@gmail.com

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