Article
Materials Science, Multidisciplinary
Simona Liliana Iconaru, Carmen Steluta Ciobanu, Daniela Predoi, Mikael Motelica-Heino, Constantin Catalin Negrila, Monica Luminita Badea, Mihai Valentin Predoi, Carmen Mariana Chifiriuc, Marcela Popa
Summary: This research presents the results of a study on hydroxyapatite thin films co-doped with nitrogen and bromine for the first time, obtained through an adapted co-precipitation method. The thin layers showed superior morphological properties and exhibited good antimicrobial activity against bacterial and fungal strains in vitro. The successful obtainment of N and Br co-doped hydroxyapatite suspension was highlighted, showing potential for applications in biomaterials.
Article
Materials Science, Multidisciplinary
Simona Liliana Iconaru, Daniela Predoi, Carmen Steluta Ciobanu, Mikael Motelica-Heino, Regis Guegan, Coralia Bleotu
Summary: This study investigates the properties of silver doped hydroxyapatite thin films and reveals their excellent antimicrobial properties and biocompatibility, making them highly promising for biomedical applications.
Article
Materials Science, Multidisciplinary
Carmen Steluta Ciobanu, Daniela Predoi, Patrick Chapon, Mihai Valentin Predoi, Simona Liliana Iconaru
Summary: Samarium doped hydroxyapatite thin films with antifungal properties were successfully prepared using spin coating method, showing promising potential for medical applications.
Article
Materials Science, Multidisciplinary
Simona Liliana Iconaru, Mihai Valentin Predoi, Patrick Chapon, Sofia Gaiaschi, Krzysztof Rokosz, Steinar Raaen, Mikael Motelica-Heino, Daniela Predoi
Summary: In this study, cerium-doped hydroxyapatite (10Ce-HAp) coatings were successfully obtained using the spin coating method for the first time. The coatings showed uniformity, high strength, and strong antifungal properties, effectively inhibiting the adherence and growth of fungal cells.
Article
Materials Science, Ceramics
Azzedine Bensalem, Oguz Kaan Kucukosman, James Raszkiewicz, Ferhat Topkaya
Summary: Doping or embedding silver and zinc oxide into hydroxyapatite (Hap) can enhance its bactericidal and mechanical properties, as demonstrated by XRD, FTIR, SEM, and TEM analysis. The presence of zinc and silver in all embedded Hap samples was confirmed by Microwave Plasma-Atomic Emission Spectroscopy. The study showed that reinforcing Hap with silver and zinc oxide results in superior antibacterial and mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Infectious Diseases
Daniela Predoi, Simona-Liliana Iconaru, Mihai-Valentin Predoi, Nicolas Buton
Summary: The objective of this study was to develop new materials with antimicrobial properties at the nanometric scale. Stable suspensions with narrow size distribution and antimicrobial properties were obtained and characterized. The suspensions exhibited exceptional antimicrobial activity against Staphylococcus aureus, Escherichia coli, and Candida albicans, and the antimicrobial effect increased with incubation time.
Article
Polymer Science
Doaa A. Nasrallah, Manar A. Ibrahim
Summary: Silver doped hydroxyapatite nanoparticles were successfully synthesized and incorporated into a mixed solution of polyvinyl alcohol and carboxymethyl cellulose. The experimental results showed that the doping of silver nanoparticles significantly influenced the structural, optical, dielectric, and antimicrobial properties of the nanocomposite films. These nanocomposites may have potential applications in biomedical fields.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Catalin Constantin Negrila, Daniela Predoi, Rodica V. Ghita, Simona Liliana Iconaru, Steluta Carmen Ciobanu, Mirela Manea, Monica Luminita Badea, Adrian Costescu, Roxana Trusca, Gabriel Predoi, George A. Stanciu, Radu Hristu, Laura Denisa Dragu, Coralia Bleotu, Andreea Groza, Ioana Cristina Marinas, Mariana Carmen Chifiriuc
Summary: In this study, Ag:HAp and Ag:HAp + D-3 thin films were prepared on Ti substrate using vacuum deposition method, and the effects of UV irradiation on the thin films were investigated for the first time. The results indicated a process of recovery of the thin film's properties under UV irradiation, leading to a more complex UVA rapid degradation process. Furthermore, antifungal assays showed that all samples exhibited antifungal properties, while cytotoxicity assays revealed no alterations in HeLa cell morphology after incubation with the thin films.
