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Improved primary stability and load transfer of a customized osseointegrated transfemoral prosthesis compared to a commercial one.
J Orthop Surg Res
January 2025
Department of Industrial Engineering, Alma Mater Studiorum-University of Bologna, Bologna, Italy.
Background: Transfemoral osseointegrated prostheses, like other uncemented prostheses experience the risk of aseptic loosening and post-operative periprosthetic fractures, with an incidence between 3% and 30%. To date, however, osseointegrated off-the-shelf prostheses are manufactured in a limited number of sizes, and some patients do not meet the strict eligibility criteria of commercial devices. A customized osseointegrated stem was developed and a pre-clinical in vitro investigation of the stem was performed, to evaluate its biomechanical performance.
View Article and Find Full Text PDFShort-term outcomes of mesh-suture repair in the treatment of ventral hernias: a single-center study.
Surg Endosc
January 2025
Division of Minimally Invasive and Bariatric Surgery, Penn State Health Milton S. Hershey Medical Center, 500 University Drive, Hershey, PA, 17033, USA.
Background: Defect closure with mesh suture is a novel technique for hernia repair. Originally described as the construction of lightweight macroporous polypropylene mesh strips as a suture material, it is now available as an FDA-approved product. Mesh suture better distributes tensile forces and reduces fascial tearing compared to traditional suture but requires less implanted material and tissue dissection compared to planar mesh.
View Article and Find Full Text PDFPreparation and characterization of polyvinyl alcohol and chitosan composite film with cassia oil encapsulated in β-cyclodextrin and its application in fresh banana.
Int J Biol Macromol
January 2025
Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou 225001, PR China; The Key Laboratory of the Jiangsu Higher Education Institutions for Integrated Traditional Chinese and Western Medicine in Senile Diseases Control (Yangzhou University), Yangzhou 225001, PR China. Electronic address:
In this study, composite films were developed by encapsulating cassia oil (CO) with β-cyclodextrin through a microencapsulation technique and incorporating it into a chitosan (CS), polyvinyl alcohol (PVA) and glycerol matrix. The primary objective of the film was to inhibit bacterial growth on the surface of fresh bananas and extend their shelf life. Characterization methods were employed to evaluate the physical properties and functionality of the composite films.
View Article and Find Full Text PDFDevelopment of Thermoplastic Bi-Component Electrodes for Triboelectric Impact Detection in Smart Textile Applications.
Polymers (Basel)
January 2025
Department of Mechanical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal.
Smart textiles provide a significant technological advancement, but their development must balance traditional textile properties with electronic features. To address this challenge, this study introduces a flexible, electrically conductive composite material that can be fabricated using a continuous bi-component extrusion process, making it ideal for sensor electrodes. The primary aim was to create a composite for the filament's core, combining multi-walled carbon nanotubes (MWCNTs), polypropylene (PP), and thermoplastic elastomer (TPE), optimised for conductivity and flexibility.
View Article and Find Full Text PDFDevelopment of a Sustainable Flexible Humidity Sensor Based on Larvae Biomass-Derived Chitosan.
Sensors (Basel)
January 2025
Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea.
This study presents the fabrication of a sustainable flexible humidity sensor utilizing chitosan derived from mealworm biomass as the primary sensing material. The chitosan-based humidity sensor was fabricated by casting chitosan and polyvinyl alcohol (PVA) films with interdigitated copper electrodes, forming a laminate composite suitable for real-time, resistive-type humidity detection. Comprehensive characterization of the chitosan film was performed using Fourier-transform infrared (FTIR) spectroscopy, contact angle measurements, and tensile testing, which confirmed its chemical structure, wettability, and mechanical stability.
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