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Article ; Online: From a Spark to a Flame: The Evolution of Diabetic Foot Disease in the Last Two Decades.

Meloni, Marco / Piaggesi, Alberto / Uccioli, Luigi

The international journal of lower extremity wounds

2024 , Page(s) 15347346241238480

Abstract: Despite many improvements have been achieved, diabetic foot disease (DFD) remains a clinical, social, and economic burden. In the last years, DFD showed an evolution of its characteristics with an increase of the ischaemic/neuro-ischaemic foot in ... ...

Abstract	Despite many improvements have been achieved, diabetic foot disease (DFD) remains a clinical, social, and economic burden. In the last years, DFD showed an evolution of its characteristics with an increase of the ischaemic/neuro-ischaemic foot in comparison to the pure neuropathic foot. Simultaneously, there was and increased incidence of concomitant cardiovascular co-morbidities, which influences the higher fragility of patients with DFS. Peripheral arterial disease (PAD) in subjects with diabetic foot seems to show a more aggressive pattern, being more distal and difficult to treat. Untreatable PAD remains the unmet need for clinicians and the main risk factor of major amputation in patients with diabetic foot ulcers. Authors aimed to describe the evolution of diabetic foot patients in the last two decades, describing also the current and future treatment which may improve outcomes in the next generations.
Language	English
Publishing date	2024-03-12
Publishing country	United States
Document type	Letter
ZDB-ID	2171119-7
ISSN	1552-6941 ; 1534-7346
ISSN (online)	1552-6941
ISSN	1534-7346
DOI	10.1177/15347346241238480
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Article ; Online: Effect of coarse graining in water models for the study of kinetics and mechanisms of clathrate hydrates nucleation and growth.

Lauricella, Marco / Meloni, Simone / Ciccotti, Giovanni

The Journal of chemical physics

2023 Volume 158, Issue 16

Abstract: Clathrate hydrates are crystalline inclusion compounds wherein a water framework encages small ...

Abstract	Clathrate hydrates are crystalline inclusion compounds wherein a water framework encages small guest atoms/molecules within its cavities. Among the others, methane clathrates are the largest fossil fuel resource still available. They can also be used to safely transport gases and can also form spontaneously under suitable conditions plugging pipelines. Understanding the crystallization mechanism is very important, and given the impossibility of experimentally identifying the atomistic path, simulations played an important role in this field. Given the large computational cost of these simulations, in addition to all-atom force fields, scientists considered coarse-grained water models. Here, we have investigated the effect of coarse-graining, as implemented in the water model mW, on the crystallization characteristics of methane clathrate in comparison with the all-atom TIP4P force field. Our analyses revealed that although the characteristics directly depending on the energetics of the water models are well reproduced, dynamical properties are off by the orders of magnitude. Being crystallization a non-equilibrium process, the altered kinetics of the process results in different characteristics of crystalline nuclei. Both TIP4P and mW water models produce methane clathrate nuclei with some amount of the less stable (in the given thermodynamic conditions) structure II phase and an excess of pentagonal dodecahedral cages over the tetrakaidecahedral ones regarding the ideal ratio in structure I. However, the dependence of this excess on the methane concentration in solution is higher with the former water model, whereas with the latter, the methane concentration in solution dependence is reduced and within the statistical error.
Language	English
Publishing date	2023-04-24
Publishing country	United States
Document type	Journal Article
ZDB-ID	3113-6
ISSN	1089-7690 ; 0021-9606
ISSN (online)	1089-7690
ISSN	0021-9606
DOI	10.1063/5.0140951
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Article ; Online: Hydrophobicity of molecular-scale textured surfaces: The case of zeolitic imidazolate frameworks, an atomistic perspective.

Le Donne, Andrea / Littlefair, Josh D / Tortora, Marco / Merchiori, Sebastiano / Bartolomé, Luis / Grosu, Yaroslav / Meloni, Simone

The Journal of chemical physics

2023 Volume 159, Issue 18

Abstract: ... porous materials, e.g., metal-organic frameworks. In particular, we investigate one such material ...

