A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 108-30-5, Name is Dihydrofuran-2,5-dione, molecular formula is C4H4O3. In an article, author is Cong, Yang,once mentioned of 108-30-5, Category: tetrahydrofurans.
Multicompartment Self-assemblies of Triblock Copolymer for Drug Delivery
Novel multicompartment self-assemblies of triblock copolymer polystyrene-polyisoprene-poly(2-vinylpyridine) (PS-PI-P2VP) for drug delivery are demonstrated. The triblock copolymer assemblies in dilute solutions in a common solvent (tetrahydrofuran) undergo transformations from core-shell-corona micelles to multicompartment micelles by adding P2VP-selective solvent (water). The effects of water content and pH on the assembled structures were systematically investigated. Multicompartment micelles are also obtained by adding a surfactant, 4-biphenylcarboxylic acid, into the solution. Such multicompartment self-assemblies are used as carriers for encapsulation and release of an anticancer drug doxorubicin hydrochloride (DOX). The drug loading content and drug loading efficiency of DOX were evaluated. The DOX release experiments were performed at 37 degrees C under pH 5.5 and pH 7.4. The DOX release rate was improved as pH decreased from pH 7.4 to 5.0, with 45.6% release of DOX in 32 h.
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Reference:
Tetrahydrofuran – Wikipedia,
,Tetrahydrofuran | (CH2)3CH2O – PubChem