Biophysical Properties of Foamed and Solid Polymers Used in Orthotics and Prosthetics

Bohinc, Klemen; Abram, Anže; Zore, Anamarija; Štukelj, Roman; Lenarčič, Ana; Vidrih, Rajko; Škapin, Andrijana Sever

doi:10.3390/ma14226877

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…These are recognized as polymers with desirable properties such as low density, recyclability, a significant degree of thermal stability, and strong chemical resistance. [ 139 ] PP is more rigid and durable than PE and is more commonly used for corrective AFOs. [ 140 ] Today, the majority of custom‐made AFOs are still made of PP.…”

Section: Materials Used In Afo Fabricationmentioning

confidence: 99%

Materials and Manufacturing for Ankle–Foot Orthoses: A Review

Nouri

Wang

et al. 2023

Adv Eng Mater

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Ankle‐foot orthoses (AFOs) assist patients with gait impairment by correcting ankle and foot deformities, restoring mobility, reducing pain, and providing protection and immobilization. AFOs can beneficially manage various types of gait pathologies, including foot drop, crouch gait, equinus gait, and stiff knee gait. AFOs are produced in prefabricated or custom‐made forms in various designs. The selection criteria for the fabrication of an AFO are the duration of usage, the amount of applied force, the degree of axial loading, the patient’s skin condition, and the cost. The accessibility of diverse materials in the past century has greatly advanced orthoses. The ideal orthotic materials must be light, stiff, and strong, and are made of plastics, metals, polymer‐based composites, leather, or a hybrid of different materials. Deeper understanding of the materials employed in the fabrication of AFOs will lead to more advanced and efficient orthoses, which can improve patients’ ability to ambulate in the real world. The present review provides insight into the various materials utilized for the fabrication of AFOs and describes the benefits and challenges associated with these materials. An attempt has also been made to highlight typical gait pathologies and design concepts in response to these.This article is protected by copyright. All rights reserved.

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Section: Materials Used In Afo Fabricationmentioning

confidence: 99%

Materials and Manufacturing for Ankle–Foot Orthoses: A Review

Nouri

Wang

et al. 2023

Adv Eng Mater

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Influence of RF Power on Wettability, Morphology and Bacterial Adhesion Properties of Oxygen Plasma Treated Silicone Catheter Surfaces

Dave,

Balasubramanian,

Hans

et al. 2023

Plasma Chem Plasma Process

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Catheterized patients often develop a secondary infection in their body due to bacterial adhesion and growth taking place on catheter surfaces. Nanoscale surface modi cation can alter the bacterial adhesion pattern on the catheter surface. In the present work, we have studied the interaction of oxygen plasma with silicone catheter surfaces from the perspective of variance in RF Power to induce physicochemical surface modi cation to reduce bacterial adhesion. Silicone catheter surfaces have been treated in low-pressure CCP-RF (Capacitively Coupled Radio Frequency) oxygen plasma at different RF powers in the range of 25 -150 W. Obtained results convey that with an increase in RF power, the population of atomic oxygen species becomes dominant among other species. Morphological features are found to grow more signi cantly in amplitude as a function of RF power. Substantial oxidation of the silicone surface is observed in the form of a polar component of surface energy. Oxygen plasma-treated catheter surfaces have exhibited a gradual reduction in E-coli bacterial cell adhesion as a function of RF power with a minimum adhesion of £1%. The shelf life of plasma-induced hydrophilicity on the catheter surface has been evaluated under different storage environments like ambient air, water, arti cial urine solution, and modi ed atmosphere packaging. This study concludes that variance in RF power is a major controlling factor for bacterial adhesion on silicone catheter surface due to the evolution of amplitude morphological parameters keeping space morphological parameters nearly unaffected in contrast to earlier reported studies of variance in plasma exposure time [1].

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Biophysical Properties of Foamed and Solid Polymers Used in Orthotics and Prosthetics

Cited by 2 publications

References 32 publications

Materials and Manufacturing for Ankle–Foot Orthoses: A Review

Materials and Manufacturing for Ankle–Foot Orthoses: A Review

Influence of RF Power on Wettability, Morphology and Bacterial Adhesion Properties of Oxygen Plasma Treated Silicone Catheter Surfaces

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