Article
Materials Science, Multidisciplinary
Gustavo Schinazi, Jose Roberto Moraes d'Almeida, Jonathan K. Pokorski, David A. Schiraldi
Summary: Bio-based flame retardants were used to reduce the flammability of ABS, achieving comparable results to commercial brominated ABS. The best-performing compositions significantly lowered ABS's peak heat release rates, but also led to an increase in modulus and a loss in toughness. Synergistic interactions between the FRs and ABS matrix, as well as between different FR components, were found to be responsible for the reduced flammability.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Environmental Sciences
Roni Mallick, Prabu Vairakannu
Summary: This study focuses on producing clean syngas by plasma gasification of ABS-based computer keyboard plastic waste using CO2 as a gasifying agent. The optimal process parameters were determined to achieve a higher calorific value and percentage of H2 and CO in the syngas. The system also demonstrated high energy and exergy efficiency, low cost, and lower global warming potential.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Chemistry, Multidisciplinary
Alejandra Ruiz-Clavijo, Olga Caballero-Calero, Marisol Martin-Gonzalez
Summary: This review summarizes the latest developments in anodic porous alumina, covering its structure, fabrication, and applications, as well as the impact of different nanostructured morphologies in various fields. By studying nanoporous alumina, it provides a reference for designing structures with novel properties in the future and expanding its applications in different fields.
Article
Polymer Science
Johannes Steindl, Katharina Ehrmann, Christian Gorsche, Ching-Chung Huang, Thomas Koch, Patrick Steinbauer, Andreas Rohatschek, Orestis G. Andriotis, Philipp J. Thurner, Alexander Prado-Roller, Juergen Stampfl, Robert Liska
Summary: The transfer of ABS microstructure to photopolymers via a designed monomer system has been achieved, resulting in new materials with high toughness.
POLYMER INTERNATIONAL
(2022)
Article
Polymer Science
Ashraf Kasmi, Joseph Marae Djouda, Francois Hild
Summary: This study uses integrated digital image correlation to identify the constitutive parameters of two configurations of ABS samples and shows that a calibrated isotropic elastoplastic model can accurately describe the behavior of 3D printed ABS parts with different internal infill strategies.
Article
Engineering, Environmental
Xiaojuan Bai, Ping Liang, Mei Zhang, Shiqiong Gong, Lihua Zhao
Summary: ABS, as one of the most extensively used engineering polymers, was studied for recycling purposes using a torque rheometer. The processing at different temperatures and cycles showed an increase in large size soluble polymeric components, possibly due to crosslinking reactions in grafted polybutadiene. Reprocessing significantly affected the ABS resin, as indicated by chemical analysis after multiple extrusion cycles.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Liberata Guadagno, Francesca Aliberti, Raffaele Longo, Marialuigia Raimondo, Roberto Pantani, Andrea Sorrentino, Michelina Catauro, Luigi Vertuccio
Summary: This study presents a simple method for producing 3D printed artefacts with multiscale configurations and controlled electrical resistivity using acrylonitrile butadiene styrene and carbon nanotubes (CNTs). By selecting appropriate printing parameters, highly orientated conductive pathways are achieved using aligned CNTs. The printing process increases the electrical conductivity from 6.88 x 10-2 to 11.9 S/m. The spatial domain orientation leads to a decrease in electrical resistance. The ability to selectively heat the part was demonstrated by changing the applied voltage, showing potential applications in electronic devices, thermistors, heat exchangers, and electromagnetic interference shielding.
