170 citations · 465 across the 5 of their papers we have counts for
5 papers
The physics of epigenetics
Ruggero Cortini, Maria Barbi, Bertrand R. Caré +4
In higher organisms, all cells share the same genome, but every cell expresses only a limited and specific set of genes that defines the cell type. During cell division, not only t…
Nanoparticle aggregation controlled by desalting kinetics
J. Fresnais, C. Lavelle, J. -F. Berret
We report the formation of stable nanoparticle-polymer clusters obtained by electrostatic complexation. The nanoparticles placed under scrutiny are nanoceria (CeO2) coated by short…
Nucleosome Chiral Transition under Positive Torsional Stress in Single Chromatin Fibers
Aurelien Bancaud, Gaudeline Wagner, Natalia Conde e Silva +10
Using magnetic tweezers to investigate the mechanical response of single chromatin fibers, we show that fibers submitted to large positive torsion transiently trap positive turns,…
Structural plasticity of single chromatin fibers revealed by torsional manipulation
Aurelien Bancaud, Natalia Conde e Silva, Maria Barbi +8
Magnetic tweezers are used to study the mechanical response under torsion of single nucleosome arrays reconstituted on tandem repeats of 5S positioning sequences. Regular arrays ar…
A Physical Model for the Condensation and Decondensation of Eukaryotic Chromosomes
Julien Mozziconacci, Christophe Lavelle, Maria Barbi +2
During the eukaryotic cell cycle, chromatin undergoes several conformational changes, which are believed to play key roles in gene expression regulation during interphase, and in g…