Cover Page November-2019-Advanced Materials Letters

Advanced Materials Letters

Volume 10, Issue 11, Pages 802-806, November 2019
About Cover

Electric vehicles have seen steady development and growth over the last half-decade. The integration of modern technologies like Artificial Intelligence and Machine Learning leading the advancements in the lives and durability of batteries and their efficiency. With each passing year, electric mobility is seeing new heights. And more than 2 million electric vehicles started running on the road which is a record for a calendar year. If the current trends continue, the number of electric vehicles that would be sold in the year 2030 could be as high as 43 million. The cover photo of this November 2019 issue is inspired by the editorial article written by Dr. Ashutosh Tiwari on Current Global Scenario of Electric Vehicles.


Digital Light Processing (DLP) 3D Printing of Polyethylene Glycol (PEG) Biopolymer, Commercially available Ultra-High and Tough (UHT) Resin and Maghemite (γ-Fe2O3) Nanoparticles Mixture for Tissue Engineering Scaffold Application

Nor Hasrul Akhmal Ngadiman1, Muhammad Aniq Barid Basri1, Noordin Mohd Yusof1,*, Ani Idris2, Ehsan Fallahiarezoudar3

1School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, Johor, 81310 Malaysia

2School of Chemical Engineering, Faculty of Engineering, C/o Institute of Bioproduct Development, Universiti Teknologi Malaysia, Johor Bahru, Johor, 81310 Malaysia

3Department of Industrial Engineering, Faculty of Engineering, East of Guilan, University of Guilan, Guilan, Roudsar, 4199613776 Iran

Adv. Mater. Lett., 2019, 10 (11), pp 802-806

DOI: 10.5185/amlett.2019.0023

Publication Date (Web): Oct 04, 2019

E-mail: noordin@mail.fkm.utm.my

Abstract

Digital Light Processing (DLP) 3D printing process has been used with standard, commercially available ultra-high and tough (UHT) photopolymer resin to produce for various 3D parts. Polyethylene glycol (PEG) biopolymer has been used extensively in biomedicine due to its excellent performance in biocompatibility and hydrophilicity. However, it offers low mechanical strength. The inclusion of maghemite (γ-Fe2O3) nanoparticles have been found to be able to increase the mechanical properties of TE scaffolds fabricated using a combination of processes. This study aims at exploring the possibility of using various mixtures which consists of different combinations UHT resin, PEG solution and γ-Fe2O3 nanoparticles with the DLP 3D printer system. The effects of various quantities of mixtures were investigated in terms of their mechanical and biocompatibility properties with a view of producing TE scaffolds. The results from this study proves that the simpler, DLP 3D printer system can be used with a mixture of standard photopolymer and biopolymer resins, and nanoparticles.  The addition of PEG and γ-Fe2O3 enhanced the mechanical and biocompatibility properties of the developed structure. © VBRI Press.

Keywords

Tissue engineering scaffold, biomaterials, nanoparticle, 3D printer.

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