Plasma Physics and Technologies

This research area deals with theoretical modelling, experimental applications and diagnostics of plasma.

Elementary Processes in Plasmas are studied by accurate theoretical methods, relating to different classes of processes relevant to many technological fields, from thermonuclear controlled fusion (negative ion sources, divertor region in tokamak), to aerospace (re)entry conditions and astro-chemistry. Thermodynamic and transport properties in equilibrium plasmas have been calculated for complex gas mixtures, of different atmospheres (Earth, Mars and Jupiter). Space Plasmas are typically in very extreme conditions, from very low to very high density: this is the case of dusty plasmas, which deals with the dynamics of dust above airless body surfaces, rings and planet formation. Electric thrusters (Hall-effect and helicon discharges) and plasma-assisted combustion (SCRAMJET) are important for space transportation (satellite guidance, orbit transfer and deep space exploration).

The study of the temporal and spatial evolution of Laser Induced Plasma in different environments by spectroscopic techniques gives the required knowledge useful for a wide range of application fields (e.g. chemical analysis applied to environment, cultural heritage, space, material processing). Theoretical investigations have been also dedicated to verify the assumption of local thermodynamic equilibrium (LTE), commonly considered for calibration-free LIBS.

Plasma sources based on discharges created by direct current, capacitively coupled radiofrequency, inductively coupled radiofrequency and microwaves are characterized by thermal non-equilibrium condition and are modelled by kinetic approaches: polynomial expansion, state-to-state and particle-based (Particle-in-Cell, Monte Carlo and Molecular Dynamics) methods. These plasmas are studied from an experimental point of view, employing different optical techniques for Advanced Non-Equilibrium Plasma Diagnostics.

In particular Microwave Plasmas are employed successfully for the growth of undoped nanocrystalline (NCD) and polycrystalline diamond (PCD) films, deposited by a microwave PECVD (MWPECVD) technique starting from gas mixtures of CH4 highly diluted (less than 5%) in Ar and H2, respectively.

Plasma surface engineering includes a large area of processes aimed to drastically change the surface properties of materials preserving the bulk ones. The processes can be performed by using both low and atmospheric pressure plasmas, in both direct and remote approach, injecting the film precursors in gas, vapor and aerosol form.

MWPECVD

Chemical vapor deposition (CVD) processes assisted by plasmas, commonly known as plasma assisted CVD (PACVD) or plasma enhanced CVD (PECVD), are versatile in the production of materials with properties needful…

Gas discharges

Plasma sources based on discharges created by direct current, capacitively coupled radiofrequency, inductively coupled radiofrequency and microwaves are characterized by…

Plasma for Nuclear Fusion

The following research lines concern thermonuclear controlled fusion and in particular the most ambitious energy projects in the world today, ITER. Fusion reactor materials

Determination by means of theoretical..

Elementary processes in plasmas

Elementary Processes in Plasmas are obtained at PLASMI Lab by accurate theoretical methods, accounting for the dependence on the excitation of internal degrees of freedom of atoms and molecules…

Thermal plasmas

Equilibrium (or LTE) plasmas are characterized, deriving thermodynamic, transport properties and equilibrium composition, in a wide range of pressure and temperatures, ranging from technological applications to planetary…

Plasmas for aerospace

Numerical codes implementing kinetic, PIC, DSMC and fluid dynamic approaches and including advanced state-to-state chemical-physical models are used for the investigation of plasmas of interest for aerospace applications…

Advanced Non-Equilibrium Plasma Diagnostic

In the last two decades a rapid increase in research on nonequilibrium atmospheric-pressure discharges has occurred.  Applications covers the fields of material science, plasma assisted combustion, plasma medicine…

Plasma technologies for materials & surfaces

Plasma surface engineering embraces a large range of processes aimed to drastically change the surface properties of materials preserving the bulk ones. This includes for instance corrosion protective coatings…

