Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system
The self-assembly behaviour of two alkyl polyglucosides (APG) surfactants; octyl/decyl polyglucosides (SAPG) and dodecyl/tetradecyl/hexadecyl polyglucosides (LAPG) in aqueous solution was studied. Critical micelle concentrations (CMC) of the surfactants were determined to predict onset point of surf...
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| Format: | Article |
| Language: | English |
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Elsevier
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/22279/1/Self-assembly%20behaviour%20of%20alkylpolyglucosides%20%28APG%29%20in%20mixed%20surfactant-stabilized%20emulsions%20system.pdf |
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| author | Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha |
| author_facet | Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha |
| author_sort | Lim, Chaw Jiang |
| collection | UPM |
| description | The self-assembly behaviour of two alkyl polyglucosides (APG) surfactants; octyl/decyl polyglucosides (SAPG) and dodecyl/tetradecyl/hexadecyl polyglucosides (LAPG) in aqueous solution was studied. Critical micelle concentrations (CMC) of the surfactants were determined to predict onset point of surfactants self-assembly. The surfactants were prepared at concentrations 5 × 10− 3, 5 × 10− 2 and 5% (w/w). Transmission electron microscopy (TEM) study showed that the surfactants with spherical-like structure self-assembled to simple rod-like, and then to aggregated rod-like structures with increasing concentration. The results showed that LAPG exhibited larger aggregate than SAPG. The distinctive evolution of self-assembly structures was observed when ethoxylated 3-(3-hydroxypropyl)-heptamethyltrisiloxane (organosilicone) was incorporated into the APG system at 5% (w/w) surfactant concentration. At mixed surfactant ratio (APG:organosilicone) of 9:1, TEM study showed that SAPG:organosilicone has multilamellar vesicles and LAPG:organosilicone has transient worm-like network. These mixed surfactants imparted difference in rheological behaviour, Newtonian and non-Newtonian, respectively, when they were developed into a microemulsion system of fatty acid methyl esters (FAMEs)/mixed surfactant/water. The dilution of the microemulsions with gentle stirring created a different geometry of nano-emulsions with oval and navette shapes for SAPG and LAPG, respectively. |
| first_indexed | 2024-03-06T07:53:29Z |
| format | Article |
| id | upm.eprints-22279 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:53:29Z |
| publishDate | 2011 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-222792016-09-28T02:30:07Z http://psasir.upm.edu.my/id/eprint/22279/ Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha The self-assembly behaviour of two alkyl polyglucosides (APG) surfactants; octyl/decyl polyglucosides (SAPG) and dodecyl/tetradecyl/hexadecyl polyglucosides (LAPG) in aqueous solution was studied. Critical micelle concentrations (CMC) of the surfactants were determined to predict onset point of surfactants self-assembly. The surfactants were prepared at concentrations 5 × 10− 3, 5 × 10− 2 and 5% (w/w). Transmission electron microscopy (TEM) study showed that the surfactants with spherical-like structure self-assembled to simple rod-like, and then to aggregated rod-like structures with increasing concentration. The results showed that LAPG exhibited larger aggregate than SAPG. The distinctive evolution of self-assembly structures was observed when ethoxylated 3-(3-hydroxypropyl)-heptamethyltrisiloxane (organosilicone) was incorporated into the APG system at 5% (w/w) surfactant concentration. At mixed surfactant ratio (APG:organosilicone) of 9:1, TEM study showed that SAPG:organosilicone has multilamellar vesicles and LAPG:organosilicone has transient worm-like network. These mixed surfactants imparted difference in rheological behaviour, Newtonian and non-Newtonian, respectively, when they were developed into a microemulsion system of fatty acid methyl esters (FAMEs)/mixed surfactant/water. The dilution of the microemulsions with gentle stirring created a different geometry of nano-emulsions with oval and navette shapes for SAPG and LAPG, respectively. Elsevier 2011-02-01 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/22279/1/Self-assembly%20behaviour%20of%20alkylpolyglucosides%20%28APG%29%20in%20mixed%20surfactant-stabilized%20emulsions%20system.pdf Lim, Chaw Jiang and Basri, Mahiran and Omar, Dzolkhifli and Abdul Rahman, Mohd Basyaruddin and Salleh, Abu Bakar and Raja Abdul Rahman, Raja Noor Zaliha (2011) Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system. Journal of Molecular Liquids, 158 (3). pp. 175-181. ISSN 0167-7322; ESSN: 1873-3166 http://www.sciencedirect.com/science/article/pii/S0167732210003387 10.1016/j.molliq.2010.11.015 |
| spellingShingle | Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system |
| title | Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system |
| title_full | Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system |
| title_fullStr | Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system |
| title_full_unstemmed | Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system |
| title_short | Self-assembly behaviour of alkylpolyglucosides (APG) in mixed surfactant-stabilized emulsions system |
| title_sort | self assembly behaviour of alkylpolyglucosides apg in mixed surfactant stabilized emulsions system |
| url | http://psasir.upm.edu.my/id/eprint/22279/1/Self-assembly%20behaviour%20of%20alkylpolyglucosides%20%28APG%29%20in%20mixed%20surfactant-stabilized%20emulsions%20system.pdf |
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