Article
Chemistry, Physical
Agnese D'Agostino, Michele Bertolini, Nina Bono, Matteo Pavarini, Paolo Tarsini, Gabriele Candiani, Luigi De Nardo, Roberto Chiesa
Summary: Despite advances in manufacturing materials, periprosthetic joint infections (PJIs) remain a serious complication after arthroplasty. The sol-gel technique offers potential for designing antibacterial coatings, and this study successfully obtained titanium dioxide coatings doped with silver and gallium ions to minimize bacterial adhesion on CoCrMo surfaces. The coatings showed satisfying antibacterial activity, no cytotoxicity, and potential for osteodifferentiation, highlighting their potential for surface modification of CoCrMo-based materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jing An, Fan Zou, Jing Zhang, Bin Tang, Jinfeng Wang
Summary: Enhanced functions of silk fabric were achieved by complex coating with both gold nanoparticles (AuNPs) and titanium dioxide nanoparticles (TiO2NPs). The combination of AuNPs and TiO2NPs provided better color fastness and antibacterial properties to silk fabric, and the assembly of functional nanoparticles on fibrous materials offers a potentially facile and effective strategy to achieve versatile fabrics in textile industry.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Construction & Building Technology
C. Dias, R. C. Veloso, J. Maia, N. M. M. Ramos, J. Ventura
Summary: Passive cooling of buildings can be achieved by enhancing the reflectance of coatings under sunlight. Embedding nanoparticles in coatings can significantly improve their reflectance, providing potential applications in temperature regulation.
ENERGY AND BUILDINGS
(2022)
Article
Materials Science, Multidisciplinary
Yuling Lai, Ying Guo, Liyun Xu, Xijiang Chang, Xingqun Zhang, Guangbiao Xu, Jianjun Shi
Summary: This study presents a simple method to prepare superhydrophobic antibacterial fabric by immersing pristine polyester fabric in a solution containing ZnO nanoparticle and polydimethylsiloxane (PDMS), followed by low pressure Ar plasma treatment. The fabric shows stable superhydrophobicity and antibacterial properties even after repeated washing cycles.
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Polymer Science
Jiacheng Tan, Hangjun Deng, Fangfang Lu, Wei Chen, Xiuping Su, Hairong Wang
Summary: An antibacterial, recyclable nanocellulose-titanium dioxide/polyester nonwoven fabric composite was developed for highly efficient photocatalytic degradation of dyes. The composite showed stable degradation rates for methylene blue and acid red, as well as strong antibacterial properties.
Article
Chemistry, Analytical
Antony Scimone, James Redfern, Panudda Patiphatpanya, Titipun Thongtem, Marina Ratova, Peter Kelly, Joanna Verran
Summary: This paper describes the development of a method for rapid screening of coatings with photocatalytic-antibacterial activity, using the color change of a dye to evaluate the number of viable microorganisms. Bismuth oxide showed excellent antibacterial activity against Escherichia coli, but was less effective against Klebsiella pneumoniae. The rapid method demonstrated excellent agreement with existing tests in terms of viable cell recovery.
Article
Materials Science, Multidisciplinary
Natalia P. Prorokova, Tatyana Yu Kumeeva, Igor Kholodkov
Summary: This paper presents a comparative analysis of the surface structure and morphology of hydrophobic coatings formed on a polyester fabric from various types of low molecular weight tetrafluoroethylenes. The study evaluates the contact angle, water absorption, and resistance to wear-washing, dry cleaning and abrasion of the coatings. The results show that the plasticity of the coating affects the hydrophobic properties of the fabric.
Article
Biochemistry & Molecular Biology
Anna Michalicha, Cristina Canal, Albert Espona-Noguera, Mateusz Piet, Barbara Budzynska, Stanislaw Przywara, Anna Belcarz
Summary: This study confirmed the modification effect of poly (L-DOPA) coating on PET vascular grafts, and demonstrated that coated grafts exhibited better antibacterial activity and safety compared to pristine grafts.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Agnieszka Wojciechowska, Agata Markowska-Szczupak, Zofia Lendzion-Bielun
Summary: This paper presents a method for synthesizing hybrid magnetic nanomaterials with antibacterial properties, and demonstrates their ability to exist stably under direct solar light based on characterization of their phase composition and crystallite size.
