Results 41 to 50 of about 56,254 (315)

Polymer‐Incorporated Mechanically Compliant Carbon Nanotube Microelectrode Arrays for Multichannel Neural Signal Recording

Advanced Functional Materials, EarlyView.
This work presents a soft microelectrode array based on vertically aligned carbon nanotube (CNT) forests, combining high conductivity with mechanical softness. A densification process and air‐pressure‐assisted flexibilization improve structural integrity, ensuring stable insertion and reduced inflammation.
Hyeonhee Roh, Kwangjun Kim, Chaesung Kim, Minju Kim, Minwook Kim, Sangjun Sim, Jongbaeg Kim, Jong G. Ok, Maesoon Im   +8 more
wiley   +1 more source

Nanoparticles Decorated Nanotubes: Advanced Local Therapies From Anodized Nanoengineered Titanium Implants

Advanced Functional Materials, EarlyView.
This comprehensive review explores therapeutic titanium implants designed to enhance integration and provide superior antibacterial efficacy. It is focused on anodized titanium implants with titania nanotubes (TNTs) loaded with nanoparticles (NPs) for local therapeutic release, enhancing bioactivity and bactericidal functions.
Divya Chopra, Liwen Zhang, Tianqi Guo, Sašo Ivanovski, Ruirui Qiao, Karan Gulati   +5 more
wiley   +1 more source

Novel Dual-Threaded Pedicle Screws Provide Fixation Stability That Is Comparable to That of Traditional Screws with Relative Bone Preservation: An In Vitro Biomechanical Study

Applied Sciences, 2022
Replacement with larger diameter screws is always used in pedicle screw loosening but carries a risk of pedicle wall violation. A pedicle screw with more preserved bone stock is the preferred primary fixation choice.
Ming-Kai Hsieh, Yun-Da Li, Yun-Ja Hsu, Tsung-Ting Tsai, Po-Liang Lai, De-Mei Lee, Ching-Lung Tai   +6 more
doaj   +1 more source

An approximate model for cancellous bone screw fixation [PDF]

Computer Methods in Biomechanics and Biomedical Engineering, 2013
This paper presents a finite element (FE) model to identify parameters that affect the performance of an improved cancellous bone screw fixation technique, and hence potentially improve fracture treatment. In cancellous bone of low apparent density, it can be difficult to achieve adequate screw fixation and hence provide stable fracture fixation that ...
Brown, CJ, Sinclair, RA, Day, A, Hess, B, Procter, P   +4 more
openaire   +5 more sources

Tent screws: Predictable guided bone regeneration

Journal of Indian Society of Periodontology, 2023
Abstract Bone regeneration of large maxillary and mandibular alveolar ridge defects is clinically challenging. Various techniques have been described for the reconstruction of these deficiencies before implant placement. The tent screw-pole technique is one of the effective methods available for clinicians to perform the predictable ...
Farhan Durrani, Preeti Singh, Aishwarya Pandey, Kaushal Pati Tripathi, J P Vishnu, Fouzia Imran, Aabida Taslim   +6 more
openaire   +3 more sources

Buckling‐Resistant and Trace‐Stacked (BRATS) Design Enables Aid‐Free Implantation of Flexible Multielectrode Array with Minimized Inflammatory Tissue Response

Advanced Functional Materials, EarlyView.
Buckling‐resistant and trace‐stacked (BRATS) intracortical microelectrode arrays (MEAs) eliminate the need for insertion aid and complex surgical setup, resulting in minimal inflammatory tissue response, compared to conventional flexible MEAs inserted with aid. Trace stacking effectively doubled the channel count without increasing the MEA shank width,
May Yoon Pwint, Delin Shi, X. Tracy Cui
wiley   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

Advanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung, Tae Jin Jang, Sang Yoon Song, Chang‐Gi Lee, Jun Ho Lee, Young‐Kyun Kim, Sang‐Ho Oh, Byeong‐Joo Lee, Alireza Zargaran, Se‐Ho Kim, Young‐Sang Na, Seok Su Sohn   +11 more
wiley   +1 more source

Uniting 4D Printing and Melt Electrowriting for the Enhancement of Regenerative Small Diameter Vascular Grafts

Advanced Healthcare Materials, EarlyView.
A hybrid 4D printing strategy enables the fabrication of shape‐morphing, mechanically reinforced tubular constructs for vascular tissue engineering. By combining alginate‐methylcellulose hydrogels with melt electrowritten polycaprolactone fibers and protein‐based functionalization, this platform supports spatially organized co‐cultures of fibroblasts ...
Max von Witzleben, Akvilė Gasiūnaitė, Marlene Ihle, Ashwini Rahul Akkineni, Kathleen Schütz, Tilman Ahlfeld, Michael Gelinsky, Anja Lode, Sarah Duin   +8 more
wiley   +1 more source

A Modular Perfusion Bioreactor Platform for Simulating Bone Regeneration and Fracture Healing: Integrating Mechanical Loading and Dual Perfusion for Advanced In Vitro Models

Advanced Healthcare Materials, EarlyView.
A modular bioreactor platform was developed in order to replicate bone homeostasis and pathology, thereby integrating mechanical loading, dynamic perfusion, and a 3D‐printed microfluidic chamber. With precise control of environmental parameters and dual perfusion for composite tissue models, the system enhances physiological relevance for studying bone
Moritz Pfeiffenberger, Alexandra Damerau, Johannes Plank, Adel Ahmed, Mario Thiele, Jan Saam, Paula Hoff, Timo Gaber, Frank Buttgereit   +8 more
wiley   +1 more source

Fracture Compression and Construct Stability with Variable Pitch Locking Screws in Cadaveric Specimens

Foot & Ankle Orthopaedics
Category: Trauma; Basic Sciences/Biologics Introduction/Purpose: A variable pitch locking screw is intended to provide interfragmentary compression combined with fixed angle stability of locking plate constructs.
Zachary A. Koroneos BS, Shelby Alwine BS, Peter Tortora BS, Michaela D. Pitcher BS, Christian Benedict BS, Hwabok Wee PhD., Allen Kunselman MA, Greg Lewis PhD., Michael Aynardi MD   +8 more
doaj   +1 more source