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Synthesis of photo-responsive κ-carrageenan-based hydrogels for drug delivery application.
Int J Biol Macromol
December 2024
Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
Natural polymer-based hydrogels may act as versatile platforms in controlled drug delivery. In this regard, photoactive κ-carrageenan (κ-Crg) hydrogels modified with cinnamate (CN) groups are developed for pH-sensitive release of drugs. κ-Crg-CN derivatives containing 17 %, 33 %, and 49 % cinnamate contents, named κ-Crg-CN1, κ-Crg-CN2, and κ-Crg-CN3, respectively, are prepared and cross-linked by UV-induced [2π + 2π] cycloaddition.
View Article and Find Full Text PDFNeedleless graft preparation for anterior cruciate ligament reconstruction with 4-strand semitendinosus autograft: a biomechanical in vitro study using a porcine model.
BMC Musculoskelet Disord
December 2024
Department of Orthopedics, Trauma and Plastic Surgery, University of Leipzig, Leipzig, Germany.
Background: Ruptures of the anterior cruciate ligament (ACL) are common injuries. Reconstruction using autologous grafts is recommended to prevent further damage and functional impairment. Grafts are usually prepared with stabilizing sutures.
View Article and Find Full Text PDFFunctional outcomes of three-corner fusion without triquetrum excision versus conventional four-corner fusion in scaphoid non-union advanced collapse G II and III in active patients: a prospective randomized control trial.
SICOT J
December 2024
Orthopedic Department, Faculty of Medicine Ain Shams University, 38 Abbassia Square, Cairo 1181, Egypt.
Introduction: Four-corner fusion has long been the preferred treatment for stages II and III of scaphoid nonunion advanced collapse with intact radiolunate articulation. Three corner fusions were then proposed as a more limited procedure with improved ulnar deviation through triquetrum excision. However, we believe triquetrum preservation would decrease the radiolunate contact pressure without affecting the ulnar deviation range.
View Article and Find Full Text PDFIn Regard to Youssef et al.
Int J Radiat Oncol Biol Phys
December 2024
Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Outcomes of Xenograft with Platelet-rich Fibrin versus Autogenous Bone in Alveolar Cleft Grafting.
Plast Reconstr Surg Glob Open
September 2024
From the Plastic and Reconstructive Surgery Department, Assiut University Hospital, Assiut, Egypt.
Background: The use of a suitable graft material helps with sufficient osseointegration. The aim of this study was to compare the clinical and radiographic outcomes of two types of alveolar bone graft materials, xenografts with platelet-rich fibrin (PRF) and autogenous grafts, in patients with alveolar clefts.
Methods: Thirty-six patients with alveolar clefts were enrolled in this study.
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