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Surface modification of 316L stainless steel by using pulsed laser

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Main Author: Phuah, Yong Zhen
Other Authors: Noorhafiza, Muhammad, Dr.
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2021
Subjects:
Coronary stent
Coronary Artery Disease (CAD)
Stent
Surface modification
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/70033
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spelling my.unimap-700332021-03-01T04:42:46Z Surface modification of 316L stainless steel by using pulsed laser Phuah, Yong Zhen Noorhafiza, Muhammad, Dr. Coronary stent Coronary Artery Disease (CAD) Stent Surface modification Access is limited to UniMAP community. Coronary stent is a mechanical medical devices design to open the arteries that have been affected by coronary artery disease (CAD). Blood vessel obstruction is the result of atherosclerosis by the buildup of smooth muscle cells, lipid containing vacuoles, calcification and additional cellular debris. Stent devices are introduced in clinical uses not to remove the obstruction but to create larger lumen within the lesion to provide smooth blood circulation. The introduction of stent to act as scaffold device to maintain the luminal integrity of the diseased coronary artery was able to return a patient’s normal lifestyle shortly after treatment. Despite all the advantages, in-stent restenosis caused by vascular smooth muscle cell (VSMC) proliferation and thrombosis caused by platelet aggregation remain the major complications of coronary stenting, which hamper the longterm success of the treatment. Pulsed laser surface modification approach holds great promise in overcoming the current limitations of stent therapy. The material must be biocompatible with the associated cells. To enhance the biocompatibility, researches have been done such as drug coating, changing of material composition and surface modification of the stent. Coating and changing material both had expensive manufacturing cost, it is not economical to undeveloped country, while surface modification is the cheapest in manufacturing cost which can also improve the stent biocompatibility. A total of 6 specimen with different texture design are produce and after running testing and analysis, 2 texture is selected in the end. Texture C-01 and S-01 are selected as the most promising texture. Defect such as recast layer, micro-crack also been reported relate to changes in input parameters. 2021-03-01T04:42:46Z 2021-03-01T04:42:46Z 2016-05 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/70033 en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Coronary stent
Coronary Artery Disease (CAD)
Stent
Surface modification
spellingShingle Coronary stent
Coronary Artery Disease (CAD)
Stent
Surface modification
Phuah, Yong Zhen
Surface modification of 316L stainless steel by using pulsed laser
description Access is limited to UniMAP community.
author2 Noorhafiza, Muhammad, Dr.
author_facet Noorhafiza, Muhammad, Dr.
Phuah, Yong Zhen
format Learning Object
author Phuah, Yong Zhen
author_sort Phuah, Yong Zhen
title Surface modification of 316L stainless steel by using pulsed laser
title_short Surface modification of 316L stainless steel by using pulsed laser
title_full Surface modification of 316L stainless steel by using pulsed laser
title_fullStr Surface modification of 316L stainless steel by using pulsed laser
title_full_unstemmed Surface modification of 316L stainless steel by using pulsed laser
title_sort surface modification of 316l stainless steel by using pulsed laser
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2021
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/70033
_version_ 1698698284938297344
score 13.214268

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