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Chitosan is increasingly used as an alternative to synthetic polymers due to its water solubility, biodegradability, and biological activity. In this work, chitosan samples from three suppliers were evaluated and charact...

An expanding world population and a planet limited in natural resources are two of the main reasons that have propelled the development of scientific and technological solutions that enable the efficient, sustainable, an...

The Nature of Viscoelastic Behavior. Illustrations of Viscoelastic Behavior of Polymeric Systems. Exact Interrelations among the Viscoelastic Functions. Approximate Interrelations among the Linear Viscoelastic Functions....

Molecular imprinted polymers are custom made materials with specific recognition sites for a target molecule. Their specificity and the variety of materials and physical shapes in which they can be fabricated make them i...

Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2024 "Fibre reinforced polymers (FRP) used in outdoor applications are expos...

Os sistemas matriciais são de fácil obtenção e custo reduzido frente a outros sistemas de liberação controlada de fármacos, constituindo-se uma alternativa simples no desenvolvimento de formulações eficazes. Den...

The purpose of this paper was to produce controlled-release matrices with 120 mg of propranolol hydrochloride (PHCl) employing hydroxypropyl methylcellulose (HPMC, Methocel® K100) as the gel forming barrier. Although th...

The present study was undertaken to evaluate the effect of glyceryl monostearate (GMS) and stearic acid (SA) on the release profile of gliclazide from the matrix. Matrix tablets for the controlled delivery of gliclazide ...

Exopolysaccharides (EPS) are high molecular weight biopolymers produced by a wide range of microorganisms, including lactic acid bacteria (LAB). These polymers can be secreted to the external environment (slime EPS) or a...

The deposition of chlorhexidine base on thermosensitive N-isopropylacrylamide polymeric microparticles was assessed in this study using energy dispersive X-ray spectrometry (EDXS) in scanning electron microscopy (SEM) se...

Os polihidroxialcanoatos são poliésteres de hidroxiácidos sintetizados por inúmeras bactérias, como compostos que servem como fonte de carbono intracelular e energia, sendo acumulados na forma de grânulos no cito...

Eugenol (4-allyl-2-methoxyphenol) is a naturally occurring phenol present in many botanical extracts, such as clove, cinnamon, and nutmeg essential oils. The beneficial properties of this compound have been extensively i...

O uso de polissacarídeos tem atraído grande atenção no desenvolvimento de novos sistemas para liberação específica de fármacos. Esses polímeros estão disponíveis em abundância, a baixo custo, apresentando u...

En los últimos años, se ha desarrollado un gran interés por la producción de polímeros denominados funcionales o specialties. Los mismos se destacan por poseer algunas propiedades particulares que dan lugar a aplica...