rGO–CMC fiber supercapacitors with core-sheath structure manufactured by coaxial extrusion printing

Author(s):  
Yuqi Gao ◽  
Junjun Ding
2019 ◽  
Vol 25 (11) ◽  
pp. 1249-1264 ◽  
Author(s):  
Amoljit Singh Gill ◽  
Parneet Kaur Deol ◽  
Indu Pal Kaur

Background: Solid free forming (SFF) technique also called additive manufacturing process is immensely popular for biofabrication owing to its high accuracy, precision and reproducibility. Method: SFF techniques like stereolithography, selective laser sintering, fused deposition modeling, extrusion printing, and inkjet printing create three dimension (3D) structures by layer by layer processing of the material. To achieve desirable results, selection of the appropriate technique is an important aspect and it is based on the nature of biomaterial or bioink to be processed. Result & Conclusion: Alginate is a commonly employed bioink in biofabrication process, attributable to its nontoxic, biodegradable and biocompatible nature; low cost; and tendency to form hydrogel under mild conditions. Furthermore, control on its rheological properties like viscosity and shear thinning, makes this natural anionic polymer an appropriate candidate for many of the SFF techniques. It is endeavoured in the present review to highlight the status of alginate as bioink in various SFF techniques.


Author(s):  
Tianle Zheng ◽  
Jianwei Xiong ◽  
Xiaotang Shi ◽  
Bingying Zhu ◽  
Ya-Jun Cheng ◽  
...  

Mycologia ◽  
1983 ◽  
Vol 75 (2) ◽  
pp. 333 ◽  
Author(s):  
John S. Gardner ◽  
James V. Allen ◽  
W. M. Hess ◽  
R. K. Tripathi

RSC Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 439-447 ◽  
Author(s):  
Rui Dou ◽  
Shuanglin Li ◽  
Yan Shao ◽  
Bo Yin ◽  
Mingbo Yang

A hierarchical tri-continuous structure is formed and controlled in PVDF/PS/HDPE ternary blends. A very high level of PS continuity, about 80%, is achieved only with a PS volume composition as low as 11 vol%.


2009 ◽  
Vol 87-88 ◽  
pp. 265-270
Author(s):  
Shi Yuan Sun ◽  
Qing Fu Zhao ◽  
Yuan Xue

Spinning and finishing techniques of a durable softening and water-repellent PP/HDPE heat-bondable fiber were introduced. The fiber has a core-sheath structure. PP is the core and HDPE is the sheath. The core-sheath fiber structure and spinning materials properties make the fiber have a good heat-bonding performance. During the finishing process the fiber got a durable softening and water-repellent quality by the durable waterproofing agent—a mixture of PMHS and PDMS. Experiments show that the fibers begin to melt and bond each other at 127.5°C and could keep a good water-repellent performance after being washed five circles.


1989 ◽  
Vol 22 (1) ◽  
pp. 90-93 ◽  
Author(s):  
I J Donnelly ◽  
P A Watterson

2003 ◽  
Vol 31 (5) ◽  
pp. 1032-1037 ◽  
Author(s):  
Young Wook Choi ◽  
Hae-June Lee

2017 ◽  
Vol 25 (0) ◽  
pp. 111-120 ◽  
Author(s):  
Arzu Yavas ◽  
Ozan Avinc ◽  
Görkem Gedik

The success of suture yarn depends upon its tensile and bending properties. As sutures pass through the tissue, it should possess enough strength to hold the tissue together and should be flexible so as to be knotted. The aim of the present work was to improve the strength of silk suture without affecting its bending properties. Silk sutures were fabricated using a circular braiding machine. Structural variations were made by varying the diameter and by producing core sheath suture yarn. The resulting suture yarn is coated with chitosan – a biopolymer. The mechanical performances of suture materials coated with and without chitosan were studied and compared with commercial suture. It was observed that the suture with a core-sheath structure performed well during tensile and knot testing. The coarser yarns exhibited higher bending rigidity and lower knot strength than the finer suture yarns.


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