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Papers by Roberto Caponetto

Research paper thumbnail of Internet of Things in Smart Grid - A Comprehensive Review

Internet of Things in Smart Grid - A Comprehensive Review, 2024

Research paper thumbnail of Preliminary investigation of the antibacterial efficacy of a handheld Plasma Gun source for endodontic procedures

Preliminary investigation of the antibacterial, 2023

The investigation of the efficiency of a handheld Plasma Gun (PG) in the decontamination of tooth... more The investigation of the efficiency of a handheld Plasma Gun (PG) in the decontamination of tooth root canals is here reported. The antibacterial efficacy of the PG was first assessed on Enterococcus faecalis contaminated agar plates to determine optimal operating conditions that were then quantitatively evaluated treating contaminated liquid suspensions. Moreover, two different procedures for the inactivation of bacteria in realistic tooth models, resembling procedures conventionally adopted in endodontic practice, were investigated: (A) irrigation of contaminated tooth models with plasma activated water (indirect treatment) produced using the PG and (B) direct exposure of the contaminated tooth models to the plasma plume produced by the PG (direct treatment). The experiments were performed with the root canal model both in wet (root canal filled with bacteria suspension) and in dry (root canal contaminated and dried) conditions. From the obtained results, the direct treatment under dry conditions turned out to be the most effective, leading to a bacterial load mean reduction of 4.1.

Research paper thumbnail of Modeling, Project, Numerical Simulation, and AES Temperature Diagnostics of an Inductively Coupled Plasma Torch for the Deposition of High-Purity Fused Silica for Optical Waveguide Production

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2018

An inductively coupled plasma torch has been designed for the synthesis of high-purity, low-OH, f... more An inductively coupled plasma torch has been designed for the synthesis of high-purity, low-OH, fused silica in fiber optics preform production by means of a new technological process, within the framework of plasma outside deposition. The torch, working at atmospheric pressure, is attached to a 13.56 MHz, 5.4 kW RF generator; system geometry, inlet gas velocities, heat exchange, and electrical coil configurations have been selected in accordance with the physical modeling and numerical simulation results. Temperature, velocity, and electromagnetic fields have been computed by using a two-dimensional (2-D) fluidmagnetic code assuming LTE for the plasma. A 2-D treatment of electromagnetic field equations has been performed using boundary conditions, treating the torch as a point magnetic dipole, within a grid extending outside the plasma zone; results for the electric field in the torch will be presented in different steps of plasma initiation in test Ar discharges. Temperature diagnostics have been performed within atomic emission spectroscopy techniques: side-on experimental profiles have been treated through Abel inversion. Results obtained with the Boltzmann plot method (lateral and radial excitation temperature profiles) are presented, and conclusions are drawn concerning possible plasma deviations from LTE conditions. The first results on the deposition of soot silica will be described, together with torch operating conditions and reactive mixture O2 + SiCl4 characteristics.

Research paper thumbnail of Modelling for the optimization of the reaction chamber in silicon nanoparticle synthesis by a radio-frequency induction thermal plasma

Research paper thumbnail of Polylactic Acid (PLA) as a Bioplastic and its Possible Applications in the Food Industry

The Auk, 2021

The user hasrequested enhancement of thedownloaded file.

Research paper thumbnail of A Review of Systems and Technologies for Smart Homes and Smart Grids

In the actual era of smart homes and smart grids, advanced technological systems that allow the a... more In the actual era of smart homes and smart grids, advanced technological systems that allow the automation of domestic tasks are developing rapidly. There are numerous technologies and applications that can be installed in smart homes today. They enable communication between home appliances and users, and enhance home appliances' automation, monitoring and remote control capabilities. This review article, by introducing the concept of the smart home and the advent of the smart grid, investigates technologies for smart homes. The technical descriptions of the systems are presented and point out advantages and disadvantages of each technology and product today available on the market. Barriers, challenges, benefits and future trends regarding the technologies and the role of users have also been discussed.

Research paper thumbnail of Titanium-rich TS-1 zeolite for a preliminary neutronic design

163e172, 2023

The exploration of highly efficient catalysts based on nano-sized Ti-rich titanosilicate zeolites ... more The exploration of highly efficient catalysts based on nano-sized Ti-rich titanosilicate zeolites with controllable active titanium species is of great importance in zeolite catalytic reactions. Herein, we reported an efficient and facile synthesis of nano-sized Ti-rich TS-1 (MFI) zeolites by replacing tetrabutyl orthotitanate (TBOT) with tetrabutyl orthotitanate tetramer (TBOT-tetramer) as the titanium source. The introduced TBOT-tetramer slowed down the zeolite crystallization process, and accordingly balanced the rate of incorporating Ti and the crystal growth and inhibited the massive formation of anatase species. Notably, the prepared Ti-rich TS-1 zeolite sample had a Si/Ti as low as 27.6 in contrast to conventional one with a molar ratio of 40. The TBOT-tetramer endowed the titanosilicate zeolites with enriched active titanium species and enlarged external surface area. It also impeded the formation of anatase species, resulting in superior catalytic behavior toward the oxidative desulfurization of dibenzothiophene compared with the conventional TS-1 zeolite counterpart prepared with TBOT.
© 2023 Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Com-munications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Research paper thumbnail of Internet of Things in Smart Grid - A Comprehensive Review

