Loo-Teck Ng
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Loo-Teck Ng has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
Salesh Swami
College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia
2 shared publicationsDuc Nguyen
School of Science, Food and Horticulture, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia
1 shared publicationEiji Yuba
Osaka Prefecture University
1 shared publicationKenji Kono
Osaka Prefecture University
1 shared publicationSamuel B Adeloju
Water and Sensor Research Group, School of Applied Sciences, Monash University, Churchill, Gippsland, Victoria 3842, Australia
1 shared publication
Latest Publications
- 14 October 2009
- Published by Springer Nature in Research on Chemical Intermediates
- Vol. 35 (8-9) , 1015-1025
Modification of liposome surface with pH-responsive polyampholytes for the controlled-release of drugs
- 14 October 2009
- Published by Springer Nature in Research on Chemical Intermediates
- Vol. 35 (8-9) , 1015-1025
Modification of liposome surface with pH-responsive polyampholytes for the controlled-release of drugs
- 1 March 2008
- Published by Wiley in Macromolecular Symposia
- Vol. 264 (1) , 1-7
NMR and Texture Analyses in Relation to Swelling Kinetics of 2-Hydroxyethyl Methacrylate/N-Vinylpyrrolidinone Hydrogels
- 1 March 2008
- Published by Wiley in Macromolecular Symposia
- Vol. 264 (1) , 1-7
NMR and Texture Analyses in Relation to Swelling Kinetics of 2-Hydroxyethyl Methacrylate/N-Vinylpyrrolidinone Hydrogels
- 3 April 2006
- Published by Wiley in Polymer International
- Vol. 55 (5) , 535-544
Copolymers of acrylic acid with N‐vinylpyrrolidinone and 2‐hydroxyethyl methacrylate as pH‐responsive hydrogels synthesized through a photoinitiator‐free photopolymerization technique
PH‐sensitive hydrogels for biomedical applications were synthesized using a photoinitiator‐free technique involving the initiation of photopolymerization by donor/acceptor pairs. The differential photocalorimetric technique indicated a high polymerization rate for the N‐vinylpyrrolidinone (NVP, donor)/acrylic acid (AA, acceptor) pair at a 1:1 molar ratio. However, photopolymerization of larger quantities of these monomers (1:1 molar ratio) produced a water‐soluble polymer. Nevertheless, an anionic hydrogel was successfully formed when a small quantity of 2‐hydroxyethyl methacrylate (HEMA) was included in the NVP/AA formulation. A mixture of HEMA and AA, although both are classified as acceptors, photopolymerized to produce a copolymer which functioned as an anionic hydrogel. The swelling and drug release of these hydrogels were investigated in acidic, neutral and basic pH environments. Their biocompatibility with HaCaT human epidermal keratinocyte cells was tested and a positive cell growth as evidenced by the 3‐[4,5‐dimethylthiazol‐2‐yl]‐2,5‐diphenyl tetrazolium bromide (MTT) cell proliferation assay indicated that these hydrogels have no toxic effect on HaCaT. Copyright © 2006 Society of Chemical Industry
- 3 April 2006
- Published by Wiley in Polymer International
- Vol. 55 (5) , 535-544
Copolymers of acrylic acid with N‐vinylpyrrolidinone and 2‐hydroxyethyl methacrylate as pH‐responsive hydrogels synthesized through a photoinitiator‐free photopolymerization technique
PH‐sensitive hydrogels for biomedical applications were synthesized using a photoinitiator‐free technique involving the initiation of photopolymerization by donor/acceptor pairs. The differential photocalorimetric technique indicated a high polymerization rate for the N‐vinylpyrrolidinone (NVP, donor)/acrylic acid (AA, acceptor) pair at a 1:1 molar ratio. However, photopolymerization of larger quantities of these monomers (1:1 molar ratio) produced a water‐soluble polymer. Nevertheless, an anionic hydrogel was successfully formed when a small quantity of 2‐hydroxyethyl methacrylate (HEMA) was included in the NVP/AA formulation. A mixture of HEMA and AA, although both are classified as acceptors, photopolymerized to produce a copolymer which functioned as an anionic hydrogel. The swelling and drug release of these hydrogels were investigated in acidic, neutral and basic pH environments. Their biocompatibility with HaCaT human epidermal keratinocyte cells was tested and a positive cell growth as evidenced by the 3‐[4,5‐dimethylthiazol‐2‐yl]‐2,5‐diphenyl tetrazolium bromide (MTT) cell proliferation assay indicated that these hydrogels have no toxic effect on HaCaT. Copyright © 2006 Society of Chemical Industry
- 16 November 2004
- Published by Wiley in Polymer International
- Vol. 54 (1) , 202-208
Photoinitiator‐free UV grafting of styrene, a weak donor, with various electron‐poor vinyl monomers to polypropylene film
This study investigated the possibility of using styrene, a weak donor forming donor(D)/acceptor(A) pairs with electron‐poor (EP) vinyl monomers, for initiating spontaneous photopolymerization and photografting of the copolymers onto polypropylene. Maleic anhydride (MA), methyl methacrylate (MMA), methyl acrylate (MAC), dimethyl maleate (DMMA), acrylonitrile (AN) and acrylic acid (AA) were the EP monomers used. Grafting yields together with FTIR analyses were used to confirm the presence of grafting. Styrene/MMA and styrene/AN systems achieved significant grafting, but such levels of grafting were not observed in the styrene/MAC and styrene/DMMA systems. No grafting was observed for styrene/AA or styrene/MA systems, but the latter system underwent photopolymerization. The effect of solvents on grafting was evaluated on styrene/MMA and styrene/AN systems and dimethylformamide (DMF) was found to retard grafting of both D/A systems. In contrast, chloroform and methanol enhanced grafting of the styrene/AN system although these two solvents had no significant effect on the grafting of the styrene/MMA system. Copyright © 2004 Society of Chemical Industry
- 16 November 2004
- Published by Wiley in Polymer International
- Vol. 54 (1) , 202-208
Photoinitiator‐free UV grafting of styrene, a weak donor, with various electron‐poor vinyl monomers to polypropylene film
This study investigated the possibility of using styrene, a weak donor forming donor(D)/acceptor(A) pairs with electron‐poor (EP) vinyl monomers, for initiating spontaneous photopolymerization and photografting of the copolymers onto polypropylene. Maleic anhydride (MA), methyl methacrylate (MMA), methyl acrylate (MAC), dimethyl maleate (DMMA), acrylonitrile (AN) and acrylic acid (AA) were the EP monomers used. Grafting yields together with FTIR analyses were used to confirm the presence of grafting. Styrene/MMA and styrene/AN systems achieved significant grafting, but such levels of grafting were not observed in the styrene/MAC and styrene/DMMA systems. No grafting was observed for styrene/AA or styrene/MA systems, but the latter system underwent photopolymerization. The effect of solvents on grafting was evaluated on styrene/MMA and styrene/AN systems and dimethylformamide (DMF) was found to retard grafting of both D/A systems. In contrast, chloroform and methanol enhanced grafting of the styrene/AN system although these two solvents had no significant effect on the grafting of the styrene/MMA system. Copyright © 2004 Society of Chemical Industry