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Mostrando ítems 11-20 de 22
Artículo
Metal-free catalyzed ring-opening polymerization and block copolymerization of ω-pentadecalactone using amino-ended initiators
(Elsevier, 2018)
Metal-free catalysis was successfully applied to polymerize ω-pentadecalactone (PDL) by ring-opening polymerization (ROP) using several amino-ended initiators, namely hexylamine, allylamine and O,O′-bis(3-aminopropyl)diethylene ...
Artículo
Molecular solids of actinide hexacyanoferrate: Structure and bonding
(IOP Publishing, 2010)
The hexacyanometallate family is well known in transition metal chemistry because the remarkable electronic delocalization along the metal-cyano-metal bond can be tuned in order to design systems that undergo a reversible ...
Artículo
In-Depth Study into Polymeric Materials in Low-Density Gastroretentive Formulations
(MDPI, 2020)
The extensive use of oral dosage forms for the treatment of diseases may be linked to deficient pharmacokinetic properties. In some cases the drug is barely soluble; in others, the rapid transit of the formulation through ...
Artículo
Core cross-linked nanoparticles from self-assembling polyfma-based micelles. Encapsulation of lipophilic molecules
(Elsevier, 2017-04)
The present work describes the preparation of stable organic nanoparticles with potential use as “smart” drug delivery systems capable of encapsulating lipophilic molecules to exert their therapeutic action under the ...
Artículo
Potential energy curves and spin-orbit coupling of light alkali-heavy rare gas molecules
(American Institute of Physics Publising LLC, 2013)
The potential energy curves of the X, A, and B states of alkali-rare gas diatomic molecules, MKr and MXe, are investigated for M = Li, Na, K. The molecular spin-orbit coefficients a(R) = 〈2Π 1/2|ĤSO|2Π1/2〉 and b(R) = ...
Artículo
Biodegradable double cross-linked chitosan hydrogels for drug delivery: Impact of chemistry on rheological and pharmacological performance
(Elsevier, 2020-12)
This study investigates the impact of dual ionic and covalent cross-links (ion-XrL and cov-XrL) on the properties of chitosan-based (CTS) hydrogels as eco-friendly drug delivery systems (DDS) for the model drug diclofenac ...
Artículo
Structurally simple redox polymersomes for doxorubicin delivery
(Elsevier, 2020-08-15)
A simple redox amphiphilic tri-block copolyurethane capable of assembling in the form of polymersome has been easily synthesized. Thus, the hydrophobic core is constituted by a central block containing multiple disulfide ...
Artículo
Nanostructured Chitosan-Based Biomaterials for Sustained and Colon-Specific Resveratrol Release
(MDPI, 2019-01)
In the present work, we demonstrate the preparation of chitosan-based composites as vehicles of the natural occurring multi-drug resveratrol (RES). Such systems are endowed with potential therapeutic effects on inflammatory ...
Artículo
Loading studies of the anticancer drug camptothecin into dual stimuli-sensitive nanoparticles. Stability scrutiny
(Elsevier, 2018-10-25)
In recent years, the preparation of valuable drug delivery systems (DDS) from self-assembled amphiphilic copolymers has attracted much attention since these nanomaterials provide new opportunities to solve problems such ...
Artículo
A diabatic parameterization of the twofold ground state potential energy surface of the H2O-OH molecular complex
(American Institute of Physics Publising LLC, 2013)
We present a matrix functional form to fit the nearly degenerated potential energy surface of the H2O-OH molecular complex. The functional form is based on second order perturbation theory, which allows us to define two ...