Article
Engineering, Chemical
Shyam Tonde, Shrikant More, Chinmay Hazra, Debasree Kundu, Shravanti Joshi, Ajinkya Satdive, Saurabh Tayde, Deepak Bornare, Bhagwan Toksha, Jitendra Naik, Aniruddha Chatterjee
Summary: In this study, 1D TiO2 sub 10 nm nanowires were successfully synthesized using a one pot hydrothermal method and decorated with silver for enhanced photocatalytic activity and antibacterial properties. The resulting super-hydrophobic coating on cotton fabric also exhibited enhanced UV-blocking performance. These sub 10 nm TiO2 nanowires hold great potential for industrial and domestic wastewater treatment.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Engineering, Environmental
L. Cano-Casanova, A. Amoros-Perez, M. Ouzzine, M. C. Roman-Martinez, M. A. Lillo-Rodenas
Summary: TiO2-C photocatalysts were prepared by hydrothermal synthesis using titanium tetraisopropoxide, saccharose and HCl of variable concentration. The TiO2-C photocatalysts have textural properties similar to those of analogous bare TiO2 samples, but different crystalline phase composition; they only contain anatase instead of an anatase-brookite-rutile mixture in bare TiO2. This reveals that carbon contributes to the stabilization of anatase. Also, the presence of carbon has shown to favor the spherical morphology. The TiO2-C photocatalysts are more active than analogous bare TiO2 ones and P-25. The most efficient TiO2-C photocatalysts are those prepared with lower HCl concentration solutions, 0.5 and 0.8 M, which present higher surface area and lower density of hydroxyl surface groups. Carbon, about 0.3-0.7 wt%, seems to be (partially) incorporated into the TiO2 lattice and it likely leads to low electron-hole recombination rate and to emission processes that could contribute to explain the good activity of the TiO2-C samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Pharmacology & Pharmacy
Soada Asadi, Bardia Mortezagholi, Alireza Hadizadeh, Vitaliy Borisov, Mohammad Javed Ansari, Hasan Shaker Majdi, Azizakhon Nishonova, Hossein Adelnia, Bahareh Farasati Far, Chaiyavat Chaiyasut
Summary: This study synthesized TiO2-NTs and evaluated the effects of different electrolyte conditions on their dimensions, finding that TiO2-NTs have high loading efficiency. The sustained release of drugs was achieved by coating TiO2-NTs with chitosan layers, and the impact of chitosan layer count on release was demonstrated. Antimicrobial activity evaluation showed good inhibitory effects against two endodontic species.
Article
Chemistry, Multidisciplinary
Najla Krifa, Wafa Miled, Nemeshwaree Behary, Christine Campagne, Morched Cheikhrouhou, Riadh Zouari
Summary: Hydrophobic polyester fabric was successfully dyed with natural Logwood dye after surface activation using dielectric barrier discharge treatment, resulting in enhanced color intensity and fastness properties without the use of mordants. Plasma treatment significantly improved color strength and wash fastness of the fabric, while the combination of plasma treatment and acrylate binder further enhanced the color fastness including rub fastness. This eco-friendly dyeing strategy shows promise in replacing hazardous dyes and intermediates in textile dyeing.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Metallurgy & Metallurgical Engineering
D. V. Mashtalyar, I. M. Imshinetskiy, K. V. Nadaraia, A. S. Gnedenkov, S. N. Suchkov, D. P. Opra, E. V. Pustovalov, A. Yu Ustinov, S. L. Sinebryukhov, S. V. Gnedenkov
Summary: A comprehensive study was conducted on the properties of coatings formed on a magnesium alloy by plasma electrolytic oxidation (PEO) using electrolytes with nanosized particles of anatase (titanium dioxide). The formed coatings exhibit a 2.5-fold reduction in corrosion current density and a 25% increase in hardness compared to coatings without particles. Confocal micro-Raman spectroscopy revealed the presence of anatase and rutile phases in the PEO coating composition due to the incorporation of TiO2 nanoparticles during plasma electrolytic treatment. The presence of titanium dioxide has a positive effect on the photocatalytic properties of the coatings, with a 1.6-fold and 1.8-fold increase in the constant rate of methyl orange and methyl blue decomposition, respectively, compared to coatings formed without TiO2 particles.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)