A self-healing hydrogel with pressure sensitive photoluminescence for remote force measurement and healing assessment

2019 ◽  
Vol 6 (4) ◽  
pp. 703-710 ◽  
Author(s):  
Ming Li ◽  
Weijun Li ◽  
Wei Cai ◽  
Xiaojie Zhang ◽  
Zhihang Wang ◽  
...  
Keyword(s):  
Network Structure ◽  
Force Measurement ◽  
Self Healing ◽  
Pressure Sensitive ◽  
Healing Assessment

A self-healing hydrogel with a triple network structure and pressure sensitive photoluminescence for remote force measurement and healing assessment was successfully fabricated.

scholarly journals Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis

2019 ◽  
Vol 9 (8) ◽  
pp. 1537 ◽  
Author(s):  
Choonghyun Kang ◽  
Taewan Kim
Keyword(s):  
Neutral Axis ◽  
The Self ◽  
Strain Gauges ◽  
Self Healing ◽  
Distinct Area ◽  
Before And After ◽  
Strength And Stiffness ◽  
Underlying Mechanisms ◽  
Healing Assessment ◽  
Physical Recovery

The self-healing nature of concrete has been proved in many studies using various methods. However, the underlying mechanisms and the distinct area of self-healing have not been identified in detail. This study focuses on the limits of the area of self-healing. A bending specimen with a notch is used herein, and its flexural strength and stiffness before and after healing are compared and used for self-healing assessment. In addition, the neutral axis of the specimen was measured using successive strain gauges attached to the crack propagation part. Although the strength and stiffness of the concrete recovered after self-healing, the change in the location of the neutral axis before and after healing was insignificant, which indicates that physical recovery did not occur for once-opened crack areas.

A novel highly stretchable, adhesive and self-healing silk fibroin powder-based hydrogel containing dual-network structure

2019 ◽  
Vol 252 ◽  
pp. 126-129 ◽  
Author(s):  
Cai Wang ◽  
Yili Du ◽  
Biyan Chen ◽  
Shaojun Chen ◽  
Yiping Wang
Keyword(s):  
Silk Fibroin ◽  
Network Structure ◽  
Self Healing ◽  
Highly Stretchable

Reliable Self-Healing WDM Mesh Network Structure

2010 ◽  
Author(s):  
Ching-Hung Chang ◽  
Peng-Chun Peng ◽  
Yi-Tzai Lin ◽  
Jen-Wei Sun ◽  
Hai-Han Lu
Keyword(s):  
Network Structure ◽  
Mesh Network ◽  
Self Healing

One-pot fabrication of triple-network structure hydrogels with high-strength and self-healing properties

2017 ◽  
Vol 207 ◽  
pp. 53-56 ◽  
Author(s):  
Yixi Wang ◽  
Jiayu Yan ◽  
Zhicun Wang ◽  
Jianning Wu ◽  
Guihua Meng ◽  
...  
Keyword(s):  
Network Structure ◽  
High Strength ◽  
Self Healing ◽  
One Pot

scholarly journals Clinical effectiveness of implant support for distal extension removable partial dentures: functional evaluation using occlusal force measurement and masticatory efficiency

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Kei Murakami ◽  
Yasunori Ayukawa ◽  
Yoichiro Ogino ◽  
Akinari Nakagawa ◽  
Tadashi Horikawa ◽  
...  
Keyword(s):  
Force Measurement ◽  
Clinical Effectiveness ◽  
The Other ◽  
Functional Evaluation ◽  
Masticatory Performance ◽  
Occlusal Force ◽  
Pressure Sensitive ◽  
Masticatory Efficiency ◽  
Efficiency Condition ◽  
Distal Extension

Abstract Background Implant-supported removable partial dentures (ISRPD) are supported at the free-end region with implant retainers. As implant retainers prevent denture settlement and facilitate denture retention, this is intended to improve masticatory performance in comparison with that of conventional removable dentures. In the present study, we evaluated the effect of implant retainers at the free-end region of removable dentures on occlusal force and masticatory efficiency using a pressure-sensitive sheet, and measured glucose concentration in saliva after mastication with gummy candy. Methods In the present study, the occlusal force and masticatory efficiency of 13 subjects were measured in the following three conditions: without dentures (Condition 1), wearing dentures but not supported by implants (Condition 2), and wearing dentures supported by implants (ISRPD) (Condition 3). All data were statistically compared. Results Regarding the occlusal force, Condition 3 showed significantly higher scores than the other conditions; however, there were no significant differences between Conditions 1 and 2. Regarding the masticatory efficiency, Condition 3 showed significantly higher scores than Condition 2. Conclusions With ISRPD, the occlusal force and masticatory efficiency were increased in comparison with those with conventional removable dentures.

scholarly journals Self-Healing Behavior of Polymer/Protein Hybrid Hydrogels

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 130
Author(s):  
Maria Bercea
Keyword(s):  
Bovine Serum Albumin ◽  
Network Structure ◽  
Viscoelastic Properties ◽  
Reduced Glutathione ◽  
Viscoelastic Behavior ◽  
The Self ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Porous Network ◽  
Hybrid Hydrogels

The paper presents the viscoelastic properties of new hybrid hydrogels containing poly(vinyl alcohol) (PVA), hydroxypropylcellulose (HPC), bovine serum albumin (BSA) and reduced glutathione (GSH). After heating the mixture at 55 °C, in the presence of GSH, a weak network is formed due to partial BSA unfolding. By applying three successive freezing/thawing cycles, a stable porous network structure with elastic properties is designed, as evidenced by SEM and rheology. The hydrogels exhibit self-healing properties when the samples are cut into two pieces; the intermolecular interactions are reestablished in time and therefore the fragments repair themselves. The effects of the BSA content, loaded deformation and temperature on the self-healing ability of hydrogels are presented and discussed through rheological data. Due to their versatile viscoelastic behavior, the properties of PVA/HPC/BSA hydrogels can be tuned during their preparation in order to achieve suitable biomaterials for targeted applications.

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