scholarly journals Tuning loading and release by modification of micelle core crystallinity and preparation

2015 ◽  
Vol 26 (7) ◽  
pp. 880-888 ◽  
Author(s):  
Lidija Glavas ◽  
Karin Odelius ◽  
Ann‐Christine Albertsson
Keyword(s):  
Micelle Core

scholarly journals Studying the “Rigid–Flexible” Properties of Polymeric Micelle Core-Forming Segments with a Hydrophobic Phthalocyanine Probe Using NMR and UV Spectroscopy

Langmuir ◽  
2021 ◽  
Author(s):  
Łukasz Lamch ◽  
Roman Gancarz ◽  
Marta Tsirigotis-Maniecka ◽  
Izabela M. Moszyńska ◽  
Justyna Ciejka ◽  
...  
Keyword(s):  
Uv Spectroscopy ◽  
Polymeric Micelle ◽  
Micelle Core

Estimation of Surfactant Tail Transfer Free Energies from Polar Solvents to Micelle Core

Langmuir ◽  
1995 ◽  
Vol 11 (12) ◽  
pp. 4673-4677 ◽  
Author(s):  
R. Nagarajan ◽  
Chien-Chung Wang
Keyword(s):  
Free Energies ◽  
Polar Solvents ◽  
Micelle Core

Synthesis of Shell Cross-Linked Block Copolymer Micelles with Poly(p-styrenesulfonic acid) in the Micelle Core

2005 ◽  
Vol 38 (24) ◽  
pp. 9957-9962 ◽  
Author(s):  
Kozo Matsumoto ◽  
Tetsuo Hirabayashi ◽  
Tamotsu Harada ◽  
Hideki Matsuoka
Keyword(s):  
Block Copolymer ◽  
Micelle Core ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Residence-time of muonium at micelles: Effect of added micelles on the reactivity of muonium towards ionic solutes in water

1988 ◽  
Vol 66 (8) ◽  
pp. 1979-1983 ◽  
Author(s):  
Krishnan Venkateswaran ◽  
Mary V. Barnabas ◽  
Bill W. Ng ◽  
David C. Walker
Keyword(s):  
Residence Time ◽  
Rate Constant ◽  
Mean Residence Time ◽  
Effective Rate Constant ◽  
Effective Rate ◽  
Diffusion Time ◽  
Water Penetration ◽  
Micellar Structure ◽  
Micelle Core ◽  
Ionic Solutes

The effective rate constant for the reaction of muonium with NO3−, S2O32−, and Tl+ ions in water is altered by the addition of micelles. There is a decrease when the charge on the micelle is the same as that of the solute and an increase when their charges are opposite. From the magnitude of the effect a mean residence-time for muonium of 2 ns has been deduced for dodecyl sulphate micelles. This suggests there is barely any preferred localization, because 2 ns is smaller, even, than the expected diffusion time if the micelle core is as viscous as reported. This use of muonium atoms to probe the dynamics of micelles seems to support the view that there are regions of low microviscosity and considerable water penetration within the micellar structure.

Block copolymers for drug solubilisation: Relative hydrophobicities of polyether and polyester micelle-core-forming blocks

2007 ◽  
Vol 345 (1-2) ◽  
pp. 35-41 ◽  
Author(s):  
D ATTWOOD ◽  
C BOOTH ◽  
S YEATES ◽  
C CHAIBUNDIT ◽  
N RICARDO
Keyword(s):  
Block Copolymers ◽  
Micelle Core

scholarly journals Tuning small molecule release from polymer micelles: Varying H2S release through crosslinking in the micelle core

2020 ◽  
Vol 141 ◽  
pp. 110077
Author(s):  
Ryan J. Carrazzone ◽  
Jeffrey C. Foster ◽  
Zhao Li ◽  
John B. Matson
Keyword(s):  
Small Molecule ◽  
Polymer Micelles ◽  
Micelle Core

Precise Tuning of Micelle, Core, and Shell Size by the Composition of Amphiphilic Block Copolymers Derived from ROMP Investigated by DLS and SAXS

2006 ◽  
Vol 39 (17) ◽  
pp. 5865-5874 ◽  
Author(s):  
Kurt Stubenrauch ◽  
Christian Moitzi ◽  
Gerhard Fritz ◽  
Otto Glatter ◽  
Gregor Trimmel ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Amphiphilic Block Copolymers ◽  
Shell Size ◽  
Micelle Core

Photochemical properties of substituted tetraazachlorins

2014 ◽  
Vol 18 (06) ◽  
pp. 457-464 ◽  
Author(s):  
Anton P. Lastovoy ◽  
Nina A. Kuznetsova ◽  
Ludmila K. Slivka ◽  
Elena A. Makarova
Keyword(s):  
Singlet Oxygen ◽  
Colloidal Solution ◽  
Quantum Yields ◽  
Aromatic Rings ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Micelle Core ◽  
Photodegradation Mechanism ◽  
Photochemical Properties ◽  
Aqueous Micellar Solutions

The photochemical properties of water-insoluble metal-free tetraazachlorin derivatives in organic solvents and aqueous micellar solutions of nonionic surfactants were investigated. The quantum yields of fluorescence, singlet oxygen generation and photodegradation were evaluated in benzene. The highest photostability and singlet oxygen quantum yield (ΦΔ = 0.7) was found for 2,2,3,3-tetramethyl-7,8,12,13,17,18-hexaphenyltetraazachlorin. The moderate ΦΔ values (0.21–0.35) of triarenotetraazachlorins in benzene were established. Expansion of tetraazachlorin π-system by fusion of three aromatic rings leads to reduction of efficiency of singlet oxygen generation. The study of photodegradation mechanism shows that radical photooxidation apparently is most plausible, though 1 O 2 may partly contribute to photodestruction of some tetraazachlorins. In aqueous colloidal solution of nonionic surfactant (Cremophor EL) the same, as in benzene, effect of sensitizer structure upon efficacy of singlet oxygen production was observed. It was shown that 1 O 2 diffusion from micelle core into solution and then to target slows its oxidation rate substantially in comparison to the case where sensitizer and target are localized in the same micelle.

Sign in / Sign up

Export Citation Format

Share Document