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Dr Sharif Zein's Outputs (97)

Incorporation of inorganic carbon nanotubes fillers into the CA polymeric matrix for improvement in CO2/N2 separation (2015)
Journal Article
Jawad, Z. A., Ahmad, A. L., Low, S. C., & Zein, S. H. (2015). Incorporation of inorganic carbon nanotubes fillers into the CA polymeric matrix for improvement in CO2/N2 separation. Current nanoscience, 11(1), 69-79. https://doi.org/10.2174/1573413710666140922224633

Among all separation techniques, membrane technology has been shown to reduce CO 2 emissions without any phase changes due to its rapid, energy efficient process. The membrane-based gas separation must consist of a defect-free, thin, dense skin layer... Read More about Incorporation of inorganic carbon nanotubes fillers into the CA polymeric matrix for improvement in CO2/N2 separation.

Rebuttal to the comment on article "poly(3-hydroxybutyrate)-functionalised multi-walled carbon nanotubes/chitosan green nanocomposite membranes and their application in pervaporation" (2015)
Journal Article
Ong, Y. T., Ahmad, A. L., Zein, S. H. S., Sudesh, K., & Tan, S. H. (2016). Rebuttal to the comment on article "poly(3-hydroxybutyrate)-functionalised multi-walled carbon nanotubes/chitosan green nanocomposite membranes and their application in pervaporation". Separation and purification technology, 158, 94-95. https://doi.org/10.1016/j.seppur.2015.11.042

Influence of solvent exchange time on mixed matrix membrane separation performance for CO2/N2and a kinetic sorption study (2014)
Journal Article
Jawad, Z. A., Ahmad, A. L., Low, S. C., Chew, T. L., & Zein, S. H. (2015). Influence of solvent exchange time on mixed matrix membrane separation performance for CO2/N2and a kinetic sorption study. Journal of membrane science, 476, 590-601. https://doi.org/10.1016/j.memsci.2014.11.008

Carbon dioxide (CO 2 ) is the largest contributor of greenhouse gas emissions. Mixed matrix membranes (MMMs) have recently received attention as an attractive candidate for membrane-based separation, for which MMMs can serve as an alternative to conv... Read More about Influence of solvent exchange time on mixed matrix membrane separation performance for CO2/N2and a kinetic sorption study.

Carbon Nanotubes: Next-Generation Nanomaterials for Clean Water Technologies (2014)
Book Chapter
Ong, Y. T., Yee, K. F., Yeang, Q. W., Zein, S. H. S., & Tan, S. H. (2014). Carbon Nanotubes: Next-Generation Nanomaterials for Clean Water Technologies. In B. I. Kharisov, O. V. Kharissova, & H. R. Dias (Eds.), Nanomaterials for Environmental Protection (125-142). John Wiley and Sons. https://doi.org/10.1002/9781118845530.ch8

© 2014 John Wiley & Sons, Inc. Substantial progress and breakthroughs have been achieved for nanomaterials because of their nanometer size. Carbon nanotubes (CNTs), a type of nanomaterial, have received considerable interest worldwide because of th... Read More about Carbon Nanotubes: Next-Generation Nanomaterials for Clean Water Technologies.

Green tea polyphenol-reduced graphene oxide: derivatisation, reduction efficiency, reduction mechanism and cytotoxicity (2014)
Journal Article
Abdullah, M. F., Zakaria, R., & Zein, S. H. S. (2014). Green tea polyphenol-reduced graphene oxide: derivatisation, reduction efficiency, reduction mechanism and cytotoxicity. RSC advances, 4(65), 34510-34518. https://doi.org/10.1039/c4ra04292a

This paper reports on the derivatisation, reduction efficiency, reduction mechanism and cytotoxicity of green tea polyphenol-reduced graphene oxide (GTP-RGO). The reduction of graphene oxide (GO) at 90°C using a weight ratio (WR) of GTP/GO=1 resulted... Read More about Green tea polyphenol-reduced graphene oxide: derivatisation, reduction efficiency, reduction mechanism and cytotoxicity.

Future scope and directions of nanotechnology in creating next-generation supercapacitors (2014)
Book Chapter
Kiamahalleh, M. V., & Zein, S. H. S. (2014). Future scope and directions of nanotechnology in creating next-generation supercapacitors. In Nanostructured Ceramic Oxides for Supercapacitor Applications (153-190). CRC Press. https://doi.org/10.1201/b16522-10

The primary global research scheme of the 21st century is nanotechnology. Looking forward to the future, nanotechnologies’ generalized diffusion will seem to turn them into supplies, generating more space for privileged and superior values of applica... Read More about Future scope and directions of nanotechnology in creating next-generation supercapacitors.