Article
Environmental Sciences
A. Mariappan, P. Pandi, R. Rajeswarapalanichamy, K. Neyvasagam, Shanmugam Sureshkumar, Mansour K. Gatasheh, Ashraf Atef Hatamleh
Summary: Silver doped hydroxyapatite and titanium oxide nanocomposites with novel antimicrobial and photocatalytic activities have been successfully obtained using sol-gel techniques.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Ceramics
Ariel Nenen, Miguel Maureira, Miguel Neira, Sandra L. Orellana, Cristian Covarrubias, Ignacio Moreno-Villoslada
Summary: Nano-hydroxyapatite doped with Ag+ or Zn2+ was synthesized using the sol-gel precipitation method. The materials showed biocompatibility, osteoinductive potential, and antibacterial activity, with the Zn2+ doped samples being particularly effective.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Multidisciplinary
Ugur Caligulu, Nida Darcan, Haluk Kejanli
Summary: This study investigated the impact of Calcium (Ca) and Manganese (Mn) dopants on the optical and surface properties of Titanium dioxide (TiO2) nanomaterial. The results showed that the doping ratio of Mn affected the morphological properties of TiO2 and increased the optical band gap of the samples. The produced samples have potential applications in transparent conductive electrode applications, optoelectronic devices, and sensor production.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Polymer Science
Carmen Steluta Ciobanu, Ionela Cristina Nica, Anca Dinischiotu, Simona Liliana Iconaru, Patrick Chapon, Bogdan Bita, Roxana Trusca, Andreea Groza, Daniela Predoi
Summary: In this study, dextran coated cerium doped hydroxyapatite (Ca(10-x)Cex(PO4)(6)(OH)(2)) thin films were successfully deposited on Si substrates by radio frequency magnetron sputtering technique. The morphology, composition, structure, and biocompatibility of the coatings were investigated using various characterization techniques. The results showed that the coatings had smooth surfaces, identified composition elements, and exhibited good biocompatibility.
Article
Chemistry, Physical
J. G. Cuadra, S. Molina-Prados, Gladys Minguez-Vega, Ana. C. Estrada, T. Trindade, C. Oliveira, M. P. Seabra, J. Labrincha, S. Porcar, R. Cadena, D. Fraga, J. B. Carda
Summary: Transparent TiO2 thin films coated with Ag NPs were synthesized using industrially applicable techniques, without high vacuum. These films showed high transmittance (>80%) and exhibited photocatalytic and antimicrobial properties. The presence of Ag NPs on the TiO2 surface improved the photocatalytic efficiency, resulting in a 99% degradation of Rhodamine B under UV light. The films also showed significant antimicrobial activity, killing 93% of Gram-negative bacteria when irradiated by UV light for 4 hours.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Andong Wang, Mingwei Shao, Fan Yang, Chenkang Shao, Caifeng Chen
Summary: In this study, PVDF/TPs and PVDF/TPs/Ag composite thin films were prepared using electrically assisted 3D printing method, and their surface morphology, hydrophilicity, and antibacterial properties were studied. Results showed that TPs promoted crystallinity and hole formation on PVDF surface, while the deposition of silver nanoparticles improved antibacterial activity significantly.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Carmen Steluta Ciobanu, Mihai Valentin Predoi, Nicolas Buton, Christelle Megier, Simona Liliana Iconaru, Daniela Predoi
Summary: Hydroxyapatite (HAp) and europium-doped thin films (5EuHAp) exhibited noticeable antifungal activity against Candida albicans cells, showing potential as a therapeutic option for implant infection treatment.
