Publication

An interdisciplinary team of researchers from Germany and the LIPhy has demonstrated that Tau, a neuronal protein known for stabilizing microtubule tips, plays an active role in modulating microtubule lattice dynamics. The study reveals that Tau significantly accelerates the exchange of tubulin within the microtubule lattice, especially at topological defect sites, despite lacking enzymatic activity. These findings challenge the traditional view of Tau as merely a passive stabilizer, showing instead that it increases lattice anisotropy and, in doing so, actively enhances microtubule lattice dynamics.

A team from LIPhy has studied the transport of CO2 within a liquid foam in contact with the atmosphere and shown how its effective diffusion in the medium emerges from the coupling between the structure of the foam and the transport of the gas through the soap films. This study paves the way for the development of low-cost CO2 filtration systems based on the ability of this main contributor to the greenhouse effect to dissolve more easily in water than most other gases.

LIPhy is taking action to reduce the share of equipment purchases in its CO2 emissions! Over the past year, the laboratory has developed and implemented a new digital tool for sharing equipment: the Matosthèque.

Dental sensitivity is unique in that it is mediated by cells called odontoblasts, located in the dental pulp at the center of the tooth. According to hydrodynamic theory, the activation of odontoblastic processes is linked to the movement of fluids in the dentinal porosity induced by external stimuli. A new study conducted at the Interdisciplinary Laboratory of Physics (LIPhy - CNRS/UGA) shows that this porosity has all the characteristics of a complex network. Far from functioning as independent sensors, odontoblasts could therefore, in theory, adopt collective behaviors that are very different from the simple sum of individual responses.

When light is scattered, how accurately can a measurement result be derived from that light? An international research team has explored the limits of what is possible using artificial intelligence.

A scientific team from Grenoble, involving the Laboratoire interdisciplinaire de physique (LIPhy - CNRS/UGA) and the Centre Inria de l'UGA, has developed a groundbreaking computational model that reveals universal laws governing how creatures swim across vastly different sizes and environments — from microscopic bacteria to massive blue whales.

In a recent work, researchers show that particles entrained in a flow close to a deformable wall undergo a force that moves them slightly away from it, an important result for the general understanding of transport phenomena in biology.

At the heart of the Arabidopsis thaliana flower, the pistil, formed of hundreds of papillae and an ovary housing the ovules, is surrounded by stamens that release pollen grains carrying male gametes. In an article published in PLOS Computational Biology, scientists combine theory and experiments to reveal how male gametes are guided toward the ovules from the very beginning of their journey on the surface of the female reproductive organ.

Cyanobacteria have an internal biological clock that rhythms their activities on a 24-hour cycle. Thanks to this finely regulated mechanism, these micro-organisms are able to anticipate day/night cycles. A study recently published in Scientific Reports looked at how this clock reacts when the temperature drops below 25°C, an important threshold for their physiology.