Internet of Things in Smart Grid - A Comprehensive Review, 2024

Research paper thumbnail of Preliminary investigation of the antibacterial efficacy of a handheld Plasma Gun source for endodontic procedures

Preliminary investigation of the antibacterial, 2023

The investigation of the efficiency of a handheld Plasma Gun (PG) in the decontamination of tooth... more The investigation of the efficiency of a handheld Plasma Gun (PG) in the decontamination of tooth root canals is here reported. The antibacterial efficacy of the PG was first assessed on Enterococcus faecalis contaminated agar plates to determine optimal operating conditions that were then quantitatively evaluated treating contaminated liquid suspensions. Moreover, two different procedures for the inactivation of bacteria in realistic tooth models, resembling procedures conventionally adopted in endodontic practice, were investigated: (A) irrigation of contaminated tooth models with plasma activated water (indirect treatment) produced using the PG and (B) direct exposure of the contaminated tooth models to the plasma plume produced by the PG (direct treatment). The experiments were performed with the root canal model both in wet (root canal filled with bacteria suspension) and in dry (root canal contaminated and dried) conditions. From the obtained results, the direct treatment under dry conditions turned out to be the most effective, leading to a bacterial load mean reduction of 4.1.

Research paper thumbnail of Modeling, Project, Numerical Simulation, and AES Temperature Diagnostics of an Inductively Coupled Plasma Torch for the Deposition of High-Purity Fused Silica for Optical Waveguide Production

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2018

An inductively coupled plasma torch has been designed for the synthesis of high-purity, low-OH, f... more An inductively coupled plasma torch has been designed for the synthesis of high-purity, low-OH, fused silica in fiber optics preform production by means of a new technological process, within the framework of plasma outside deposition. The torch, working at atmospheric pressure, is attached to a 13.56 MHz, 5.4 kW RF generator; system geometry, inlet gas velocities, heat exchange, and electrical coil configurations have been selected in accordance with the physical modeling and numerical simulation results. Temperature, velocity, and electromagnetic fields have been computed by using a two-dimensional (2-D) fluidmagnetic code assuming LTE for the plasma. A 2-D treatment of electromagnetic field equations has been performed using boundary conditions, treating the torch as a point magnetic dipole, within a grid extending outside the plasma zone; results for the electric field in the torch will be presented in different steps of plasma initiation in test Ar discharges. Temperature diagnostics have been performed within atomic emission spectroscopy techniques: side-on experimental profiles have been treated through Abel inversion. Results obtained with the Boltzmann plot method (lateral and radial excitation temperature profiles) are presented, and conclusions are drawn concerning possible plasma deviations from LTE conditions. The first results on the deposition of soot silica will be described, together with torch operating conditions and reactive mixture O2 + SiCl4 characteristics.

Research paper thumbnail of Modelling for the optimization of the reaction chamber in silicon nanoparticle synthesis by a radio-frequency induction thermal plasma

Research paper thumbnail of Polylactic Acid (PLA) as a Bioplastic and its Possible Applications in the Food Industry

The Auk, 2021

The user hasrequested enhancement of thedownloaded file.

Research paper thumbnail of A Review of Systems and Technologies for Smart Homes and Smart Grids

In the actual era of smart homes and smart grids, advanced technological systems that allow the a... more In the actual era of smart homes and smart grids, advanced technological systems that allow the automation of domestic tasks are developing rapidly. There are numerous technologies and applications that can be installed in smart homes today. They enable communication between home appliances and users, and enhance home appliances' automation, monitoring and remote control capabilities. This review article, by introducing the concept of the smart home and the advent of the smart grid, investigates technologies for smart homes. The technical descriptions of the systems are presented and point out advantages and disadvantages of each technology and product today available on the market. Barriers, challenges, benefits and future trends regarding the technologies and the role of users have also been discussed.

Research paper thumbnail of Titanium-rich TS-1 zeolite for a preliminary neutronic design

163e172, 2023

The exploration of highly efficient catalysts based on nano-sized Ti-rich titanosilicate zeolites ... more The exploration of highly efficient catalysts based on nano-sized Ti-rich titanosilicate zeolites with controllable active titanium species is of great importance in zeolite catalytic reactions. Herein, we reported an efficient and facile synthesis of nano-sized Ti-rich TS-1 (MFI) zeolites by replacing tetrabutyl orthotitanate (TBOT) with tetrabutyl orthotitanate tetramer (TBOT-tetramer) as the titanium source. The introduced TBOT-tetramer slowed down the zeolite crystallization process, and accordingly balanced the rate of incorporating Ti and the crystal growth and inhibited the massive formation of anatase species. Notably, the prepared Ti-rich TS-1 zeolite sample had a Si/Ti as low as 27.6 in contrast to conventional one with a molar ratio of 40. The TBOT-tetramer endowed the titanosilicate zeolites with enriched active titanium species and enlarged external surface area. It also impeded the formation of anatase species, resulting in superior catalytic behavior toward the oxidative desulfurization of dibenzothiophene compared with the conventional TS-1 zeolite counterpart prepared with TBOT.
© 2023 Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Com-munications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).