A cellulose acetate/multi-walled carbon nanotube mixed matrix membrane for CO2/N2separation (2013)
Journal Article
Ahmad, A. L., Jawad, Z. A., Low, S. C., & Zein, S. H. (2014). A cellulose acetate/multi-walled carbon nanotube mixed matrix membrane for CO2/N2separation. Journal of membrane science, 451, 55-66. https://doi.org/10.1016/j.memsci.2013.09.043

Carbon dioxide (CO 2 ) emissions have been rising indiscriminately and are becoming a major contributor to Earth's greenhouse effect. One of the most promising means of separating the hazardous CO 2 gas is to develop a cost effective and high-perform... Read More about A cellulose acetate/multi-walled carbon nanotube mixed matrix membrane for CO2/N2separation.

Facile Synthesis of Silver Nanoparticles by Chemical Reduction Route (2013)
Journal Article
Ratnamalar, R., Mariatti, M., Ahmad, Z., & Zein, S. (2013). Facile Synthesis of Silver Nanoparticles by Chemical Reduction Route. Materials Science Forum, 756, 99-105. https://doi.org/10.4028/www.scientific.net/msf.756.99

This work reports a simple chemical reduction route for the preparation of uniformed Ag nanoparticles whereby a fine control over the sizes of the Ag nanoparticles was studied by varying the concentrations of the reducing agents used. In characteriza... Read More about Facile Synthesis of Silver Nanoparticles by Chemical Reduction Route.

Nanophase Hydroxyapatite as a biomaterial in advanced hard tissue engineering: A review (2013)
Journal Article
Zakaria, S. M., Sharif Zein, S. H., Othman, M. R., Yang, F., & Jansen, J. A. (2013). Nanophase Hydroxyapatite as a biomaterial in advanced hard tissue engineering: A review. Tissue Engineering: Parts A, B, and C, 19(5), 431-441. https://doi.org/10.1089/ten.teb.2012.0624

Hydroxyapatite is a biocompatible material that is extensively used in the replacement and regeneration of bone material. In nature, nanostructured hydroxyapatite is the main component present in hard body tissues. Hence, the state of the art in nano... Read More about Nanophase Hydroxyapatite as a biomaterial in advanced hard tissue engineering: A review.

Comparison of the pervaporation performance of various types of carbon nanotube-based nanocomposites in the dehydration of acetone (2013)
Journal Article
Yeang, Q. W., Zein, S. H. S., Sulong, A. B., & Tan, S. H. (2013). Comparison of the pervaporation performance of various types of carbon nanotube-based nanocomposites in the dehydration of acetone. Separation and purification technology, 107, 252-263. https://doi.org/10.1016/j.seppur.2013.01.031

The present work focuses on the functionalisation of multi-walled carbon nanotubes (MWCNTs) with poly(vinyl alcohol) (PVA) in order to improve the compatibility and dispersion of MWCNTs in a chitosan (CS) matrix. The resultant PVA-MWCNT/CS nanocompos... Read More about Comparison of the pervaporation performance of various types of carbon nanotube-based nanocomposites in the dehydration of acetone.

The Functionalization of Beta-Cyclodextrins on Multi Walled Carbon Nanotubes: Effects of the Dispersant and Non Aqueous Media (2013)
Journal Article
Latif Ahmad, A., Abbas Jawad, Z., Chun Low, S., & Hussein Sharif Zein, S. (2013). The Functionalization of Beta-Cyclodextrins on Multi Walled Carbon Nanotubes: Effects of the Dispersant and Non Aqueous Media. Current nanoscience, 9(1), 93-102. https://doi.org/10.2174/1573413711309010015

Sidewall functionalization by chemical agents can improve the dispersion of carbon nanotubes (CNTs), but the improvement is at the expense of their properties and structure. An environmentally friendly dispersant, cyclodextrins (CD), was revealed as... Read More about The Functionalization of Beta-Cyclodextrins on Multi Walled Carbon Nanotubes: Effects of the Dispersant and Non Aqueous Media.

The functionalization of beta-cyclodextrins on multi walled carbon nanotubes: Effects of the dispersant and non aqueous media (2013)
Journal Article
Ahmad, A. L., Jawad, Z. A., Low, S. C., & Sharif Zein, S. H. (2013). The functionalization of beta-cyclodextrins on multi walled carbon nanotubes: Effects of the dispersant and non aqueous media. Current nanoscience, 9(1), 93-102. https://doi.org/10.2174/157341313805117839

Sidewall functionalization by chemical agents can improve the dispersion of carbon nanotubes (CNTs), but the improvement is at the expense of their properties and structure. An environmentally friendly dispersant, cyclodextrins (CD), was revealed as... Read More about The functionalization of beta-cyclodextrins on multi walled carbon nanotubes: Effects of the dispersant and non aqueous media.