MATERIALS & DESIGN
(2023)
Article
Polymer Science
Xiangning Meng, Yingchun Li, Najla AlMasoud, Wensheng Wang, Taghrid S. Alomar, Jie Li, Xinming Ye, Hassan Algadi, Ilwoo Seok, Handong Li, Ben Bin Xu, Na Lu, Zeinhom M. El-Bahy, Zhanhu Guo
Summary: For the first time, styrene-butadiene-glycidyl methacrylate (SBG) was incorporated into the recovered acrylonitrile-butadiene-styrene (rABS) and recycled high impact polystyrene (rHIPS) system by melt blending to increase effectiveness. The epoxy groups in SBG react with the butadiene aging groups in rABS/rHIPS, resulting in the formation of ester groups, which repairs broken molecular chains, improves phase compatibility, and enhances mechanical properties of the blends. Adding SBG significantly improves the molecular weight, impact strength, tensile strength, flexural strength, storage modulus, loss modulus, and complex viscosity of the blends. When SBG content is 8 wt%, the notch impact strength of the blends increases by 108% compared to rABS/rHIPS. Furthermore, the interface between the polybutadiene (PB) phase and styrene-acrylonitrile copolymer (SAN) phase becomes less distinct, improving the compatibility and enabling high-value recovery of rABS/rHIPS.
Article
Polymer Science
Karla J. Merazzo, Ander Garcia Diez, Carmen R. Tubio, Juan Carlos Manchado, Ramon Malet, Marc Perez, Pedro Costa, Senentxu Lanceros-Mendez
Summary: This study investigates the magnetic properties of ABS-based composites for their potential use in magnetoactive systems. Different amounts of permalloy (Py-Ni75Fe20Mo5) nanoparticles were added to the ABS matrix to provide the desired magnetic properties. The composites showed no significant changes in thermal properties and exhibited improved mechanical properties with increasing filler content. The saturation magnetization of the composites also increased with increasing Py content. Overall, the minor enhancements in mechanical and magnetic properties make ABS composites suitable for applications in magnetic sensors, actuators, and magnetic field shielding.
Article
Materials Science, Coatings & Films
M. Winnicki, A. Gibas, A. Baszczuk, M. Jasiorski
Summary: The study investigated the deposition mechanism of self-synthesized titanium dioxide powders on ABS polymer by low-pressure cold spraying. It was found that using soft amorphous titanium dioxide agglomerates can reduce erosion of the substrate and provide a satisfactory coating. Additionally, the results showed that the highest deposition efficiency was achieved by using a lower working gas temperature in all types of used powders.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Chemical
Tongtong Bian, Ning Song, Yuan Yu, Tianyang Zhang, Zhichao Lin, Yajie Bu, Qingwu Zhang, Tingting Chen, Zhongwei Chen, Jinzhi Li, Juncheng Jiang
Summary: This paper studied the explosion properties and pyrolysis mechanism of ABS dust during processing, as well as the inhibitory effects of sodium bicarbonate (NaHCO3) on ABS dust. The results showed that NaHCO3 effectively reduced the ignition sensitivity and explosion severity of ABS dust by increasing its mass fraction. Adding 50 wt% NaHCO3 could mitigate the explosion hazard to an acceptable level. The incorporation of NaHCO3 enhanced the heat stability of ABS dust, interrupted the combustion chain reaction, and inhibited the propagation of the explosion.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Materials Science, Composites
K. Vigneshwaran, N. Venkateshwaran, Naresh Kakur
Summary: This study examines the impact of process parameters on the interlaminar bonding performance of 3D printed composites and finds that an increase in layer height can either increase or decrease the interlaminar shear strength. Additionally, carbon fiber reinforced ABS specimens exhibit good interlaminar shear strength and layer adhesive compared to regular ABS specimens.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Article
Engineering, Mechanical
Soran Hassanifard, Kamran Behdinan
Summary: This study examines the ratcheting response of ABS polymer reinforced with graphene nanoplatelets in its filament and 3D-printed forms. The results show that adding a suitable amount of GNPs can increase the fatigue life and reduce the strain ratcheting accumulation of the filament. The ratcheting behavior of the 3D-printed parts is influenced by various factors.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Polymer Science
Huan Zhang, Fang Ding, Tingli Liu, Lunyang Liu, Yunqi Li
Summary: The research evaluated the applicability of the additivity principle for the mechanical properties of ABS resins, finding that the majority of resins satisfy the principle for Young's modulus and tensile strength, but the elongation at break can vary due to different combinations and contributed weights.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Applied
Marie Kubicova, Elise Puchta, Sebastian Saeger, Constanze Hug, Sandra Hofmann, Thomas J. Simat
Summary: SAN and ABS, as food contact materials, contain oligomers such as trimers which are the main extractable substances. Migration testing showed that the migration of trimers into 50% ethanol as a food simulant overestimated the actual migration into milk.