Abstract	Hydrophobicity has proven fundamental in an inexhaustible amount of everyday applications. Material hydrophobicity is determined by chemical composition and geometrical characteristics of its macroscopic surface. Surface roughness or texturing enhances intrinsic hydrophilic or hydrophobic characteristics of a material. Here we consider crystalline surfaces presenting molecular-scale texturing typical of crystalline porous materials, e.g., metal-organic frameworks. In particular, we investigate one such material with remarkable hydrophobic qualities, ZIF-8. We show that ZIF-8 hydrophobicity is driven not only by its chemical composition but also its sub-nanoscale surface corrugations, a physical enhancement rare amongst hydrophobes. Studying ZIF-8's hydrophobic properties is challenging as experimentally it is difficult to distinguish between the materials' and the macroscopic corrugations' contributions to the hydrophobicity. The computational contact angle determination is also difficult as the standard "geometric" technique of liquid nanodroplet deposition is prone to many artifacts. Here, we characterise ZIF-8 hydrophobicity via: (i) the "geometric" approach and (ii) the "energetic" method, utilising the Young-Dupré formula and computationally determining the liquid-solid adhesion energy. Both approaches reveal nanoscale Wenzel-like bathing of the corrugated surface. Moreover, we illustrate the importance of surface linker termination in ZIF-8 hydrophobicity, which reduces when varied from sp3 N to sp2 N termination. We also consider halogenated analogues of the methyl-imidazole linker, which promote the transition from nanoWenzel-like to nanoCassie-Baxter-like states, further enhancing surface hydrophobicity. Present results reveal the complex interface physics and chemistry between water and complex porous, molecular crystalline surfaces, providing a hint to tune their hydrophobicity.
Language	English
Publishing date	2023-11-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	3113-6
ISSN	1089-7690 ; 0021-9606
ISSN (online)	1089-7690
ISSN	0021-9606
DOI	10.1063/5.0173110
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Article: Modeling the Selectivity of Hydrotalcite-Based Catalyst in the Propane Dehydrogenation Reaction.

Festa, Giovanni / Contaldo, Palma / Martino, Marco / Meloni, Eugenio / Palma, Vincenzo

Industrial & engineering chemistry research

2023 Volume 62, Issue 41, Page(s) 16622–16637

Abstract: The propylene production processes currently used in the petrochemical industry (fluid catalytic cracking and steam cracking of naphtha and light diesel) are unable to meet the increase of propylene demand for industrial applications. For this reason, ... ...

Abstract	The propylene production processes currently used in the petrochemical industry (fluid catalytic cracking and steam cracking of naphtha and light diesel) are unable to meet the increase of propylene demand for industrial applications. For this reason, alternative processes for propylene production have been investigated, and among the others, the propane dehydrogenation (PDH) process, allowing the production of propylene as a main product, has been industrially implemented (e.g., Catofin and Oleflex processes). The main drawback of such processes is closely linked to the high temperature required to reach a sustainable propane conversion that affects catalyst stability due to coke formation on the catalyst surface. Accordingly, the periodic regeneration of the catalytic bed is required. In this work, the performance in the PDH reaction of different Sn-Pt catalysts, prepared starting by alumina- and hydrotalcite-based supports, is investigated in terms of propane conversion and selectivity to propylene in order to identify a more stable catalyst than the commercial ones. The experimental tests evidenced that the best performance was obtained using the catalyst prepared on commercial pellets of hydrotalcite PURALOX MG70. This catalyst has shown, under pressure conditions of 1 and 5 bar (in order to evaluate the potential future application in integrated membrane reactors), propane conversion values close to the thermodynamic equilibrium ones in all of the investigated temperature ranges (500-600 °C) and the selectivity was always higher than 95%. So, this catalyst was also tested in a stability run, performed at 500 °C and 5 bar: the results highlighted the loss of only 12% in the propane conversion with no changes in the selectivity to propylene. Properly designed experimental tests have also been performed in order to evaluate the kinetic parameters, and the developed mathematical model has been optimized to effectively describe the system behavior and the catalyst deactivation.
Language	English
Publishing date	2023-10-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	1484436-9
ISSN	1520-5045 ; 0888-5885
ISSN (online)	1520-5045
ISSN	0888-5885
DOI	10.1021/acs.iecr.3c01076
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Article ; Online: Bioactive Glass in a Multi Drug Resistance Osteomyelitis in Diabetic Foot: Case Report.

