Ricerc@Sapienza

Despite having an optimal sample for crystallization, obtaining crystals can be an arduous and unpredictable goal. The most important approaches to overcome this bottleneck were the discovery of appropriate precipitants, new methods of preparation of macromolecule samples, new methods of carrying out crystallization experiments but above all the increase of crystallization efficiency through automation.

Dual NVIDIA DGX-1 AI System providing a 2 petaFLOPS computing power optimised for Deep Learning. The two machines are connected with IB EDR high performance network.
System specs:
2 x NVIDIA DGX-1 systems, each one cnsisting in 8 NVIDIA® Tesla V100 GPUs with 256 GB total GPU-RAM, 40960 CUDA cores, 5120 Tenosr cores, 512 GB system memory, 8 TB storage, 4 IB EDR

La strumentazione di compone di due unità:

The Raman micro-spectrophotomiter is a Dilor instrument equipped with a red laser (632.5 nm), a Semrock edge filter and a 1800 grids/mm gratings. It is suitable for analysis of surfaces exploiting three objectives (10x 50x 100x).

FTIR-microscopy is an advanced technique that couples the capability of FTIR to provide a chemical analysis of samples, with the magnification power of an IR microscope. This combination allows to add a remarkable spatial resolution (e.g. <10 or <4 microns in reflection/transmission or ATR using Ge crystals) to the infrared spectroscopic analysis of materials, thus opening the door to spatial chemical discrimination of domains in inorganic or hybrid composites as well as in bio-materials.

TeraStat2 is an HPC infrastructure developed by the Dipartimento of Scienze Statistiche and hosted by the InfoSapienza IT center of University of Rome - La Sapienza. It provides a general-purpose, massively parallel supercomputing infrastructure for solving large mathematical models on Big Data. 

Laser Transmission Spectroscopy (LTS) is a relatively new technique capable of rapidly determining the size, shape, refractive index and number of meso- and nano-particles in colloidal suspensions. This technique relies on the measurement of the transmission of laser light through the sample as a function of wavelength (using a tunable laser). The measured extinction is then  inverted  to obtain the particle size distribution as well as information about particles shape,  structure (for example,  the presence of shells) and refractive index.