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
(2022)
Article
Chemistry, Physical
Emmanuelle Feschet-Chassot, Philip Chennell, Regis Cueff, Benedicte Mailhot-Jensen, Valerie Sautou
SURFACES AND INTERFACES
(2020)
Article
Pharmacology & Pharmacy
Philip Chennell, Mouloud Yessaad, Florence Abd El Kader, Mireille Jouannet, Mathieu Wasiak, Yassine Bouattour, Valerie Sautou
Article
Biochemistry & Molecular Biology
Nicolas Kambia, Isabelle Severin, Amaury Farce, Laurence Dahbi, Thierry Dine, Emmanuel Moreau, Valerie Sautou, Marie-Christine Chagnon
Summary: DEHT, an alternative to DEHP, shows lower migration from PVC and lack of reprotoxicity. However, more data is needed to support the safety of its metabolites on thyroid system hormonal properties. Study findings suggest lack of interactions between DEHT metabolites and TRs, highlighting the potential benefits of DEHT.
Article
Nanoscience & Nanotechnology
Meriem Sahnoune, Nicolas Tokhadze, Julien Devemy, Alain Dequidt, Florent Goujon, Philip Chennell, Valerie Sautou, Patrice Malfreyt
Summary: Characterizing the sorption of drugs onto polyvinylchloride (PVC) and polyethylene (PE) materials in terms of thermodynamic adsorption properties and atomistic details is crucial for developing alternative materials that can reduce drug sorption phenomena and plasticizer release. Experiments and sophisticated calculations were used to study the sorption of paracetamol and diazepam on PE and PVC surfaces, with simulated Gibbs free energies of adsorption matching experimental interpretations. Furthermore, a molecular-scale characterization of the polymer-drug-water interface was conducted, exploring local properties such as density, orientation, and diffusion.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Lise Bernard, Yassine Bouattour, Morgane Masse, Benoit Boeuf, Bertrand Decaudin, Stephanie Genay, Celine Lambert, Emmanuel Moreau, Bruno Pereira, Jeremy Pinguet, Damien Richard, Valerie Sautou
Summary: Neonates in the NICU are significantly exposed to plasticizers, with exposure varying depending on the type of medical devices used. The study found high levels of exposure to DINP via transfusion and infusion MD, and to DEHP via ECMO and respiratory assistance MD. The exposure doses exceeded the derived no-effect level by a significant margin, indicating a potential risk of toxicity from the metabolites.
Article
Biotechnology & Applied Microbiology
Frederic Chapelle, Lucie Manciet, Bruno Pereira, Anna Sontheimer, Jerome Coste, Youssef El Ouadih, Ruxandra Cimpeanu, Dimitri Gouot, Yuri Lapusta, Beatrice Claise, Valerie Sautou, Yassine Bouattour, Ana Marques, Adrien Wohrer, Jean-Jacques Lemaire
Summary: The findings highlight the impact of hemisphere coupling and electrode stiffness on electrode deformations, as well as differences in deformations based on tissue layers, electrode type, and hemisphere-brain-shift effect. These results provide valuable insights for the development of intracerebral electrode design and surgical procedures.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Editorial Material
Biochemistry & Molecular Biology
Lise Bernard, Yassine Bouattour, Morgane Masse, Benoit Boeuf, Bertrand Decaudin, Stephanie Genay, Celine Lambert, Emmanuel Moreau, Bruno Pereira, Jeremy Pinguet, Damien Richard, Valerie Sautou
Article
Pharmacology & Pharmacy
P. Plaidy, P. Chennell, I Wamen, L. Germon, B. Boeuf, V Sautou, L. Bernard
Summary: The objective of this study was to investigate and characterize the infusion methods used in French neonatal and neonatal intensive care units. The results showed that there is a high degree of variability in the neonatal infusion practices in France, which exposes patients to potential risks of content/container interactions. This study provides valuable insights for analyzing and anticipating these risks.