Panunzi, Andrea / Giurato, Laura / Meloni, Marco / Uccioli, Luigi

The international journal of lower extremity wounds

2022 , Page(s) 15347346221102643

Abstract: Diabetic foot osteomyelitis (DFO) is a clinical problem with high risk of amputation. The treatment of DFO is still an unsolved challenge. Surgical therapy, antibiotic therapy or conservative treatment are still debated for the timing and the ... ...

Abstract	Diabetic foot osteomyelitis (DFO) is a clinical problem with high risk of amputation. The treatment of DFO is still an unsolved challenge. Surgical therapy, antibiotic therapy or conservative treatment are still debated for the timing and the consequences. Long antibiotic therapies expose the selection of multidrug-resistant bacteria. Nowadays the use of new bone substitutes aims to support the load of the bone segments and to ensure the eradication of the infectious process after surgical treatment. A case report of digital osteomyelitis due to a multidrug resistant bacteria was treated with a conservative treatment and use of bioglass (Bonalive) that has the ability to inhibit bacterial growth. A long follow-up shows the resolution of infectious process, no ulcer recurrence and persistent recovery of its ability to walk. Our results agree with literature data and suggest that bioglass may be considered a useful option to manage DFO and achieve healing with a very conservative approach.
Language	English
Publishing date	2022-05-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	2171119-7
ISSN	1552-6941 ; 1534-7346
ISSN (online)	1552-6941
ISSN	1534-7346
DOI	10.1177/15347346221102643
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Article ; Online: Response to the letter of Tariq and colleagues on the paper "below‑the‑ankle arterial disease: a new marker of coronary artery disease in patients with diabetes and foot ulcers".

Meloni, Marco / Bellia, Alfonso / Giurato, Laura / Andreadi, Aikaterini / Uccioli, Luigi / Lauro, Davide

Acta diabetologica

2023 Volume 60, Issue 10, Page(s) 1417–1418

MeSH term(s)	Humans ; Diabetic Foot/diagnosis ; Coronary Artery Disease/diagnosis ; Ankle ; Foot Ulcer ; Diabetes Mellitus, Type 2/complications
Language	English
Publishing date	2023-06-27
Publishing country	Germany
Document type	Letter ; Comment
ZDB-ID	1097676-0
ISSN	1432-5233 ; 0940-5429
ISSN (online)	1432-5233
ISSN	0940-5429
DOI	10.1007/s00592-023-02134-8
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Article: Microwave assisted steam reforming in a high efficiency catalytic reactor

Meloni, Eugenio / Martino, Marco / Palma, Vincenzo

Renewable energy. 2022 Sept., v. 197

2022

Abstract: The current H₂ production in the EU (>27 kt/d) is almost entirely from natural gas via Methane Steam Reforming (MSR), a strongly endothermic catalytic process, carried out in packed-bed tubular reformers at 750–900 °C, with considerable CO₂ emissions. In ...

Abstract	The current H₂ production in the EU (>27 kt/d) is almost entirely from natural gas via Methane Steam Reforming (MSR), a strongly endothermic catalytic process, carried out in packed-bed tubular reformers at 750–900 °C, with considerable CO₂ emissions. In this context, the application of renewable electricity to MSR offers interesting perspectives for a reduced environmental footprint. The use of microwaves (MW) may result in efficient and faster method for generating the heat directly inside the catalytic volume. In this work, the role of the reactor configuration in the MW-assisted MSR has been investigated, by performing dedicated experimental tests in which a Ni-based catalyst (7 wt% with respect to the washcoat), prepared starting by silicon carbide monoliths, was tested in two different reactors. The results showed that the CH₄ conversion showed a good approach to the thermodynamic equilibrium values starting at about 750 °C at a value of gas hourly space velocity (GHSV) of 5000 h⁻¹ in the tests performed with the optimized reactor configuration. The energy efficiency of the two systems was about 50% and 73%, for the classical and optimized configuration respectively, and the latter had an energy consumption of 2.5 kWh/Nm³H₂ at 750 °C.
Keywords	carbon dioxide ; catalysts ; catalytic activity ; ecological footprint ; endothermy ; energy efficiency ; heat ; methane ; natural gas ; renewable electricity ; renewable energy sources ; silicon carbide ; steam
Language	English
Dates of publication	2022-09
Size	p. 893-901.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2001449-1
ISSN	1879-0682 ; 0960-1481
ISSN (online)	1879-0682
ISSN	0960-1481
DOI	10.1016/j.renene.2022.07.157
Database	NAL-Catalogue (AGRICOLA)