Laser induced plasma

When a laser radiation is focused on a sample (solid, liquid and gas), its electromagnetic energy is transformed in to electronic excitation (free electron, plasmons). If the laser energy exceeds a characteristic threshold…

Latest News

Scholar-in-Training Award dell'AACR a Marta Cavo

Lecce, 15/01/2020
Marta Cavo, ERC-postdoctoral research fellow at the CNR Institute of Nanotechnology in Lecce (ERC-StG INTERCELLMED No., 759959, PI: Dr. Loretta L. del Mercato), have been selected to receive a Scholar-in-Training Award (USD $625). The Scholarship will support her attendance at the Conference on The Evolving Landscape of Cancer Modeling, organized by the American Association for Cancer Research (AACR), to be held on 2-5 March 2020 in San Diego (California), where she will present the work "Quantifying stroma-tumor cell interactions in three-dimensional cell culture systems". Link to the conference:

I° meeting TecnoMed Puglia

Lecce, 05 dicembre 2019 - Aula Rita Levi Montalcini - CNR NANOTEC Lecce

Si terrà domani, giovedì 05 dicembre, con inizio alle ore 14.00 presso l'aula Rita Levi Montalcini del Cnr Nanotec, il "I° meeting TecnoMed Puglia: Tecnopolo per la medicina di precisione". Il meeting mira a fare il punto sulle attività programmate, sullo stato di avanzamento e sugli highlights.

Puoi scaricare la locandina da qui

Jam session Nanotec... note di scienza su scala nanometrica

Lecce, 27 settembre 2019 - ex monastero degli Olivetani "CAR-T: l'alba di una nuova era"  con: Attilio Guarini (IRCCS Istituto Tumori “Giovanni Paolo II” di Bari)  introduce e modera: Marco Ferrazzoli (Ufficio Stampa CNR Roma) a cura di: Gabriella Zammillo 

Le CAR-T (Chimeric Antigens Receptor Cells-T) sono cellule modificate in laboratorio a partire dai linfociti T. Rappresentano una nuova strategia di cura che sfrutta il sistema immunitario per combattere alcuni tipi di tumore come linfomi aggressivi a grandi cellule e leucemie linfoblastiche acute a cellule B. Il prof Attilio Guarini, ematologo all’Istituto tumori Giovanni Paolo II di Bari, le definisce la “vis sanatrix naturae della antica medicina salernitana”, trattandosi del potenziamento dell’attività citotossica dei linfociti del paziente opportunamente ingegnerizzati per riconoscere e contrastare alcuni tipi di cellule tumorali.

 

Le CAR-T possono quindi essere definite un “farmaco vivente” proprio perché prodotto a partire dalle cellule dello stesso paziente aprendo così ad un nuovo mondo, considerato che i farmaci convenzionali sono prodotti da sostanze chimiche o, in alternativa, sono anticorpi prodotti in laboratorio dai biologi. Un trattamento estremamente complesso e costoso, non sempre applicabile, ma laddove possibile, dai risultati incoraggianti per le aspettative di vita. Lo sviluppo di nuove tecnologie per la produzione di CAR-T è parte integrante delle attività di ricerca condotte dal TecnoMed Puglia, il TecnoPolo per la Medicina di Precisione, coordinato da Giuseppe Gigli direttore del Cnr Nanotec di Lecce, e che nel suo nucleo fondatore vede anche l’IRCCS Istituto Tumori “Giovanni Paolo II” di Bari, il Centro di malattie neurodegenerative e dell’invecchiamento cerebrale dell’Università di Bari con sede presso l’Ospedale " G. Panico" di Tricase e la Regione Puglia.

 

L'evento apre la nuova stagione della rassegna divulgativa "Jam session Nanotec: note di scienza su scala nanometrica", un progetto Cnr Nanotec di Gabriella Zammillo, realizzato in collaborazione con Liberrima.

A condurre e moderare la serata, Marco Ferrazzoli, capo ufficio stampa dal CNR. Puoi scaricare la locandina da qui