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Synergistic enhancement of angiogenesis and osseointegration in 3D-printed porous polyetheretherketone scaffolds using biomimetic coatings of bone morphogenetic protein-2/fibronectin.
Int J Biol Macromol
January 2025
Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun 130033, China. Electronic address:
This study explored a novel modification method for porous polyetheretherketone (PEEK) implants using a biomimetic coating to achieve synergistic enhancement of vascularization and bone regeneration. Inspired by the natural extracellular matrix (ECM) structure (consists of growth factors and matrix proteins), a biomimetic dual-factor coating capable of releasing bone morphogenetic protein-2 (BMP-2) and fibronectin (FN) was coated on the surface of 3D-printed porous PEEK scaffolds using polydopamine (PDA) as a binder. Experiments conducted with MC3T3-E1 cells or HUVECs in co-culture with scaffolds revealed that the biomimetic coating not only synergically promoted cell migration, adhesion and proliferation, but also enhanced angiogenesis and osteogenic differentiation simultaneously in vivo.
View Article and Find Full Text PDFAdvances of Hydroxyapatite Nanoparticles in Dental Implant Applications.
Int Dent J
January 2025
Department of Microbiology, University of Dhaka, Dhaka, Dhaka, Bangladesh.
Hydroxyapatite nanoparticles (HANPs) are becoming increasingly crucial in dental implant applications as they are highly compatible with biological systems, actively support biological processes, and closely resemble bone minerals. This review covers the latest progress in how HANPs are made, studied, and used in dentistry. It looks at critical methods for creating HANPs, such as sol-gel, microwave hydrothermal synthesis, and biomimetic approaches, and how they affect the particles' size, structure, and activity.
View Article and Find Full Text PDFComparative Evaluation of Microleakage in Class V Cavities Restored with Newer Bioactive Restorative Materials: Activa Bioactive Restorative and Activa Pronto.
Int J Clin Pediatr Dent
November 2024
Private Practitioner, Bengaluru, Karnataka, India.
Aim: To compare the microleakage in class V cavities restored with Activa Bioactive Restorative, Activa Pronto, and nanohybrid composite.
Materials And Methods: Standardized class V cavity preparations (mesiodistal: 3 mm; occlusocervical: 2 mm; axial depth: 1 mm) were made on the buccal surface of 60 extracted intact maxillary premolar teeth. The preparations were divided into three experimental groups ( = 20) depending on the restorative material used.
Biomimetic and protective effects of bioactive toothpastes on eroded enamel surfaces.
Braz Oral Res
January 2025
Universidade Federal da Paraíba - UFPB, Health Science Center Department of Clinical and Community Dentistry, João Pessoa, PB, Brazil.
This study aimed to evaluate the effectiveness of bioactive toothpastes in remineralizing eroded enamel surfaces in vitro. Bovine enamel blocks (n = 48) were obtained and classified into untreated, demineralized, and treated areas. Specimens were randomly classified into six groups (n = 8 each): fluoride-free toothpaste (NCT), Colgate Total 12 (PCT), Sensodyne Repair and Protect (SRP), Sensodyne Pronamel (SPE), Regenerador + Sensitive (RGS), and RGS/calcium booster (RCB).
View Article and Find Full Text PDFNon-Invasive Nanometer Resolution Assessment of Cell-Soft Hydrogel System Mechanical Properties by Scanning Ion Conductance Microscopy.
Int J Mol Sci
December 2024
Department of Physics, M.V. Lomonosov Moscow State University, 1/2 Leninskie Gory, 119991 Moscow, Russia.
Biomimetic hydrogels have garnered increased interest due to their considerable potential for use in various fields, such as tissue engineering, 3D cell cultivation, and drug delivery. The primary challenge for applying hydrogels in tissue engineering is accurately evaluating their mechanical characteristics. In this context, we propose a method using scanning ion conductance microscopy (SICM) to determine the rigidity of living human breast cancer cells MCF-7 cells grown on a soft, self-assembled Fmoc-FF peptide hydrogel.
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