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Article: Improving referral of patients with diabetic foot ulcer to specialised diabetes foot care units.

Bouillet, Benjamin / Meloni, Marco / Ahluwalia, Raju

Journal of wound care

2021 Volume 30, Issue 10, Page(s) 782–784

MeSH term(s)	Diabetes Mellitus, Type 2 ; Diabetic Foot/therapy ; Foot Ulcer ; Humans ; Referral and Consultation
Language	English
Publishing date	2021-10-13
Publishing country	England
Document type	Editorial
ZDB-ID	1353951-6
ISSN	0969-0700
ISSN	0969-0700
DOI	10.12968/jowc.2021.30.10.782
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Article: ERS International Congress 2023: highlights from the Thoracic Surgery and Lung Transplantation Assembly.

Zajacova, Andrea / Scaramozzino, Marco Umberto / Bellini, Alice / Purwar, Pallavi / Ricciardi, Sara / Migliore, Marcello / Meloni, Federica / Esendagli, Dorina

ERJ open research

2024 Volume 10, Issue 2

Abstract: Five sessions presented at the European Respiratory Society Congress 2023 were selected by Assembly 8, consisting of thoracic surgeons and lung transplant professionals. Highlights covering management of adult spontaneous pneumothorax, malignant pleural ... ...

Abstract	Five sessions presented at the European Respiratory Society Congress 2023 were selected by Assembly 8, consisting of thoracic surgeons and lung transplant professionals. Highlights covering management of adult spontaneous pneumothorax, malignant pleural effusion, infectious and immune-mediated complications after lung transplantation, as well as the pro and con debate on age limit in lung transplantation and results of the ScanCLAD study were summarised by early career members, supervised by the assembly faculty.
Language	English
Publishing date	2024-04-08
Publishing country	England
Document type	Journal Article
ZDB-ID	2827830-6
ISSN	2312-0541
ISSN	2312-0541
DOI	10.1183/23120541.00854-2023
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Article: Peripheral Blood Mononuclear Cells: A New Frontier in the Management of Patients with Diabetes and No-Option Critical Limb Ischaemia.

Meloni, Marco / Giurato, Laura / Andreadi, Aikaterini / Bellizzi, Ermanno / Bellia, Alfonso / Lauro, Davide / Uccioli, Luigi

Journal of clinical medicine

2023 Volume 12, Issue 19

Abstract: The current study aimed to evaluate the effectiveness of peripheral blood mononuclear cell (PB-MNC) therapy as adjuvant treatment for patients with diabetic foot ulcers (DFUs) and no-option critical limb ischaemia (NO-CLI). The study is a prospective, ... ...

Abstract	The current study aimed to evaluate the effectiveness of peripheral blood mononuclear cell (PB-MNC) therapy as adjuvant treatment for patients with diabetic foot ulcers (DFUs) and no-option critical limb ischaemia (NO-CLI). The study is a prospective, noncontrolled, observational study including patients with neuro-ischaemic DFUs and NO-CLI who had unsuccessful revascularization below the ankle (BTA) and persistence of foot ischaemia defined by TcPO2 values less than 30 mmHg. All patients received three cycles of PB-MNC therapy administered through a "
Language	English
Publishing date	2023-09-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662592-1
ISSN	2077-0383
ISSN	2077-0383
DOI	10.3390/jcm12196123
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