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Relevant bibliographies by topics / Biocompatible $$x chemistry

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Academic literature on the topic 'Biocompatible $$x chemistry'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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Journal articles on the topic "Biocompatible $$x chemistry"

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Šugár, Peter, Barbora Ludrovcová, Jaroslav Kováčik, Martin Sahul, and Jana Šugárová. "Laser-Based Ablation of Titanium–Graphite Composite for Dental Application." Materials 13, no. 10 (May 18, 2020): 2312. http://dx.doi.org/10.3390/ma13102312.

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Biocompatible materials with excellent mechanical properties as well as sophisticated surface morphology and chemistry are required to satisfy the requirements of modern dental implantology. In the study described in this article, an industrial-grade fibre nanosecond laser working at 1064 nm wavelength was used to micromachine a new type of a biocompatible material, Ti-graphite composite prepared by vacuum low-temperature extrusion of hydrogenated-dehydrogenated (HDH) titanium powder mixed with graphite flakes. The effect of the total laser energy delivered to the material per area on the machined surface morphology, roughness, surface element composition and phases transformations was investigated and evaluated by means of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), confocal laser-scanning microscopy (CLSM) and X-ray diffraction analysis (XRD). The findings illustrate that the amount of thermal energy put to the working material has a remarkable effect on the machined surface properties, which is discussed from the aspect of the contact properties of dental implants.

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Wang, Chang-Hai, Chi-Jen Liu, Cheng-Liang Wang, Chia-Chi Chien, Y. Hwu, Ru-Shi Liu, Chung-Shi Yang, Jung-Ho Je, Hong-Ming Lin, and G. Margaritondo. "Intense X-ray induced formation of silver nanoparticles stabilized by biocompatible polymers." Applied Physics A 97, no. 2 (August 20, 2009): 295–300. http://dx.doi.org/10.1007/s00339-009-5377-x.

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3

Baron, Raluca Ioana, Gabriela Biliuta, Vlad Socoliuc, and Sergiu Coseri. "Affordable Magnetic Hydrogels Prepared from Biocompatible and Biodegradable Sources." Polymers 13, no. 11 (May 22, 2021): 1693. http://dx.doi.org/10.3390/polym13111693.

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Magnetic hydrogels composed of poly(vinyl alcohol) (PVA)/water-soluble tricarboxy cellulose (CO)/magnetic fluids (MFs) have been prepared by a freeze–thaw cycle technique. The system designed here combines the renewability and biocompatibility aspects of PVA and CO, as well as the magnetic properties of MFs, thereby offering special properties to the final product with potential applications in medicine. In the first step, the water-soluble CO is synthesized using a one-shot oxidation procedure and then the aqueous solutions of CO are mixed with PVA solutions and magnetic fluids in the absence of any additional cross-linking agent. The magnetic hydrogels were thoroughly investigated by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), magnetometry (VSM), and thermogravimetric analysis. The morphological results show an excellent distribution of magnetic particles and CO inside the PVA matrix. The VSM results show that the magnetic hydrogels possess superparamagnetic properties.

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Morais, P. C., V. K. Garg, A. C. Oliveira, L. B. Silveira, J. G. Santos, M. M. A. Rodrigues, and A. C. Tedesco. "Nanoscaled biocompatible magnetic drug-delivery system: preparation and characterization." Hyperfine Interactions 190, no. 1-3 (April 2009): 87–93. http://dx.doi.org/10.1007/s10751-009-9968-x.

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5

Baruah, Jejiron Maheswari, Sanjeeb Kalita, and Jyoti Narayan. "Green chemistry synthesis of biocompatible ZnS quantum dots (QDs): their application as potential thin films and antibacterial agent." International Nano Letters 9, no. 2 (March 27, 2019): 149–59. http://dx.doi.org/10.1007/s40089-019-0270-x.

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6

Gadzhimagomedova, Zaira, Peter Zolotukhin, Oleg Kit, Daria Kirsanova, and Alexander Soldatov. "Nanocomposites for X-Ray Photodynamic Therapy." International Journal of Molecular Sciences 21, no. 11 (June 3, 2020): 4004. http://dx.doi.org/10.3390/ijms21114004.

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Photodynamic therapy (PDT) has long been known as an effective method for treating surface cancer tissues. Although this technique is widely used in modern medicine, some novel approaches for deep lying tumors have to be developed. Recently, deeper penetration of X-rays into tissues has been implemented, which is now known as X-ray photodynamic therapy (XPDT). The two methods differ in the photon energy used, thus requiring the use of different types of scintillating nanoparticles. These nanoparticles are known to convert the incident energy into the activation energy of a photosensitizer, which leads to the generation of reactive oxygen species. Since not all photosensitizers are found to be suitable for the currently used scintillating nanoparticles, it is necessary to find the most effective biocompatible combination of these two agents. The most successful combinations of nanoparticles for XPDT are presented. Nanomaterials such as metal–organic frameworks having properties of photosensitizers and scintillation nanoparticles are reported to have been used as XPDT agents. The role of metal–organic frameworks for applying XPDT as well as the mechanism underlying the generation of reactive oxygen species are discussed.

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Ghazanfari, Adibehalsadat, Shanti Marasini, Huan Yue, Son Long Ho, Xu Miao, Mohammad Yaseen Ahmad, Ji Ae Park, et al. "D-Glucuronic Acid-Coated Ultrasmall Bi2O3 Nanoparticles for CT Imaging." Journal of Nanoscience and Nanotechnology 20, no. 8 (August 1, 2020): 4638–42. http://dx.doi.org/10.1166/jnn.2020.17817.

