scholarly journals Biomimetic epidermal sensors assembled from polydopamine-modified reduced graphene oxide/polyvinyl alcohol hydrogels for the real-time monitoring of human motions

2020 ◽  
Vol 8 (46) ◽  
pp. 10549-10558
Author(s):  
Hua Zhang ◽  
Penggang Ren ◽  
Fan Yang ◽  
Jing Chen ◽  
Chenxu Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polyvinyl Alcohol ◽  
Pressure Sensor ◽  
Human Machine Interaction ◽  
Reduced Graphene ◽  
Healthcare Monitoring ◽  
Physically Crosslinked ◽  
Human Motions ◽  
Machine Interaction ◽  
Pva Hydrogel

A skin-matched soft strain/pressure sensor fabricated by fully physically crosslinked conductive PDA–rGO/PVA hydrogel is reported for sensitive healthcare monitoring and human-machine interaction.

Synthesis of reduced graphene oxide/aluminum nanocomposites via chemical-mechanical processes

2018 ◽  
Vol 52 (22) ◽  
pp. 3015-3025 ◽  
Author(s):  
Daeyoung Kim ◽  
Heon Kang ◽  
Donghyun Bae ◽  
Seungjin Nam ◽  
Manuel Quevedo-Lopez ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polyvinyl Alcohol ◽  
Specific Surface ◽  
Reduced Graphene Oxide ◽  
Surface Area ◽  
Specific Surface Area ◽  
Aluminum Powder ◽  
Mechanical Milling ◽  
Uniform Dispersion ◽  
Reduced Graphene

The present study employed a combination of solution-based synthesis and mechanical milling to develop reduced graphene oxide/aluminum composites, in order to achieve uniform dispersion of reduced graphene oxide and strong interfaces between reduced graphene oxide and aluminum. First, spherical aluminum powder was flattened via mechanical milling to afford a large specific surface area and many reaction sites for the graphene oxide. A hydrophilic surface was then created by coating the aluminum powder with polyvinyl alcohol. The polyvinyl alcohol-coated aluminum slurry was mixed with a graphene oxide suspension, thereby inducing a reaction between graphene oxide and polyvinyl alcohol via hydrogen bonding. After thermal reduction, the composite powder was further ball milled and hot-pressed at 500℃ to produce a reduced graphene oxide/aluminum composite. The dispersion of reduced graphene oxide in the composite, as well as the mechanical and thermal behaviors of the composite, improved with increased flattening and specific surface area of the starting aluminum powder.

Design, fabrication and testing of reduced graphene oxide strain gauge based pressure sensor with increased sensitivity

2018 ◽  
Vol 24 (7) ◽  
pp. 2969-2981 ◽  
Author(s):  
M. S. Manjunath ◽  
N. Nagarjuna ◽  
G. Uma ◽  
M. Umapathy ◽  
M. M. Nayak ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pressure Sensor ◽  
Strain Gauge ◽  
Reduced Graphene ◽  
Increased Sensitivity

Highly Sensitive Pressure Sensor Array With Photothermally Reduced Graphene Oxide

2015 ◽  
Vol 36 (2) ◽  
pp. 180-182 ◽  
Author(s):  
Rouzbeh Kazemzadeh ◽  
Kimball Andersen ◽  
Lazarus Motha ◽  
Woo Soo Kim
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pressure Sensor ◽  
Sensor Array ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Sensitive Pressure

scholarly journals Self-assembled and intercalated film of reduced graphene oxide for a novel vacuum pressure sensor

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Sung Il Ahn ◽  
Jura Jung ◽  
Yongwoo Kim ◽  
Yujin Lee ◽  
Kukjoo Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pressure Sensor ◽  
Vacuum Pressure ◽  
Reduced Graphene ◽  
Self Assembled
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