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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c01489
|2 doi
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|a DE-627
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|a eng
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| 100 |
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|a Akamatsu, Masaaki
|e verfasserin
|4 aut
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|a Contrast Variation Small-Angle Neutron Scattering Study of Solubilization of Perfumes in Cationic Surfactant Micelles
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 20.09.2021
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|a Date Revised 20.09.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Perfume solubilization is an important process in the production of commercial products such as beverages, foods, and cosmetics. In the present study, small-angle neutron scattering (SANS) experiments were performed to investigate the solubilization behavior of perfumes in cetyltrimethylammonium bromide (CTAB) micelles. The solubilization of linalool (LL) and l-menthol (MT), which are relatively hydrophilic perfumes, did not change the size of the CTAB micelles although the perfumes were incorporated in the micelles, as indicated by a decrease in scattering length density. On the other hand, the solubilization of d-limonene (LN), a hydrophobic perfume, led to the swelling of CTAB micelles. An internal contrast variation SANS study was performed by the deuteration of CTAB molecules to directly observe the perfumes in the micelles. The radius of d-CTAB micelles solubilizing LL or MT corresponds to that of h-CTAB, which indicates that these perfumes are accommodated in the palisade layers of the micelles and are homogeneously distributed in the micelles. On the other hand, LN formed small droplets, as indicated by the SANS profile, which implies the solubilization of LN molecules in the core of the CTAB micelles. We found that the relatively hydrophilic perfumes (LL and MT) show less impact on the sizes of the cationic micelles in comparison to nonionic micelles. Thus, the internal contrast variation method of SANS allowed the direct observation of the solubilization sites of perfumes with different hydrophilicity-hydrophobicity balances. This method is a powerful tool to determine the solubilization states that affect the solubilization capacity, volatilization, or release speed of perfumes
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|a Journal Article
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|a Micelles
|2 NLM
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|a Perfume
|2 NLM
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|a Surface-Active Agents
|2 NLM
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|a Cetrimonium
|2 NLM
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|a Z7FF1XKL7A
|2 NLM
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| 700 |
1 |
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|a Saito, Kai
|e verfasserin
|4 aut
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| 700 |
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|a Iwase, Hiroki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ogura, Taku
|e verfasserin
|4 aut
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| 700 |
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|a Sakai, Kenichi
|e verfasserin
|4 aut
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| 700 |
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|a Sakai, Hideki
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 37(2021), 36 vom: 14. Sept., Seite 10770-10775
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:37
|g year:2021
|g number:36
|g day:14
|g month:09
|g pages:10770-10775
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|u http://dx.doi.org/10.1021/acs.langmuir.1c01489
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