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Ultrasmall Bi2O3 nanoparticles (davg = 1.5 nm) coated with biocompatible and hydrophilic D-glucuronic acid were prepared for the first time through a simple one-step polyol process and their potential as CT contrast agents were investigated by measuring their X-ray attenuation properties. Their observed X-ray attenuation power was stronger than that of a commercial iodine CT contrast agent at the same atomic concentration, as consistent with the magnitudes of atomic X-ray attenuation coefficients (i.e., Bi > I), and much stronger at the same number density. The results indicate that the nanoparticle sample is a potential CT contrast agent.

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8

Faisal, Shah, Abdullah, Hasnain Jan, Sajjad Ali Shah, Sumaira Shah, Muhammad ad Rizwan, Nasib Zaman, et al. "Bio-Catalytic Activity of Novel Mentha arvensis Intervened Biocompatible Magnesium Oxide Nanomaterials." Catalysts 11, no. 7 (June 27, 2021): 780. http://dx.doi.org/10.3390/catal11070780.

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In the present study Mentha arvensis medaited Magnesium oxide nanoparticles were synthesized by novel green route followed by advanced characterization via XRD, FTIR, UV, SEM, TEM, DLS and TGA. The mean grain size of 32.4 nm and crystallite fcc morphology were confirmed by X-ray diffractive analysis. Scanning and Transmission electron microscopy analysis revealed the spherical and elliptical morphologies of the biosynthesized nanoparticles. Particle surface charge of −16.1 mV were determined by zeta potential and zeta size of 30–120 nm via dynamic light scattering method. Fourier transform spectroscopic analysis revealed the possible involvement of functional groups in the plant extract in reduction of Mg2+ ions to Mg0. Furthermore, the antioxidant, anti-Alzheimer, anti-cancer, and anti-H. pylori activities were performed. The results revealed that MgO-NPs has significant anti-H. pyloric potential by giving ZOI of 17.19 ± 0.83 mm against Helicobacter felis followed by Helicobacter suis. MgO-NPs inhibited protein kinase enzyme up to 12.44 ± 0.72% at 5 mg/mL and thus showed eminent anticancer activity. Significant free radicals scavenging and hemocompatability was also shown by MgO-NPs. MgO-NPs also displayed good inhibition potential against Hela cell lines with maximum inhibition of 49.49 ± 1.18 at 400 µg/mL. Owing to ecofriendly synthesis, non-toxic and biocompatible nature, Mentha arvensis synthesized MgO-NPs can be used as potent antimicrobial agent in therapeutic applications.

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Grande Tovar, Carlos David, Jorge Iván Castro, Carlos Humberto Valencia, Paula A. Zapata, Moisés A. Solano, Edwin Florez López, Manuel N. Chaur, Mayra Eliana Valencia Zapata, and José Herminsul Mina Hernandez. "Synthesis of Chitosan Beads Incorporating Graphene Oxide/Titanium Dioxide Nanoparticles for In Vivo Studies." Molecules 25, no. 10 (May 14, 2020): 2308. http://dx.doi.org/10.3390/molecules25102308.

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Scaffold development for cell regeneration has increased in recent years due to the high demand for more efficient and biocompatible materials. Nanomaterials have become a critical alternative for mechanical, thermal, and antimicrobial property reinforcement in several biopolymers. In this work, four different chitosan (CS) bead formulations crosslinked with glutaraldehyde (GLA), including titanium dioxide nanoparticles (TiO2), and graphene oxide (GO) nanosheets, were prepared with potential biomedical applications in mind. The characterization of by FTIR spectroscopy, X-ray photoelectron spectroscopy (XRD), thermogravimetric analysis (TGA), energy-dispersive spectroscopy (EDS) and scanning electron microscopy (SEM), demonstrated an efficient preparation of nanocomposites, with nanoparticles well-dispersed in the polymer matrix. In vivo, subdermal implantation of the beads in Wistar rat′s tissue for 90 days showed a proper and complete healing process without any allergenic response to any of the formulations. Masson′s trichrome staining of the histological implanted tissues demonstrated the presence of a group of macrophage/histiocyte compatible cells, which indicates a high degree of biocompatibility of the beads. The materials were very stable under body conditions as the morphometry studies showed, but with low resorption percentages. These high stability beads could be used as biocompatible, resistant materials for long-term applications. The results presented in this study show the enormous potential of these chitosan nanocomposites in cell regeneration and biomedical applications.

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10

Xiang, Li, Wonyeong Ryu, Jehan Kim, and Moonhor Ree. "Cyclic topology effects on the morphology of biocompatible and environment-friendly poly(ε-caprolactone) under nanoscale film confinement." Polymer Chemistry 11, no. 28 (2020): 4630–38. http://dx.doi.org/10.1039/d0py00665c.

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Quantitative grazing incidence X-ray scattering analysis combined with X-ray reflectivity using synchrotron radiation sources was explored for the first time cyclic topology effects on the nanoscale film morphology of poly(ε-caprolactone).

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Dissertations / Theses on the topic "Biocompatible $$x chemistry"

1

Ju, Young Min. "A novel bio-stable 3D porous collagen scaffold for implantable biosensor." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002354.

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2

Nelson, Kjell Erik. "Investigating cell adhesion to controlled surface chemistry via self-assembly of binary composition alkylthiol monolayers, streptavidin immobilization, and cell receptor ligand attachment /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8051.

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