Processes of Encapsulation and Crystallization of Prednisolon in PAAm-<i>b</i>-PEO-<i>b</i>-PAAm Micellar Solutions

Zheltonozhskaya, Tatyana; Partsevskaya, Sofia; Горчев, В. Ф.; Klymchuk, D. O.

doi:10.1080/15421406.2013.874155

Cited by 4 publications

(2 citation statements)

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“…Besides, it is reported that PEO is able to fit in the lattice structure of the water network, leading to a coupling that results in a decrease in thermal motion and hence a mutual stabilization . The block copolymers of PEO-b-PAM form associates in water, which further confirmed that PEO–water and PAM–water interactions are stemmed from different mechanisms. − …”

Section: Resultsmentioning

confidence: 68%

Crowding and Confinement Effects in Different Polymer Concentration Regimes and Their Roles in Regulating the Growth of Nanotubes

et al. 2019

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Among numerous research studies focusing on macromolecular crowding and confinement, few are concerned with the medium at a broad range of concentrations, let alone the interplay between the crowding effect and confinement effect. In this work, we systematically studied the assembly of DNA tiles into nanotubes in polyethylene oxide (PEO) and polyacrylamide (PAM) media covering the concentration range of dilute, semidilute, and concentrated regimes. In light of the structure and kinetics of DNA assembly, both the PEO and PAM media can be divided into three regimes with increasing polymer concentration: the crowding regime, double-effect regime, and confinement regime. In the crowding regime, DNA tiles only form clusters because the assembly into a tube structure is hindered. In the double-effect regime, polymer chains form a transient network whose pore size is close to the diameter of DNA nanotubes. The confinement effect, together with the crowding effect, facilitates the assembly of DNA tiles into a tube structure. In the confinement regime, the length of DNA tubes decreases with polymer concentration, which can be quantitatively described by a scaling relationship. The borderlines of the three regimes are polymer-specific. The PEO medium enters the double-effect regime and confinement regime at concentrations much lower than the PAM medium, suggesting that the PEO medium exhibits stronger macromolecular crowding and confinement effects. We attribute it to the special hydrophilicity of PEO, which has the capability to couple with the lattice structure of a water network, leading to a decrease in thermal motion and hence a mutual stabilization.

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Section: Resultsmentioning

confidence: 68%

Crowding and Confinement Effects in Different Polymer Concentration Regimes and Their Roles in Regulating the Growth of Nanotubes

et al. 2019

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“…і -токоферолацетату (76.4 % мас.) [88,89]. Показана перспективність використання сахаридів як векторів на розроблених міцелярних наноконтейнерах для забезпечення адресної доставки лікарських субстанцій у живих організмах.…”

Section: д г вишневський)unclassified

From Organics to Polymers

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Savchenko

Vretik

et al. 2017

Bull. T. Shevchenko Nat. Univ. Kyiv. Chem.

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Polymers, composites, their components and complexes for application in information tecnologies and biotechnology as well as for medicine and solar energy transfer have been obtained. In particular, new high-resolution photochromic polymer materials with a significant nonlinear optical effect of the third order have been developed. They are perspective for the creation of high-speed optical switches in optical recording and information storage. A new way of recording information based on the generation of the second harmonic with new photochromic polymers has been found. The perspectivity of alken-functionalised poly(phenyl/naphthylmethacrylates) as basic compounds for polarization-sensitive polymeric media was prooved.The chemical modification of polymers by benzenesulfonamide derivatives for biostabilization of plastic masses and providing hydrophilic properties for their surface was carried out. A fundamentally new approach is developed in which processes of energy transfer of excited states in polymer macromolecule to the photostabilaser are used for effective stabilization of polymer materials. Thermostabilized samples of polystyrene with covalently bonded of imidophenylmethacrylates have been developed. The branched copolymers are highly efficient matrices for the synthesis of stable gold, silver, CdS and Au / CdS nanoparticles and copolymers that can be used as nanovectors for the target delivery of highly toxic antitumor drugs. New effective preparations for desinfaсtion of fish nurseries, dressing and hygienic materials, linen and clothes have been developed.

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Compositions of α-tocopheryl acetate with micellar nanocarriers and their possible use as biologically active additives

et al. 2021

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Processes of Encapsulation and Crystallization of Prednisolon in PAAm-b-PEO-b-PAAm Micellar Solutions

Cited by 4 publications

References 16 publications

Crowding and Confinement Effects in Different Polymer Concentration Regimes and Their Roles in Regulating the Growth of Nanotubes

Crowding and Confinement Effects in Different Polymer Concentration Regimes and Their Roles in Regulating the Growth of Nanotubes

From Organics to Polymers

Compositions of α-tocopheryl acetate with micellar nanocarriers and their possible use as biologically active additives

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