Article
Chemistry, Physical
Feng Chen, Nguyen Xuan Quy, Jihoon Kim, Yukio Hama
Summary: Experiments were conducted to analyze the effects of three representative surface protective materials on aesthetics and durability under accelerated weathering for 5000 hours. Results showed varying impacts on aesthetic properties and durability, with fluor-resin types improving water permeability but causing surface darkening.
Article
Multidisciplinary Sciences
Farhan Ahmad, Muhammad Akbar, Rahmat Ullah
Summary: The long-term multi-stress aging performance of silicone-based polymeric insulators was studied in this research, with a specimen containing 2% nano-silica and 20% micro-silica showing the most superior performance among the investigated samples. The use of silicone rubber hybrid insulators could potentially increase the reliability of the expanding grid in Pakistan, which has been facing challenges related to pollution-induced flashovers.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Civil
Yonggui Wang, Xuetong Zhang, Jinjin Fang, Xingguo Wang
Summary: In this study, basalt fiber (BF) and nanosilica (NS) were used to improve the mechanical properties of recycled concrete (RC). The results showed that BF enhances the integrity and impact compressive strength, while NS reduces pore content and fiber surface corrosion, leading to increased compactness and bridging effect.
KSCE JOURNAL OF CIVIL ENGINEERING
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
K. Ashwini, P. Srinivasa Rao
Summary: The study found that concrete with alccofine and nano-silica as partial replacements of cement performed better in terms of strength and durability compared to control mixes when exposed to freeze-thaw cycles.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Engineering, Mechanical
Matteo Benedetti, Mattia Orempuller, Francesca Russo, Vigilio Fontanari, Stefano Rossi
Summary: This study investigates the fatigue corrosion behavior of direct drive friction welded ASTM A105 and AISI 304L steels joints. The detrimental effect of the corrosive environment and the positive role played by the cathodic protection have been quantified. Different failure sites and mechanisms were observed for different corrosion fatigue conditions.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Electrochemistry
Tambi Ramde, Stefano Rossi, Michele Fedel, Lucien Bonou
Summary: In this study, a thin hybrid organic-inorganic coating was developed using polyorganosilazane (PSZ) material to protect copper from corrosion. The influence of PSZ ratio and relative humidity on the coating performance was investigated. The coating structure and morphology were evaluated using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The barrier properties of the coated samples were determined through potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. The results showed that a PSZ coating thickness of about 2 μm cured at 25°C and 80% RH provided enhanced protection for the copper substrate.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Mathematics, Applied
Vitonofrio Crismale, Simone Del Vecchio, Stefano Rossi
Summary: This paper characterizes the concrete monotone C*-algebra in terms of generators and relations and shows that it is UHF. It also provides an explicit Bratteli diagram for this algebra, which can be used to compute its K-theory.
LINEAR ALGEBRA AND ITS APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Stefano Rossi, Flavio Deflorian, Michele Fedel
Summary: Accelerated methods are necessary to test organic coatings in less time, as testing under natural conditions is time-consuming. Investigating the correlation between accelerated and natural aging test results is important due to the inability of a simulated environment to fully reproduce actual operating conditions. This study examines the natural aging of painted steel, aluminum, and hot-dip galvanized steel under continental climate conditions for 1 year. The extent of deterioration is compared with samples weathered through accelerated testing, using various measurement techniques. The results highlight challenges in predicting the durability of organic coatings for metal structures.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2023)
Article
Physiology
Stefano Rossi, Rosario Statello, Giovanna Pela, Fabio Leonardi, Aderville Cabassi, Ruben Foresti, Giacomo Rozzi, Francesco Paolo Lo Muzio, Luca Carnevali, Andrea Sgoifo, Luca Magnani, Sergio Callegari, Paolo Pastori, Alessandro Tafuni, Domenico Corradi, Michele Miragoli, Emilio Macchi
Summary: The effects of excitability, refractoriness, and impulse conduction on arrhythmias in the aged myocardium have been studied independently, but their combined effects are not well understood. This study aims to explore the relationship between cardiac electrophysiological parameters and arrhythmia vulnerability in the senescent heart. Multiple-lead epicardial potential mapping was used to analyze control and aged rat hearts. The senescent heart showed prolonged electrogram intervals and waves during sinus rhythm, indicating delayed tissue activation and recovery. In addition, ventricular pacing increased cardiac excitability, effective refractory period, and dispersion of refractoriness in the aged animal, accompanied by impaired impulse propagation. Furthermore, both spontaneous and induced arrhythmias were more common in senescent cardiac tissue. Histopathological evaluation revealed connective tissue deposition and myocytolysis in the atria, and interstitial fibrosis in the ventricular subendocardium in aged hearts. These findings suggest that enhanced arrhythmogenesis in the elderly is a multifactorial process involving increased excitability, dispersion of refractoriness, and conduction inhomogeneity.
PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY
(2023)
Article
Chemistry, Physical
Massimo Calovi, Stefano Rossi
Summary: This study investigated the impact of hollow glass microspheres of different sizes derived from glass industry waste on the durability and thermal behavior of waterborne paint. Electron microscopy was used to analyze the distribution of the spheres and their influence on layer morphology. Mechanical properties of the coatings were evaluated using hardness and abrasion tests. The study also examined the effect of the glass microspheres on durability through salt spray exposure and electrochemical impedance measurements, as well as the thermal behavior of the coatings through accelerated degradation testing.
Article
Materials Science, Multidisciplinary
Massimo Calovi, Stefano Rossi
Summary: Olive pit powders were added to a polyurethane-acrylate paint to investigate the impact of functionalization processes on filler hydrophobicity and the durability of the paint. Electron microscopy and colorimetric tests were used to analyze the morphology and appearance of the coatings. The resilience of the coating and the hydrophobic/hydrophilic properties of the fillers were evaluated through various measurements, demonstrating that properly functionalized bio-based fillers can enhance the barrier performance and durability of waterborne paints.
Article
Surgery
Lorenzo Crepaz, Alberto Sartori, Mauro Podda, Monica Ortenzi, Alberto Di Leo, Cesare Stabilini, Michele Carlucci, Stefano Olmi, SICE ISHAWS Collaborative Grp
Summary: Minimally invasive abdominal wall surgery is increasingly used worldwide, with Italian surgeons preferring this approach in elective cases. However, open surgery is still preferred in emergency settings. There is a need for consensus on the best surgical approach for incisional hernias, especially in emergency situations.
UPDATES IN SURGERY
(2023)
Article
Surgery
Mauro Podda, Gianluca Pellino, Salomone Di Saverio, Federico Coccolini, Daniela Pacella, Stefano Piero Bernardo Cloffi, Francesco Vlrdis, Andrea Balla, Benedetto Ielpo, Francesco Pata, Gaetano Poillucci, Monica Ortenzi, Dimitrios Damaskos, Belinda De Simone, Massimo Sartelli, Ari Leppaniemi, Kumar Jayant, Fausto Catena, Antonio Giuliani, Marcello Di Martino, Adolfo Pisanu
Summary: The identification of high-risk patients is crucial in the early stages of infected pancreatic necrosis (IPN) to determine appropriate management strategies. This study found that history of uncontrolled arterial hypertension, qSOFA score, renal failure, haemodynamic failure were independent predictors of mortality in IPN patients. Cholangitis, abdominal compartment syndrome, and gastrointestinal/intra-abdominal bleeding were associated with increased risk of mortality. Upfront open surgical necrosectomy was strongly associated with higher mortality risk, while endoscopic drainage of pancreatic necrosis and enteral nutrition were protective factors.
UPDATES IN SURGERY
(2023)
Article
Materials Science, Multidisciplinary
Massimo Calovi, Stefano Rossi
Summary: The aim of this study was to assess the advantages and disadvantages of using spirulina-derived pigment as a bio-based colorant for wood impregnators. The impact of this environmentally friendly pigment on the aesthetic properties and durability of water-based wood impregnators was investigated. The study highlighted the remarkable coloration achieved through the use of spirulina-based additive, but also raised concerns about its vulnerability to deterioration caused by UV-B radiation and the fading of the phycocyanin component found in spirulina. Proper measures need to be implemented to safeguard the bio-based pigment from external factors for its long-term performance.
Article
Orthopedics
Stefano Marco Paolo Rossi, Rudy Sangaletti, Eugenio Jannelli, Davide Bova, Alice Montagna, Francesco Benazzo
Summary: The aim of this study was to evaluate the clinical outcomes and survival of total knee arthroplasty (TKA) with a medially congruent insert, with or without posterior cruciate ligament (PCL) sparing, at a medium-term follow-up. The results showed that the preservation or sacrifice of the PCL did not affect the clinical outcomes and survival of the TKA with a medially congruent insert.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Ilaria Mileti, Simone Pasinetti, Juri Taborri, Fabrizio Patane, Matteo Lancini, Stefano Rossi
Summary: This study proposes a smart insole sensorized with piezoresistive textile, which can collect information about gait phase duration and center of pressure. The accuracy of the sensor was validated by comparing it with two force platforms, and it was found that the insole can accurately measure the duration of gait phases and the displacement trend of the center of pressure.
2023 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC
(2023)
Article
Emergency Medicine
Luca Andriollo, Rudy Sangaletti, Lorenzo Are, Loris Perticarini, Francesco Benazzo, Stefano Marco Paolo Rossi
Summary: The study aimed to evaluate the functional and clinical outcomes of bipolar hemiarthroplasty in elderly patients with intertrochanteric fractures. The results showed that long stemmed bipolar hemiarthroplasty can be considered a safe procedure, especially in patients over 80 with comorbidities and short life expectancy.
INTERNATIONAL JOURNAL OF BURNS AND TRAUMA
(2023)
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)
