Results 41 to 50 of about 21,705 (266)

Histological evaluation of a cochlear implant electrode array with electrically activated shape change for perimodiolar positioning

open access: yesCurrent Directions in Biomedical Engineering, 2018
For the treatment of deafness or severe hearing loss cochlear implants (CI) are used to stimulate the auditory nerve of the inner ear. In order to produce an electrode array which is both atraumatic and reaches a perimodiolar final position a design ...
Rau Thomas S.   +5 more
doaj   +1 more source

An Examination of Bacterial Colonisation on Nickel-Titanium Arch-wires with Different Surface Properties [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2019
Introduction: Microbial dental plaque accumulation during fixed orthodontic treatment, leads to iatrogenic decalcification of the enamel and to development of the white spot lesions.
Selcan Hasipek   +2 more
doaj   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

open access: yesAdvanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du   +5 more
wiley   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu   +5 more
wiley   +1 more source

Smart 4D-printed implants and instruments

open access: yesCurrent Directions in Biomedical Engineering, 2020
Selective laser melting (SLM) was used to manufacture smart programmed structures with customized properties made of biocompatible NiTi shape-memory alloy.
Wild Michael de   +3 more
doaj   +1 more source

Study on interfacial characteristics and properties of NiTi/Al–Mg joint by vaporizing foil actuator welding

open access: yesJournal of Materials Research and Technology, 2022
As a new type of impact welding technology, Vaporizing Foil Actuator Welding (VFAW) has the advantages of high welding efficiency and small heat affected zone, which could avoid the decline of shape memory properties of the NiTi alloy in the NiTi/metals ...
Fei Du   +5 more
doaj   +1 more source

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

open access: yesAdvanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir   +4 more
wiley   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo   +4 more
wiley   +1 more source

Interpretable Machine Learning Framework for Nb─Si Based Alloy Design with Enhanced Fracture Toughness

open access: yesAdvanced Science, EarlyView.
An interpretable machine learning framework integrating SHAP and PDP analysis identifies critical design descriptors from 139 physicochemical features for Nb─Si alloys. The framework achieves <7% prediction error and guides the discovery of Nb38.5Ti38.5Si3Zr18V2 alloy with 22.791 MPa·m1/2 fracture toughness, breaking the 20 MPa·m1/2 barrier.
Dezhi Chen   +7 more
wiley   +1 more source

Effect of Pore Size and Porosity on the Biomechanical Properties and Cytocompatibility of Porous NiTi Alloys. [PDF]

open access: yesPLoS ONE, 2015
Five types of porous Nickel-Titanium (NiTi) alloy samples of different porosities and pore sizes were fabricated. According to compressive and fracture strengths, three groups of porous NiTi alloy samples underwent further cytocompatibility experiments ...
Yu-Tao Jian   +5 more
doaj   +1 more source

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