https://scholars.lib.ntu.edu.tw/handle/123456789/626356
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Wang C.-A | en-US |
dc.contributor.author | Yeh Y.-Q | en-US |
dc.contributor.author | CHUNG-YUAN MOU | en-US |
dc.contributor.author | Su C.-J | en-US |
dc.contributor.author | Wu W.-R | en-US |
dc.contributor.author | Jeng U.-S. | en-US |
dc.creator | Wang C.-A;Yeh Y.-Q;Mou C.-Y;Su C.-J;Wu W.-R;Jeng U.-S. | - |
dc.date.accessioned | 2022-12-14T03:45:16Z | - |
dc.date.available | 2022-12-14T03:45:16Z | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 02540584 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120322778&doi=10.1016%2fj.matchemphys.2021.125435&partnerID=40&md5=a36d300fc93b3675425ebead3a88943a | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/626356 | - |
dc.description.abstract | Structure and composition of the unilamellar vesicles (ULV) formed with catanionic surfactant of sodium dodecylsulfate (SDS) and cetyltrimethylammonium bromide (CTAB) are revealed using small-angle X-ray and neutron scattering (SAXS and SANS) and freeze-fracture-replication transmission electron microscopy (FFR-TEM). Imaging and scattering results consistently indicate a globular shape of the ULV, having a core size of 48 nm and a bilayer thickness of 32 Å; the bilayer comprises a central aliphatic shell of 24 Å, sandwiched by two headgroup shells, each of ca. 4 Å thickness. From the zero-angle scattering intensity ratio of the SAXS and SANS data, a CTAB/SDS composition ratio of 4:3 for the ULV bilayer is deduced. Poly(oxyethylene-b-oxypropylene-b-oxyethylene) (P123), a triblock copolymer, is found to intervene into the ULV bilayer of the catanionic surfactant in solution, leading to successively enlarged complex ULV, as P123 concentration in the solution increases. The ULV of SDS/CTAB is saturated with P123-loading after a critical concertation of 0.067 mM P123; thereafter, formation and proliferation of constant-sized, P123-based core-shell micelles are observed with increase of P123 concentration. A structural model of P123-embedded ULV of the catanionic surfactant is proposed. These results suggest a capacity and limits of using the catanionic ULV as molecule carriers. © 2021 Elsevier B.V. | - |
dc.relation.ispartof | Materials Chemistry and Physics | - |
dc.subject | Catanionic surfactant; FFR-TEM; Molecule carrier; SAXS and SANS; Unilamellar vesicles | - |
dc.subject.other | High resolution transmission electron microscopy; Micelles; Neutron scattering; Polyethylene oxides; Sodium dodecyl sulfate; Bi-layer; Catanionic surfactants; Cetyltrimethylammonium bromide; Freeze fracture; Freeze-fracture-replication transmission electron microscopy; Molecule carrier; SAXS and SANS; Small angle scattering; Sodium dodecyl sulphate; Unilamellar vesicle; Molecules | - |
dc.title | Small-angle-scattering resolved catanionic unilamellar vesicles as molecule carriers | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/j.matchemphys.2021.125435 | - |
dc.identifier.scopus | 2-s2.0-85120322778 | - |
dc.relation.journalvolume | 277 | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Chemistry | - |
crisitem.author.dept | Center for Condensed Matter Sciences | - |
crisitem.author.orcid | 0000-0001-7060-9899 | - |
crisitem.author.parentorg | College of Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 化學系 |
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