Publications de Kristian Rechendorff

Conformation of Ring Polymers in 2D Constrained Environments

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

The combination of ring closure and spatial constraints has a fundamental effect on the statistics of semiflexible polymers such as DNA. However, studies of the interplay between circularity and constraints are scarce and single-molecule experimental data ...

American Physical Society2011

Persistence length and scaling properties of single-stranded DNA adsorbed on modiﬁed graphite

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

We have characterized the polymer physics of single-stranded DNA (ssDNA) using atomic force microscopy. The persistence length l(p) of circular ssDNA adsorbed on a modified graphite surface was determined independently of secondary structure. At a very low ...

2009

Conformation of Circular DNA in Two Dimensions

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

The conformation of circular DNA molecules of various lengths adsorbed in a 2D conformation on a mica surface is studied. The results confirm the conjecture that the critical exponent ν is topologically invariant and equal to the self-avoiding walk value ( ...

American Physical Society2008

Fibronectin adsorption on tantalum: The influence of nanoroughness

Kristian Rechendorff

The complex mechanisms of protein adsorption at the solid-liquid interface is of great importance in many research areas, including protein purification, biocompatibility of medical implants, biosensing, and biofouling. The protein adsorption process depen ...

2008

The promotion of secondary structures in single-stranded DNA by drugs that bind to duplex DNA: an atomic force microscopy study

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

We study the behavior of single-stranded DNA (ssDNA) in the presence of well-known drugs with either an intercalating binding mode, such as daunorubicin, actinomycin D, and chloroquine, or a minor groove binding mode, such as netropsin and berenil, by atom ...

2008