MasterNanosciences, nanotechnologies

The modeling of crowd movements has become a very active field of research, and deep debates still animate the community on how to model certain behaviors such as panic movements. In this case, the "faster-is-slower" effect plays a central role: in certain situations for which the crowd is very dense, the will of the individuals is to increase their mobility in their effort to evacuate, which has the effect of blocking the entire evacuation process. A similar paradoxical effect is known as loss of capacity. The capacity of an exit door is defined as the maximum flow that can pass through it. This quantity is not a static value, but depends on the regime. The phenomenon of loss of capacity corresponds to a significant decrease in the actual flow upstream.

From planctonic species to large mammals, the movements of marine organisms span a wide range of length and time scales. Their individual and collective movements as well as their intra- and extra-species mutual interactions have significant ecological and environmental impacts.

The self-organization of groups of individuals is an astonishing example of collective effects in active matter. This internship proposes to modelize the dynamics of groups of fish in 3D.

Acoustic meta-materials have extraordinary properties such as a negative refractive index or super-absorption, and give hope to create coats of invisibility around an object or to make echoes disappear.

The LTM (Laboratory of the Technologies of Microelectronics, Grenoble) has a unique expertise in the design of substrates for 2D cell culture that exhibit controlled mechanical properties mimicking the mechanical properties of human tissues at the micron scale (micrometer being the scale of cell adhesive spots on their matrix). These substrates are currently used at the LTM for the study of cell behavior in the context of oncology and regenerative medicine. These technologies would benefit from being pushed to 3D to gain in tissue mimicry, as it is known that cell responses differ between 2D and 3D geometries.

A project at the Laboratory of interdisciplinary Physics

Human insulin is a therapeutic protein widely used to control blood glucose levels in diabetic patients. But insulin aggregation in plastic tubings reduces its bio-activity. The aggregates formed are called amyloid fibers.

This interdisciplinary project, between chemistry and physics, aims at designing a novel strategy to tackle a great environmental challenge: filter and separate light gases.

The energy of saline gradients, such as fresh water and sea water, is an alternative energy source with an enormous potential estimated to 1 TW world-wide. However this alternative energy is still largely unsued, as its capture requires the engineering and development of efficient energy-conversion technologies.

LRP team discovered recently the presence of long-range attraction in suspensions of micro-particles made of complex polyelectrolytes. These properties open the way to new applications.

At the crossroad between physics, biology and chemistry, this ANR-funded project aims at quantifying adhesion forces of individual bacteria adhering and moving onto soft surfaces at the onset of surface colonization.

The exceptional mechanical properties of living tissues stem from their complex and multi-composite molecular structures organized hierarchically in space.

Soft tissue connects, surrounds or supports internal organs and bones. They exhibit a large variety of microstructures and mechanical properties, which vary from organ to organ and according to patho-physiological conditions.

Alongside their native, functional structure, proteins tend to aggregate, resulting in the irreversible loss of the native protein conformation and function.

Counting and characterizing molecules in their biological environment is an important challenge for our fundamental understanding of life but also for clinical prospects (regenerative medicine, etc.).

Understanding what differentiates an inert object from living matter is a fundamental question in biology. Living matter is dynamic and requires a continuous energy consumption; however, the fundamental principles of its dynamics are still largely unknown.

The goal of this project is to design a self-organizing protein nano-structure capable of selectively trapping volatile organic compounds (VOCs), and then allowing their identification through an optoelectronic nose.

Mapping the elastic and visco-elastic properties of biological cells at the sub-micro scale is an important challenge for medical applications. A soft matter research project at the Laboratory of interdisciplinary Physics

Investigation of a new class of photocatalysts based on composites systems obtained by connexion between quantum dots and metallic nanoparticles in colloidal state.

Whether to purify the air from fine particle pollution or to obtain pure gases, our filtration and gas separation needs are increasing rapidly. Among the various techniques used, gas separation by thin membranes, which form a permeable barrier through which the various gaseous compounds are filtered according to their size, diffusivity or solubility in the membranes, is in full expansion.

Vacuoles are compartments delimited by a membrane and filled with water and ions. They play a crucial role in regulating the cellular turgor pressure of plants. This internship will reproduce in-silico vacuole networks.

The energy of mixing for instance between sea water and river fresh water appears as a major and promising source of renewable energy.

Luminescence nanothermometry consists in measuring the temperature at the nanoscale without using contact probes which can, at this scale, affect the measurement ...

The purpose of the proposed internship is to understand the dynamics of the bacterial nucleoid through coarse-grained molecular modeling and simulations.

With the advent of "Gigafactory" to produce European made batteries, there is a need to create new battery technologies that will enable the large-scale development of the electric vehicle and storage application.