ANNALES PHARMACEUTIQUES FRANCAISES
(2022)
Article
Toxicology
Laurence Dahbi, Amaury Farce, Nicolas Kambia, Isabelle Severin, Thierry Dine, Emmanuel Moreau, Valerie Sautou, Marie-Christine Chagnon
Summary: This study investigated the endocrine-disrupting effects of metabolites of the plasticizer TEHTM, commonly used in medical devices. The results showed that two of the metabolites (4-MEHTM and 2/1-MEHTM) had effects on hormone activity in vitro. However, the concentrations of these metabolites found in human urine were unlikely to have active effects on estrogen, androgen, thyroid receptors, and steroidogenesis-mediated effects.
ARCHIVES OF TOXICOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yassine Bouattour, Florent Neflot-Bissuel, Mounir Traikia, Anne-Sophie Biesse-Martin, Robin Frederic, Mouloud Yessaad, Mireille Jouannet, Mathieu Wasiak, Philip Chennell, Valerie Sautou
Summary: Ceftazidime and vancomycin are used to treat bacterial keratitis, but their physical incompatibility prevents them from being mixed in a single container for ophthalmic administration. Researchers investigated the use of cyclodextrins to prevent this incompatibility and determined optimal conditions for a formulation with low turbidity and particle count. The formulation was found to inhibit incompatibility at pH levels above 7.3 while maintaining antibacterial activity.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Pharmacology & Pharmacy
Nicolas Tokhadze, Philip Chennell, Bruno Pereira, Benedicte Mailhot-Jensen, Valerie Sautou
Summary: The study experimentally investigated the drug loss caused by silicone and polyurethane implantable catheters, finding that polyurethane catheters caused the highest losses of diazepam and insulin.
Drug concentrations were monitored by liquid chromatography, with no loss of paracetamol observed in the complete setups.
Catheters were shown to be the cause of some extremely high drug losses that could not be countered by optimizing the extension set in the setup.
Article
Pharmacology & Pharmacy
Marion Barrieu, Philip Chennell, Mouloud Yessaad, Yassine Bouattour, Mathieu Wasiak, Mireille Jouannet, Yoann Le Basle, Valerie Sautou
Summary: This study evaluated the physicochemical stability of a preservative-free tacrolimus formulation at different storage temperatures. The results showed that the 0.2 mg/mL and 1 mg/mL tacrolimus ophthalmic solutions remained stable when stored at 5 degrees Celsius, but signs of chemical instability were observed when stored at 25 degrees Celsius and 35 degrees Celsius.
Article
Environmental Sciences
Raphaelle Lautraite, Lise Bernard, Pascale Halle, Philip Chennell, Yoann Le Basle, Justyna Kanold, Valerie Sautou
Summary: This study aimed to evaluate the migration of plasticizers during a pre-CAR-T cell leukapheresis procedure and the exposure of patients and their lymphocytes to them. The results showed that DEHP was present in the leukapheresis kit, with migration levels ranging from 25% to 59%. A total of 98.90±11.42 mg of DEHP was released into the simulant. This exposure could potentially impact the health of patients and the efficiency of CAR-T cells.
Article
Pharmacology & Pharmacy
J. Bellegarde, L. Bernard, P. Chennell, V Sautou
Summary: Our study aimed to develop and optimize a structured and harmonized training program for pharmacy residents participating in hospital on-call duties, in response to disparities and lack of structure in training observed nationwide. The program consists of theoretical, practical, and continuous training, with the introduction of tools such as in-house on-call duty notebook, simulation workshops, and interactive quizzes to enhance training quality and effectiveness. Collaboration with pharmacists from different sectors facilitated the gradual implementation of the training in our hospital pharmacy.
ANNALES PHARMACEUTIQUES FRANCAISES
(2021)