Cytocompatibility, bioactivity and mechanical strength of calcium phosphate cement reinforced with multi-walled carbon nanotubes and bovine serum albumin (2012)
Journal Article
Gholami, F., Zein, S. H. S., Gerhardt, L. C., Low, K. L., Tan, S. H., McPhail, D. S., Grover, L. M., & Boccaccini, A. R. (2013). Cytocompatibility, bioactivity and mechanical strength of calcium phosphate cement reinforced with multi-walled carbon nanotubes and bovine serum albumin. Ceramics international, 39(5), 4975-4983. https://doi.org/10.1016/j.ceramint.2012.11.094

This paper reports on the in vitro cytotoxicity, bioactivity behaviour and mechanical properties of novel injectable calcium phosphate cement filled with hydroxylated multi-walled carbon nanotubes and bovine serum albumin (CPC/MWCNT-OH/BSA). To predi... Read More about Cytocompatibility, bioactivity and mechanical strength of calcium phosphate cement reinforced with multi-walled carbon nanotubes and bovine serum albumin.

The electrochemical studies of the corrosion resistance behaviour of hydroxyapatite coatings on stainless steel fabricated by electrophoretic deposition (2012)
Journal Article
Chew, K. K., Zein, S. H. S., Ahmad, A. L., McPhail, D. S., & Abdullah, M. F. (2013). The electrochemical studies of the corrosion resistance behaviour of hydroxyapatite coatings on stainless steel fabricated by electrophoretic deposition. Journal of Industrial and Engineering Chemistry, 19(4), 1123-1129. https://doi.org/10.1016/j.jiec.2012.12.008

HA was coated on stainless steel (SS) 316L by using electrophoretic deposition to impart corrosion resistance upon SS 316L. Consequently, corrosion behaviour of HA coated SS 316L deposited from applied voltages 10. V to 60. V (denoted as HA/SS316L-10... Read More about The electrochemical studies of the corrosion resistance behaviour of hydroxyapatite coatings on stainless steel fabricated by electrophoretic deposition.

Hydroxyapatite nanoparticles: Electrospinning and calcination of hydroxyapatite/polyvinyl butyral nanofibers and growth kinetics (2012)
Journal Article
Zakaria, S. M., Sharif Zein, S. H., Othman, M. R., & Jansen, J. A. (2013). Hydroxyapatite nanoparticles: Electrospinning and calcination of hydroxyapatite/polyvinyl butyral nanofibers and growth kinetics. Journal of biomedical materials research. Part A, 101A(7), 1977-1985. https://doi.org/10.1002/jbm.a.34506

Electrospinning of hydroxyapatite (HA)/polyvinyl butyral solution resulted in the formation of fibers with average diameter of 937-1440 nm. These fibers were converted into HA nanoparticles with size < 100 nm after undergoing calcination treatment a... Read More about Hydroxyapatite nanoparticles: Electrospinning and calcination of hydroxyapatite/polyvinyl butyral nanofibers and growth kinetics.

Multiwalled carbon nanotubes based nanocomposites for supercapacitors: A review of electrode materials (2012)
Journal Article
Kiamahalleh, M. V., Zein, S. H. S., Najafpour, G., Sata, S. A., & Buniran, S. (2012). Multiwalled carbon nanotubes based nanocomposites for supercapacitors: A review of electrode materials. Nano, 7(2), Article 1230002. https://doi.org/10.1142/S1793292012300022

Electrode materials are the most important factors to verify the properties of the electrochemical supercapacitor. In this paper, the storage principles and characteristics of electrode materials, including carbon-based materials, transition metal ox... Read More about Multiwalled carbon nanotubes based nanocomposites for supercapacitors: A review of electrode materials.

Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications (2012)
Presentation / Conference Contribution
Chew, K. K., Zein, S. H. S., Ahmad, A. L., McPhail, D. S., & Boccaccini, A. R. Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications

Stainless steel (SS) is often used for orthopaedic and dental implants because of its excellent mechanical characteristics. However, from an electrochemical perspective, SS can be susceptible to corrosion-related problems. Inorganic bioactive coating... Read More about Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications.

The optimization of electrical conductivity using central composite design for polyvinyl alcohol/multiwalled carbon nanotube-manganese dioxide nanofiber composites synthesised by electrospinning (2012)
Journal Article
Zamri, M. F. M. A., Zein, S. H. S., Abdullah, A. Z., & Basir, N. I. (2012). The optimization of electrical conductivity using central composite design for polyvinyl alcohol/multiwalled carbon nanotube-manganese dioxide nanofiber composites synthesised by electrospinning. Journal of applied sciences (Asian Network for Scientific Information), 12(4), 345-353. https://doi.org/10.3923/jas.2012.345.353

This research reports the characterization and statistical analysis of electrical conductivity optimization for polyvinyl alcohol (PVA)/multiwalled carbon nanotube (MWCNT)-manganese dioxide (MnO 2 ) nanofiber composite. The Central Composite Design (... Read More about The optimization of electrical conductivity using central composite design for polyvinyl alcohol/multiwalled carbon nanotube-manganese dioxide nanofiber composites synthesised by electrospinning.