Results 71 to 80 of about 875,699 (243)

A Versatile‐Designable Framework for Active and Programmable Shape‐Morphing Soft Matter Systems: From Inverse Design to Closed‐Loop Control

Advanced Science, EarlyView.
A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu, Peiling Xie, Ruitong Song, Banghan Liu, Rui Guo, Jiu‐an Lv   +5 more
wiley   +1 more source

Surface Durability of 3D-Printed Polymer Gears

Applied Sciences
This paper proposes a series of experimental determinations carried out with the aim of generating new conclusions regarding the ability of 3D-printed gears to be integrated into mechanisms without lubrication.
Robert Ciobanu, Ciprian Ion Rizescu, Dana Rizescu, Bogdan Gramescu   +3 more
doaj   +1 more source

Bioactive Graphene Quantum Dots Based Polymer Composite for Biomedical Applications

, 2022
Today, nanomedicine seeks to develop new polymer composites to overcome current problems in diagnosing and treating common diseases, especially cancer.
Navid Omidifar, Bahrani, Sonia, Seyyed Alireza Hashemi, Hashemi, Seyyed Alireza, Neralla Vijayakameswara Rao, Seyyed Mojtaba Mousavi, Ahmad Gholami, Wei-Hung Chiang, Aziz Babapoor, Vijayakameswara Rao, Neralla, Masoomeh Yari Kalashgrani, Omidifar, Navid, Gholami, Ahmad, Kalashgrani, Masoomeh Yari, Babapoor, Aziz, Sonia Bahrani, Mousavi, Seyyed Mojtaba, Chiang, Wei-Hung   +17 more
core   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

Service Life and Failure Analysis of Nylon, Polycarbonate, and IGUS i180 Polymer Gears Made by Additive Manufacturing

Machines
An assessment of different materials for additive manufacturing (AM) of polymer gears is presented in this research. Experimental testing is carried out for three different materials. Two materials are selected as the most common materials used for gears
Adis J. Muminović, Sunita Bektašević, Enis Muratović, Nedim Pervan, Jasmin Smajić, Adil Muminović, Isad Šarić, Elmedin Mešić, Mirsad Trobradović, Muamer Delić   +9 more
doaj   +1 more source

Fatigue Life Analysis of the Plastic Helical Gear and Steel Worm Transmission Mechanism

Jixie chuandong, 2023
The rapid development of polymer materials has promoted the trend of plasticization of metal gears in medium and low load gear transmissions. Plastic helical gears are often used to replace metal worm gears in the worm and helical gear transmission, but ...
Liu Ganhua, Wang Qi, Tang Naifu
doaj  

Changes in articular cartilage after meniscectomy and meniscus replacement using a biodegradable porous polymer implant [PDF]

, 2010
Purpose: To evaluate the long-term effects of implantation of a biodegradable polymer meniscus implant on articular cartilage degeneration and compare this to articular cartilage degeneration after meniscectomy.
Arend Jan Schouten, Buma, Pieter,, Schouten, Arend Jan,, Hannink, Gerjon, Buma, P., Buma, Pieter, Tienen, Tony G. van,, Tienen, T.G. van, Gerjon Hannink, Pieter Buma, Tienen, Tony G. van, Hannink, G.J., Schouten, A.J., Tony G. van Tienen, van Tienen, Tony G., Schouten, Arend Jan, de Mulder, E.L., Hannink, Gerjon,   +17 more
core   +6 more sources

A Robotic Testing Platform for Pipelined Discovery of Resilient Dielectric Elastomer Actuators

Advanced Science, EarlyView.
This work introduces a robotic testing platform enabling high‐throughput, multi‐parameter lifetime mapping of linear dielectric elastomer actuators (DEAs). By integrating programmable high‐voltage control and automated electromechanical measurements, the system identifies material and operating conditions that double actuator lifetime.
Ang (Leo) Li, Alexander Yin, Alexander White, Sahib Sandhu, Anatol Gogoj, Denise Maria de Andrade, Matthew Francoeur, Victor Jimenez‐Santiago, Van Remenar, Codrin Tugui, Mihai Duduta   +10 more
wiley   +1 more source

Self-healing polymer nanocomposite materials: A review [PDF]

, 2015
This article is under embargo until July 9, 2017, per publisher policy.During the last few years, different kinds of autonomic and non-autonomic self-healing materials have been prepared using diverse techniques for a number of applications.
Kessler, Michael, Thakur, Vijay Kumar, Vijay Kumar Thakur, Thakur, Vijay, Michael R. Kessler   +4 more
core   +1 more source

Regulating Cells Fate and Function to Facilitate Bone Regeneration via Designing Programmable Bio‐Interactive Materials

Advanced Science, EarlyView.
This article aims to elucidate the biological mechanisms of bone repair and the evolution of material design, highlighting key cellular and molecular processes. It further proposes strategies and prospects for programmable bio‐interactive materials, which enable precisely guided bone tissue regeneration by dynamically regulating cell behavior and the ...
Qingrui Fan, Fuming Cao, Junqiang Mao, Pengbin Yin, Licheng Zhang, Jianjun Wang, Peifu Tang   +6 more
wiley   +1 more source