To evaluate the mechanical properties (MP) and antimicrobial activity of a glass ionomer cement (GIC) incorporated with an antimicrobial agent from the aerial parts of Dioscorea altissima. MP were: syneresis & imbibition; solubility; elasticity module; surface microhardness and fluoride release, and the anti-Streptococcus mutans (Smut) activity was accessed by microdilution broth assay and 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) analysis. Syneresis & imbibition did not change over time for both groups, but EG showed lower values at days 7th and 30th. The control group (CG)'s and the experimental group (EG)'s weights were similar before the solubility assay, but after seven days, CG exhibited weight gain in comparison to EG. The elasticity module had no significant differences between groups. The CG showed lower surface microhardness compared to the EG. CG and EG had similar behaviors regarding fluoride release. EG showed diminished Streptococcus mutans count in comparison to CG. EG showed similar or better mechanical properties and an improvement in the antibacterial activity than the original cement.
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http://dx.doi.org/10.4012/dmj.2018-064 | DOI Listing |
J Cell Sci
January 2025
School of Biological Sciences, Indian Association for the Cultivation of Science, Kolkata-700032, India.
The cytoplasm exhibits viscoelastic properties, displaying both solid and liquid-like behavior, and can actively regulate its mechanical attributes. The cytoskeleton is a major regulator among the numerous factors influencing cytoplasmic mechanics. We explore the interdependence of various cytoskeletal filaments and the impact of their density on cytoplasmic viscoelasticity.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
Department of Advanced Materials Science & Engineering, Hanseo University, Seosan, Chungnam 31962, Republic of Korea.
MXenes are a class of 2D transition metal carbides and nitrides (MXT) that have attracted significant interest owing to their remarkable potential in various fields. The unique combination of their excellent electromagnetic, optical, mechanical, and physical properties have extended their applications to the biological realm as well. In particular, their ultra-thin layered structure holds specific promise for diverse biomedical applications.
View Article and Find Full Text PDFACS Appl Bio Mater
January 2025
Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, Yale University, 310 Cedar Street, New Haven, Connecticut 06510, United States.
Encapsulating fibroblasts in alginate hydrogels is a promising strategy to promote wound healing. However, improving the cell function within the alginate matrix remains a challenge. In this study, we engineer an injectable hydrogel through mixing alginate function with collagen and fibronectin, creating a better microenvironment for enhancing fibroblast function and cytokine secretion.
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View Article and Find Full Text PDFNanoscale Adv
January 2025
Energy Masteries Laboratory, Physics Department, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
Laser surface alloying of Fe, Si, and C on aluminium is demonstrated using a Q-switched Nd:YAG laser as the source of energy. The fundamental wavelength of the laser beam was 1064 nm with an output energy of 100 mJ and a pulse duration of 10 ns. The exposure was conducted in repetitive mode with a frequency rate of 1 Hz.
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