Advertisement

Topics

Thermally Responsive Torsional and Tensile Fiber-actuator Based on Graphene Oxide.

08:00 EDT 3rd September 2018 | BioPortfolio

Summary of "Thermally Responsive Torsional and Tensile Fiber-actuator Based on Graphene Oxide."

Graphene based actuators are of practical interest because of their relatively low cost compared with other nano-carbon materials, such as carbon nanotubes. We demonstrate the simple fabrication of graphene oxide (GO)-based fibers with infiltrated Nylon-6,6 polymer by wet-spinning. These fibers could be twisted to form torsional actuators and further coiled to form tensile actuators. By control the relative twisting and coiling direction of the GO/Nylon fiber, we were able to realise reversible contraction or elongation actuation with strokes as high as -80% and 75%, respectively, when the samples were heated to 200oC. The tensile actuation showed remarkably little hysteresis. Moreover, this GO/Nylon actuator could lift loads over 100 times heavier than itself, and generate stable actuation at high temperatures over the melting point of the polymer. This novel kind of GO-based actuator, which has multi-directional actuation, have potential for a wide range of applications such as artificial muscles, robotics, and temperature sensing.

Affiliation

Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252
Pages:

Links

DeepDyve research library

PubMed Articles [15771 Associated PubMed Articles listed on BioPortfolio]

Ultratough Bioinspired Graphene Fiber via Sequentially Toughening of Hydrogen and Ionic Bonding.

Graphene-based fibers synthesized under ambient temperature have not achieved excellent mechanical properties of high toughness or tensile strength compared with those synthesized by hydrothermal stra...

Fiber Bragg grating-based sensor for torque and angle measurement in a series elastic actuator's spring.

Conventional technologies to monitor torque feedback and angle in exoskeleton actuators are bulky and sensitive to misalignments, and do not allow for multiplexed operation. Fiber Bragg grating (FBG)-...

Modification of a steel fiber with a graphene based bucky gel for headspace solid-phase microextraction of volatile aromatic hydrocarbons prior to their quantification by GC.

A graphene based bucky gel-coated stainless steel fiber was prepared and applied to headspace solid phase microextraction of volatile organic compounds. Graphene was mixed with an ionic liquid to prod...

Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites.

Graphene shows a great potential for high-performance thermally conductive composite applications because of its extremely high thermal conductivity. However, the graphene-based polymer composites rep...

Periodic ripples on thermally-annealed graphene on Cu (110) - reconstruction or moiré pattern?

We have used Ultrahigh Vacuum (UHV) Scanning tunneling microscopy (STM) to investigate the effect of thermal annealing of graphene grown by chemical vapor deposition (CVD) on a Cu(110) foil. We show t...

Clinical Trials [3352 Associated Clinical Trials listed on BioPortfolio]

Comparison of the Torsional Handpiece to Conventional Handpiece During Routine Phacoemulsification

The purpose of this study is to evaluate the visual outcomes, amount of inflammation, endothelial cell loss, and the efficiency of a torsional handpiece compared to a conventional handpiec...

Prebiotic Fiber in the ICU

This is a pilot trial testing enteral feeds that are high versus low in prebiotic fiber in 20 critically ill adults. The long-term goal is to determine the efficacy of fiber for the preven...

Fuchs' Torsional Phaco Study

The primary objective is to compare the effect of torsional phacoemulsification and longitudinal phacoemulsification on central and peripheral corneal thickness/volume after cataract surge...

Anti-inflammatory Effects of the Fiber

This study will help elucidate the mechanism underlying the cardioprotective and anti-diabetes effect of dietary fiber by exploring a comprehensive set of inflammatory and oxidative stress...

Study of an External Responsive Neurostimulator System on Epileptiform Activity

This feasibility clinical investigation is designed to demonstrate that the NeuroPace external Responsive Neurostimulator (model eRNS-300) can safely deliver responsive electrical stimulat...

Medical and Biotech [MESH] Definitions

A TEXTILE fiber obtained from the pappus (outside the SEEDS) of cotton plant (GOSSYPIUM). Inhalation of cotton fiber dust over a prolonged period can result in BYSSINOSIS.

Techniques using laser energy in combination with a balloon catheter to perform angioplasty. These procedures can take several forms including: 1, laser fiber delivering the energy while the inflated balloon centers the fiber and occludes the blood flow; 2, balloon angioplasty immediately following laser angioplasty; or 3, laser energy transmitted through angioplasty balloons that contain an internal fiber.

Antineoplastic agents that are used to treat hormone-sensitive tumors. Hormone-sensitive tumors may be hormone-dependent, hormone-responsive, or both. A hormone-dependent tumor regresses on removal of the hormonal stimulus, by surgery or pharmacological block. Hormone-responsive tumors may regress when pharmacologic amounts of hormones are administered regardless of whether previous signs of hormone sensitivity were observed. The major hormone-responsive cancers include carcinomas of the breast, prostate, and endometrium; lymphomas; and certain leukemias. (From AMA Drug Evaluations Annual 1994, p2079)

Gram-negative aerobic rods, isolated from surface water, mud, or thermally polluted lakes or streams. It is pathogenic for man and it has no known soil or animal sources.

Gram-negative aerobic rods found in warm water (40-79 degrees C) such as hot springs, hot water tanks, and thermally polluted rivers.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article