Surface Plasma Treatment of Poly(caprolactone) Micro, Nano, and Multiscale Fibrous Scaffolds for Enhanced Osteoconductivity

2014 ◽  
Vol 20 (11-12) ◽  
pp. 1689-1702 ◽  
Author(s):  
Deepthi Sankar ◽  
K.T. Shalumon ◽  
K.P. Chennazhi ◽  
Deepthy Menon ◽  
R. Jayakumar
RSC Advances ◽  
2018 ◽  
Vol 8 (68) ◽  
pp. 39106-39114 ◽  
Author(s):  
Anna A. Ivanova ◽  
Dina S. Syromotina ◽  
Svetlana N. Shkarina ◽  
Roman Shkarin ◽  
Angelica Cecilia ◽  
...  

This article reports on a study of the mineralisation behaviour of CaCO3 deposited on electrospun poly(ε-caprolactone) (PCL) scaffolds preliminarily treated with low-temperature plasma.


2006 ◽  
Vol 45 (6B) ◽  
pp. 5490-5494 ◽  
Author(s):  
Kou-Chiang Tsai ◽  
Wen-Fa Wu ◽  
Chuen-Guang Chao ◽  
Jain-Tsai Lee ◽  
Jwo-Lun Hsu

2017 ◽  
Vol 64 (12) ◽  
pp. 4875-4881 ◽  
Author(s):  
Minhan Mi ◽  
Xiao-Hua Ma ◽  
Ling Yang ◽  
Yang Lu ◽  
Bin Hou ◽  
...  

2011 ◽  
Vol 50 (1S1) ◽  
pp. 01AK02 ◽  
Author(s):  
Sang-Jin Cho ◽  
Jin-Woo Choi ◽  
In-Seob Bae ◽  
Trieu Nguyen ◽  
Jin-Hyo Boo

1994 ◽  
Vol 15 (3) ◽  
pp. 247-251 ◽  
Author(s):  
P. Masse ◽  
J. P. Cavrot ◽  
P. François ◽  
J. M. Lefebvre ◽  
B. Escaig

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Mohd Izzat Hassan ◽  
Tao Sun ◽  
Naznin Sultana

Tissue engineering fibrous scaffolds serve as three-dimensional (3D) environmental framework by mimicking the extracellular matrix (ECM) for cells to grow. Biodegradable polycaprolactone (PCL) microfibers were fabricated to mimic the ECM as a scaffold with 7.5% (w/v) and 12.5% (w/v) concentrations. Lower PCL concentration of 7.5% (w/v) resulted in microfibers with bead defects. The average diameter of fibers increased at higher voltage and the distance of tip to collector. Further investigation was performed by the incorporation of nanosized hydroxyapatite (nHA) into microfibers. The incorporation of 10% (w/w) nHA with 7.5% (w/v) PCL solution produced submicron sized beadless fibers. The microfibrous scaffolds were evaluated using various techniques. Biodegradable PCL and nHA/PCL could be promising for tissue engineering scaffold application.


Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1877
Author(s):  
Eva Stastna ◽  
Klara Castkova ◽  
Jozef Rahel

Nanofibers are well known as a beneficial type of structure for tissue engineering. As a result of the high acquisition cost of the natural polymers and their environmentally problematic treatment (toxic dissolution agents), artificial polymers seem to be the better choice for medical use. In the present study, polycaprolactone nano-sized fibrous structures were prepared by the electrospinning method. The impact of material morphology (random or parallelly oriented fibers versus continuous layer) and the presence of a fraction of hydroxyapatite nanoparticles on cell proliferation was tested. In addition, the effect of improving the material wettability by a low temperature argon discharge plasma treatment was evaluated, too. We have shown that both hydroxyapatite particles as well as plasma surface treatment are beneficial for the cell proliferation. The significant impact of both influences was evident during the first 48 h of the test: the hydroxyapatite particles in polycaprolactone fibers accelerated the proliferation by 10% compared to the control, and the plasma-treated ones enhanced proliferation by 30%.


2019 ◽  
Author(s):  
Серик Кажимович Бийжанов ◽  
Амангельды Токешович Канаев

В статье дается подробное описание процесса поверхностной плазменной обработки тяжело нагруженных стальных деталей. Для решения вопроса о типе структур, возникающих в зоне термического влияния и, следовательно, об их свойствах, определяются скорости охлаждения в каждом микрообъеме, с последующим сопоставлением с термокинетическими кривыми распада аустенита при определенной концентрации аустенита и максимальной температуре нагрева.The article provides a detailed description of the process of surface plasma treatment of heavily loaded steel parts. To solve the problem of the type of structures arising in the heat-affected zone and, therefore, their properties, the cooling rates in each microvolume are determined, followed by comparison with the thermokinetic austenite decomposition curves at a certain austenite concentration and maximum heating temperature.


2016 ◽  
Vol 89 ◽  
pp. 276-287 ◽  
Author(s):  
J. Trejbal ◽  
L. Kopecký ◽  
P. Tesárek ◽  
J. Fládr ◽  
J. Antoš ◽  
...  

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